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TEXAS INSTRUMENTS  LM3501TL-16EV  LM3501, DC/DC, STEP UP, LED LIGHTING, EVALUATION BOARD

TEXAS INSTRUMENTS LM3501TL-16EV
Technical Data Sheet (44.28KB) EN See all Technical Docs

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Product Overview

The LM3501TL-16EV is an evaluation board for LM3501, a synchronous step up DC to DC converter designed for white LED applications. The evaluation board is set up to drive three standard VF white LEDs from a single Li ion battery. A fourth LED pad (D4) is included for testing of up to 4 low VF white LEDs. The LED current is set using the resistor R2 and is determined by the voltage applied to the CNTRL pin. The maximum value of VFB is 0.515V and occurs with a CNTRL voltage of approximately 2.7V. This condition translates into approximately 20mA LED current. A lower CNTRL voltage will translate into a lower VFB voltage and a lower LED current. The feedback voltage can be calculated using the equation VFB = 0.191 × CNTRL. A CNTRL voltage of 125mV or greater turns the LEDs on while a CNTRL voltage of 75mV or less turns the LEDs off.
  • Synchronous rectification, high efficiency and no external schottky diode required
  • Uses small surface mount components
  • Can drive up to 3 (or 4 low VF) white LEDs in series
  • 2.7V to 7V input range
  • True shutdown isolation, no LED leakage current
  • DC voltage LED current control
  • Input under voltage lockout
  • Output overvoltage protection, no external zener diode required
  • Requires only a small 16V ceramic capacitor at the output
  • 0.1μA shutdown current

 

Product Information

Core Chip:
LM3501
Device Topology:
Buck (Step Down)
No. of Outputs:
1Outputs
Output Current:
20mA
Output Voltage:
16V
Input Voltage Min:
2.7V
Input Voltage Max:
7V
Dimming Control Type:
-
Kit Contents:
Eval Board LM3501
Product Range:
-
Input Voltage:
2.7V to 7V
SVHC:
No SVHC (15-Jun-2015)
Topology:
Buck (Step Down)

Find similar products  grouped by common attribute

Applications

  • Power Management;
  • Portable Devices;
  • LED Lighting;
  • Imaging, Video & Vision

Legislation and Environmental

Product Traceability
RoHS Compliant:
No
Authorized Distributor

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