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PDF WT7522 Data sheet ( Hoja de datos )
| Número de pieza | WT7522 | |
| Descripción | POWER SUPPLY PWM SUPERVISOR | |
| Fabricantes | Weltrend | |
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Hay una vista previa y un enlace de descarga de WT7522 (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
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偉詮電子股份有限公司
Weltrend Semiconductor, Inc.
WT7522
POWER SUPPLY PWM SUPERVISOR
Data Sheet
Version 1.10
April 29, 2009
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 24 號 2 樓
2F, No. 24, Industry E. 9th RD., Science-Based Industrial Park, Hsin-Chu, Taiwan
TEL:886-3-5780241 FAX:886-3-5794278.
1 page  
WT7522
Data Sheet Rev. 1.10
ELECTRICALCHARACTERISTICS,TA=25℃, VCC=5V,
CHARACTERISTICS
SYMBOL TEST CONDITION Min. Typ. Max. Unit
TOTAL DEVICE
STANDBY SUPPLY CURRENT
IVCC
PG=High
5 10
mA
ERROR AMP SECTION
OPEN LOOP VOLTAGE GAIN
UNIT GAIN BANDWIDTH
REFERENCE VOLTAGE
90 dB
1 MHz
2.46 2.5 2.54
V
PROTECTION SECTION
OVER VOLTAGE PROTECTION V33
（OVP）
V5
V12
UNDER VOLTAGE SENSE for PG V33
Low (UVS)
V5
V12
UNDER VOLTAGE PROTECTION V33
（UVP）
V5
V12
PT Protection with Delay Time
VPT
Negative Voltage Protection (NVP) VNVP
NVP Source current
INVP
OVP Debounce Time
TOVP
UVP Debounce Time
TUVP
UVS Debounce Time
TUVS
Debounce Timing of NVP
TNVP
PT Debounce Time
TPT
Note 1 : VNVP > 2.1 (TYP) => Protection
Note 1
RT=75KΩ
RT =75KΩ
RT =75KΩ
RT =75KΩ
RT =75KΩ
RT =75KΩ
REMOTE ON/OFF SECTION
PSON HIGH INPUT VOLTAGE
PSON LOW INPUT VOLTAGE
PSON to ON Debounce TIME
PSON to OFF Debounce TIME
PSON to OFF DELAY TIME
VPSONH
VPSONL
TPSON_ON
TPSON_OFF
TOFF
RT =75KΩ
RT =75KΩ
RT =75KΩ
3.9 4.1 4.3
5.8 6.1 6.5
13.9 14.5 14.9
2.5 2.8 3.0
4.0 4.3 4.5
9.4 10.1 10.4
2.0 2.6 2.8
3.0 3.6 3.9
6.0 7.2 8.0
2.02 2.4 2.66
2.0 2.1 2.2
63 67 71
0.37 0.7 1.35
0.8 2.4 3.75
0.37 1.2 1.88
1.65 3.5 5.1
1.65 3.5 5.1
V
V
V
V
V
V
V
V
V
V
V
µA
ms
ms
ms
ms
ms
2.0
30 40
7 14
1.5 2
0.8
50
21
6.3
V
V
ms
ms
ms
POWER GOOD SECTION
DET SENSE VOLTAGE
VDET
PG DELAY TIME
TPG
OUTPUT LOW VOLTAGE
VPGL
SINK CURRENT OF PG
IPG
Internal UVP Delay Time (RT=75KΩ)
(Power On Mode) (Note 3)
UVP disable Voltage (Normal Mode) VDET
RT =75 KΩ
IPG=5mA
VDET > 0.7V
VDET < 0.7V
VDET < 0.7V
0.68 0.7
200 300
50 75
200 300
0.68 0.7
0.72
400
0.5
30
100
400
0.72
V
ms
V
mA
ms
ms
V
Note 3 : When SS go High will enter Power On Mode at first and then jump to Normal Mode when PG are right
Weltrend Semiconductor, Inc.
Page 5
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet WT7522.PDF ] | |
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