Microchip Technology CL7 Linear Constant Current LED Driver with Enable

Microchip CL7 Linear Constant Current LED Driver with Enable is a linear fixed current regulator designed for driving high brightness LEDs at 100mA from nominal 12V, 24V, and 48V power supplies. With a maximum rating of 90V, Microchip CL7 Linear Constant Current LED Driver is able to withstand transients without the need for additional transient protection circuitry. An active-low enable input allows logic level control of the LED for on/off control or PWM dimming. The enable input has 100kΩ pull-down resistance. Overtemperature protection shuts off the LED current when the die temperature rises above +135°C (nominal). Full LED current resumes when the die temperature falls below +105°C (nominal).

Features

  • 100mA ±5% constant current drive
  • Built-in reverse polarity protection
  • Logic level enable
  • Dimmable via EN pin
  • Overtemperature protection
  • 90V max rating for transient immunity

Applications

  • Flashlights
  • Specialty lighting
  • Low voltage signage
  • Low voltage lighting

Typical Application Circuit

Block Diagram - Microchip Technology CL7 Linear Constant Current LED Driver with Enable
เผยแพร่แล้ว: 2555-03-02 | อัปเดตแล้ว: 2565-03-11