ACE432_12 Datasheet, PDF (1/10 Pages) ACE Technology Co., LTD. – Precision adjustable shunt voltage reference

ACE432
Precision adjustable shunt voltage reference
Description
The ACE432 is a low voltage three terminal adjustable shunt regulator with a guaranteed thermal
stability over applicable temperature ranges. The output voltage can be set to any value between
V_REF )approximately 1.24V) to 8V with two external resistors.
The device has a typical output impedance of 0.30Ω. Active output circuitry provides a very sharp turn on
characteristic, making this device excellent replacement for Zener diodes in many applications.
The ACE432 is characterized for operation from -40℃ to 105℃, and two package options (SOT-23-3
and TO-92) allow the designer the opportunity to select the proper package for their applications.
Features
 Low voltage operation (1.24V)
 Adjustable output voltage V_D=V_REF to 8V
 Wide operating current range 60μA to 100mA
 Low dynamic output impedance 0.30Ω (Typ.)
 Trimmed bandgap design up ±0.5%
 ESD rating is 2.5KV (Per MIL-STD-883D)
Application
 Linear Regulators
 Adjustable Supplies
 Switching Power Supplies
 Battery Operated Computers
 Instrumentation
 Computer Disk Drives
Absolute Maximum Ratings
Parameter
Cathode to Anode Voltage ^{(Note 2)}
Continuous Cathode Current
Reference Input Current
Thermal resistance junction to ambient
TO-92
SOT-23-3
Operating junction temperature
Storage temperature range
Lead temperature (soldering) 10sec
Symbol
V_KA
I_KA
I_REF
Max
8
150
3
Unit
V
mA
mA
θJA
TJ
TSTG
TLEAD
220 ^OC/W
230
150
O_C
- 45 to 150 ^OC
260
O_C
Note 1: Exceeding these rating could cause damage to the device. All voltages are with respect to Ground. Currents are positive
into, negative out of the specified terminal.
Note 2: Voltage values are with respect to the anode terminal unless otherwise noted.
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