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MIC2871

1.2A High-Brightness LED Flash Driver with Single-Wire Serial Interface

Status: In Production

Features:

  • Up to 1.2A flash LED driving current
  • Highly efficient, synchronous boost driver (up to 94%)
  • ±5% LED current accuracy
  • Control through single-wire serial interface or external control pins
  • Input voltage range: 2.7V to 5.5V
  • True load disconnect
  • Configurable safety time-out protection
  • Output overvoltage protection (OVP)
  • LED short detection and protection
  • 1µA shutdown current
  • Available in 14-pin 3mm × 2mm LDFN package
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

The MIC2871 is a high-current, high-efficiency flash LED driver. The LED driver current is generated by an integrated inductive boost converter with a 2MHz switching frequency which allows the use of very small inductor and output capacitor. These features make the MIC2871 an ideal solution for high-resolution camera phone LED flash light driver applications.

The MIC2871 operates in either flash or torch modes that can be controlled through the single-wire serial interface and/or external control pins. Default flash and torch brightness can be adjusted via an external resistor. A robust single-wire serial interface allows simple control by the host processor to support typical camera functions such as auto-focus, white balance, and image capture (flash mode).

The MIC2871 is available in a 14-pin 3mm × 2mm LDFN package with a junction temperature range of −40°C to +125°C

Additional Features
    • Up to 1.2A flash LED driving current
    • Highly efficient, synchronous boost driver (up to 94%)
    • ±5% LED current accuracy
    • Control through single-wire serial interface or external control pins
    • Input voltage range: 2.7V to 5.5V
    • True load disconnect
    • Configurable safety time-out protection
    • Output overvoltage protection (OVP)
    • LED short detection and protection
    • 1µA shutdown current
    • Available in 14-pin 3mm × 2mm LDFN package
Parametrics
Name
Value
Product Type
Camera Flash LED Drivers
VIN Min (V)
2.7
VIN Max (V)
5.5
# of LED Channels
1
Max LED Current (mA)
1200
Standby Current (mA)
0.23
Switching Frequency
2
Θja (C/W)
66
Peak Efficiency
94
Current Accuracy
±5%
Interface
Single-Wire

Documents

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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
MIC2871YMK-T5
0.559100
14
WDFN
3x2x0.8mm
Matte Tin
e3
MIC2871YMK-TR
0.559100
14
WDFN
3x2x0.8mm
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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