ACE432 Datasheet, PDF (1/12 Pages) ACE Technology Co., LTD. – Precision adjustable shunt voltage reference

Technology
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 0℃ 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
Symbol Max Unit
Cathode to Anode Voltage ^{(Note 2)}
Continuous Cathode Current
Reference Input Current
Thermal resistance junction to ambient
TO-92
SOP-8
SOT-89-3
SOT-23-3
SOT-23-5
Operating junction temperature
Storage temperature range
Lead temperature (soldering) 10sec
V_KA
8
V
I_KA
150 mA
I_REF
3
mA
θJA
TJ
TSTG
TLEAD
220
150
120
O_C/W
230
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.
VER 1.2 1