ADM00641

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Details for Microchip Technology

ADM00641

MCP1664 LED Driver Evaluation Board
Buy Directly from Microchip Technology (133 in Stock)
$85.0000 per unit
Series Information for ADM00641 - Microchip Technology

Features

  • feature
    1.8A Peak Input Current Limit:
  • feature
    Available Packages:
  • feature
    Cycle-by-Cycle Current Limiting
  • feature
    Disconnected LED String (Prevent Overvoltage to the Converteru2019s Output and SW Pin)
  • feature
    Drive LED Strings in Constant Current
  • feature
    Feedback Pin Shorted to GND (Prevent Excessive Current into LEDs)
  • feature
    ILED up to 150 mA at 4.2V VIN, 8 White LEDs
  • feature
    ILED up to 200 mA at 3.3V VIN, 4 White LEDs
  • feature
    ILED up to 300 mA at 5.0V VIN, 4 White LEDs
  • feature
    Input Voltage Range: 2.4V to 5.5V
  • feature
    Internal Compensation
  • feature
    Open Load Protection (OLP) in the event of:
  • feature
    Overtemperature Protection
  • feature
    PWM Operation: 500 kHz Switching Frequency
  • feature
    Shutdown Current (EN = GND): 40 nA Typical
  • feature
    UVLO at VIN Falling: 1.85V, typical
  • feature
    UVLO at VIN Rising: 2.3V, typical
  • feature
    Undervoltage Lockout (UVLO):
  • feature
    Up to 92% Efficiency

Description

EVAL BOARD MCP1664 LED DRIVER
The MCP1664 is a compact, space-efficient, fixed-frequency, non-synchronous step-up converter optimized to drive multiple strings of LEDs with constant current powered from two and three-cell alkaline or NiMH/NiCd as well as from one-cell Li-Ion or Li-Polymer batteries. The device integrates a 36V, 400 m low-side switch, which is protected by the 1.8A cycle-by-cycle inductor peak current limit operation. The MCP1664 starts up without high inrush current or output overshoot. All compensation and protection circuitry is integrated to minimize the number of external components. The internal feedback (VFB) voltage is set to 300 mV for low power dissipation when sensing and regulating the LED current. A single resistor sets the LED current. The device features an UVLO which avoids start-up with low inputs or discharged batteries for two cell-powered applications. The MCP1664 features an open load protection (OLP) which turns off the operation in situations when the LED string is accidentally disconnected or the feedback pin is short-circuited to GND. While in Shutdown mode (EN = GND), the device stops switching, and consumes 40 nA typical of input current.

Specifications

Device Topology:
Boost (Step Up)
No. of Outputs:
1Outputs
Output Current:
270mA
Output Voltage:
32V
Input Voltage Min:
2.4V
Input Voltage Max:
5.5V
Core Chip:
MCP1664
Dimming Control Type:
PWM
Kit Contents:
Eval Board MCP1664
Product Range:
-
SVHC:
No SVHC (15-Jan-2018)

Alternate Descriptions

Avnet America

MCP1664 LED Driver Evaluation Board

Avnet America product

Microchip Technology Inc

MCP1664 LED Driver Evaluation Board