ADM1072ARQ 查看數據表（PDF） - Analog Devices

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ADM1072ARQ

Dual, USB 2.0 Full/Standby Power Controller with Supply Steering

Analog Devices 

PRELIMINARY TECHNICAL DATA

ADM1072

ABSOLUTE MAXIMUM RATINGS*

(TA = +25°C unless otherwise noted)

MAIN_IN to GND . . . . . . . . . . . . . . . . . . . . . . –0.3V to +6V

ON1,ON1,FLT1, FLT2 to GND . . . . . . . . . . . –0.3V to +6V

OP1,OP2 to GND . . . . . . . . . . . . . . . . +0.3 V to (VIN + 0.3V)

Maximum Switch Current

Full Power Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1A

Standby Power Mode . . . . . . . . . . . . . . . . . . . . . . . . 200mA

Continuous Power Dissipation (TA = +70oC) . . . . . 667mW

QSOP (derate 8.3mW/oC above +70oC)

Operating Temperature Range

Industrial (A Version) . . . . . . . . . . . . . . . –40°C to +85°C

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

Lead Temperature (Soldering, 10 sec) . . . . . . . . . . . +300°C

*This is a stress rating only and functional operation of the device at these or any

other conditions above those indicated in the operation sections of this speci-

fication is not implied. Exposure to absolute maximum rating conditions for

extended periods of time may affect reliability.

THERMAL CHARACTERISTICS

16-Pin QSOP Package:

qJA = 105°C/Watt, qJC = 40°C/Watt

ORDERING GUIDE

Model

Temperature

Range

ADM1072ARQ -40°C to +85°C

Package

Description

16-Pin QSOP

Package

Option

RQ-16

Package

OP1 1

16 OP2

MAIN_IN 2

15 MAIN_IN

MAIN_IN 3

14 MAIN_IN

OP1 4

STBY_IN 5

FLT1 6

ADM 1072

T O P V IE W

(Not to Scale)

13 OP2

12 STBY_IN

11 ON1

FLT2 7

10 ON2

GND 8

9 STBY

Pin Configuration

Pin

2, 3, 14, 15

5, 12

1, 4

13, 16

6

7

8

9

10

11

Mnemonic

MAIN_IN

STBY_IN

OP1

OP2

FLT1

FLT2

GND

STBY

ON2

ON1

PIN FUNCTION DESCRIPTION

Function

Input to MAIN P-channel MOSFET source (both channels). Bypass MAIN_IN with a

22µF capacitor to ground.

Input to Standby P-channel MOSFET source (both channels) and supply to chip

circuitry. Bypass STBY_IN with a 4.7µF capacitor to ground.

Output from channel 1, P-channel MOSFET drains. Bypass OP1 with a 120µF capacitor

to ground.

Output from channel 2, P-channel MOSFET drains. Bypass OP2 with a 120µF capacitor

to ground.

Open-Drain Digital Output. FLT1 goes low when the channel 1 current limit is

exceeded for 10mS or the die temperature exceeds +150oC. During startup, FLT1

remains low for the turn-on time.

Open-Drain Digital Output. FLT2 goes low when the channel 2 current limit is

exceeded for 10mS or the die temperature exceeds +150oC. During startup, FLT2

remains low for the turn-on time.

Ground pin for all chip circuits.

Digital Input. Active high standby mode input. STBY = 0 sets normal operating mode

with 500mA current limit. STBY = 1 sets standby mode with 100mA current limit.

Digital Input. Active-low switch enable for channel 2 (logic 0 turns the switch on).

Digital Input. Active-low switch enable for channel 1 (logic 0 turns the switch on).

Rev. PrE 1/02

–3–

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