Intersil Corporation HIP6004BCV, HIP6004BCB Datasheet

TM

HIP6004B

HIP6004B

Data Sheet February 1999 FN 4 567.2

Buck and Synchronous-Rectifier (PWM)
Controller and Output Voltage Monitor

The HIP6004B provides complete control and protection for
a DC-DC converter op timize d for high-p erformance
microprocessor applicatio ns. It is desi gned to dri ve two
N-Channel MOSF ETs i n a synchron ous- recti fied bu ck
topology. The HIP6004B integrates all of the control, output
adjustment, monitorin g and protect ion f uncti ons into a
single package.

The output voltage of the conver ter is eas ily adjusted and
precisely regulated. The H IP6004B in cludes a f ully TTL­compatible 5-input digital -to-a nalog converter (DAC) that
adjusts the output voltage from 1. 3V

0.05V and from 2.1V

to 3.5VDC in 0.1V increments

DC

to 2.05VDC in

DC

steps. The precision reference and voltage-mode regulator
hold the selected output voltage to w ithin ±1% over
temperature and line voltag e var iation s.

The HIP6004B provides si mp le, single f eedba ck loop,
voltage-mode cont rol with fast transie nt res ponse. I t
includes a 200kHz free-running triangle-wave oscillator that
is adjustable from below 50 kHz to over 1M Hz. The err or
amplifier features a 15MHz gain-bandwidth product and
6V/µs slew rate which enables high converter bandwidth for
fast transient performance . The re sulting P WM duty rat io
ranges from 0% to 100%.

The HIP6004B mon itors the out pu t voltage with a w indow
comparator that tracks the DAC output and issues a Power
Good signal when the outp ut is withi n ±10%. The
HIP6004B protec ts agai nst over -cur rent and over vo ltage
conditions by inhibiting PWM operat ion. Add itional bui lt-in
overvoltage protection triggers an external SCR to crowbar
the input supply. The HIP 6004B monitor s the cur rent by
using the r

of the upper MOSFET w hi ch elimin ates

DS(ON)

the need for a current sensing resistor .

Ordering Information

TEMP.

PART NUMBER

HIP6004BCB 0 to 70 20 Ld SOIC M20.3
HIP60 04 BC V 0 to 70 20 Ld TSS OP M20.17 3

NOTE: When ordering, use the entire part number. Add the suffix T
to obtain the TSSOP variant in tape and reel, e.g., HIP6004BCV-T.

RANGE (oC) PACKAGE

PKG.

NO.

Features

• Drives Two N-Channel MOSFETs

• Operates from +5V or +12V Input

• Simple Single-Loop Control Design

- Voltage-Mode PWM Cont rol

• Fast Transient Response

- High-Bandwidth Error Amplifier

- Full 0% to 1 00% D u ty Rat io

• Excellent Output Voltage Regulation

- ±1% Over Line Voltage and Temperature

• TTL-Compatible 5-Bit Digital-to-Analog Output
Voltage S e lect io n

- Wide Range . . . . . . . . . . . . . . . . . . . 1.3V

DC

to 3.5V

- 0.1V Binary Steps . . . . . . . . . . . . . . 2.1VDC to 3.5V

- 0.05V Bina ry S te p s . . . . . . . . . . . . 1.3VDC to 2.05V

• Power-Good Output Voltage M onitor

• Over-Voltage and Over -Current Fault Monitors

- Does Not Require Extra Current Sensing Element,

Uses MOSFET’s r

DS(ON)

• Small Converter Size

- Constant Fr equency Operation

- 200kHz Free-Ru nning Oscillator Programmable from

50kHz to over 1MHz

Applications

• Power Supply for Pentium®, Pentium Pro, Pentium II,
PowerPC™, K6™, 6X86™ and Alpha™ Microprocessors

•

High-Power 5V to 3.xV DC-DC Regulators

•

Low-Voltage Distributed Power Supplies

Pinout

HIP6004B

(SOIC, TSSOP)

TOP VIEW

VSEN

OCSET

SS
VID0
VID1
VID2
VID3
VID4

COMP

FB

1
2
3
4
5
6
7
8
9

10

20
19
18
17
16
15
14
13
12
11

RT
OVP
VCC
LGATE
PGND
BOOT
UGATE
PHASE
PGOOD
GND

DC
DC
DC

74

6X86™ is a trademark of Cyrix Corporation.

Alpha™ is a trademark of Digital Equipment Corporation.

K6™ is a trademark of Advanced Micro Devices, Inc.

Pentium® is a registered trademark of Intel Corporation.

PowerPC™ is a trademark of IBM.

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 321-724-7143

| Intersil (and design) is a trademark of Intersil Americas Inc.

