HV9910BLG - LED Driver, Buck

HV9910BLG - LED Driver, Buck (Step Down), 8V to 450V, Soic8

Informação do produto
Device Topology: Buck (Step Down)
Input Voltage Min: 8V
Input Voltage Max: 450V
Output Voltage Max: -
Output Current Max: -
Switching Frequency: 100kHz
No. of Outputs: 1Outputs
IC Mounting: SMD
Driver Case Style: NSOIC
No. of Pins: 8Pins
Operating Temperature Min: -40°C
Operating Temperature Max: 125°C
Product Range: -
Automotive Qualification Standard: -
MSL: MSL 1 - Unlimited

Descrição geral do produto
The HV9910BLG-G is an open loop current mode Control LED Driver IC programmed to operate in either a constant frequency or constant off-time mode. It includes an 8 to 450V linear regulator allows it to work from a wide range of input voltages without the need for an external low voltage supply. The HV9910B includes a PWM dimming input that can accept an external control signal with a duty ratio of 0 to 100% and a frequency of up to a few kilohertz. It also includes a 0 to 250mV linear dimming input which can be used for linear dimming of the LED current. The HV9910B is ideally suited for buck LED drivers. Since the HV9910B operates in open loop current mode control, the controller achieves good output current regulation without the need for any loop compensation. PWM dimming response is limited only by the rate of rise and fall of the inductor current, enabling very fast rise and fall times.

Switch mode controller for single switch LED drivers
Enhanced drop-in replacement to the HV9910
Open loop peak current controller
Linear and PWM dimming capability
Requires few external components for operation
Low internal noise

Aplicações

LED Lighting, Power Management