|
|
PDF XL4501 Data sheet ( Hoja de datos )
| Número de pieza | XL4501 | |
| Descripción | 5A 150KHz 36V Buck DC/DC Converter | |
| Fabricantes | XLSEMI | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de XL4501 (archivo pdf) en la parte inferior de esta página. Total 16 Páginas | ||
|
No Preview Available !
XLSEMI
5A 150KHz 36V Buck DC/DC Converter With Constant Current Loop
Datasheet
XL4501
Features
n Wide 8V to 36V Input Voltage Range
n Output Adjustable from 1.25V to 32V
n Minimum Drop Out 0.3V
n Fixed 150KHz Switching Frequency
n Maximum 5A Switching Current
n Internal Optimize Power MOSFET
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 Available in TO263-5L package
Applications
n Car Charger
n Battery Charger
n LCD Monitor and LCD TV
n Portable instrument power supply
n Telecom / Networking Equipment
n Buck constant current driver
n Monitor LED Backlighting
n General purpose LED lighting
General Description
The XL4501 is a 150KHz fixed frequency
PWM buck (step-down) DC/DC converter,
capable of driving a 4.5A 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 enable
function, an over current protection function
is built inside. An internal compensation
block is built in to minimize external
component count.
Rev1.0
Figure1. Package Type of XL4501
www.xlsemi.com
1
1 page  
XLSEMI
Datasheet
5A 150KHz 36V Buck DC/DC Converter With Constant Current Loop
XL4501
XL4501 Electrical Characteristics
Ta = 25℃;unless otherwise specified.
Symbol Parameter
Test Condition
System parameters test circuit figure4
VFB
Efficiency
Feedback
Voltage
ŋ
Vin = 8V to 36V, Vout=5V
Iload=0.2A to 4A
Vin=12V ,Vout=5V
Iout=4A
Min. Typ. Max. Unit
1.231 1.25 1.269 V
- 86 - %
Electrical Characteristics (DC Parameters)
Vin = 12V, GND=0V, Vin & GND parallel connect a 100uF/50V capacitor; Iout=500mA, Ta =
25℃; the others floating unless otherwise specified.
Parameters
Symbol Test Condition Min. Typ. Max. Unit
VIN operation voltage
Vin
8 36 V
VIN UVLO
Vuvlo
5V
Quiescent Supply Current
Iq
VFB =Vin
2 5 mA
Oscillator Frequency
Fosc
127 150 172 KHz
Switch Current Limit
IL
Output Power PMOS
Rdson
Constant current sense
Voltage
VCS
VFB =0
VFB=0V, Vin=12V,
ISW=5A
104.5
7A
75 100 mohm
110 115.5 mV
Rev1.0
www.xlsemi.com
5
5 Page 
XLSEMI
5A 150KHz 36V Buck DC/DC Converter With Constant Current Loop
Typical System Circuit(VIN=8V~36V,IOUT=660mA)
Datasheet
XL4501
Figure22. XL4501 System Parameters Test Circuit (VIN=8V~36V,IOUT=660mA)
Efficiency VS LED String
100
95
90
85
80
75
70 VIN=8V,IOUT=660mA
65
VIN=12V,IOUT=660mA
VIN=24V,IOUT=660mA
60 VIN=36V,IOUT=660mA
55
50
45
40
1 2 3 4 5 6 7 8 9 10
LED String(N*2W)
Figure23. XL4501 System Efficiency Curve (VIN=8V~36V,IOUT=660mA)
Rev1.0
www.xlsemi.com
11
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet XL4501.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| XL4501 | 5A 150KHz 36V Buck DC/DC Converter | XLSEMI |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |