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PDF WT7520 Data sheet ( Hoja de datos )
| Número de pieza | WT7520 | |
| Descripción | PC Power Supply PWM Cupervisor | |
| Fabricantes | Weltrend | |
| Logotipo |  |
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 1. PC Power Supply PWM Cupervisor  Hay una vista previa y un enlace de descarga de WT7520 (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
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Weltrend Semiconductor, Inc.
WT7520
PC POWER SUPPLY PWM SUPERVISOR
Data Sheet
REV. 0.9
February 21, 2005
The information in this document is subject to change without notice.
©Weltrend Semiconductor, Inc. All Rights Reserved.
2F, No. 24, Industry E. 9th RD., Science-Based Industrial Park, Hsin-Chu, Taiwan
TEL:886-3-5780241 FAX:886-3-5794278.5770419
Email:[email protected]
1 page  
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WT7520
Data Sheet Rev. 0.90
ELECTRICALCHARACTERISTICS,TA=25 VCC=5V,
CHARACTERISTICS
SYMBOL TEST CONDITION
DEAD TIME CONTROL SECTION
INPUT THRESHOLD VOLTAGE
Vthdt
ERROR AMP SECTION
CLOSE LOOP VOLTAGE GAIN
CROSS OVER POINT
OPNEG BIAS VOLTAGE
OUTPUT SECTION
OUTPUT SATURATION VOLTAGE Vdssat
DRAIN OFF-STATE CURRENT
Idoff
RISING TIME
Tr
FALLING TIME
Tf
PROTECTION SECTION
OVER VOLTAGE PROTECTION OVP V33
V5
V12
PT
UNDER VOLTAGE PROTECTION V33
UVP V5
V12
UVP DISABLE VOLTAGE
PT
UVP DELAY TIME
Td.uvp
REMOTE ON/OFF SECTION
REM HIGH INPUT VOLTAGE
Vremh
REM LOW INPUT VOLTAGE
Vreml
REM PULL HIGH VOLTAGE
Vremo
REM DELAY TIME
Trem
REM OFF DELAY TIME
Toff
POWER GOOD SECTION
DETECTING INPUT VOLTAGE
Vdet
PG OUTPUT PULL–UP RESISTOR Rpup, pg
PG OUTPUT LOAD RESISTOR
Rpg
PG DELAY TIME
OUTPUT SATURATION VOLTAGE Vsat.pg
SOFT START SECTION
SINK CURRENT OF SS
Is s.sink
SOURCE CURRENT OF SS
Iss.source
TOTAL DEVICE
STANDBY SUPPLY CURRENT
Icc
OSCILLATION SECTION
OSCILLATION FREQUENCY
Fosc
ZERO DUTY CYCLE
MAX. DUTY CYCLE
0.5V ~ 3.5V
0dB
OPNEG OPEN
Id=200mA
Vcc=Vd=Vs=0V
Ipg=10mA
RT=120K
Min. Typ. Max.
3.0 3.3
0.1
65
320
2.38 2.45 2.52
1.1 1.3
2 10
100 200
50 200
3.8 4.1 4.3
5.8 6.2 6.6
4.41 4.64 4.90
1.2 1.25 1.3
1.78 1.98 2.18
2.70 3.00 3.30
2.11 2.37 2.63
0.55 0.62 0.68
100 280 500
2.0
0.8
2.0 5.25
30 36 42
3.5 4.5 5.5
0.55 0.62 0.68
5
0.5 1
2
150 280 350
0.2 0.4
13
700
10 20
50 70
Unit
Ω
Ω
Weltrend Semiconductor, Inc.
Page 5
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet WT7520.PDF ] | |
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