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MIC2299

3.5A Minimum, 2MHz Boost, High Brightness White LED Driver

Status: In Production

Features:

  • Programmable current control
  • 200mV ±10% feedback voltage
  • 2.5V to 10V input voltage
  • Output over voltage protection (OVP)
  • Output voltage up to 30V (max)
  • Fixed 2.0MHz Operation
  • Guaranteed 3.5A switch current over-temperature
  • Solution size of just 0.25in² (1.6cm²)
  • Output power range of 7W to 12W
  • <1% line regulation
  • 1µA shutdown current
  • Over temperature protection
  • Externally programmable soft-start
  • Under-voltage lockout (UVLO)
  • -40°C to +125°C junction temperature range
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Overview
Documents
Development Environment
Similar Devices
RoHS Information
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Device Overview

Summary

The MIC2299 is a high power boost-switching regulator that is optimized for constant-current control. The MIC2299 is capable of driving up to two series 1A white LED for photoflash and other applications. The feedback voltage is only 200mV, minimizing power dissipation in constant-current control applications, and hence extends battery life.

The MIC2299 has a brightness pin that allows for a programmable torch mode as well as full flash with a single pin when driving high current LEDs.

The MIC2299 implements a constant frequency 2MHz PWM control scheme to make the smallest possible design. The MIC2299's 2MHz operation avoids signal interference in the AM band.

The 2.5V to 10V input voltage range of MIC2299 allows direct operation from 1- and 2-cell Li-Ion as well as 3- to 4-cell NiCad/ NiMH/ Alkaline or lithium batteries . Maximum battery life is assured with a low 1µA shutdown current.

Additional Features
    • Programmable current control
    • 200mV ±10% feedback voltage
    • 2.5V to 10V input voltage
    • Output over voltage protection (OVP)
    • Output voltage up to 30V (max)
    • Fixed 2.0MHz Operation
    • Guaranteed 3.5A switch current over-temperature
    • Solution size of just 0.25in² (1.6cm²)
    • Output power range of 7W to 12W
    • <1% line regulation
    • 1µA shutdown current
    • Over temperature protection
    • Externally programmable soft-start
    • Under-voltage lockout (UVLO)
    • -40°C to +125°C junction temperature range
Parametrics
Name
Value
Topology
Boost
+Vin min (V)
2.5
+Vin max (V)
10
Output Current
8A BJT
Dimming
PWM / Analog
Package
VDFN
Product Type
LED Backlight
VOUT
30
llim Typ (A)
4.75
llim Max (A)
8
lq Typ
15mA
Vfb (V)
0.2
Tol Typ %
±8
Duty Cycle Max
0.9
Freq (Hz)
2.0M
OVP
Yes
VEN (V)
1.5
EN
Yes
Soft Start
Yes
UVLO Typ (V)
2.1
Ceramic Cap
Yes
Θja (C/W)
60

Documents

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User Guides

Development Environment

  • Demo & Evaluation Boards
Demo & Evaluation Boards
MIC2299-15YML Evaluation Board
MIC2299-15YML Evaluation Board ( MIC2299-15YML-EV )

This board enables the evaluation of the 3.5A switch, High Power white LED driver MIC2299. The board includes components necessary to set the LED current to 20%, 50% and 100% of the nominal LED current (1A). The external inputs also allow this to be programmed either with additional resistors or voltages on the DIM or BRT pins. A load disconnect switch prevents leakage and protects the battery...

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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
MIC2299-15YML-TR
0.023840
0.644302
12
VDFN
3x3x0.9mm
NiPdAu
e4
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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