L5101 Datasheet PDF - Unisonic Technologies
| Part Number | L5101 | |
| Description | WHITE LED STEP-UP CONVERTER | |
| Manufacturers | Unisonic Technologies | |
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There is a preview and L5101 download ( pdf file ) link at the bottom of this page. Total 9 Pages | ||
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UNISONIC TECHNOLOGIES CO., LTD
L5101
LINEAR INTEGRATED CIRCUIT
WHITE LED STEP-UP
CONVERTER
DESCRIPTION
The UTC L5101 is a fixed frequency step-up PWM DC/DC
converter and designed for white LEDS driving with a constant
current to provide backlight in handheld devices. The device
switches at a high frequency 1.2MHz by an internal N-channel
MOSFET switch to be capable of minimum external components
using.
The UTC L5101 can drive up to 5 LEDs in series by a Li-Ion cell.
Series connection of LEDS provides identical LED currents
resulting in uniform brightness without ballast resistors. The low
95mV feedback voltage minimizes power loss in the current setting
resistor can have better efficiency.
FEATURES
* Built-In Open Circuit Protection
* Built-In Over Voltage Protection
* High Efficiency(Up to 84% at VIN=4.2V, 3 LEDs, ILEwDw=w.2Da0tamSheAet)4U.com
* 1.2MHz fixed switching frequency
* Low supply current: 70µA
* Matches LED current
* Requires tiny inductor and capacitors
4
5
6
3
2
1
SOT-26
*Pb-free plating product number: L5101L
ORDERING INFORMATION
Order Number
Normal
Lead Free Plating
L5101-AG6-R
L5101L-AG6-R
Package
SOT-26
Packing
Tape Reel
www.unisonic.com.tw
Copyright © 2005 Unisonic Technologies Co., Ltd
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L5101
TEST CIRCUIT
VIN
C1
1F
L1
10 H
VIN SW
SHDN OVP
GND
FB
L5101
LINEAR INTEGRATED CIRCUIT
D1
RB521S-30
C2
0.22 F
ILED
RFB
4.7
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for L5101 electronic component. |
| Information | Total 9 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ L5101.PDF Datasheet ] | |
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Featured Datasheets
| Part Number | Description | MFRS |
| L5100 | The function is WHITE LED STEP-UP CONVERTER. Unisonic Technologies | |
| L5101 | The function is WHITE LED STEP-UP CONVERTER. Unisonic Technologies | |
| L5107 | The function is CONSTANT CUTTENT BOOST CONTROLLER. Unisonic Technologies | |
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