Texas Instruments BQ2463X EVM User Manual

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User's Guide

SLUU396A – January 2010 – Revised July 2010

bq2461x/bq2463x EVM (HPA422) Multi-CellSynchronousSwitch-ModeCharger

 

 

Contents

 

1

Introduction ..................................................................................................................

2

 

1.1

EVM Features ......................................................................................................

2

 

1.2

General Description ................................................................................................

2

 

1.3

I/O Description ......................................................................................................

2

 

1.4

1.4 Controls and Key Parameters Setting ......................................................................

3

 

1.5

Recommended Operating Conditions ...........................................................................

3

2

Test Summary ...............................................................................................................

4

 

2.1

Definitions ...........................................................................................................

4

 

2.2

Equipment ...........................................................................................................

4

 

2.3

Equipment Setup ...................................................................................................

5

 

2.4

Procedure ...........................................................................................................

6

3

PCB Layout Guideline ......................................................................................................

7

4

Bill of Materials, Board Layout and Schematics ........................................................................

8

 

4.1

Bill of Materials .....................................................................................................

8

5

Board Layout ...............................................................................................................

11

6

Schematics .................................................................................................................

19

 

List of Figures

 

1

Original Test Setup for HPA422 (bq2461x/bq2463x EVM)............................................................

5

2

Top Layer...................................................................................................................

11

3

2nd Layer ....................................................................................................................

12

4

3rd Layer.....................................................................................................................

13

5

Bottom Layer ...............................................................................................................

14

6

Top Assembly ..............................................................................................................

15

7

Bottom Assembly ..........................................................................................................

16

8

Top Silkscreen .............................................................................................................

17

9

Bottom Silkscreen .........................................................................................................

18

10

bq2461x/bq2463x EVM Schematic .....................................................................................

19

 

 

List of Tables

1

I/O Description...............................................................................................................

2

2

Controls and Key Parameters Setting....................................................................................

3

3

Recommended Operating Conditions ....................................................................................

3

4

Bill of Materials ..............................................................................................................

8

SLUU396A –January2010–RevisedJuly 2010

bq2461x/bq2463x EVM (HPA422) Multi-CellSynchronousSwitch-ModeCharger

1

Copyright © 2010, Texas Instruments Incorporated

Introduction

www.ti.com

1 Introduction

1.1EVM Features

Evaluation Module For bq2461x/bq2463x

High Efficiency Synchronous Buck Charger

User-programmableup to 26V Battery Voltage

AC Adapter Operating Range 5 V–28V

LED Indication for Control and Status Signals.

Test Points for Key Signals Available for Testing Purpose. Easy Probe Hook-up.

Jumpers Available. Easy to Change Connections.

1.2General Description

The bq2461x is highly integrated Li-ionorLi-polymerswitch-modebattery charge controllers. The bq2463x is highly integratedswitch-modebattery charge controllers designed specifically to charge Lithium Phosphate battery chemistries.

They offer a constant-frequencysynchronous PWM controller with high accuracy charge current and voltage regulation, adapter current regulation, termination, charge preconditioning, and charge status monitoring,

The bq2461x/bq2463x charges the battery in three phases: preconditioning, constant current, and constant voltage. Charge is terminated when the current reches a minimum user-selectablelevel. A programmable charge timer provides a safety backup for charge termination. The bq2461x/bq2463x automatically restarts the charge cycle if the battery voltage falls below an internal threshold, and enters alow-quiescentcurrent sleep mode when the input voltage falls below the battery voltage.

The dynamic power management (DPM) function modifies the charge current depending on system load conditions, avoiding ac adapter overload.

High accuracy current sense amplifiers enable accurate measurement of the ac adapter current, allowing monitoring of overall system power.

For details, see bq24610 and bq24617 (SLUS892), bq24616 (SLUSA49) and bq2463x (SLUS894) data sheets.

1.3I/O Description

 

 

 

 

 

Table 1. I/O Description

 

 

 

 

 

 

 

 

 

 

 

 

Jack

Description

 

 

 

 

 

 

 

 

 

 

J1–DCIN

AC adapter, positive output

 

 

 

 

 

 

 

 

 

 

J1–GND

AC adapter, negative output

 

 

 

 

 

 

 

 

 

 

J2–VEXT

External power supply, positive output

 

 

 

 

 

 

 

 

 

 

J2–GND

External power supply, negative output

 

 

 

 

 

 

 

 

 

 

J2–TTC

Timer capacitor pin

 

 

 

 

 

 

 

 

 

 

J3–ACSET

Input current program pin

 

 

 

 

 

