MAXIM MAX3353E User Manual

General Description

The MAX3353E I2C-compatible USB On-the-Go (OTG) regulated charge pump with switchable pullup/pulldown resistors allows peripherals and mobile devices such as PDAs, cellular phones, and digital cameras to be interconnected without a host PC.

The MAX3353E enables a system with an integrated USB dual-role transceiver to function as a USB OTG dual-role device. The charge pump in the MAX3353E supplies V

BUS

power and signaling that is required by the transceiver as defined in On-the-Go Supplement: USB 2.0, Revision 1.0. The MAX3353E provides the switchable pullup and pulldown resistors on D+ and Drequired for a dual-role device.

The MAX3353E integrates a regulated charge pump, switchable pullup/pulldown resistors, and an I2C-compatible 2-wire serial interface. The device provides a detector to monitor ID status and operates with logic supply voltages (V

) between +1.65V and VCCand

charge-pump supply voltages (V

) from +2.6V to +5.5V. The charge pump supplies an OTG-compatible output on V

BUS

while sourcing 8mA output current.

The MAX3353E enables USB OTG communication between digital logic parts that cannot supply or tolerate the +5V V

BUS

levels that USB OTG requires. By control-

ling and measuring V

BUS

using internal comparators, this device supports USB OTG session request protocol (SRP) and host negotiation protocol (HNP).

The MAX3353E has built-in ±15kV ESD protection circuitry to guard V

BUS

, ID_IN, D+, and D-. The MAX3353E is available in a 5 x 4 chip-scale package (UCSP™) and 16-pin TSSOP package.

Applications

Mobile Phones

PDAs

Digital Cameras

MP3 Players

Photo Printers

Features

♦ Ideal for Enabling USB Dual-Role Components for

USB OTG Protocol

♦ Charge Pump for V

BUS

Signaling and Operation

Down to +2.6V

♦ Level Translators Allow Low-Voltage System

Interface

♦ Internal V

BUS

Comparators and ID Detector

♦ Internal Switchable Pullup and Pulldown

Resistors for Host/Peripheral Functionality

♦ I

C-Compatible Bus Interface with Command and

Status Registers

♦ Interrupt Features

♦ ±15kV ESD Protection on ID_IN, V

BUS

, D+, and D-

♦ Supports SRP and HNP

♦ Available in 5 x 4 UCSP and 16-Pin TSSOP

MAX3353E

USB On-the-Go Charge Pump with Switchable

Pullup/Pulldown Resistors

________________________________________________________________ Maxim Integrated Products 1

MAX3353E

PULLUP/DOWN

RESISTORS

CURRENT

GENERATOR

CHARGE

PUMP

C+ C-

BUS

COMPARATORS

C INTERFACE AND CONTROL LOGIC

ID DETECTOR

ID_OUT

SCL

SDA

ADD

INT

BUS

ID_IN

D+

D-

TRM

SE0

DRIVER

200kΩ

±15kV

ESD

PROTECTION

110kΩ

Functional Diagram

Ordering Information

19-2845; Rev 1; 10/03

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

UCSP is a trademark of Maxim Integrated Products, Inc.

PART

TEMP RANGE

PIN-

PKG

CODE

MAX3353EEUE

—

MAX3353EEBP-T

B20-4

Pin Configurations appear at end of data sheet.

Typical Applications Circuit appears at end of data sheet.

PACKAGE

-40°C to +85°C

16 TSSOP

5 x 4 UCSP

MAX3353E

USB On-the-Go Charge Pump with Switchable Pullup/Pulldown Resistors

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VCC= +2.6V to +5.5V, VL= +1.65V to VCC, V

TRM

= +3V to +3.6V, C

FLYING

= 0.1µF, VCCdecoupled with 1µF capacitor to ground;

TRM

and VLdecoupled with 0.1µF capacitor to ground; C

VBUS

= 1µF (min), TA= T

MIN

to T

MAX

, unless otherwise noted. Typical

values are at V

= +4V, VL= +1.8V, V

TRM

= +3.3V, and TA= +25°C.) (Notes 3, 4)

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

(All voltages referenced to GND.) V

CC,VL

, V

TRM

..........................................................-0.3V to +6V

D+, D-, ID_IN (Note 1)..............................................-0.3V to +6V

BUS

(Notes 1, 2) .....................................................-0.3V to +6V

C+..................................................................(V

- 0.3V) to +6V

C-................................................................-0.3V to (V

+ 0.3V)

INT, ID_OUT..................................................-0.3V to (V

+ 0.3V)

