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MCP1664

High Voltage Output Boost LED Constant Current Regulator

Status: In Production

Features:

  • Up to 92% Efficiency
  • High Output Voltage Range: up to 32V
  • ILEDup to 300 mA @ 5.0V VIN, 4 White LEDs
  • ILED up to 200 mA @ 3.3V VIN, 4 White LEDs
  • ILED up to 150 mA @ 4.2V VIN, 8 White LEDs
  • Input Voltage Range: 2.4V to 5.5V
  • UVLO@VIN Rising:  2.3V, typical
  • UVLO@VIN Falling: 1.85, typical
  • No Load Input Current: 250 µA, typical
  • Sleep mode with 200 nA Typical Quiescent Current
  • PWM Operation with Skip mode: 500 kHz
  • Feedback Voltage Reference: VFB= 300 mV
  • Cycle-by-Cycle Current Limiting
  • Internal Compensation
  • Inrush Current Limiting and Internal Soft-Start
  • Feedback Pin Shorted to GND (Prevent Excessive Current into LEDs)
  • Disconnected LED String (Prevent Overvoltage to the Converter’s Output and SW Pin)
  • Overtemperature Protection 
  • Available Packages: 5-Lead SOT-23 or 2x3 8-Lead TDFN
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

The MCP1664 device is a compact, space-efficient, fixed-frequency, non-synchronous step-up converter optimized to drive LED strings with constant current from two and three-cell alkaline and NiMH/NiCd or one-cell Li-Ion or Li-Polymer batteries.
The device integrates a 36V, 400 mΩ low-side switch, which is protected by the 1.8A cycle-by-cycle inductor peak current limit operation. Low-voltage technology allows the MCP1664 to start-up without high inrush current or output overshoot. All compensation and protection circuitry is integrated to minimize the number of external components.

Additional Features
    • Up to 92% Efficiency
    • High Output Voltage Range: up to 32V
    • 1.8A Peak Input Current Limit:
      • ILEDup to 300 mA @ 5.0V VIN, 4 White LEDs
      • ILED up to 200 mA @ 3.3V VIN, 4 White LEDs
      • ILED up to 150 mA @ 4.2V VIN, 8 White LEDs
    • Input Voltage Range: 2.4V to 5.5V
    • Undervoltage Lockout (UVLO):
      • UVLO@VIN Rising:  2.3V, typical
      • UVLO@VIN Falling: 1.85, typical
    • No Load Input Current: 250 µA, typical
    • Sleep mode with 200 nA Typical Quiescent Current
    • PWM Operation with Skip mode: 500 kHz
    • Feedback Voltage Reference: VFB= 300 mV
    • Cycle-by-Cycle Current Limiting
    • Internal Compensation
    • Inrush Current Limiting and Internal Soft-Start
    • Output Overvoltage Protection (OVP) in the event of:
      • Feedback Pin Shorted to GND (Prevent Excessive Current into LEDs)
      • Disconnected LED String (Prevent Overvoltage to the Converter’s Output and SW Pin)
    • Overtemperature Protection 
    • Available Packages: 5-Lead SOT-23 or 2x3 8-Lead TDFN
Parametrics
Name
Value
Regulator Type
Step Up (Boost)
Input Voltage Range Min (V)
2.4
Input Voltage Range Max (V)
5.5
Output Voltage Range Max (V)
32
Output Current (mA) max
300
Quiescent Current (mA) typ
0.25
Switching Frequency (kHz)
500
Operating Temp Range
-40 to 125
Vfb (V)
0.3
Duty Cycle Max (%)
90
SHUTDOWN Current (µA) (Typ)
0.04
Switch current (A) typ
1.8

Documents

Jump to:

Data Sheet

06/25/2015
571KB

Silicon Product

06/30/2015
0B

Gerber Files

Development Environment

  • Demo & Evaluation Boards
  • Application Examples
Demo & Evaluation Boards
MCP1664 LED Driver Evaluation Board
MCP1664 LED Driver Evaluation Board ( ADM00641 )

The MCP1664 LED Driver Evaluation Board is used to evaluate and demonstrate Microchip Technology’s MCP1664 product. This board demonstrates the MCP1664 in a boost converter application supplied from an external voltage source, which drives a string of LEDs with three selectable currents. The MCP1664 LED Driver Evaluation Board was developed to help engineers reduce the product design cycle...

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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
MCP1664T-E/OT
0.016000
0.049000
5
SOT-23
-
Matte Tin
e3
MCP1664T-E/MNY
0.014300
0.248485
8
TDFN
2x3x0.8mm
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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