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HV9910/HV9903/HV9930/HV9931/HV9911, HV9910B, HV9910BL6-6

Table of contents:
Info of HV9910/HV9903/HV9930/HV9931/HV9911
Info of HV9910B
Info of HV9910BL6-6

HV9910/HV9903/HV9930/HV9931/HV9911, HV9910B, HV9910BL6-6 Selling Leads, Datasheet

MFG:supertex Package Cooled:SO-8 16 DIP-8 D/C:2009+

HV9910/HV9903/HV9930/HV9931/HV9911, HV9910B, HV9910BL6-6 Picture

HV9910/HV9903/HV9930/HV9931/HV9911, HV9910B, HV9910BL6-6 Datasheet download

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Part Number: HV9910/HV9903/HV9930/HV9931/HV9911

MFG: supertex

Package Cooled: SO-8 16 DIP-8

D/C: 2009+

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HV9910B General Description

The HV9910B is an open loop, current mode, control LED driver IC. The HV9910B can be programmed to operate in either a constant frequency or constant off-time mode. It includes an 8.0 - 450V linear regulator which 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 - 100% and a frequency of up to a few kilohertz.

It also includes a 0 - 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. The HV9910B requires only three external components (apart from the power stage) to produce a controlled LED current making it an ideal solution for low cost LED drivers.

HV9910B Maximum Ratings

Parameter	Value
V_IN to GND	-0.5V to +470V
V_DD to GND	12V
CS, LD, PWMD, GATE, RT to GND	-0.3V to (VDD +0.3V)
Junction temperature range	-40to +150
Storage temperature range	-65 to +150
Continuous power dissipation (TA = +25) 8-Lead SOIC 16-Lead SOIC	630mW 1300mW

Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifi cations is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

HV9910B Features

Switch mode controller for single switch LED drivers
Enhanced drop-in replacement to the HV9910
Open loop peak current controller
Internal 8.0 to 450V linear regulator
Constant frequency or constant off-time operation
Linear and PWM dimming capability
Requires few external components for operation

HV9910B Typical Application

DC/DC or AC/DC LED driver applications
RGB backlighting LED driver
Back lighting of fl at panel displays
General purpose constant current source
Signage and decorative LED lighting
Chargers

HV9910B Connection Diagram

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