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HV9911 Datasheet Switch-mode Led Driver Ic

Manufacturer: Supertex

Overview: HV9911 Switch-Mode LED Driver IC with High Current Accuracy.

Datasheet Details

Part number HV9911
Manufacturer Supertex
File Size 593.46 KB
Description Switch-Mode LED Driver IC
Datasheet HV9911_Supertex.pdf

General Description

The HV9911 is a current mode control LED driver IC designed to control single switch PWM converters (buck, boost, buckboost, or SEPIC), in a constant frequency or constant off-time mode.

The controller uses a peak current control scheme, (with programmable slope pensation), and includes an internal transconductance amplifier to control the output current in closed loop, enabling high output current accuracy.

In the constant frequency mode, multiple HV9911s can be synchronized to each other, or to an external clock, using the SYNC pin.

Key Features

  • Switch mode controller for single switch drivers.
  • Buck.
  • Boost.
  • Buck-boost.
  • SEPIC.
  • Works with high side current sensing.
  • Closed loop control of output current.
  • High PWM dimming ratio.
  • Internal 250V linear regulator (can be extended using external Zener diodes).
  • Internal 2% voltage reference (0°C < TA < 85°C).
  • Constant frequency or constant off-time operation.
  • Programmable slope compensation.
  • Enable & PWM dimming.

Similar Datasheet

Brand Logo Part Number Description Manufacturer
Microchip Logo HV9911 Switch-Mode LED Driver Microchip

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HV9911 Distributor