AT5160 Datasheet PDF - Global Mixed-mode Technology


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AT5160
Global Mixed-mode Technology

Part Number AT5160
Description Constant Current 40V White-LEDs Driver
Page 2 Pages

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Global Mixed-mode Technology
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
Note: TP: TSOT-23-6
1: Bonding Code
U: Tape & Reel
MARKING
5160x
Pin Configuration
TEMP.
RANGE
-40°C to 85°C
PACKAGE
(Green)
TSOT-23-6
Typical Application Circuit
Use the tantalum capacitor to eliminate inductor noise on
output terminal when you want to control dimming function.
LX 1
AT5160
6 VIN
GND 2
5 OVP
FB 3
TSOT-23-6
4 EN
Ver: 0.4
Jan 17, 2013
TEL: 886-3-5788833
http://www.gmt.com.tw
1



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Global Mixed-mode Technology
G2621
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
„ SOT-23-6 Package
Application
„ GPS Navigation System
„ Compact Back Light Module
„ Constant Current Source
„ LED Module
Description
The G2621 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 G2621 is available in SOT-23-6 packages.
Ordering Information
ORDER
NUMBER
G2621TB1U
Note: TB: SOT23-6
1: Bonding Code
U: Tape & Reel
MARKING
2621x
Pin Configuration
TEMP.
RANGE
-40°C to 85°C
PACKAGE
(Green)
SOT-23-6
Typical Application Circuit
Use the tantalum capacitor to eliminate inductor noise on
output terminal when you want to control dimming function.
LX 1
G2621
GND 2
6 VIN
5 OVP
FB 3
SOT-23-6
4 EN
Ver: 0.1
Jan 24, 2013
TEL: 886-3-5788833
http://www.gmt.com.tw
1




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