a709wft-40 ADD Microtech Inc., a709wft-40 Datasheet - Page 2

• Manufacturer Part Number: a709wft-40
• Description: Advanced Current Regulator
• Manufacturer: ADD Microtech Inc.

Copyright © 2008 ADDtek Corp.
Note:
Note :
Input Voltage, V
Output Voltage, V
Maximum Junction Temperature, T
Storage Temperature Range
Lead Temperature (soldering, 10 seconds)
Exceeding these ratings could cause damage to the device. All voltages are with respect to Ground.
Currents are positive into, negative out of the specified terminal.
Package
Junction Temperature Calculation: T
P
The θ
All of the above assume no ambient airflow.
D
: Power Dissipation, T
W
JA
numbers are guidelines for the thermal performance of the device/PC-board system.
(°C / W )
DD
OUT
220
θ
JA
A
: Ambient temperature, θ
Derating factor ( mW/°C )
A709
J
= T
ABSOLUTE MAXIMUM RATINGS
Reference
Band-gap
T
J
A
A
≧25
+ (P
VDD
4.5
POWER DISSIPATION TABLE
D
x θ
O
JA
C
: Thermal Resistance-Junction to Ambient
JA
).
BLOCK DIAGRAM
Reference
Current
Control
Circuit
Power rating (mW)
2
T
A
≦25°C
568
OUT
Power rating (mW)
(Note)
T
GND
A
=70 °C
363
DD090_A -- SEPTEMBER 2008
-0.3V to 13.2V
-0.3V to 17V
150°C
-40°C to 150°C
260°C
Power rating (mW)
T
A
= 85°C
295
A709