 

 

 

 

 

J3–ISET1

Charge Current Program Pin

 

 

 

 

 

 

 

 

 

 

J3–ISET2

Pre-charge/Terminationprogram pin

 

 

 

 

 

 

 

 

 

 

J3–GND

Ground

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Power Good (active low)

 

 

 

 

J–PG

 

 

 

 

 

J4–CHGEN

Charge enable

 

 

 

 

 

 

 

 

 

 

 

 

J4–VREF

IC reference voltage VREF

 

 

 

 

 

 

 

 

 

 

 

 

J4–TS

Temperature Qualification Voltage Input

 

 

 

 

 

 

 

 

 

 

 

 

J5–VSYS

Connected to system

 

 

 

 

 

 

 

 

 

 

 

 

J5–VBAT

Connected to battery pack

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

bq2461x/bq2463x EVM (HPA422) Multi-CellSynchronousSwitch-ModeCharger

SLUU396A –January2010–RevisedJuly 2010

Copyright © 2010, Texas Instruments Incorporated

www.ti.com Introduction

 

Table 1. I/O Description (continued)

 

 

 

Jack

 

Description

 

 

 

J5–GND

 

Ground

 

 

 

JP1–LOW

 

Ground

 

 

 

JP1–TTC

 

Timer capacitor pin

 

 

 

JP1–HI

 

Pull-upvoltage source

 

 

 

JP2–HI

 

Pull-upvoltage source

 

 

 

JP2–LEDPWR

 

LED Pull-uppower line

 

 

 

JP3–VREF

 

IC reference voltage VREF

 

 

 

JP3–VPULLUP

 

Pull-upvoltage source

 

 

 

JP3–EXT

 

External voltage supply from J2

 

 

 

JP4–VCC

 

Pull-upvoltage source of ACDRV and BATDRV LED logic circuit

 

 

 

JP4–VCOM

 

Q7 and Q11 common source

 

 

 

JP5–HI

 

Pull-upvoltage source

 

 

 

JP5–CHGEN

 

Charge enable

 

 

 

1.41.4 Controls and Key Parameters Setting

Table 2. Controls and Key Parameters Setting

Jack

 

Description

Factory Setting

 

 

 

 

TTC setting

 

JP1

1-2

: Connect TTC to GROUND (Disable termination and the safety timer)

Jumper on 2-3(TTC and VPULLUP)

2-3

: Connect TTC to VPULLUP (Allow termination, but disable the safety time)

 

 

 

2 floating: Allow termination, CTTC sets the safety timer

 

 

 

 

JP2

The pull-uppower source supplies the LEDs when on.

Jumper On

LED has no power source when off.

 

 

 

 

 

 

VPULLUP setting

Jumper On 1-2(VPULLUP and

JP3

1-2

: Connect VPULLUP to VREF

VREF)

 

2-3

: Connect VPULLUP to VEXT

 

 

 

 

 

JP4

The pull-upvoltage source of ACDRV and BATDRV LED logic circuit.

Jumper on

 

 

 

 

CHGEN setting

 

JP5

Jumper on: CHGEN to VPULLUP

Jumper Off

 

Jumper off: CHGEN is set to low by pull down resistor.

 

 

 

 

 

1.5Recommended Operating Conditions

Table 3. Recommended Operating Conditions

Symbol

Description

Min

Typ

Max

Unit

 

 

 

 

 

 

 

 

 

 

24(617)

 

Supply voltage, VIN

Input voltage from ac adapter input

5

24

28

V

 

 

 

 

(610/616/63x)

 

 

 

 

 

 

 

Battery voltage, VBAT

Voltage applied at VBAT terminal of J5

2.1 (61x)

21 (61x)

 

V

1.8 (63x)

18 (63x)

 

 

 

 

 

 

 

 

 

 

 

Supply current, IAC

Maximum input current from ac adapter

0

 

4.5

A

input

 

 

 

 

 

 

 

 

 

 

 

 

Charge current, Ichrg

Battery charge current

2

3

8

A

 

 

 

 

 

 

Operating junction

 

0

 

125

°C

temperature range, TJ

 

 

 

 

 

 

 

The bq2461x/bq2463x EVM board requires a regulated supply approximately 0.5 V minimum above the regulated voltage of the battery pack to a maximum input voltage of 28 VDC.

SLUU396A –January2010–RevisedJuly 2010

bq2461x/bq2463x EVM (HPA422) Multi-CellSynchronousSwitch-ModeCharger

3

Copyright © 2010, Texas Instruments Incorporated

Test Summary

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R25 and R28 can be changed to regulate output.