SDA, SCL, ADD .......................................................-0.3V to +6V

BUS

Output Short Circuit to Ground ....................... Continuous

Output Current (all other pins) .........................................±15mA

Continuous Power Dissipation (T

= +70°C)

16-Pin TSSOP (derate 9.4mW/°C above +70°C) .........755mW

5 x 4 UCSP (derate 7.8mW/°C above +70°C) .............625mW

Operating Temperature Range ...........................-40°C to +85°C

Storage Temperature Range .............................-65°C to +150°C

Junction Temperature......................................................+150°C

Lead Temperature (soldering 10s) .................................+300°C

Bump Temperature (soldering)

Infrared (15s) ...............................................................+200°C

Vapor Phase (20s) .......................................................+215°C

Note 1: 15kV ESD protected. Note 2: V

BUS

can be backdriven to +6V.

)

Supply Voltage V

Logic Supply Voltage V

Supply Voltage V

TRM

VCC Operating Supply Current I

VCC Shutdown Supply Current I

Supply Current I

TRM

VL Input Current I

ID_OUT, INT Output Voltage High V

SDA, INT, ID_OUT Output Voltage Low

SDA, SCL, ADD Input Voltage High

SDA, SCL, ADD Input Voltage Low

PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS

TRM

CC(SHDN

VTRM

Inp ut/Thr ee- S tate O utp ut Leakag e C ur r ent ( S D A, S C L, INT)

ID_IN floating, V V

BUS_CHG2

BUS_CHG1

= 0, V

BUS_DRV

= 0,

BDISC_ACONN = 0

BUS_DRV

BUS_CHG2

= 1, V

= 0, I

BUS_CHG1

= 8mA

VBUS

= 0,

No activity on I2C serial bus 0.4 2 µA

DP_PULLDWN = 1, DP_PULLUP = 0, DM_PULLDWN = 1, DM_PULLUP = 0 no activity on USB serial bus

No activity on I2C serial bus 1 µA

INT configured to push/pull; source current

= +1mA

LOAD

Sink current I

= -1mA 0.4 V

LOAD

INT configured to open drain ±1 µA

2.6 5.5 V

1.65 V

3.0 3.6 V

73 100 µA

18 25 mA

1µA

- 0.4 V

0.67 x V

0.4 V

MAX3353E

USB On-the-Go Charge Pump with Switchable

Pullup/Pulldown Resistors

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS (continued)

(VCC= +2.6V to +5.5V, VL= +1.65V to VCC, V

TRM

= +3V to +3.6V, C

FLYING

= 0.1µF, VCCdecoupled with 1µF capacitor to ground;

TRM

and VLdecoupled with 0.1µF capacitor to ground; C

VBUS

= 1µF (min), TA= T

MIN

to T

MAX

, unless otherwise noted. Typical

values are at V

= +4V, VL= +1.8V, V

TRM

= +3.3V, and TA= +25°C.) (Notes 3, 4)

PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS

ADD Pulldown Resistor 110 kΩ

ESD PROTECTION (V

, ID_IN, D+, D-)

BUS

ESD Protection

/ CHARGE-PUMP SPECIFICATIONS

B U S

BUS_DRV

BUS

= 1, V

BUS_DISCHG

Output Voltage V

Output Current I

= 0, V

BUS_CHG1

BUSIVBUS

VBUS

Short-Circuit Current V

Output Ripple I

Efficiency VCC = 2.6V, I

Switching Frequency f 600 kHz

Voltage in Three-State

BUS

Mode

Pulldown Resistance V

BUS

Input Impedance V

BUS

AND CURRENT SOURCE SPECIFICATIONS (V

BUS

Output Voltage V

BUS

Current Source (Note 5) 450 600 850 µA

BUS

Current Gate Time V

BUS

COMPARATOR SPECIFICATIONS

BUS_VALID

Comparator

Threshold

BUS_VALID

Comparator

Hysteresis

SESSION_VALID Comparator Threshold

SESSION_VALID Comparator Hysteresis

B_SESSION_END Comparator Threshold

B_SESSION_END Comparator Hysteresis

SINGLE-ENDED RECEIVERS AND SE0 SPECIFICATIONS (D+, D-)

Low-Level Input Threshold 0.8 V

High-Level Input Threshold 2.0 V

Human Body Model ±15

IEC1000-4-2 Air-Gap Discharge ±11

IEC1000-4-2 Contact Discharge ±6

= 0, V

BUS_CHG2

= 0 to 8mA, C

= 0, unless otherwise noted.)

