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MIC3223

High Power Boost LED Driver with Integrated FET

Status: In Production

Features:

  • 4.5V to 20V supply voltage
  • 200mV feedback voltage with an accuracy of ±5%
  • Step-up output voltage (boost) conversion up to 37V
  • 1MHz switching frequency
  • 100mΩ/3.5A internal power FET switch
  • LEDs can be dimmed using a PWM signal
  • User settable LED current (through external resistor)
  • Externally programmable soft-start
  • Protection features that include:
  • Output over voltage protection (OVP)
  • Under voltage lockout (UVLO)
  • Over temperature protection
  • Junction temperature range: -40°C to +125°C
  • Available in an exposed pad 16-pin TSSOP package
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Overview
Documents
Development Environment
Similar Devices
RoHS Information
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Device Overview

Summary

The MIC3223 is a constant current boost LED driver capable of driving a series string of high power LEDs. The MIC3223 can be used in general lighting, bulb replacement, garden pathway lighting, and other solid state illumination application. The MIC3223 is a peak current mode control PWM boost regulator and the 4.5V and 20V operating input voltage range allows multiple applications from a 5V or a 12V bus. The MIC3223 implements a fixed internal 1MHz switching frequency to allow for a reduction in the design footprint size. Power consumption has been minimized through the implementation of a 200mV feedback voltage that provides an accuracy of ±5%. The MIC3223 can be dimmed through the use of a PWM signal and features an enable pin for a low power shutdown state. The MIC3223 is a very robust LED driver and offers the following protection features: over voltage protection (OVP), thermal shutdown, switch current limiting and under voltage lockout (UVLO). The MIC3223 is offered in a low profile exposed pad 16-pin TSSOP package.

Additional Features
    • 4.5V to 20V supply voltage
    • 200mV feedback voltage with an accuracy of ±5%
    • Step-up output voltage (boost) conversion up to 37V
    • 1MHz switching frequency
    • 100mΩ/3.5A internal power FET switch
    • LEDs can be dimmed using a PWM signal
    • User settable LED current (through external resistor)
    • Externally programmable soft-start
    • Protection features that include:
      • Output over voltage protection (OVP)
      • Under voltage lockout (UVLO)
      • Over temperature protection
    • Junction temperature range: -40°C to +125°C
    • Available in an exposed pad 16-pin TSSOP package
Parametrics
Name
Value
Topology
Boost
+Vin min (V)
4.5
+Vin max (V)
20
Output Current
10A FET
Dimming
PWM
Package
TSSOP
Product Type
High Power
VOUT
37
llim Typ (A)
9
llim Max (A)
10.5
lq Typ
2.1mA
Vfb (V)
0.2
Tol Typ %
±5
Duty Cycle Max
0.9
Freq (Hz)
1.0M
OVP
Yes
VEN (V)
1.5
EN
Yes
Soft Start
Yes
UVLO Typ (V)
3.7
Ceramic Cap
Yes
Θja (C/W)
36.5

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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
MIC3223YTSE
0.163511
16
TSSOP
4.4mm
Matte Tin
e3
MIC3223YTSE-TR
0.238548
16
TSSOP
4.4mm
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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