VBAT = 2.1V × [1+ R25/R28]; for bq2461x;

VBAT = 1.8V × [1+ R25/R28]; for bq2463x;

Adjust the input voltage as required. Output set to operate at 21V (bq2461x) or 18V (bq2463x) from the factory.

2 Test Summary

2.1Definitions

This procedure details how to configure the HPA422 evaluation board. On the test procedure the following naming conventions are followed. See the HPA422 schematic for details.

VXXX:

External voltage supply name (VADP, VBT, VSBT)

LOADW:

External load name (LOADR, LOADI)

V(TPyyy):

Voltage at internal test point TPyyy. For example, V(TP12) means the voltage at TP12

V(Jxx):

Voltage at jack terminal Jxx.

V(TP(XXX)):

Voltage at test point "XXX". For example, V(ACDET) means the voltage at the test

 

point which is marked as "ACDET".

V(XXX, YYY):

Voltage across point XXX and YYY.

I(JXX(YYY)):

Current going out from the YYY terminal of jack XX.

Jxx(BBB):

Terminal or pin BBB of jack xx

Jxx ON:

Internal jumper Jxx terminals are shorted

Jxx OFF:

Internal jumper Jxx terminals are open

Jxx (-YY-)ON:

Internal jumper Jxx adjacent terminals marked as "YY" are shorted

Measure:→ A,B

Check specified parameters A, B. If measured values are not within specified limits the

 

unit under test has failed.

Observe → A,B

Observe if A, B occur. If they do not occur, the unit under test has failed.

Assembly drawings have location for jumpers, test points and individual components.

2.2Equipment

2.2.1Power Supplies

Power Supply #1 (PS#1): a power supply capable of supplying 30-Vat5-Ais required.

Power Supply #2 (PS#2): a power supply capable of supplying 5-Vat1-Ais required.

Power Supply #3 (PS#3): a power supply capable of supplying 5-Vat1-Ais required.

2.2.2LOAD #1

A 30V (or above), 5A (or above) electronic load that can operate at constant current mode

2.2.3LOAD #2

A Kepco bipolar operational power supply/amplifier, 0 ±30V (or above), 0 ±6A (or above).

2.2.4Oscilloscope

Tektronix TDS3054 scope or equivalent, 10X voltage probe.

4

bq2461x/bq2463x EVM (HPA422) Multi-CellSynchronousSwitch-ModeCharger

SLUU396A –January2010–RevisedJuly 2010

Copyright © 2010, Texas Instruments Incorporated

www.ti.com

Test Summary

2.2.5METERS

Seven Fluke 75 multimeters, (equivalent or better)

Or: Four equivalent voltage meters and three equivalent current meters.

The current meters must be capable of measuring 5A+ current

2.3Equipment Setup

1.Set the power supply #1 for 0V ± 100mVDC, 5.0 ± 0.1A current limit and then turn off supply.

2.Connect the output of power supply #1 in series with a current meter (multimeter) to J1 (VIN, GND).

3.Connect a voltage meter across J1 (VIN, GND).

4.Set the power supply #2 for 0V ± 100mVDC, 1.0 ± 0.1A current limit and then turn off supply.

5.Connect the output of the power supply #2 to J4 and J5 (TS, GND).

6.Connect Load #1 in series with a current meter to J5 (SYS, GND). Turn off Load #1

7.Connect Load #2 in series with a current meter to J5 (BAT, GND). Turn off Load #2.

8.Connect a voltage meter across J5 (BAT, GND).

9.Connect an oscilloscope's probe across J5 (BAT, GND)

10.Connect a voltage meter across J5 (SYS, GND).

11.JP1 (TTC and HI): ON, JP2: ON, JP3 (VPULLUP and VREF): ON, JP4: ON, JP5: OFF.

After the above steps, the test setup for HPA422 is shown in Figure 1.

Power supply #1

 

bq24610/616/617/30 EVM

 

 

 

 

 

 

 

J1

HPA422

 

 

 

 

 

 

 

 

PH

 

 

 

 

 

 

 

I

 

 

 

 

 

Isys

 

 

Iin

ACPWR

TP1

 

TP12

 

 

 

 

 

 

SYS

 

 

 

 

 

V

ACPWR

 

 

 

 

I

Load

 

 

 

 

 

 

 

 

PGND

 

 

 

 

 

 

 

 

 

 

 

 

J5

V

 

 

#1

 

 

 

 

 

SYS

 

 

 

 

 

TP2

 

 

BAT

 

 

I

 

 

 

U1

 

 

 

 

Load

 

 

