Weltrend WT7510-N080WT-12, WT7510-NN080WT-12, WT7510-S080WT-12, WT7510-SN080WT-12 Schematic [ru]
偉詮電子股份有限公司
偉詮電子股份有限公司
偉詮電子股份有限公司偉詮電子股份有限公司
Weltrend Semiconductor, Inc.
`
WT7510
PC POWER SUPPLY SUPERVISOR
Data Sheet
REV. 2.31
April 04, 2007
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:886-3-5794278.5770419
Email:support@weltrend.com.tw
WT7510
5
4
V33
ORDERING INFORMATION
Rev. 2.31
GENERAL DESCRIPTION
The WT7510 provides protection circuits, power good output (PGO), fault protection latch (FPL_N),
and a protection detector function (PDON_N) control. It can minimize external components of switching
power supply systems in personal computer.
The Over Voltage Detector (OVD) monitors 3.3V, 5V, 12V input voltage level. The Under Voltage
Detector (UVD) monitors 3.3V, 5V input voltage level. When OVD or UVD detect the fault voltage level,
the FPL_N is latched HIGH and PGO go low. The latch can be reset by PDON_N goo HIGH. There is
2.4 ms delay time for PDON_N turn off FPL_N.
When OVD and UVD detect the right voltage level, the power good output (PGO) will be issue.
FEATURES
• The Over Voltage Detector (OVD) monitors 3.3V, 5V, 12V input voltage level.
• The Under Voltage Detector (UVD) monitors 3.3V, 5V input voltage level.
• Both of the power good output (PGO) and fault protection latch (FPL_N) are Open Drain Output.
• 75 ms time delay for UVD.
• 300 ms time delay for PGO.
• 38 ms for PDON_N input signal De–bounce.
• 73 us for internal signal De–glitches.
• 2.4 ms time delay for PDON_N turn-off FPL_N.
PIN ASSIGNMENT AND PACKAGE TYPE
PDON_N
PGI
GND
FPL_N
1
2
3
※ The Top-Side Marking would be added a dot（●）
PACKAGE 8–Pin Plastic DIP 8–Pin Plastic SOP
WT7510–N080WT–12 WT7510–S080WT–12
Lead–Free（（（（Pb））））
PIN DESCRIPTION
Pin No. Pin Name TYPE
1 PGI I power good input pin
2 GND P Ground
3 FPL_N O fault protection latch output pin(open drain output)
4 PDON_N I protection detector function ON/OFF control input pin
5 V33 I 3.3V input pin
6 V5 I 5V input pin
7 VCC I Supply voltage / 12V input pin
8 PGO O power good output pin(open drain output)
8
7
6
WT7510–NN080WT–12 WT7510–SN080WT–12
PGO
VCC
V5
（●）in the right side for lead-free package.
（●）（●）
Description
Weltrend Semiconductor, Inc.
Page 2
WT751201A_WT7510 BLOCK DIAGRAM
BLOCK DIAGRAM
VCC
150uA
Power On Reset
VCC Low Voltage
POR
LVRST
WT7510
Rev. 2.31
Clock
Generator
CLK
PWR
3.6V
PDON_N
PWR CLK
CLK
38ms
debounce
-
UN
1.2V
+
-
OV
+
-
UN
+
-
OV
+
-
OV
+
-
UN
+
V33
V5
VCC
PGI
RST
PWRCLK
75 ms
clr
delay
CLK RST
debounce
73us
2.4ms
clr
delay
PWR
CLK
clr
CLK RST
73us
debounce
300ms
delay
R
S Q
FPL_N
VCC
PGO
RECOMMENDED OPERATING CONDITIONS
Parameter Conditions Min. Typ. Max. Unit
Supply voltage, VCC 4 12
Input voltage PDON_N, V5, V33, PGI 7 V
FPL_N 15 V Output voltage
PGO 7 V
Operating temperature -40 125
Output sink current
FPL_N 30 mA
PGO 10 mA
Supply voltage rising time 1 ms
Weltrend Semiconductor, Inc.
Page 3
15 V
℃
WT7510
FPL_N go low &
Rev. 2.31
ELECTRICAL CHARACTERISTICS,
at Ta=25°°°°C and VCC=5V
.
Over Voltage Detection
Parameter Condition Min. Typ. Max. Unit
Over voltage threshold
I
LEAKAGE
Leakage current (FPL_N) V(FPL_N) = 5V 5 uA
PGI and PGO
Parameter Condition Min. Typ. Max. Unit
Input threshold voltage(PGI) 1.16 1.20 1.24 V
I
LEAKAGE
Leakage current(PGO) PGO = 5V 5 uA
VOL Low level output voltage(PGO) 0.4 V
PDON_N
Parameter Condition Min. Typ. Max. Unit
Input pull-up current PDON_N= 0V 150 uA
High-level input voltage 2.0 V
Low-level input voltage 0.8 V
TOTAL DEVICE
Parameter Condition Min. Typ. Max. Unit
Icc Supply current PDON _N= 5V 1 mA
Vcc low voltage 3 V
SWITCHING CHARACTERISTICS, Vcc=5V
Parameter Condition Min. Typ. Max. Unit
t
db1
t
dleay1
t
db2
De-bounce time (PDON_N) 32 38 61 mS
Delay time (PGI to PGO) 200 300 490 mS
De-bounce time (PDON_N) 32 38 61 mS
tg De-glitch time 63 73 120 uS
t
PDON_N to FPL_N delay time t
delay2
t
Internal UVD delay time
delay3
V33 3.7 3.9 4.1 V
V5 5.7 6.1 6.5 V
Vcc / V12 12.8 13.4 13.9 V
I
10mA 0.3 VOL Low level output voltage (FPL_N)
sink
I
30mA 0.7
sink
V
V33 2.55 2.69 2.83 V Under voltage threshold
V5 4.1 4.3 4.47 V
+2.0 t
db2
+2.4 t
db2
+3.8 mS
db2
65 75 122 mS
every time PGI > 1.2V
Weltrend Semiconductor, Inc.
Page 4
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