adm1051a Analog Devices, Inc., adm1051a Datasheet - Page 3

• Manufacturer Part Number: adm1051a
• Description: Precision Dual Voltage Regulator Controllers
• Manufacturer: Analog Devices, Inc.

ABSOLUTE MAXIMUM RATINGS
(T
V
SHDN1, SHDN2 to GND . . . . . . . . –0.3 V to (V
SENSE 1, SENSE 2 to GND . . . . . . . . . . . –0.3 V to +5.5 V
FORCE 1, FORCE 2 . . . . . . . Short-Circuit to GND or V
Continuous Power Dissipation (T
Operating Temperature Range
Storage Temperature Range . . . . . . . . . . . –65°C to +150°C
Lead Temperature (Soldering, 10 sec) . . . . . . . . . . . . 300°C
THERMAL CHARACTERISTICS
8-Lead Small Outline Package:
Model
ADM1051JR
ADM1051AJR
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 ADM1051/ADM1051A 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.
This is a stress rating only; functional operation of the device at these or any other
conditions above those indicated in the operation sections of this specification is
not implied. Exposure to absolute maximum rating conditions for extended
periods of time may affect reliability.
LEAVE OPEN OR
LOGIC SIGNALS
CC
A
8-Lead SOIC (Derate 8.3 mW/°C Above 70°C)
Commercial (J Version) . . . . . . . . . . . . . . . . . . 0°C to 70°C
θ
IF SHUTDOWN
CONNECT TO
= 25°C unless otherwise noted)
JA
to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 V
REQUIRED
= 150°C/W
SHDN1
SHDN2
Temperature
Range
0°C to 70°C
0°C to 70°C
ORDERING GUIDE
ADM1051A
ADM1051/
V
CC
12V
1 F
A
FORCE 1
SENSE 1
FORCE 2
SENSE 2
= 70°C) . . . . . . . 650 mW
Package
Description
8-Lead SOIC
8-Lead SOIC
PHD55N03LT
MTD3055VL
3.3V
3.3V
V
V
IN
IN
CC
100 F
100 F
2 100 F
2 100 F
+ 0.3 V)
Package
Option
R-8
R-8
V
V
OUT2
OUT1
CC
Pin
No.
1
2
3
4
5
6
7
8
Mnemonic
FORCE 2
SENSE 2
SHDN2
GND
SHDN1
SENSE 1
FORCE 1
V
CC
PIN FUNCTION DESCRIPTIONS
FORCE 2
SENSE 2
SHDN2
PIN CONFIGURATION
GND
Function
Output of Channel 2 control amplifier
to gate of external N-channel MOSFET.
Input from source of external MOSFET
to inverting input of Channel 2 control
amplifier, via output voltage-setting
feedback resistor network.
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.
Device Ground Pin.
Digital Input. Active-low shutdown con-
trol with 50 µA internal pull-up. See text for
more details of SHDN1 functionality.
Input from source of external MOSFET to
inverting input of Channel 1 control ampli-
fier, via output voltage-setting feedback
resistor network.
Output of Channel 1 control amplifier to
gate of external N-channel MOSFET.
12 V Supply.
1
2
3
4
ADM1051/ADM1051A
(Not to Scale)
ADM1051A
ADM1051/
TOP VIEW
WARNING!
8
7
6
5
V
FORCE 1
SENSE 1
SHDN1
CC
ESD SENSITIVE DEVICE