 

 

 

 

 

 

 

 

 

 

 

 

V

Ibat

 

 

J3

 

 

TP9

PGND

 

#2

 

VCC

 

 

 

 

 

 

 

ACSET

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ISET1

 

JP4

 

 

 

 

 

 

 

ISET2

 

 

 

 

 

 

 

 

 

 

VBAT

 

 

 

Oscilloscope

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GND

 

APPLICATION CIRCUIT

 

 

 

 

I

 

 

 

 

 

 

 

 

 

 

 

VREF

 

 

 

 

 

 

 

 

J2

JP3

 

J4

 

 

 

 

 

VEXT

 

 

 

 

 

 

 

VEXT

HI

 

 

 

 

 

 

 

 

GND

 

 

PG

 

 

 

 

 

L

JP1

 

 

 

 

Power

 

 

TTC

O

JP2

JP5

STAT1

 

 

 

 

 

 

 

 

VREF

 

sup ply #2

 

 

 

 

 

 

TS

 

 

 

 

/ACDRV

/BATDRV

CE

PG

/STAT1

/STAT2

Figure 1. Original Test Setup for HPA422 (bq2461x/bq2463x EVM)

SLUU396A –January2010–RevisedJuly 2010

bq2461x/bq2463x EVM (HPA422) Multi-CellSynchronousSwitch-ModeCharger

5

Copyright © 2010, Texas Instruments Incorporated

Test Summary

www.ti.com

2.4Procedure

2.4.1AC Adapter Detection Threshold

1.Make sure EQUIPMENT SETUP steps are followed. Turn on PS#2.

2.Turn on PS#1

Measure → V(J5(SYS)) = 0 ± 500mVMeasure → V(TP(VREF)) = 0V ± 1000mVMeasure → V(TP(REGN)) = 0V ± 500mV

3.Increase the output voltage on PS#1 until D5 (PG) on but do not exceed 5V. Set the power supply #2 to 1.8V ± 100mVDC

Measure → V(J1(VIN)) = 4.5V ± 0.5VMeasure → V(J5(SYS)) = 4.5V ± 0.5VMeasure → V(TP(VREF)) = 3.3V ± 200mVMeasure → V(TP(REGN)) = 0V ± 500mVMeasure → D4 (/ACDRV) on, D5 (PG) on

2.4.2Charger Regulation Voltage

1.Increase the voltage of PS#1 until V(J1(VIN)) = 24V ± 0.1V. Measure → V(J5(BAT, GND)) = 0V ± 1V

2.Put JP5 on (Enable the charging). Observe → D3 (CE) on.

Measure → Peak V(J5(BAT)) = 21.0V ± 1V (bq2461x) Peak V(J5(BAT)) = 18.0V ± 1V (bq2463x)

Measure → V(TP(REGN)) = 6V ± 500mV

2.4.3Charge Current and AC Current Regultion (DPM)

1.Take off JP5 (Disable the charging).

2.Connect the Load #2 in series with a current meter (multimeter) to J5 (BAT, GND). Make sure a voltage meter is connected across J5 (BAT, GND). Turn on the Load #2. Set the output voltage to 12V (bq2461x) or 2V (bq2463x).

3.Connect the output of the Load #1 in series with a current meter (multimeter) to J5 (SYS, GND). Make sure a voltage meter is connected across J5 (SYS, GND). Turn on the power of the Load #1. Set the load current to 3.0A ± 50mA but disable the load #1. The setup is now like Figure 1 for HPA422. Make sure Ibat = 0A ± 10mA and Isys = 0A ± 10mA.

4.Put JP5 on (Enable the charging). Observe → D3 (CE) on

Measure → Ibat = 300mA ± 200mA (bq2461x) Ibat = 125mA ± 60mA (bq2463x)

Observe → D7 (STAT1) on; D8 (STAT2) off.

5.Set the Load #2 output voltage to 16.5V. Measure → Ibat = 3000mA ± 300mA Observe → D7 (STAT1) on; D8 (STAT2) off.

6.Enable the output of the Load #1

Measure → Isys = 3000mA ± 200mA, Ibat = 1400mA ± 500mA, Iin = 4000mA ± 500mA

7.Turn off the Load #1.

Measure → Isys = 0 ± 100mA, Ibat = 3000mA ± 300mA.

8.Increase the Load #2 output voltage from 16.5V to 22V (61x) or 19V (63x). Measure → Isys = 0 ± 100mA, Ibat = 0mA ± 100mA.

Observe → D7 (STAT1) off; D8 (STAT2) on.

