Diodes Incorporated

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1.5A SW Current, 40V Precision WLED Driver

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The PAM2841 is a white LED driver, capable of driving 10 or more WLEDs in series (depending on forward voltage of the LEDs) with a range of input voltages from 2.7V to 5.5V.

The PAM2841 features overcurrent protection, overvoltage protection, undervoltage lockout and overtemperature protection, which prevent the device from damage.

LED dimming can be done by four methods as described in the Application Information hereinafter.


  • Capable of Driving 10 or More WLEDs
  • Chip-Enable with Soft-Start
  • Analog and PWM Dimming
  • Peak Efficiency Up to 90%
  • Low Quiescent Current
  • Fixed Frequency of 1MHz
  • Overcurrent Protection
  • Overvoltage Protection
  • Thermal Protection
  • UVLO
  • Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
  • Halogen and Antimony Free. “Green” Device (Note 3)
  • For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/104/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative. https://www.diodes.com/quality/product-definitions/


  • WLED driver systems

Product Specifications

Product Parameters

AEC Qualified No
Compliance (Only Automotive supports PPAP) Standard
Topologies (Buck) No
Topologies (Buck-Boost) No
Topologies (Boost) Yes
Topologies (Charge Pump) No
Minimum Input Voltage (V) 2.7
Maximum Input Voltage (V) 5.5
Maximum Output Voltage (V) 40
Maximum LED Current (A) 0.2
Switching Frequency Maximum (kHz) 1
Dimming (PWM) Yes
Dimming (Analog) No
Efficiency (%) 90
Operating Temperature Range (°C) -40 to 85
Quiescent Current Typ (mA) 0.2
AEC-Q100 Grade No

Related Content


Technical Documents

Evaluation Boards and User Guides

Recommended Soldering Techniques


Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN # Issue Date Implementation Date Subject
PCN-2512 2021-04-16 2021-07-16 Qualified Additional Assembly & Test (A/T) Site