Microchip logo
  • All
  • Products
  • Documents
  • Applications Notes
product primary image

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
View More
Overview
Documents
Development Environment
Similar Devices
RoHS Information
Buy Now

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

Documents

Jump to:

User Guides


Development tools data is currently unavailable.

Similar Devices

Product
Topology
+Vin min (V)
+Vin max (V)
Price 5K
Buck
7.0
13.2
$0.35
Boost, SEPIC, Buck-Boost
9.0
250
$0.93
Boost, SEPIC, Buck-Boost
9.0
100
$0.99
Boost, SEPIC, Buck-Boost
8.0
40
$0.67
Buck
8.0
60
$0.67
Buck
100
160
$1.38
Boost, SEPIC
10
40
$2.43
Boost, SEPIC, Buck
10
40
$1.60
Boost, SEPIC
10
40
$3.07
Boost
0.9
15
$0.62
Boost
2.5
10
$0.60
Boost
2.5
10
$0.48
Boost
2.5
10
$0.74
Boost
2.5
10
$0.84
Boost
2.5
10
$0.78
Boost
2.5
10
$0.83
Boost
2.5
10
$0.80
Boost
2.5
10
$0.88
Boost
2.5
10
$0.83
Boost
2.5
10
$0.89
Boost
2.5
10
$1.63
Boost
2.5
10
$1.69
Boost
4.5
20
$1.48
Boost
6
40
$2.24
Boost
2.8
6.5
$0.54
Boost
2.5
6.5
$0.85

RoHS Information

Part Number
Device Weight (g)
Shipping Weight (grams)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
MIC3223YTSE-TR
0.238548
16
TSSOP
4.4mm
Matte Tin
e3
MIC3223YTSE
0.163511
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.

Buy from the Microchip Store

Grid
View
Table
View
Filter:
Apply
Clear
Only show products with samples
Product
Leads
Package Type
Temp Range
Packing Media
5K Pricing
Buy