9.Decrease the Load #2 output voltage back to 16.5V. Observe → D7 (STAT1) on; D8 (STAT2) off.

6

bq2461x/bq2463x EVM (HPA422) Multi-CellSynchronousSwitch-ModeCharger

SLUU396A –January2010–RevisedJuly 2010

Copyright © 2010, Texas Instruments Incorporated

www.ti.com

PCB Layout Guideline

2.4.4Charger Cut-Offby Thermistor

1.Slowly increase the output voltage of PS2 until Ibat = 0 ± 10mA. Measure → V(J4(TS)) = 2.44V ± 200mV

Observe → D7 (STAT1) off; D8 (STAT2) off.

2.Slowly decrease the output voltage of PS2 to 1.4V ± 0.1V. Measure → V(J4(TS)) = 1.4V ± 100mV

Measure → Ibat = 3000mA ± 300mA (bq24610/617) Ibat = 0mA ± 100mA (bq24616)

Ibat = 375mA ± 150mA (bq2463x)

Observe → D7 (STAT1) on; D8 (STAT2) off (bq24610/617/630) Observe → D7 (STAT1) off; D8 (STAT2) off (bq24616)

3.Slowly decrease the output voltage of PS2.

Charge will resume. Continue to decrease the output voltage of PS2 slowly until Ibat = 0 ±10mA. Measure → V(J4(TS)) = 1.14V ± 200mV

Observe → D7 (STAT1) off; D8 (STAT2) off.

4.Slowly increase the output voltage of PS2 to 1.8V ± 100mV. Measure → Ibat = 3000mA ± 200mA

Observe → D7 (STAT1) on; D8 (STAT2) off.

2.4.5Power Path Selection

1.Take off JP5 (Disable the charging) Observe → D3 (CE) off; D7 (STAT1) off.

2.Set JP3 Jumper On 2-3(VPULLUP and VEXT). Connect the output of the power supply #3 to J2(VEXT, GND). Set the power supply #3 for 3.3V ± 200mVDC, 1.0 ± 0.1A current limit.

3.Set the Load #2 output voltage to 16.5V ± 500mV.

4.Measure → V(J5(SYS)) = 24V ± 1V (adapter connected to system)

Observe → D4 (ACDRV) on, D6 (BATDRV) off, D5 (PG) on, D7 (STAT1) off, D8 (STAT2) off.

5.Turn off PS#1.

6.Measure → V(J5(SYS)) = 16.5V ± 0.5V (battery connected to system)

7.Observe → D4 (ACDRV) off, D6 (BATDRV) on, D5 (PG) off, D7 (STAT1) off, D8 (STAT2) off.

8.Turn off power supply #2 and #3. Set JP3 on 1-2(VPULLUP and VREF).

3PCB Layout Guideline

1.It is critical that the exposed power pad on the backside of the bq2461x/bq2463x package be soldered to the PCB ground. Make sure there are sufficient thermal vias right underneath the IC, connecting to the ground plane on the other layers.

2.The control stage and the power stage should be routed separately. At each layer, the signal ground and the power ground are connected only at the power pad.

3.AC current sense resistor must be connected to ACP and ACN with a Kelvin contact. The area of this loop must be minimized. The decoupling capacitors for these pins should be placed as close to the IC as possible.

4.Charge current sense resistor must be connected to SRP, SRN with a Kelvin contact. The area of this loop must be minimized. The decoupling capacitors for these pins should be placed as close to the IC as possible.

5.Decoupling capacitors for DCIN, VREF, VCC, REGN should make the interconnections to the IC as short as possible.

6.Decoupling capacitors for BAT must be placed close to the corresponding IC pins and make the interconnections to the IC as short as possible.

7.Decoupling capacitor(s) for the charger input must be placed close to top buck FET's drain and bottom buck FET’s source.

SLUU396A –January2010–RevisedJuly 2010

bq2461x/bq2463x EVM (HPA422) Multi-CellSynchronousSwitch-ModeCharger

7

Copyright © 2010, Texas Instruments Incorporated

Bill of Materials, Board Layout and Schematics

www.ti.com

4 Bill of Materials, Board Layout and Schematics

4.1Bill of Materials

Table 4. Bill of Materials

bq24610-001

bq24617-002

Bq24630-003

bq24616-004

Value

RefDes

Description

Size

Part Number

Mfr

 

 

 

 

 

 

 

 

 

 

1

0

0

0

bq24610RGE

U1

Charger Controller IC

QFN-24(RGE)

bq24610RGE

TI

 

 

 

 

 

 

 

 

 

 

