REV. A

ADM1052

–3–

ABSOLUTE MAXIMUM RATINGS

*

°C unless otherwise noted)

SHDN1, SHDN2 to GND . . . . . . . . –0.3 V to (V

SENSE1, SENSE2 to GND . . . . . . . . . . . . –0.3 V to +5.5 V

°C) . . . . . . . 650 mW

8-Lead SOIC . . . . . . . . . . . . (Derate 8.3 mW/

°C above 70°C)

Operating Temperature Range

Commercial (J Version) . . . . . . . . . . . . . . . . . . 0

°C to 70°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 specifica-

tion is not implied. Exposure to absolute maximum rating conditions for extended

periods of time may affect reliability.

THERMAL CHARACTERISTICS

°C/W

ORDERING GUIDE

Temperature

Package

Package

Model

Range

Description

Option

ADM1052JR

0

°C to 70°C

8-Lead SOIC

SO-8

ADM1052

100 F

2

100 F

3.3V

FORCE 1

SENSE 1

3.3V

FORCE 2

SENSE 2

100 F

2

100 F

SHDN1

SHDN2

LEAVE OPEN OR

CONNECT TO

LOGIC SIGNALS

IF SHUTDOWN

REQUIRED

PHD55N03LT

MTD3055VL

1 F

12V

GND

Figure 1. Test Circuit

PIN FUNCTION DESCRIPTIONS

Pin

No.

Mnemonic

Function

1

FORCE 2

Output of Channel 2 control amplifier to

gate of external N-channel MOSFET.

2

SENSE 2

Input from source of external MOSFET to

inverting input of Channel 2 control

amplifier, via output voltage-setting feed-

back resistor network.

3

SHDN2

Digital Input. Active-low shutdown control

with 50

µA internal pull-up. The output

of Channel 2 control amplifier goes to

ground when

SHDN2 is taken low.

4

GND

Device Ground Pin.

5

SHDN1

Digital Input. Active-low shutdown control

with 50

µA internal pull-up. The output

of Channel 1 control amplifier goes to

ground when

SHDN1 is taken low.

6

SENSE 1

Input from source of external MOSFET

to inverting input of Channel 1 control

amplifier, via output voltage-setting

feedback resistor network.

7

FORCE 1

Output of Channel 2 control amplifier to

gate of external N-channel MOSFET.

12 V Supply.

PIN CONFIGURATION

TOP VIEW

(Not to Scale)

8

7

6

5

1

2

3

4

FORCE 2

SENSE 2

SHDN2

GND

FORCE 1

SENSE 1

SHDN1

ADM1052

CAUTION

ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily

accumulate on the human body and test equipment and can discharge without detection. Although

the ADM1052 features proprietary ESD protection circuitry, permanent damage may occur on

devices subjected to high-energy electrostatic discharges. Therefore, proper ESD precautions are

recommended to avoid performance degradation or loss of functionality.

WARNING!

ESD SENSITIVE DEVICE