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Número de pieza | XL4101 | |
Descripción | 3A 150kHz 40V Buck Li Battery Charger | |
Fabricantes | XLSEMI | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de XL4101 (archivo pdf) en la parte inferior de esta página. Total 6 Páginas | ||
No Preview Available ! 3A 150kHz 40V Buck Li Battery Charger
Datasheet
XL4101
Features
n Wide 4.5V to 40V Input Voltage Range
n Output Adjustable from 1.235V to 37V
n Minimum Drop Out 1.5V
n Fixed 150kHz Switching Frequency
n 3A Constant Output Current Capability
n Internal Optimize Power Transistor
n Excellent line and load regulation
n With output constant current loop
n Built in thermal shutdown function
n Built in current limit function
n Built in output over voltage protection
n TO263-5L package
General Description
The XL4101 is a 150KHz fixed frequency
PWM buck (step-down) DC/DC converter,
capable of driving a 3A load with high
efficiency, low ripple and excellent line and
load regulation. Requiring a minimum
number of external components, the regulator
is simple to use and include internal
frequency compensation and a
fixed-frequency oscillator.
The PWM control circuit is able to adjust the
duty ratio linearly from 0 to 100%. An over
current protection function is built inside.
An internal compensation block is built in to
minimize external component count.
Applications
n Car Charger
n Battery Charger
Figure1. Package Type of XL4101
Rev 1.2
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1
1 page 3A 150kHz 40V Buck Li Battery Charger
Datasheet
XL4101
XL4101 Electrical Characteristics
Ta = 25℃;unless otherwise specified.
Symbol Parameter
Test Condition
Min. Typ. Max. Unit
System parameters test circuit figure4
VFB
Feedback
Voltage
Vin = 8V to 32V, Vout=5V
Iload=0.2A to 3A
1.198 1.235 1.272 V
Efficiency
ŋ
Vin=12V ,Vout=5V
Iout=3A
- 80 - %
Electrical Characteristics (DC Parameters)
Vin = 12V, GND=0V, Vin & GND parallel connect a 220uf/50V capacitor; Iout=500mA, Ta =
25℃; the others floating unless otherwise specified.
Parameters
Symbol
Test Condition
Min. Typ. Max. Unit
Input operation voltage
Vin
4.5 40 V
Quiescent Supply Current
Iq
VFB =Vin
2 5 mA
Oscillator Frequency
Fosc
127 150 172 Khz
Switch Current Limit
IL
VFB =0
3.6
Output Saturation Voltage
Constant current sense
Voltage
VCE
VCS
VFB=0V
ISW=2A
1.1 1.4
0.140 0.155 0.170
Schottky Diode Selection Table
Current Surface Through VR (The same as system maximum input voltage)
Mount Hole
20V 30V 40V 50V 60V
1A √ 1N5817 1N5818 1N5819
A
V
V
√
3A
√
√
√
√
√
1N5820
MBR320
SK32
SR302
1N5821
MBR330
SK33
30WQ03
31DQ03
SR303
1N5822
MBR340
SK34
30WQ04
31DQ04
SR304
MBR350
SK35
30WQ05
31DQ05
SR305
MBR360
SK36
SR306
Rev 1.2
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5
5 Page |
Páginas | Total 6 Páginas | |
PDF Descargar | [ Datasheet XL4101.PDF ] |
Número de pieza | Descripción | Fabricantes |
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