0

1

0

0

bq24617RGE

U1

Charger Controller IC

QFN-24(RGE)

bq24617RGE

TI

 

 

 

 

 

 

 

 

 

 

0

0

1

0

bq24630RGE

U1

Charger Controller IC

QFN-24(RGE)

bq24630RGE

TI

 

 

 

 

 

 

 

 

 

 

0

0

0

1

bq24616RGE

U1

Charger Controller IC

QFN-24(RGE)

bq24616RGE

TI

 

 

 

 

 

 

 

 

 

 

1

1

1

1

0.1uF

C3

Capacitor, Ceramic, 16V, X7R, 5%,

603

STD

STD

 

 

 

 

 

 

 

 

 

 

6

6

6

6

0.1uF

C7,C8,C13,C1

Capacitor, Ceramic, 16V, X7R, 10%

603

STD

STD

 

 

 

 

 

8,C19,C33

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6

6

6

6

0.1uF

C4,C5,C16,C1

Capacitor, Ceramic, 50V, X7R, 10%

603

STD

STD

 

 

 

 

 

7,C24,C26

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

1

1

1

22p

C22

Capacitor, Ceramic, 50V, X7R, 10%

603

STD

STD

 

 

 

 

 

 

 

 

 

 

0

0

0

0

 

C9,C21,C30,C

Capacitor, Ceramic, 50V, X7R, 10%

603

STD

STD

 

 

 

 

 

31

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

3

3

3

1.0uF

C1,C6,C15

Capacitor, Ceramic, 16V, X7R, 20%

805

STD

STD

 

 

 

 

 

 

 

 

 

 

0

0

0

0

 

C34

Capacitor, Ceramic, 50V, X7R, 10%

805

STD

STD

 

 

 

 

 

 

 

 

 

 

2

2

2

2

1.0uF/50V

C12,C14

Capacitor, Ceramic, 50V, X5R, 20%

1206

STD

STD

 

 

 

 

 

 

 

 

 

 

1

1

1

1

2.2uF/50V

C2

Capacitor, Ceramic, 50V, X7R, 20%

1206

STD

STD

 

 

 

 

 

 

 

 

 

 

0

0

0

0

 

C32

Capacitor, Ceramic, 50V, X7R, 20%

1206

STD

STD

 

 

 

 

 

 

 

 

 

 

6

6

6

6

10uF/50V

C10,C11,C20,

Capacitor, Ceramic, 50V, Y5V,

1812

STD

STD

 

 

 

 

 

C23,C28,C29

-20/+80%

 

 

 

 

 

 

 

 

 

 

 

 

 

0

0

0

0

 

C25,C27

Capacitor, Ceramic, 50V, X5R, 20%

1812

STD

STD

 

 

 

 

 

 

 

 

 

 

0

0

0

0

 

D11

Diode, Zener, 7.5V, 350-mW

SOT-23

BZX84C7V5

Diodes

 

 

 

 

 

 

 

 

 

 

0

0

0

0

 

D10

Diode, Schottky, 200-mA,30-V

SOT23

BAT54

Vishay-Liteon

 

 

 

 

 

 

 

 

 

 

0

0

0

0

 

D9

Diode, Zener, 7.5V, 350-mW

SOT-23

BZX84C7V5

Diodes

 

 

 

 

 

 

 

 

 

 

6

6

6

6

Green

D3,D4,D5,D6,

Diode, LED, Green, 2.1V, 20mA, 6mcd

603

LTST-

Lite On

 

 

 

 

 

D7,D8

 

 

C190GKT

 

 

 

 

 

 

 

 

 

 

 

0

0

0

0

 

D2

Diode, Schottky, 1A, 40V

DO-214AA

MBRS140

Fairchild

 

 

 

 

 

 

 

 

 

 

1

1

1

1

ZLLS350

D1

Diode, Schottky, 1.16A, 40-V

SOD-523

ZLLS350

Zetex

 

 

 

 

 

 

 

 

 

 

1

1

0

1

6.8uH

L1

Inductor, SMT, 9A, 19.8milliohm

0.520 sq inch

IHLP5050CEE

Vishay

 

 

 

 

 

 

 

 

R6R8M01

 

 

 

 

 

 

 

 

 

 

 

0

0

1

0

8.2uH

L1

Inductor, SMT, 9.5A, 18.3milliohm

0.520 sq inch

IHLP5050CEE

Vishay

 

 

 

 

 

 

 

 

R8R2M01

 

 

 

 

 

 

 

 

 

 

 

