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EST7610 Datasheet Preview

EST7610 Datasheet

PC Power Supply Supervisor

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EST7610 PC Power Supply Supervisor
GENERAL DESCRIPTION
The EST7610 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 go HIGH. There is
www.DataSheet4U2..c4omms 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
PGI
GND
FPL_N
PDON_N
1
2
3
4
8 PGO
7 VCC
6 V5
5 V33
ORDERING INFORMATION
PACKAGE
MARKING
PACKING
8–Pin Plastic DIP
EST7610A
Tube
8–Pin Plastic SOP
EST7610AS
Tube or Tape&Reel
PIN DESCRIPTION
Pin No. Pin Name TYPE
Description
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)
WWW.ESTHOME.COM
1
2006-01-A




EST

EST7610 Datasheet Preview

EST7610 Datasheet

PC Power Supply Supervisor

No Preview Available !

FUNCTION TABLE
PGI
< 0.95V
< 0.95V
< 0.95V
0.95 < PGI < 1.2
0.95 < PGI < 1.2
www.DataSheet4U0..c9o5m < PGI < 1.2
PGI > 1.2
PGI > 1.2
PGI > 1.2
x
x = don’t care
PDON_N
L
L
L
L
L
L
L
L
L
H
EST7610 PC Power Supply Supervisor
UV
OV
FPL_N
PGO
no no L
L
no yes H
L
yes no
L
L
no no L
L
no yes H
L
yes no
H
L
no no L H
no yes H
L
yes no
H
L
x xHL
BLOCK DIAGRAM
EN0158A_WT7510 BLOCK DIAGRAM
VCC
150uA
Power On Reset POR
LVRST
VCC Low Voltage
Clock
Generator
CLK
PWR
3.6V
PDON_N
V33
V5
VCC
PGI
CLK PWR
38ms
debounce
-
+
UN
-
+
OV
-
+
UN
-
+
OV
-
+
OV
-
+
UN
1.2V
+
-
0.95V
RST
CLK
2.4ms
clr
delay
CLK PWR
75 ms
clr
delay
PWR
CLK RST
73us
debounce
R
SQ
CLK RST
73us
debounce
CLK
300ms
clr
delay
FPL_N
VCC
PGO
WWW.ESTHOME.COM
2
2006-01-A


Part Number EST7610
Description PC Power Supply Supervisor
Maker EST
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