HA17L431ALP Renesas Electronics Corporation., HA17L431ALP Datasheet - Page 3

• Manufacturer Part Number: HA17L431ALP
• Description: Shunt Regulator
• Manufacturer: Renesas Electronics Corporation.

HA17L431/HA17L431A Series
Shunt Regulator
Description
The HA17L431 series and the HA17L431A series are temperature-compensated variable shunt regulators. These ICs
can operate at about half voltage in comparison with HA17431 series. They can be replaced for simple Zener diode and
they can also be used for switching power supply secondary-side error amplification circuit.
Features
Block Diagram
Application Circuit Example
Rev.6.00 Jun 15, 2005 page 1 of 9
On-chip high-precision reference voltage source : 1.240 V ± 1.0% at Ta = 25 C (HA17L431A)
Small reference voltage temperature coefficient: 30 ppm/ C Typ
Maximum cathode voltage: 16 V
Maximum cathode current: 50 mA
Minimum cathode current: 200 A Typ
Operating temperature range: 20 to +85 C
Switching Power Supply Secondary-Side
Error Amplification Circuit
REF
1.240 V
HA17L431/HA17L431A
+
: 1.240 V ± 1.5% at Ta = 25 C (HA17L431)
K
A
+
R
REF
K
A
R1
R2
Vout
GND
(Previous: ADE-204-029E)
REJ03D0691-0600
Jun 15, 2005
Rev.6.00