3

3

3

3

PEC02SAAN

JP2,JP4,JP5

Header, 2 pin, 100mil spacing,

0.100 inch x 2

PEC02SAAN

Sullins

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8 bq2461x/bq2463x EVM (HPA422)Multi-CellSynchronousSwitch-ModeCharger

 

SLUU396A –January2010–RevisedJuly 2010

Copyright © 2010, Texas Instruments Incorporated

www.ti.com Bill of Materials, Board Layout and Schematics

Table 4. Bill of Materials (continued)

bq24610-001

bq24617-002

Bq24630-003

bq24616-004

Value

RefDes

Description

Size

Part Number

Mfr

 

 

 

 

 

 

 

 

 

 

2

2

2

2

PEC03SAAN

JP1,JP3

Header, 3 pin, 100mil spacing,

0.100 inch x 3

PEC03SAAN

Sullins

 

 

 

 

 

 

 

 

 

 

4

4

4

4

0

R10,R19,R26,

Resistor, Chip, 1/16W, 1%

402

Std

Std

 

 

 

 

 

R13

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

1

1

1

10

R22

Resistor, Chip, 1/4W, 1%

1206

Std

Std

 

 

 

 

 

 

 

 

 

 

1

1

0

0

9.31k

R4

Resistor, Chip, 1/16W, 1%

402

Std

Std

 

 

 

 

 

 

 

 

 

 

0

0

1

1

2.2k

R4

Resistor, Chip, 1/16W, 1%

402

Std

Std

 

 

 

 

 

 

 

 

 

 

3

3

3

3

1k

R21,R24,R27

Resistor, Chip, 1/16W, 1%

402

Std

Std

 

 

 

 

 

 

 

 

 

 

1

1

1

1

100

R8

Resistor, Chip, 1/16W, 1%

402

Std

Std

 

 

 

 

 

 

 

 

 

 

1

1

0

0

430k

R5

Resistor, Chip, 1/16W, 1%

402

Std

Std

 

 

 

 

 

 

 

 

 

 

0

0

1

1

6.8k

R5

Resistor, Chip, 1/16W, 1%

402

Std

Std

 

 

 

 

 

 

 

 

 

 

1

1

1

1

0

R17

Resistor, Chip, 1/16W, 1%

603

Std

Std

 

 

 

 

 

 

 

 

 

 

6

6

6

6

2.21k

R31,R34,R35,

Resistor, Chip, 1/16W, 1%

603

Std

Std

 

 

 

 

 

R36,R39,R40

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

1

1

1

10

R14

Resistor, Chip, 1/16W, 1%

603

Std

Std

 

 

 

 

 

 

 

 

 

 

2

2

2

2

10k

R29,R30

Resistor, Chip, 1/16W, 1%

603

Std

Std

 

 

 

 

 

 

 

 

 

 

6

6

6

6

100k

R3,

Resistor, Chip, 1/16W, 1%

603

Std

Std

 

 

 

 

 

R20,R32,R33,

 

 

 

 

 

 

 

 

 

R37,R38

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

1

1

1

10k

R16

Resistor, Chip, 1/10W, 1%

805

Std

Std

 

 

 

 

 

 

 

 

 

 

1

1

1

1

100k

R15

Resistor, Chip, 1/10W, 1%

805

Std

Std

 

 

 

 

 

 

 

 

 

 

1

1

1

1

22.1k

R12

Resistor, Chip, 1/10W, 1%

805

Std

Std

 

 

 

 

 

 

 

 

 

 

1

1

1

1

32.4k

R7

Resistor, Chip, 1/10W, 1%

805

Std

Std

 

 

 

 

 

 

 

 

 

 

4

4

4

4

100k

R6,R11,R23,R

Resistor, Chip, 1/10W, 1%

805

Std

Std

 

 

 

 

 

28

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

1

1

1

909k

R25

Resistor, Chip, 1/10W, 1%

805

Std

Std

 

 

 

 

 

 

 

 

 

 

2

2

2

2

3.9

R1,R2

Resistor, Chip, 1/8W, 5%

1206

Std

Std

 

 

 

 

 

 

 

 

 

 

2

2

2

2

0.01

R9,R18

Resistor, Chip, 1/2W, 1%

2010

WSL2010R01

Vishay

 

 

 

 

 

 

 

 

00FEA

 

 

 

 

 

 

 

 

 

 

 

1

1

1

1

ED1515

J2

Terminal Block, 3 pin, 6A, 3.5mm

0.41 x 0.25

ED555\3DS

OST

 

 

 

 

 

 

 

inch

 

 

 

 

 

 

 

 

 

 

 

 

