Rate this webpage

CAT4101: LED Driver, 1 A Constant Current with PWM

Datasheet: LED Driver, 1 A Constant Current with PWM
Rev. 8 (147.0kB)
Product Overview
»View Reliability Data
»View Material Composition
» Product Change Notification
The CAT4101 is a constant-current sink driving a string of high-brightness LEDs up to 1 A with very low dropout of 0.5 V at full load. It requires no inductor, provides a low noise operation and minimizes the number of components. The LED current is set by an external resistor connected to the RSET pin. The LED pin is compatible with high voltage up to 25 V, allowing the driving of long strings of LEDs. The device ensures an accurate and regulated current in the LEDs independent of supply and LED forward voltage variation. The PWM/EN input allows the device shutdown and the LED brightness adjustment by using an external pulse width modulation (PWM) signal. The driver features a thermal shutdown protection that becomes active whenever the die temperature exceeds 150C. The device is available in a high-power, 5-lead TO-263 package offering excellent thermal dissipation characteristics.
  • Accurate 1 A Current Sink
  • Up to 25 V Operation on LED Pin
  • Low Dropout 500 mV at 1 A
  • LED Current Set by External Resistor
  • High Resolution PWM Dimming via EN/PWM
  • 'Zero' current Shutdown mode
  • Thermal Shutdown Protection
  • TO263 (D2PAK) 5-lead Package
  • This Device is Pb-Free, Halogen Free/BFR Free and is RoHS Compliant
Applications   End Products
  • High Power LED up to 1A
  • Architectural and General Lighting
  • Automotive Lighting
Technical Documentation & Design Resources
Data Sheets (1) FAQ (2)
Package Drawings (1)  
Budgetary Price/Unit
Case Outline
CAT4101TV-T75 Obsolete
Halide free
CAT4101 TO-263-5 221AE 3 260 Tape and Reel 750  
Market Leadtime (weeks) : Contact Factory
PandS   (2020-09-14 00:00) : <1K
Case Outlines
CAT4101: LED Driver, 1 A Constant Current with PWM
CAT4101: LED Driver, 1 A Constant Current with PWM
Previously Viewed Products
Clear List

New Products

NCV7691  NCV7692  Current Controllers for Automotive LED Lighting

  • Constant current output for LED string drive
  • Dedicated dimming feature via PWM input
  • Multiple LED string control with one controller

NCV7685  12-Channel Linear Current Driver for Automotive LED Lighting

  • Twelve current sources with global current setting up to 60 mA and diagnostics
  • Independent PWM duty cycle control via I2C for each channel
  • Operates as stand-alone or MCU-controlled, and with optional external MOSFET ballast transistor

Your request has been submitted for approval.
Please allow 2-5 business days for a response.
You will receive an email when your request is approved.
Request for this document already exists and is waiting for approval.