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EST7502B 数据表(PDF) 4 Page - Shenzhen Dongfangteng Technology Co., Ltd.

部件名 EST7502B
功能描述  PC Power Supply PWM with Supervisor
PDF  7 Pages
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制造商  EST [Shenzhen Dongfangteng Technology Co., Ltd.]
网页  http://www.esthome.com
标志 EST - Shenzhen Dongfangteng Technology Co., Ltd.

EST7502B 数据表(HTML) 4 Page - Shenzhen Dongfangteng Technology Co., Ltd.

  EST7502B Datasheet HTML 1Page - Shenzhen Dongfangteng Technology Co., Ltd. EST7502B Datasheet HTML 2Page - Shenzhen Dongfangteng Technology Co., Ltd. EST7502B Datasheet HTML 3Page - Shenzhen Dongfangteng Technology Co., Ltd. EST7502B Datasheet HTML 4Page - Shenzhen Dongfangteng Technology Co., Ltd. EST7502B Datasheet HTML 5Page - Shenzhen Dongfangteng Technology Co., Ltd. EST7502B Datasheet HTML 6Page - Shenzhen Dongfangteng Technology Co., Ltd. EST7502B Datasheet HTML 7Page - Shenzhen Dongfangteng Technology Co., Ltd.  
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EST7502B
PC Power Supply PWM with Supervisor
www.esthome.com
4
2007-10-15 V2
ELECTRICALCHARACTERISTICS,TA=25℃, VCC=5V,
CHARACTERISTICS
SYMBOL
TEST CONDITION
Min.
Typ.
Max.
Unit
ERROR AMP SECTION
OPEN LOOP VOLTAGE GAIN
0.5V ~ 3.5V
75
85
dB
CROSS OVER POINT
0dB
1000
KHZ
OPNEG BIAS VOLTAGE
OPNEG OPEN
2.40
2.45
2.50
V
POWERSUPPLYREJECTIONRATIO
PSRR
45
dB
OUTPUT SECTION
OUTPUT SATURATION VOLTAGE Vdssat
Id=200mA
1.1
1.3
V
DRAIN OFF-STATE CURRENT
Idoff
Vcc=Vd=Vs=0V
2
10
uA
RISING TIME
Tr
100
200
ns
FALLING TIME
Tf
50
200
ns
PROTECTION SECTION
V33
3.8
4.1
4.3
V
V5
5.8
6.2
6.6
V
V12
4.4
4.6
4.9
V
PT
1.23
1.28
1.33
V
OVER
VOLTAGE
PROTECTION
（
OVP）
Tg.ov
510
us
V33
1.7
1.9
2.2
V
V5
2.7
3.0
3.3
V
V12
2.1
2.4
2.7
V
UNDER VOLTAGE PROTECTION
（
UVP）
Tg.uv
120
us
UVP DISABLE VOLTAGE
PT
0.55
0.62
0.68
V
UVP DELAY TIME
Td.uvp
100
280
380
ms
REMOTE ON/OFF SECTION
REM HIGH INPUT VOLTAGE
Vremh
1.8
V
REM LOW INPUT VOLTAGE
Vreml
0.7
V
REM PULL HIGH VOLTAGE
Vremo
2.0
5.25
V
REM DELAY TIME
Td on/off
40
ms
POWER GOOD SECTION
DETECT INPUT VOLTAGE
Vdet
0.68
V
PG OUTPUT PULL–UP RESISTOR
Rpup, pg
5
K
Ω
PG OUTPUT LOAD RESISTOR
Rpg
0.5
1
2
K
Ω
PG DELAY TIME
180
280
380
ms
SINK CURRENT
Ipg.sink
VPG=0.2V
10
mA
SOFT START SECTION
SINK CURRENT OF SS
Iss.sink
RT=100KΩ
15
uA
SOURCE CURRENT OF SS
Iss.source
310
uA
VCC Under Voltage Lockout(UVLO)
Start-up voltage
4.2
V
TOTAL DEVICE
STANDBY SUPPLY CURRENT
Icc
REM=5V
10
20
mA
OSCILLATION SECTION
OSCILLATION FREQUENCY
Fosc
RT=100KΩ
70
75
80
KHZ



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