H234 Datasheet, PDF (1/8 Pages) Hi-Sincerity Mocroelectronics – Constant Voltage and Constant Current Control

HI-SINCERITY
MICROELECTRONICS CORP.
H234
Spec. No. : IC200915
Issued Date : 2009.08.12
Revised Date :
Page No. : 1/8
Description
The H234 is a highly integrated solution for a constant voltage/constant
6-Lead Plastic SOT-23-6L（TSOP-6）
Package Code: N
current mode SMPS application.
The H234 contains one 1.21V voltage reference with ± 0.5% accuracy, one
current sensing circuit and two operational amplifiers. Combining the voltage
reference with one operational amplifier makes H234 an ideal voltage
controller for use in adapters and battery chargers. The other low voltage reference combined with the other
operational amplifier makes it an ideal current limiter for output low side current sensing.
The H234 is available in SOT-23-6L( TSOP-6 ) package.
Features
· Constant Voltage and Constant Current Control
· Precision Internal Voltage Reference
· Few External Components
· Easy Compensation
· Low Supply Current
· Operating Temperature Range: -40 to 105℃
Applications
· Adapters
· Battery Chargers
Pin Configuration
Pin Number
1
2
3
4
5
6
Pin Name
VCTRL
GND
VOUT
ICTRL
VSENSE
VCC
Function
Input pin of the voltage control loop
Ground
Output pin. Sinking current only
Input pin of the current control loop
Input pin of the current control loop
Power supply
H234
HSMC Product Specification