ADJUSTABLE PRECISION SHUNT REGULATORS HM432
DESCRIPTION & FEATURES
The HM432 series Ics are here-terminal adjustable shunt regulators with guaranteed
thermal stability over a full operation range. These Ics freature sharp turn-on characteristics,
low temperature coefficient and low output impedance, which make them ideal substitutes for
Zener diodes in applications such as switching power supply, charger and other adjustable
regulators. The HM432 precision reference is offered in three band gap tolerance: 0.5%,
1.0%, 1.5%
Adjustable output voltage from Vref to 18V
Low dynamic output resistance: 250mΩ typical
Sink current capacity from 60uA to 100 mA
Typical equivalent full range temperature coefficient of 30 ppm/℃
Application:
PC Motherboard
Voltage monitor
Voltage Reference
PWM down converter with reference
Charger
Pin Configuration
3 of 1
HM432
Symbol Diagram and Block Diagram
Symbol Diagram Block Diagram
Maximum ratings (Ta=25℃)
Characteristic Symbol Max. Unit
Cathode Voltage V
KA
18 V
Continuous Cathode Current I
K
100 mA
Reference Input Current I
REF
10 mA
Junction Temperature T
J
150 ℃
Storage Temperature Range T
STG
-45~150 ℃
Recommended Operating Conditions Symbol Min Max Unit
Operating free air temperature range T
A
0 70 ℃
Cathode current I
K
1 100 mA
Cathode voltage V
KA
0 18 V
ADJUSTABLE PRECISION SHUNT REGULATORS HM432
3 of 2
HM432