AT1316A 台湾致新代理商 GMT DC-DC系列 LED背光驱动器
High Efficiency, Constant Current20V White- LEDs Driver
| Part Number | Vin (V)min. | Vin (V) max. | LED CH | VO_MAX(V) | ISW(A) | FSW(k Hz) | VLED FB (V) | Note | Package |
| AT1316A | 2.5 | 5.5 | 1 | 20.0 | 1.2 | 1000 | 0.2 | LX, GND, FB, EN, OVP, VIN, EN Dimming 100~200k Hz |
TSOT-23-6 |
Description
The AT1316A step-up converter drives white LEDs with a constant current to provide backlight in cell phones, PDAs, and other hand-held devices. It features allowing series connection of the white LEDs so that the LED currents are identical for uniform brightness. An enable input can be pulsed repeatedly to adjust LED’s brightness. The fast 1.0 MHz current-mode PWM control allows for smaller capacitor and inductor. Fault condition protection uses cycle-by-cycle current limiting to sense maximum inductor current, thermal protection and over-voltage protection. Also included soft-start eliminates inrush current during start-up. The low reference voltage minimized the power loss across the current-setting resistor.
The AT1316A is available in TSOT-23-6 packages.
Feature
Operating Voltage: 2.5V to 5.5V.
High Operating Frequency: 1MHz
High Output Voltage: Up to 20V(Typ.)
Digital Dimming Control.
Built-in Cycle-by Cycle Current-Limiting. Built-in Soft-Start Function.
0.1V/0.2V/0.3V Low Reference Voltage
Thermal Overload Protection
TSOT-23-6 Package
Application
GPS Navigation System
Compact Back Light Module
Constant Current Source
LED Module
Ordering Information
| ORDER NUMBER | MARKING | VOLTAGE | TEMP. RANGE | PACKAGE (Green) |
| AT1316A-01TP1U | 3A01x | 0.1V | ~40°C to 85°C | TSOT-23-6 |
| AT1316A-02TP1U | 3A02x | 0.2V | ~40°C to 85°C | TSOT-23-6 |
| AT1316A-03TP1U | 3A03x | 0.3V | ~40°C to 85°C | TSOT-23-6 |
Note: TP : TSOT-23-61 : Bonding Code U: Tape & Reel
Pin Configuration Typical Application Circuit
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