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HV9961

LED Driver w/ Average-Mode Constant Current Control

Status: In Production

Features:

  • Fast average current control
  • Programmable constant off-time switching
  • Linear dimming input
  • PWM dimming input
  • Output short circuit protection with skip mode
  • Ambient operating temperature -40°C to +125°C
  • Pin-compatible with the HV9910B
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Overview
Documents
Development Environment
Similar Devices
RoHS Information
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Device Overview

Summary

The HV9961 is an average current mode control LED driver IC operating in a constant off-time mode. Unlike HV9910B, this control IC does not produce a peak-to-average error, and therefore greatly improves accuracy, line and load regulation of the LED current without any need for loop compensation or high-side current sensing. The output LED current accuracy is ±3%. The IC is equipped with a current limit comparator for hiccup-mode output short circuit protection. The HV9961 can be powered from an 8.0 - 450V supply. A PWM dimming input is provided that accepts an external control TTL compatible signal. The output current can be programmed by an internal 275mV reference, or controlled externally through a 0 - 1.5V dimming input. HV9961 is pin-to-pin compatible with HV9910B and it can be used as a drop-in replacement for many applications to improve the LED current accuracy and regulation.

Additional Features
  • Fast average current control
  • Programmable constant off-time switching
  • Linear dimming input
  • PWM dimming input
  • Output short circuit protection with skip mode
  • Ambient operating temperature -40°C to +125°C
  • Pin-compatible with the HV9910B
Parametrics
Name
Value
Topology
Buck
+Vin min (V)
8
+Vin max (V)
450
Output Current
External FET
Dimming
PWM / Linear
Package
SOIC-8, SOIC-16
Product Type
Off Line
Type
Average-Mode
Operating Iq (µA)
0.5
ILED Accuracy
±3%
Θja (C/W)
128, 82

Documents

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User Guides

Development Environment

  • Demo & Evaluation Boards
  • Software Libraries
Demo & Evaluation Boards
HV9961DB1 Demo Board
HV9961DB1 Demo Board ( HV9961DB1 )

The HV9961 demoboard is a high-brightness LED driver employing average-mode constant current control scheme. The power conversion stage of the HV9961DB1 consists of a diode bridge rectifier followed by a buck converter operating with fixed off-time of 20μs.  The HV9961DB1 LED driver features tight regulation of the LED current within a few milliamps over the entire range of the input AC...

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Add To Cart
Software Libraries
Analog Simulation - HV9961

The HV9961 is an average current mode control LED driver IC operating in a constant off-time mode. Unlike HV9910B, this control IC does not produce a peak-to-average error, and therefore greatly...

Learn More

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (grams)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
HV9961LG-G
0.078000
0.230303
8
SOIC
.150In(3.90mm)
Matte Tin
e3
HV9961NG-G
0.157400
0.311111
16
SOIC
.150in
Matte Tin
e3
HV9961NG-G-M901
0.157400
0.307692
16
SOIC
.150in
Matte Tin
e3
HV9961NG-G-M934
0.157400
0.307692
16
SOIC
.150in
Matte Tin
e3
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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