= 1µF 4.63 5.25 V

VBUS

8mA

shorted to GND 140 250 mA

BUS

= 8mA, C

VBUS

BUS_DRV

LOAD

BUS_CHG1

= 0 0.2 V

= 0, V

= 0 40 100 kΩ

BUS_CHG1

= 15µF 2.1

= 95µF 1.9

= 1, V

= 1µF 100 mV

VBUS

= 8mA 80 %

VBUS

BUS_DISCHG

= 1, V

BUS_CHG2

= 1 3.2 5.1 6.5 kΩ

BUS_CHG2

= 0, V

BUS_DRV

= 0, V

BUS_DISCHG

= 0 (Note 5) 56 105 155 ms

4.40 4.55 4.63 V

20 mV

1.0 1.4 1.8 V

20 mV

0.4 0.5 0.6 V

35 mV

= 0)

MAX3353E

USB On-the-Go Charge Pump with Switchable Pullup/Pulldown Resistors

4 _______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS (continued)

(VCC= +2.6V to +5.5V, VL= +1.65V to VCC, V

TRM

= +3V to +3.6V, C

FLYING

= 0.1µF, VCCdecoupled with 1µF capacitor to ground;

TRM

and VLdecoupled with 0.1µF capacitor to ground; C

VBUS

= 1µF (min), TA= T

MIN

to T

MAX

, unless otherwise noted. Typical

values are at V

= +4V, VL= +1.8V, V

TRM

= +3.3V, and TA= +25°C.) (Notes 3, 4)

TIMING CHARACTERISTICS

(VCC= +2.6V to +5.5V, VL = +1.65V to VCC, V

TRM

= +3V to +3.6V, C

FLYING

= 0.1µF, VCCdecoupled with 1µF capacitor to ground.

TRM

and VLdecoupled with 0.1µF capacitor to ground. C

VBUS

= 1µF (min), TA= T

MIN

to T

MAX

, unless otherwise noted. Typical val-

ues are at T

= +25°C, VCC= +4V, VL = +1.8V, V

TRM

= +3.3V.) (Notes 3, 4)

Hysteresis Voltage V

Output Voltage Low (D+ and D- in SE0 state)

PULLUP/PULLDOWN RESISTOR SPECIFICATIONS (D+, D-, ID_IN)

Pulldown Resistor on D+

Pulldown Resistor on D-

Pullup Resistor on D+

Pullup Resistor on D-

D- Leakage Current

D+ Leakage Current

Input Impedance on D+/D-

ID_IN Pullup Resistor 140 200 270 kΩ

ID_IN Input Voltage Low 0.33 x V

ID_IN Input Voltage High 0.67 x V

PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS

HYST

= -2.4mA 0.3 V

SINK

D P _P U LLD WN = 1, D P _P U LLU P = 0, BD IS C _AC ON N = 0

D M _P U LLD WN = 1, D M _P U LLU P = 0, BD IS C _AC ON N = 0

D P _P U LLD WN = 0, D P _P U LLU P = 1, BD IS C _AC ON N = 0

D M _P U LLD WN = 0, D M _P U LLU P = 1, D P _P U LLU P = 0, BDIS C _AC ONN = 0

D M _P U LLD WN = 0, D M _P U LLU P = 0, BD IS C _AC ON N = 0

D P _P U LLD WN = 0, D P _P U LLU P = 0, BD IS C _AC ON N = 0

D P _P U LLU P = 0, D P _PU LLDWN = 0, D M _P U LLU P = 0, D M _PU LLDWN = 0, BD IS C _AC ON N = 0

0.2 V

14.25 15.75 kΩ

1.425 1.575 kΩ

300 kΩ

±1µA

Time to Assert D+ Pullup

Time to Assert SE0

Interrupt Propagation Delay (Note 6) 1 µs

BUS

INT Out Rise Time

PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS

Rise Time

BDISC_ACONN = 1, ID_IN = GND (A Device)

BDISC_ACONN = 1, ID_IN = floating (B Device)

From 0 to 4.4V; C V

INT out push/pull configured, C

BUS_DRV

LOAD

= 1

= 50pF

= 1µF; I

LOAD

VBUS

= 8mA;

1ms

0.025 0.061 1 ms

100 ms

20 ns

MAX3353E

USB On-the-Go Charge Pump with Switchable

Pullup/Pulldown Resistors

_______________________________________________________________________________________ 5

TIMING CHARACTERISTICS (continued)

(VCC= +2.6V to +5.5V, VL = +1.65V to VCC, V

TRM

= +3V to +3.6V, C

FLYING

= 0.1µF, VCCdecoupled with 1µF capacitor to ground.

