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XC9116 Datasheet Step-Up DC/DC Converter-Backlight LED Driver

Manufacturer: Torex Semiconductor

Overview: XC9116 Series Step-Up DC/DC Converter-Backlight LED Driver ETR0407-005.

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General Description

The XC9116 series is a fixed frequency, constant current step-up DC/DC converter ideal for driving LEDs used in backlighting applications such as cellular phones, PDAs and digital cameras.

Output voltage of up to 17.5V can be derived, therefore four white LEDs in series can be driven.

Since an LED current can be set by an external resistor when LEDs are in-series connection, all white LEDs can be turned on equably.

Key Features

  • nput Voltage Range : 2.5V ~ 6.0V Output Voltage Range : Up to 17.5V externally set-up : Reference voltage 0.2V +5% Oscillation Frequency : 1.0MHz, ±20% ON Resistance : 2.0Ω Efficiency : 86% (XC9116B Type) : 84% (XC9116D Type) (VIN=3.6V, ILED=20mA when driving 3 white LEDs in series) Control : PWM control Standby current : ISTB=1.0μA (MAX. ) Load Capacitor : 0.22μF, ceramic Lx Limit Current : 325mA Lx Overvoltage Limit : XC9116B series No Lx Overvoltage Limit : XC9116D series.

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