HV9912 Overview
Key Specifications
Package: SOIC
Mount Type: Surface Mount
Pins: 16
Max Voltage (typical range): 100 V
Description
The HV9912 is a current mode control LED driver IC designed to control single switch PWM converters (buck, boost, buck-boost or SEPIC) in a constant frequency mode. The controller uses a peak current-mode control scheme with programmable slope compensation and includes an internal transconductance amplifier to control the output current in closed loop enabling high output current accuracy (in the case of buck and buck-boost converters, the output current can be sensed using a high side current sensor like the HV7800).
Key Features
- Switch mode controller for single switch drivers
- Buck-boost and SEPIC
- Works with high side current sensors
- Closed loop control of output current
- High PWM dimming ratio
- Internal 90V linear regulator (can be extended using external zener diodes)
- Internal 2% voltage reference (0°C < TA < 85°C)
- Constant frequency operation
- Programmable slope compensation
- Linear & PWM dimming
