GMT AT5160TP1U Schematic [ru]
Global Mixed-mode Technology Inc.
AT5160
High Efficiency, Constant Current 40V White-LEDs
Driver
Feature
Operating Voltage: 2.5V to 5.5V.
High Operating Frequency: 1MHz
High Output Voltage: Up to 40V(Typ.)
Digital Dimming Control.
Built-in Cycle-by Cycle Current-Limiting.
Built-in Soft-Start Function.
0.2V Low Reference Voltage
Thermal Overload Protection
TSOT-23-6 Package
Application
GPS Navigation System
Compact Back Light Module
Constant Current Source
LED Module
Description
The AT5160 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 1.0MHz 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 0.2V low reference
voltage minimized the power loss across the
current-setting resistor.
The AT5160 is available in TSOT-23-6 packages.
Ordering Information
ORDER
NUMBER
AT5160TP1U 5160x -40°C to 85°C TSOT-23-6
Note: TP: TSOT-23-6
1: Bonding Code
U: Tape & Reel
Pin Configuration
AT5160
AT5160
6
LX
LX
GND
GND
FB
FB
1
1
2
2
3
3
6
5
5
4
4
VIN
VIN
OVP
OVP
EN
EN
MARKING
TEMP.
RANGE
PACKAGE
(Green)
T ypical Application Circuit
Use the tantalum capacitor to eliminate induct or noise on
※
output terminal when you want to control dimming function.
Ver: 0.3
Sep 16, 2009
TSOT-23-6
TSOT-23-6
1
TEL: 886-3-5788833
http://www.gmt.com.tw
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