# TS19371CX6 Boost (Step-up) WLED Driver

## Overview

The TS19371CX6 is a DC/DC converter designed to drive white LEDs with constant current. It supports up to 126 LEDs (9S14P) from a 12V supply and features a small footprint with a 4.7µF output capacitor.

## Key Features

️· High Efficiency: Typically 89%
️· LED Support: Drives up to 9 LEDs in series (9-15V) or 126 LEDs (9S14P) from 12-15V. Supports up to 6 (1W) LEDs in series at 12V.
️· Protection: Over Output Voltage Protection (30V)
️· Switching Frequency: Fast 1.2MHz, minimizing component size.
️· Dimming: Supports PWM (1kHz-10kHz) and analog dimming control.
️· Compliance: RoHS and Halogen-Free compliant.
️· Package: SOT-26

## Electrical Specifications

️· Input Voltage: 2.5 - 18V (recommended)
️· Feedback Voltage: 95mV

️· Switch Current Limit: 650mA
️· Supply Current: 2.1-3.0 mA

## Application Information

️· Suitable for: Cellular phones, portable electronics, LCD backlighting, MR-16 lighting.
️· External Components: Requires a 10µH inductor and 4.7µF capacitors.
️· LED Current Control: Achieved via a feedback resistor (R1) calculated by R1 = 95mV/ILED.
️· Dimming Options: PWM signal applied to CTRL pin or adjustable DC voltage.

## Ordering Information

️· Part Number: TS19371CX6 RFG
️· Package: SOT-26
️· Packing: 3,000 pcs / 7” Reel