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PDF 3513 Data sheet ( Hoja de datos )
| Número de pieza | 3513 | |
| Descripción | PC POWER SUPPLY SUPERVISOR | |
| Fabricantes | Unisonic Technologies | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de 3513 (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
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UNISONIC TECHNOLOGIES CO., LTD
3513
PC POWER SUPPLY
SUPERVISOR
CMOS IC
DESCRIPTION
The UTC 3513 is designed to provide protection circuits,
power good output (PGO) indicator, fault protection output
(FPOB) and a PSONB control for PC switching power supply
systems.
The protection circuits include over voltage protection
(OVP), under voltage protection (UVP) and over current
protection(OCP) monitoring for 3.3V, 5V and two 12V.
When 3.3V, 5V or 12V voltage is decreasing to 2.68V, 4.3V
and 9.9V respectively, the under voltage protection (UVP)
function will be enabled. FPO will be set to high to turn off the
PWM controller IC. Toggling the PSONB from low to high will
reset the fault protection latch.
The voltage difference across external current shunt is used
for OCP functions. An external resistor can be used to adjust
protection threshold.
The power supply is turned on after 38mS delay time when
PSONB signal is set from high to low. To turn off power
supply, PSONB signal is set from low to high with the delay
time 38mS. The PGI circuitry provides a power-down warning
signal for PGO. When PGI input is lower than the internal
1.20V reference voltage, PGO signal is pulled low.
The device is available in two versions: UTC 3513E/3513F.
Specially, fan control function is available in OTP/FC pin of
UTC 3513F.
* Pb-free plating product number: 3513EL/3513FL
FEATURES
* OVP/UVP monitors 3.3V, 5V, 12V input voltage level.
* OCP monitors IS33, IS5, IS12 input current sense.
* Fault protection output (FPOB) with Open Drain Output
stage.
* Power good output (PGO) with Open Drain Output stage.
* 38ms de-bounce time for PSONB input signal.
* 300ms time delay from PGI to PGO.
* 2.4ms time delay for PSONB to turn off FPOB.
www.DataSheet4U.com
www.unisonic.com.tw
Copyright © 2007 Unisonic Technologies Co., Ltd
1 of 12
QW-R502-129.A
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3513
BLOCK DIAGRAM
PGI
Bandgap
Reference
VREF=1.2V
IS33
VS33
IS12A
VS12A
IS12B
VS12B
IS5
VS5
+- UN
V12A
+
-
IREF*8
+
-OV
+
-UN
V12A
+
-
IREF*8
+-OV
+-UN
V12A
+
-
IREF*8
+
-OV
+-UN
V12A
+
-
IREF*8
+
-OV
+-UN
www.DataSheet4U.com
RST
73 µs
debounce
300ms
clr
delay
CMOS IC
VDD
PGO
73 µs
debounce
RQ
SQ
FPOB
Power On Reset
Internal
PWR Power
VCCI=3.6V
2.4ms
delay
75ms/ 300ms
delay
38 ms
debounce
PSONB
OTP
2.4V~3.2V
PWR
OSC
CLK
V12A
VREF=1.2V
+
-
RI
Figure 1. 3513E
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
5 of 12
QW-R502-129.A
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3513
TYPICAL TIMMING DIAGRAM
1) PGI (UNDER-VOLTAGE):
CMOS IC
2) V33, V5, V12A, V12B (UNDER-VOLTAGE) or IS33, IS5, IS12A, IS12B (OVER-CURRENT):
www.DataSheet4U.com
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
11 of 12
QW-R502-129.A
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet 3513.PDF ] | |
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