TRM

and VLdecoupled with 0.1µF capacitor to ground. C

VBUS

= 1µF (min), TA= T

MIN

to T

MAX

, unless otherwise noted. Typical val-

ues are at T

= +25°C, VCC= +4V, VL = +1.8V, V

TRM

= +3.3V.) (Notes 3, 4)

I2C/SMBUS-COMPATIBLE TIMING SPECIFICATIONS

(VCC= +2.6V to +5.5V, VL = +1.65V to VCC, V

TRM

= +3V to +3.6V, C

FLYING

= 0.1µF, VCCdecoupled with 1µF capacitor to ground.

TRM

and VLdecoupled with 0.1µF capacitor to ground. C

VBUS

= 1µF (min). TA= T

MIN

to T

MAX

, unless otherwise noted. Typical val-

ues are at V

= +4V, VL = +1.8V, V

TRM

= +3.3V, and TA= +25°C.) (Notes 3, 4)

Note 3: All currents into the device are negative; currents out of the device are positive. All voltages are referenced to device

ground unless otherwise specified.

Note 4: Parameters are 100% production tested at +25°C, limits over temperature are guaranteed by design. Note 5: The V

BUS

current source and current gate time vary together with process and temperature such that the resulting V

BUS

pulse is guaranteed to drive a <13µF load to a voltage >2.0V, and to drive a >96µF load to a volatge <2.2V. See the SRP

BUS

Pulsing section for an explanation of this self-timed pulse.

Note 6: Guaranteed by design, not production tested. Note 7: A master device must provide a hold time of at least 300ns for the SDA signal to bridge the undefined region of SCL’s falling

edge.

Note 8: C

is total capacitance of one bus line in pF. Tested with CB= 400pF.

Note 9: Input filters on SDA, SCL, and ADD suppress noise spikes less than 50ns.

PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS

INT Out Fall Time C

ID_OUT Rise Time C

ID_OUT Fall Time C

Time to Exit Shutdown 500 µs

Time to Enter Shutdown 1000 µs

= 50pF 20 ns

LOAD

= 50pF 30 ns

LOAD

= 50pF 10 ns

LOAD

PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS

Serial Clock Frequency f

Bus Free Time Between Stop and Start Conditions

Start Condition Hold Time t

Stop Condition Setup Time t

Clock Low Period t

Clock High Period t

Data Setup Time t

Data Hold Time t

Maximum Receive SCL/SDA Rise Time

Minimum Receive SCL/SDA Rise Time

Maximum Receive SCL/SDA Fall Time

Minimum Receive SCL/SDA Fall Time

Transmit SDA Fall Time (Note 4)

Pulse Width of Suppressed Spike t

SCL

BUF

HD:STA

SU:STO

LOW

HIGH

SU:DAT

HD:DAT

DC 400 kHz

1.3 µs

0.6 µs

1.3 µs

0.6 µs

100 ns

(Note 7) 0 0.9 µs

(Note 8) 300 ns

(Note 8) 20 + 0.1C

(Note 8) 300 ns

(Note 8) 20 + 0.1C

CB = 400pF, I

CB = 50pF, I

= 3mA, VL ≥ 2.5V 20 + 0.1C

SDA

= 3mA, VL < 2.5 20 + 0.1C

SDA

250

(Note 9) 50 ns

MAX3353E

USB On-the-Go Charge Pump with Switchable Pullup/Pulldown Resistors

6 _______________________________________________________________________________________

Typical Operating Characteristics

(VCC= +3V, VL= +2.5V, C

FLYING

= 0.1µF, C

VBUS

= 1µF (ESR

CVBUS

= 0.1Ω), TA= +25°C.)

100

120

050

INPUT CURRENT

vs. OUTPUT CURRENT

MAX3353 toc01

OUTPUT CURRENT (mA)

INPUT CURRENT (mA)

2010 30 40

VCC = 2.6V V

= 3.3V

= 4.2V

4.00

4.50

4.25

4.75

5.00

5.25

050

BUS

OUTPUT VOLTAGE

vs. V

BUS

OUTPUT CURRENT

MAX3353 toc02

OUTPUT CURRENT (mA)

BUS

OUTPUT VOLTAGE (V)

2010 30 40

VCC = 2.6V

VCC = 4.2V V

= 3.3V

4.70

4.80

4.75

4.85

4.90

2.5

BUS

OUTPUT VOLTAGE

vs. INPUT VOLTAGE

MAX3353 toc03

INPUT VOLTAGE (V)

BUS

OUTPUT VOLTAGE (V)

