a703eft ADD Microtech Inc., a703eft Datasheet - Page 2

• Manufacturer Part Number: a703eft
• Description: 2 Channels 150ma High Voltage Adjustable Current Regulator
• Manufacturer: ADD Microtech Inc.

Note: The thermal pad is suggested connect to GND on PCB. And thermal conductivity will be improved, if a copper foil on PCB is soldered with
thermal pad.
Copyright © 2009 ADDtek Corp.
Supply Voltage
Output Sink Current
Operating free-air temperature range
Note: Exceeding these ratings could cause damage to the device. All voltages are with respect to Ground.
Exposed Pad
Supply Voltage, V
Output Current, I
Sustaining Voltage, V
Maximum Operating Junction Temperature, T
Operating Temperature, T
Storage Temperature Range
Lead Temperature (Soldering, 10 seconds)
Pin Number
1, 4
2, 3
Currents are positive into, negative out of the specified terminal.
5
6
7
8
OUT1, OUT2
OUTn
Pin Name
DD
Heat Pad
(PGND)
Parameter
AGND
PGND
VDD
I
EN
DS
SET
opr
RECOMMENDED OPERATING CONDITIONS
Constant Current Output pins. Sink current is decided by the current on R
connected to I
Power Ground pin for current sink.
Enable Control pin. High enables the chip.
Power Supply pin.
Analog Ground pin for control logic. Must be connected to PGND on PCB.
Output current set input
set the LED bias current following I
Don’t leave this pin open as shutdown control.
Heat pad. Connect to power ground. Must be soldered to PGND on PCB.
ABSOLUTE MAXIMUM RATINGS
J
PIN DESCRIPTION
SET
. I
OUTn
Symbol
V
I
T
= 180 × I
OUT
.
DD
A
Connect a resistor between I
2
SET
Pin Function
SET
.
Min
-20
6
= 1.2V/R
(Note)
SET
Typ
.
SET
pin and AGND pin to
DD080_ C -- JULY 2009
6V to 50V
180mA
-0.4V to 75V
125°C
-40°C to 85°C
-55°C to 150°C
260°C
Max
+85
150
50
A703
Unit
mA
°C
V
SET