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PDF XL3005 Data sheet ( Hoja de datos )
| Número de pieza | XL3005 | |
| Descripción | 5A 220KHz 36V Buck LED Constant Current Driver | |
| Fabricantes | XLSEMI | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de XL3005 (archivo pdf) en la parte inferior de esta página. Total 15 Páginas | ||
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5A 220KHz 36V Buck LED Constant Current Driver
Datasheet
XL3005
Features
n Wide 8V to 36V Input Voltage Range
n Output Current Sence Voltage is 0.21V
n Maximum Duty Cycle 100%
n Minimum Drop Out 0.3V
n Fixed 220KHz Switching Frequency
n 5A Constant Output Current Capability
n Internal Optimize Power MOSFET
n High efficiency
n Excellent line and load regulation
n Built in thermal shutdown function
n Built in current limit function
n Built in output short protection function
n Available in TO-263 package
Applications
n Buck constant current driver
n Monitor LED Backlighting
n General purpose LED lighting
General Description
The XL3005 is a 220 KHz fixed frequency
PWM buck (step-down) LED constant current
driver, capable of driving a 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 over
current protection function is built inside.
When short protection function happens, the
operation frequency will be reduced from
220KHz to 60KHz. An internal compensation
block is built in to minimize external
component count.
Figure1. Package Type of XL3005
Rev 1.1
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1
1 page  
5A 220KHz 36V Buck LED Constant Current Driver
Datasheet
XL3005
XL3005 Electrical Characteristics
Ta = 25℃;unless otherwise specified.
Symbol Parameter
Test Condition
System parameters test circuit figure4
VCS
Current
Sense
Voltage
Vin = 8V to 36V, Vout=6.4V
Iload=0.1A to 4A
ŋ Efficiency
Vin=12V ,Vout=10V
Iout=0.3A
ŋ Efficiency
Vin=24V ,Vout=16V
Iout=1A
ŋ Efficiency
Vin=36V ,Vout=19V
Iout=1A
Min. Typ. Max. Unit
203.7 210 216.3 mV
- 95 - %
- 96 - %
- 95 - %
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
Input operation voltage
Vin
8 36 V
VIN UVLO
Vin_uvlo
5V
Quiescent Supply Current
Oscillator Frequency
Iq
Fosc
VCS=Vin
2.1
187 220
5
253
mA
KHz
Output Short Frequency
Fosp
48 60 72 KHz
Switch Current Limit
IL VCS=0
7A
Max. Duty Cycle
Output Power PMOS
DMAX
Rdson
VCS=0V
VCS=0V, Vin=12V,
ISW=5A
100 %
60 80 mohm
Rev 1.1
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5
5 Page 
5A 220KHz 36V Buck LED Constant Current Driver
Typical System Application (VIN=8V~36V, IOUT=1540mA)
Datasheet
XL3005
Figure19. XL3005 System Parameters Test Circuit (VIN=8V~36V, IOUT=1540mA)
Efficiency VS LED String
100.0
97.5
95.0
92.5
90.0
87.5
85.0
82.5 VIN=8V,IOUT=1540mA
80.0
77.5
VIN=12V,IOUT=1540mA
VIN=24V,IOUT=1540mA
VIN=36V,IOUT=1540mA
75.0
72.5
70.0
67.5
65.0
62.5
60.0
1 2 3 4 5 6 7 8 9 10
LED String(N*5W)
Figure20. XL3005 System Efficiency Curve
Rev 1.1
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11
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet XL3005.PDF ] | |
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