4.0

3.5

3.0

5.0

4.5

5.5

VBUS

= 8mA

VBUS

= 0

MAX3353 toc04

200μs/div

5mA/div

SCL 5V/div

TIME TO ENTER SHUTDOWN

MAX3353 toc05

100μs/div

10mA/div

SCL 5V/div

TIME TO EXIT SHUTDOWN

MAX3353 toc06

40ms/div

BUS

1V/div

BUS

1V/div

CL = 10μF

CL = 96μF

BUS

WITH CAPACITIVE LOAD

65.0

67.0

66.5

66.0

65.5

67.5

68.0

-40 85

BUS

INPUT IMPEDANCE

vs. TEMPERATURE

MAX3353 toc07

TEMPERATURE (°C)

BUS

INPUT IMPEDANCE (kΩ)

10-15

-40 85

SUPPLY CURRENT vs. TEMPERATURE

MAX3353 toc08

TEMPERATURE (°C)

SUPPLY CURRENT (mA)

10-15

VBUS

= 8mA

VCC = 2.6V

VCC = 3.3V

VCC = 4.2V

Detailed Description

The MAX3353E integrates a regulated charge pump, switchable pullup/pulldown resistors, and an I2Ccompatible 2-wire serial interface. The internal level shifter allows the device to operate with logic supply voltages (VL) between +1.65V and VCC. The MAX3353E’s OTG-compliant charge pump operates with input supply voltages (VCC) from +2.6V to +5.5V and supplies an OTG-compatible output on V

BUS

while sourcing 8mA

output current.

The MAX3353E level-detector comparators monitor important V

BUS

voltages needed to support SRP and HNP and provides an interrupt output signal for OTG events that require action. The V

BUS

power-control block performs the various switching functions required by an OTG dual-role device and is programmable by system logic.

For OTG operation, D+ and D- are connected to switchable pulldown resistors (host) and switchable pullup resistors (peripheral) controlled by internal registers.

Charge Pump

The MAX3353E’s OTG-compliant charge-pump operates with input supply voltages (VCC) from +2.6V to +5.5V and supplies an OTG-compatible output on V

BUS

with the capability of sourcing 8mA (min) output current. When V

BUS

is not providing power, an input impedance of no more than 100kΩ and no less than 40kΩ to GND is present on V

BUS

. When V

BUS

provides power, the rise

time on V

BUS

from 0 to 4.4V is no longer than 100ms when driving a constant current load of 8mA and an external load capacitance of 13µF.

During a continuous short circuit on V

BUS

, the chargepump output is current limited to 140mA (typ). Thermalshutdown circuitry turns off the charge pump if the die temperature exceeds +150°C and restarts when the die cools to 140°C.

Level Shifters

Internal level shifters allow the system-side interface to run at logic supply voltages as low as 1.65V. Interface logic signals are referenced to the voltage applied to VL.

MAX3353E

USB On-the-Go Charge Pump with Switchable

Pullup/Pulldown Resistors

_______________________________________________________________________________________ 7

Pin Description

TSSOP UCSP

1C5VCCPower-Supply Input. VCC input range is +2.6V to +5.5V. Bypass VCC to GND with a 1µF capacitor.

2D5V

3 D4 SDA Serial Data Input/Output. I2C bus serial data input/open-drain output can be driven above VL.

4 C3 ADD

5 D3 SCL Serial Clock Input. I2C bus serial clock input. Can be driven above VL.

6D2INT

7 D1 ID_OUT Device ID Output. Output of ID_IN level translated to VL.

8C1V

9 B1 D- USB D- (±15kV ESD Protected)

10 A1 D+ USB D+ (±15kV ESD Protected)

11 A2 ID_IN

12 — N.C. No Connection. Not internally connected.

13 A3 GND Ground

14 A4 C- Charge-Pump Capacitor Negative Connection

15 A5 C+ Charge-Pump Capacitor Positive Connection

16 B5 V

NAME FUNCTION

Logic Supply. VL sets the logic output high voltage and logic input high threshold for SDA, SCL,

INT, and ID_OUT. V

Address Select Input. Address selection for the I 110kΩ pulldown resistor (see the 2-Wire I

Interrupt Output. INT is an active-low output and can be set either open-drain or push/pull output through control register 1 (default = open drain).

Termination Supply Input. Connect +3V to +3.6V supply voltage for internal USB pullup resistors.

TRM

Bypass V

Device ID Input. Internally pulled up to V can be read through the I

OTG Bus Supply. Provides power to the bus. V

BUS

GND with a 1µF capacitor.

TRM

can range from +1.65V to VCC. Bypass VL to GND with a 0.1µF capacitor.

C-compatible interface. ADD has an internal

C Compatible Serial Interface section for details).

to GND with a 0.1µF capacitor.

. ID_IN logic state is VL level translated to ID_OUT and

C interface (±15kV ESD protected).

can be back-driven to +6V. Bypass V

BUS

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