Document
LP3773/4/5
LP3773/4/5
【/PSR】
WUXI CHIP HOPE MICRO-ELECTRONICS LTD.
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http://www.chip-hope.com V1.4
LP3773/4/5
TABLE OF CONTENTS
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http://www.chip-hope.com V1.4
LP3773/4/5
LP3773/4/5/,VCBO 750V。(PFM)(DCM) 。
LP3773/4/5,(CV / CC) 。,。LP3773/4/5 ,30mW。
LP3773/4/5,, FB,12%, 。
■ 、 ■ 30mW ■ ■ ■ , ■ ■ ■ ■ ■ ■
LP3773
LP3773/4/5 SOP-7
LP3772-1+ 1300X
LP3773/4/5
■ 、、PDA、MP3 、 。 ■ LED ■ RCC ■
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LP3773/4/5
1 : LP3773/4/5
2: LP3773/4/5 Pin Assignments(SOP-7)
Pin 1 2
3 4 5、6 7
Pin Name FB CS
VCC E C
GND
Description
CV CC CS IC 。 CS , 。 VCC 。 IC , ESR VCC E C GND IC 。, BJT 。 PCB
1
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LP3773/4/5
3: LP3773/4/5 Block Diagram
( 1)
Parameter
Supply Voltage CS to GND FB Input Voltage Source Current at OUT Pin Operating Junction Storage Temperature Lead Temperature (Soldering,
Thermal Resistance
ESD (Human Body Model)
Symbol
VCC Vcs VFB ISOURCE TJ TST TLEAD
JA
2
Value
-0.3 to 30 -0.3 to 7 -40 to 8.5 Internally Limited
150 -65 to 150
300
250
2000
Unit
V V V A ºC ºC ºC
ºC/W
V
1:,。, ,。 。, ,。
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http://www.chip-hope.com V1.4
LP3773/4/5
(LP3773/4/5)
VCC =15V, TA=25°C, unless otherwise specified.
Parameter
Symbol
Conditions
UVLO SECTION Startup Threshold Minimal Operating Voltage
VST VUVLO
STANDBY CURRENT SECTION
Startup Current
VCC=VTH (ST)-1V, IST Before Startup
Operating Current ICC Static current
DRIVE OUTPUT SECTION
Output Current
Sink Source
Isink ISOURCE
Apply 1V @OUT pin
Maximum Off
TOFFMAX
CURRENT SENSE SECTION
Current Sense
Threshold Voltage at CC Mode
VCS1
Current Sense Threshold Voltage at light load
VCS2
Leading Edge Blanking
TLEB
FEEDBACK INPUT SECTION
The minimum POWER SWITCH
i
Input Resistance of FB Pin
RFB
VFB=4V
Feedback
VFB
LINE COMPENSATION SECTION
Line Compensation VCOMP_LINE
Voltage
Vfb=-10V,RLINE=30K Ω
(Figure.4)
CABLE COMPENSATION SECTION
Sink Current of FB Pin
Ifb
100% output current
Min
13 3.5 0 150 24
1 3.94
Typ
15.5 4
0.2 500 200 30 18
500 330 500
1.6 4
120
100
Max
18 4.5 0.6 330 40
2 4.06
Unit
V V
µA
mA mA ms
mV mV ns
MΩ V
mV
µA
PROTECTION SECTION
Over Voltage Max. On Time of Primary Side
VFBOVP TonpMAX
3
6 6.5 7 25
V uS
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LP3773/4/5
LP3773/4/5
PARAMETER
TEST SYMBOL
CONDITIONS
Collect-Base Cutoff Current Collect-Emitter Cutoff Current Emitter- Base Cutoff Current Collector- Base Voltage Collector-Emitter Voltage
I CBO I CEO I EBO V CBO V CEO
VCE = 700V IE = 0 VCE = 400V IB = 0 VEB = 9V IC = 0
IC = 0.1mA
IC = 1mA
Emitter-Base Voltage
VEBO IE = 0.1mA
VALUES MIN TYP MAX
- - 20 - - 40 - - 10 750 450 9
DC Current Gain
hFE VCE = 5V, IC = 0.2A 15 - 30
Collector-Emitter Saturation Voltage
Base-Emitter Saturation Voltage
Current Gain-Bandwidth Product
VCESAT IC =1A, IB = 0.25A
-
- 0.9
VBESAT IC =1A, IB = 0.25A
-
- 1.2
VCE = 10V ; IC =
Fr 0.1A
5.0 -
f = 1MHz
-
Fall Time
tr UI9600, Ic=0.25A
1
: 1.47*1.47mm
UNIT μA μA μA V V V
V V MHz uS
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LP3773/4/5
LP3773 LP3774 LP3775
Vin:90-264Vac 50/60Hz
6.0W(5V/1200mA) 4.5W(5V/900mA) 2.5W(5V/500mA)
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Vin:230Vac 50Hz 7.5W(5V/1500mA) 6.0W(5V/1200mA) 3.5W(5V/700mA)
http://www.chip-hope.com V1.4
LP3773/4/5
SOP-7
SOP-7
LP377X
XXXXXXXX
: Logo;
LP377X:, X=3 1.47*1.47mm ; X=4 1.18*1.18mm ; X=5 0.83*0.83mm ;
XXXXXXXX: Wafer ID。
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