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零件编号 | L2273 | ||
描述 | Current Mode PWM Controller | ||
制造商 | LIZE | ||
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1 Page
Shenzhen LIZE Electronic Technology Co., Ltd
Current Mode PWM Controller
L2273
SPECIFICATION
L2273
Current Mode PWM Controller
VERSION 1.0
reserves the right to change this documentation without prior notice
Shenzhen LIZE Electronic Technology Co., Ltd
Current Mode PWM Controller
L2273
Recommended Operating Conditions
Symbol
VDD
Parameter
Supply Voltage Vcc
Min. Max.
8 to 25
Unit
V
TOA Operating Ambient Tmperature
-20 to 85
℃
Electrical Characteristics(TA = 25 ℃, if not otherwise noted)
Symbol
Parameter
Conditions
Value
Unit
Min Typ Max
Idd_startup
Idd
Supply Voltage(Vdd Pin)
VDD start up current
VDD=12.5V,RI=100K
VDD
Operatio current
VDD=16V
RT=100KΩ, FB=3V
VDD under voltage
UVLO(ON)
lockout enter
VDD under voltage
UVLO(OFF)
lockout exit
VDD zener clamp
VDD_clamp
voltage
Idd=10mA
Voltage Feedback (FB Pin)
AVCS
PWM input gain
VFB/ VSENSE
VFB_open VFB open loop voltage
IFB_short
VFB_burst
VTH_PL
TD_PL
FB pin short current
Burst mode voltage
Power limiting FB
threshold voltage
Power limiting
debounce time
DC_MAX
Maximum duty cycl
Short FB pin to GND and
measure current
Iout=-10mA
VDD=18V,SENSE=0V
RI=100KΩ,FB=3V
3 10 uA
1.5 mA
7.0 8.0 10.2 V
13 14 16.5 V
27 29 31 V
2 V/V
5.7 V
0.05 0.1 0.15 mA
1.1 V
3.7 V
65 mS
75 %
reserves the right to change this documentation without prior notice
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页数 | 15 页 | ||
下载 | [ L2273.PDF 数据手册 ] |
零件编号 | 描述 | 制造商 |
L2273 | Current Mode PWM Controller | LIZE |
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