Copyright © Intersil Americas Inc. 2002. All Rights Reserved

Typical Application

HIP6004B

Block Diagram

VSEN

OCSET

VID0
VID1
VID2
VID3
VID4

FB

COMP

RT

PGOOD

SS

OVP

RT

VID0
VID1
VID2
VID3
VID4

FB

REFERENCE

TTL D/A

CONVERTER

(DAC)

OSC

D/A

+12V

VCC

MONITOR AND

PROTECTION

HIP6004B

-

+

+

-

COMP

110%

90%

115%

200µA

DACOUT

VSEN

+

-

ERROR

AMP

OCSET

EN

BOOT

UGATE
PHASE

LGATE
PGND

GND

+

-

+

-

OVER-

VOLTAGE

+

-

+

-

OVER-

CURRENT

COMPARATOR

OSCILLATOR

4V

PWM

+

-

VIN = +5V OR +12V

VCC

POWER-ON

RESET (POR)

SOFT-

START

INHIBIT

PWM

GATE

CONTROL

LOGIC

+V

OUT

10µA

PGOOD

OVP

SS

BOOT
UGATE

PHASE

LGATE
PGND
GND

HIP6004B

Absolute Maximum Ratings Thermal Information

Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+15V

Boot Voltage, V

Input, Output or I/O Voltage. . . . . . . . . . . .GND -0.3V to V

ESD Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Class 2

BOOT

- V

. . . . . . . . . . . . . . . . . . . . . . . .+15V

PHASE

CC

+0.3V

Operating C o ndi t io ns

Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . +12V ±10%

Ambient Temperature Range. . . . . . . . . . . . . . . . . . . . . 0

CAUTION: Stress es abov e thos e lis ted in “ A bsolute Max imum R a tings” ma y cause per manen t dam age to th e de vice. This is a s tress on ly rating and ope rat ion of th e
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.

NOTE:

is measured with the compon ent mounted on an evaluation PC board in free air.

1. θ

JA

o

C to 70oC

Electrical Specifications Recommended Op erating Conditions, Unless Otherwise Noted

PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNITS

V

SUPPLY CURRENT

CC

Nominal Supply I

CC

POWER-ON RESET

Rising V
Fallin g V
Rising V

Threshold V

CC

Threshold V

CC

Threshold -1.26- V

OCSET

OSCILLATOR

Free Running Frequency RT = OPEN 185 200 215 kHz
Total Vari ation 6kΩ < RT to GND < 200kΩ -15 - +15 %
Ramp Amplitude ∆V

OSC

REFERENCE AND DAC

DAC (VID0-VID4) Input Low Voltage --0.8V
DAC (VID0-VID4) Input High Voltage 2.0 - - V
DACOUT Voltage Accuracy -1.0 - +1.0 %

ERROR AMPLIFIER

DC Gain -88- dB
Gain- Ban dwidth Pr od uc t G B W - 15 - M H z
Slew Rate SR COMP = 10pF - 6 - V/µs

GATE DRIVERS

Upper Gate Source I
Upper Gate Sink R
Lower Gat e Source I
Lower Gate Sink R

UGATE

UGATEILGATE

LGATE

LGATEILGATE

PROTECTION

Over-Voltage Trip (V
OCSET Current Source I
OVP Sourcing Current I
Soft Start Current I

/DACOUT) -115120 %

SEN

OCSET

OVP

SS

UGATE and LGATE Open - 5 - mA

OCSET
OCSET

RT = Open - 1.9 - V

V

- V

BOOT

= 0.3A - 5.5 10 Ω

VCC = 12V, V

= 0.3A - 3.5 6.5 Ω

V

OCSET

V

= 5.5V, V

SEN

Thermal Resistance (Typical, Note 1)

SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110

SOIC Package (with 3in

2

of Copper). . . . . . . . . . . . 86

θ

JA

(oC/W)

TSSOP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . 140

Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . 150

Maximum Storage Temperature Range . . . . . . . . . -65

o

C to 150oC

Maximum Lead Temperature (Soldering 10s). . . . . . . . . . . . 300

(Lead Tip s Onl y)

= 4.5V - - 10.4 V
= 4.5V 8.2 - - V

PHASE

= 4.5V

= 12V, V

= 6V 300 450 - mA

LGATE

DC

= 0V 60 - - mA

OVP

= 6V 350 500 - mA

UGATE

170 200 230 µA

-10- µA

P-P

o

C

o

C

HIP6004B

Electrical Specifications Recommended Op erating Conditions, Unless Otherwise Noted (Continued)

PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNITS

POWER GOOD

Upper Threshold (V
Lower Threshold (V
Hysteresis (V

SEN

PGOOD Voltage Low V

/DACOUT) V

SEN

/DACOUT) V

SEN

Rising 106 - 111 %

SEN

Falling 89 - 94 %

SEN

/ D AC OU T) Upper and Lower T h res hold - 2 - %

PGOODIPGOOD

= -5mA - 0.5 - V

Typical Performance Curves

80

70

C

GATE

= 3300pF

1000

RESISTANCE (kΩ)

100

10

RT PULLUP

TO +12V

RT PULLDOWN TO V

10 100 1000

SWITCHING FREQUENCY (kHz)

SS

60

C

= C

UPPER

50

40

(mA)

CC

I

30

20

10

0

100 200 300 400 500 600 700 800 900 1000

= C

LOWER

SWITCHING FREQUENCY (kHz)

GATE

C

C

GATE

GATE

FIGURE 1. RT RESISTANCE vs FREQUENCY FIGURE 2. BIAS SUPPLY CURRENT vs FREQUENCY

= 1000pF

= 10pF