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MIC3201

HBLED Driver with High-Side Current Sense

Status: In Production

Features:

  • 6.0V to 20V input voltage range
  • High efficiency (>90%)
  • ±5% LED current accuracy
  • High-side current sense
  • Dedicated dimming control input
  • Hysteretic control (no compensation!)
  • 1A internal power switch
  • Up to 1MHz switching frequency
  • Adjustable constant LED current
  • 5V on board regulator
  • Over-temperature protection
  • -40°C to +125°C Junction temperature range
  • Available in an 8-Pin ePad SOIC package
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Overview
Documents
Development Environment
Similar Devices
RoHS Information
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Device Overview

Summary

The MIC3201 is a hysteretic step-down, constant-current, High-Brightness LED (HB LED) driver capable of driving up to four 1A LEDs. It provides an ideal solution for interior/exterior lighting, architectural and ambient lighting, LED bulbs, and other general illumination applications.

The MIC3201 operates with an input voltage range from 6V to 20V. The hysteretic control gives good supply rejection and fast response during load transients and PWM dimming. The high-side current sensing and on-chip current sense amplifier delivers LED current with ±5% accuracy. An external high-side current sense resistor is used to set the output current.

The MIC3201 offers a dedicated PWM input (DIM) which enables a wide range of pulsed dimming. A high switching frequency operation up to 1MHz allows the use of smaller external components minimizing space and cost.

The MIC3201 operates over a junction temperature range of -40°C to +125°C and is available in an 8-pin ePad SOIC package.

Additional Features
    • 6.0V to 20V input voltage range
    • High efficiency (>90%)
    • ±5% LED current accuracy
    • High-side current sense
    • Dedicated dimming control input
    • Hysteretic control (no compensation!)
    • 1A internal power switch
    • Up to 1MHz switching frequency
    • Adjustable constant LED current
    • 5V on board regulator
    • Over-temperature protection
    • -40°C to +125°C Junction temperature range
    • Available in an 8-Pin ePad SOIC package
Parametrics
Name
Value
Topology
Buck
+Vin min (V)
6
+Vin max (V)
20
Output Current
1A FET
Dimming
PWM
Package
ePAD SOIC
Product Type
High Brightness
Type
Hysteretic
# of White LEDs
Up to 4
Operating Iq (µA)
1.2
Vfb (V)
2
Switching Frequency
Hyst to 1.0MHz
Switching MOSFET
Internal 1A
ILED Accuracy
±5%
Θja (C/W)
41

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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
MIC3201YME
0.078000
0.185790
8
SOIC
3.9mm
Matte Tin
e3
MIC3201YME-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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