2

2

2

2

ED1516

J3,J4

Terminal Block, 4 pin, 6A, 3.5mm

0.55 x 0.25

ED555\4DS

OST

 

 

 

 

 

 

 

inch

 

 

 

 

 

 

 

 

 

 

 

 

1

1

1

1

ED120/2DS

J1

Terminal Block, 2 pin, 15A, 5.1mm

0.40 x 0.35

ED120/2DS

OST

 

 

 

 

 

 

 

inch

 

 

 

 

 

 

 

 

 

 

 

 

1

1

1

1

ED120/4DS

J5

Terminal Block, 4 pin, 15A, 5.1mm

0.80 x 0.35

ED120/4DS

OST

 

 

 

 

 

 

 

inch

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SLUU396A –January2010–RevisedJuly 2010

 

 

 

bq2461x/bq2463x EVM (HPA422) Multi-CellSynchronousSwitch-ModeCharger9

Copyright © 2010, Texas Instruments Incorporated

Bill of Materials, Board Layout and Schematics www.ti.com

Table 4. Bill of Materials (continued)

bq24610-001

bq24617-002

Bq24630-003

bq24616-004

Value

RefDes

Description

Size

Part Number

Mfr

 

 

 

 

 

 

 

 

 

 

1

1

1

1

5001

GND

Test Point, Black, Thru Hole Color

0.100 x 0.100

5001

Keystone

 

 

 

 

 

 

Keyed

inch

 

 

 

 

 

 

 

 

 

 

 

 

14

14

14

14

5002

/ACDRV,/BAT

Test Point, White, Thru Hole Color

0.100 x 0.100

5002

Keystone

 

 

 

 

 

DRV,/PG,

Keyed

inch

 

 

 

 

 

 

 

ACSET,CHGE

 

 

 

 

 

 

 

 

 

N,ISET1,ISET

 

 

 

 

 

 

 

 

 

2, REGN,

 

 

 

 

 

 

 

 

 

STAT1,STAT2

 

 

 

 

 

 

 

 

 

,TS,TTC,

 

 

 

 

 

 

 

 

 

VCC,VREF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

5

5

5

131-4244-00

TP1,TP2,TP8,

Adaptor, 3.5-mmprobe clip ( or

0.200 inch

131-4244-00

Tektronix

 

 

 

 

 

TP9,TP12

131-5031-00)

 

 

 

 

 

 

 

 

 

 

 

 

 

3

3

3

3

2N7002DICT

Q6,Q8,Q9

MOSFET, N-ch,60V, 115mA,

SOT23

2N7002DICT

Vishay-Liteon

 

 

 

 

 

 

1.2Ohms

 

 

 

 

 

 

 

 

 

 

 

 

 

3

3

3

3

SI4401BDY-

Q1,Q2,Q5

MOSFET, PChan, -40V,-18A,

S0-8

SI4401BDY

Vishay-

 

 

 

 

T1-GE

(Note 5)

9.2millohm

 

FDS4141

Siliconxi

 

 

 

 

FDS4141

 

 

 

 

Fairchild

 

 

 

 

 

 

 

 

 

 

2

2

2

2

FDS8447

Q3,Q4

MOSFET, NChan, 40V, 50A, 4.5

S0-8

FDS8447

Vishay-

 

 

 

 

 

 

millohm

 

 

Siliconix

 

 

 

 

 

 

 

 

 

 

2

2

2

2

TP0610K

Q7,Q10

Mosfet, P-Ch,60V, Rds 6 ohms, Id

SOT-23

TP0610K

Vishay-

 

 

 

 

 

 

185 mA

 

 

Siliconix

 

 

 

 

 

 

 

 

 

 

1

1

1

1

 

PCB

4 layer 2oz. PCB

 

HPA422

 

 

 

 

 

 

 

 

 

 

 

5

5

5

5

929950-00

 

Shorting jumpers, 2-pin,100mil

 

929950-00

3M/ESD

 

 

 

 

 

 

spacing

 

 

 

 

 

 

 

 

 

 

 

 

 

4

4

4

4

 

 

STANDOFF M/F HEX 6-32NYL .500"

 

4816

Keystone

 

 

 

 

 

 

 

 

 

 

4

4

4

4

 

 

6-32NYL Hex nuts

 

NY HN 632

Building

 

 

 

 

 

 

 

 

 

Fasteners

 

 

 

 

 

 

 

 

 

 

10 bq2461x/bq2463x EVM (HPA422)Multi-CellSynchronousSwitch-ModeCharger

SLUU396A –January2010–RevisedJuly 2010

Copyright © 2010, Texas Instruments Incorporated