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WT7502V Schematic ( PDF Datasheet ) - Weltrend Semiconductor

Teilenummer WT7502V
Beschreibung PC POWER SUPPLY SUPERVISOR
Hersteller Weltrend Semiconductor
Logo Weltrend Semiconductor Logo 




Gesamt 11 Seiten
WT7502V Datasheet, Funktion
偉詮電子股份有限公司
Weltrend Semiconductor, Inc.
`
WT7502V
PC POWER SUPPLY SUPERVISOR
Data Sheet
REV. 1.01
November 30, 2010
The information in this document is subject to change without notice.
©Weltrend Semiconductor, Inc. All Rights Reserved.
新竹市科學工業園區工業東九路242
2F, No. 24, Industry E. 9th RD., Science-Based Industrial Park, Hsin-Chu, Taiwan
TEL:886-3-5780241 FAX:886-3-5794278.5770419






WT7502V Datasheet, Funktion
WT7502V
Rev. 1.01
TOTAL DEVICE
Parameter
Icc Supply current
Vcc start-up voltage
Vcc stop voltage after start-up
Condition
PSONB= 5V
Min.
Typ. Max. Unit
1 mA
3.4 V
3.0 V
SWITCHING CHARACTERISTICS, Vcc=5V
Parameter
Condition
Min. Typ. Max.
tdb1
tdelay1
tdb2
tg1
tg2
tg3
tdelay2
tdelay3
De-bounce time (PSONB)
Delay time (PGI to PGO)
De-bounce time (PSONB)
De-glitch time for PGI
De-glitch time for UVD
De-glitch time for OVD
PSONB to FPOB delay time
Internal UVD delay time
24 38 52
200 300 400
24 38 52
47 73 100
47 73 100
35 55 75
tdb2+2.0 tdb2+2.4 tdb2+3.8
After FPOB go low or
49
75 100
every time PGI > 0.95V
Unit
mS
mS
mS
uS
uS
uS
mS
mS
APPLICATION CIRCUIT
+5VSB
R5=300
PSONB
10K
0.01uF
+5VSB
PGI PGI
GND
FPOB
PSONB
+5V
1K
PGO
VCC
V5 +5V
V33 +3.3V
R4=100
+5VSB
D1
PGO
+5VSB
+12V
NOTE1The series resistor R5 at PSONB can not be omitted.R5 = 300Ω is suggested
NOTE2The series resistor R4 = 100Ω and diode D1 at PGO is suggested.
Weltrend Semiconductor, Inc.
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