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HV9803

LED Driver IC w/ Average-Mode Constant Current Control

Status: In Production

Features:

  • Fast average current control
  • Correction for propagation delay and offset voltage
  • Fixed off-time switching mode
  • Linear dimming input
  • PWM dimming input
  • Output short circuit protection with programmable skip mode
  • Input under-voltage shutdown
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Overview
Documents
Development Environment
Similar Devices
RoHS Information
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Device Overview

Summary

The HV9803 is an open loop average-mode current control LED driver IC operating in a constant off-time mode. The IC features ±2% current accuracy, tight line and load regulation of the LED current without any need for loop compensation or high-side current sensing. Its auto-zero circuit cancels the effect of both the input offset voltage and the propagation delay in the current sense comparator. The HV9803 can be powered from a 7.0~13.2V supply. The IC features fast PWM dimming response. The linear dimming input LD can accept a reference voltage up to 2.5V. The IC is equipped with a current limit comparator for hiccup-mode output short circuit protection. It also features a programmable input under-voltage shutdown.

Additional Features
    • Fast average current control
    • Correction for propagation delay and offset voltage
    • Fixed off-time switching mode
    • Linear dimming input
    • PWM dimming input
    • Output short circuit protection with programmable skip mode
    • Input under-voltage shutdown
Parametrics
Name
Value
Topology
Buck
+Vin min (V)
7
+Vin max (V)
13.2
Output Current
External FET
Dimming
PWM / Linear
Package
SOIC-8
Operating Iq (µA)
1.5

Documents

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
HV9803BLG-G
0.078000
0.230303
8
SOIC
.150In(3.90mm)
Matte Tin
e3
HV9803LG-G
0.078000
0.230303
8
SOIC
.150In(3.90mm)
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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