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MIC4802

800mA Single Channel WLED Driver w/ Ultrafast PWM Control

Status: In Production

Features:

  • High efficiency (no voltage boost losses)
  • Ultra Fast PWM™ control (200Hz to 500kHz)
  • Input voltage range: 3.0V to 5.5V
  • Dropout of 280mV at 800mA
  • Programmable LED current with external resistor
  • Current accuracy of ±1% typical
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Overview
Documents
Development Environment
Similar Devices
RoHS Information
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Device Overview

Summary

The MIC4802 is a high efficiency White LED (WLED) driver designed to drive a single LED up to 800mA. The MIC4802 constant current driver is designed to drive high power LEDs in various lighting applications. The MIC4802 provides the highest possible efficiency as this architecture has no switching losses present in traditional charge pumps or inductive boost circuits. It features a typical dropout of 280mV at 800mA. This allows the LEDs to be driven directly from the voltage source eliminating switching noise/losses present with the use of boost circuitry. The high accuracy (±1% typical) current regulated WLED channel helps ensure uniform display illumination under all conditions. The brightness is controlled through an Ultra Fast PWM™ Control interface operating down to less than 1% duty cycle.

The MIC4802 is available in the 8-pin SOIC Epad package with a junction temperature range of -40°C to +125°C.

Additional Features
    • High efficiency (no voltage boost losses)
    • Ultra Fast PWM™ control (200Hz to 500kHz)
    • Input voltage range: 3.0V to 5.5V
    • Dropout of 280mV at 800mA
    • Programmable LED current with external resistor
    • Current accuracy of ±1% typical
Parametrics
Name
Value
Topology
Linear
+Vin min (V)
3
+Vin max (V)
5.5
Dimming
PWM
Package
SOIC
Product Type
Linear LED Drivers
# of White LEDs
1 @ 800mA
Operating Iq (µA)
4.1
Θja (C/W)
41
Vdropout @ 20mA
280mV @ 800mA

Documents

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Data Sheet

11/05/2015
534KB

User Guides

Development Environment

  • Demo & Evaluation Boards
  • Application Examples
Demo & Evaluation Boards
MIC4802 Evaluation Board
MIC4802 Evaluation Board ( ADM00942 )

The MIC4802 is a high efficiency, single channel, White LED (WLED) driver. This constant current linear device is designed to drive a single high power WLED up to 800mA and features a low dropout of 280mV at 800mA (typical). Brightness is controlled through an Ultra Fast PWM™ interface which can operate from 1% to 100% duty cycle.
The MIC4802 is...

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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
MIC4802YME
0.078000
0.185790
8
SOIC
3.9mm
Matte Tin
e3
MIC4802YME-TR
0.078000
0.700602
8
SOIC
3.9mm
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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