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PDF SC6105 Data sheet ( Hoja de datos )
| Número de pieza | SC6105 | |
| Descripción | VOLTAGE MODE PWM POWER SUPPLY | |
| Fabricantes | Silan Semiconductors | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de SC6105 (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
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SC6105
VOLTAGE MODE PWM POWER SUPPLY WITH BUILT-IN SUPERVISOR,
PROTECTION AND REGULATION
DESCRIPTION
The SC6105 is a switching mode power supply controller for
computers. It can regulator the output voltages by providing PWM
signals to drive a transformer. It monitors and protects the
3.3V/±5V/±12V outputs. Two internal TL431 shunt regulators provide
stable reference voltage for 3.3V and 5V-standby regulator. Remote
ON/OFF control, power good circuitry, over voltage and under
voltage protection circuitry and over power protection circuitry is
implemented.
DIP-20-300-2.54
FEATURES
* Over voltage protection for 3.3V/5V/12V
* Under voltage protection for 3.3V/±5V/±12V
* Over power protection
* Short circuit protection
* AC-input under voltage protection
* Power good circuitry
* PSON for remote controller
* Delay time for PSON or PG signals
* Two shunt regulators for 3.3V and 5V-standby
* soft start and maximum 93% duty cycle
APPLICATIONS
* Switching mode power supply for
computers.
ORDERING INFORMATION
Part
SC6105B
Package
DIP-20-300-2.54
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
REV:1.4 2008.04.17
Page 1 of 9
1 page  
SC6105
(Continued)
Pin No.
8
9
10
11
12
13
14
15
16
17
18
19
20
Pin Name
OP2
OP1
PG
FB2
VREF2
VREF1
FB1
GND
COMP
IN
SS
RI
VCC
Description
The totem-pole output drivers of push-pull PWM. The maximum duty cycle on an
output (OP1 or OP2) is 46%.
The totem-pole output drivers of push-pull PWM.
Power Good logic output, 0 or 1 (open-collector). PG=1 means that the power is
good for operation.
Output for second converter regulation loop.
Reference comparison input for second converter regulation loop. 2.5V.
Reference comparison input for first converter regulation loop. 2.5V.
Output for first converter regulation loop.
Ground.
Error amplifier output and the input of the PWM comparator.
The negative input of error amplifier. The positive input of error amplifier is a 2.5V
reference voltage.
The soft-start. It is settable through external capacitor. The current source output at
this pin is 5.7uA and the voltage is clamped at 2.5V.
Connected to external resistor for the reference setting.
Supply voltage. It is connected to 5V-standby.
FUNCTION DESCRIPTION
SC6105 have functions below: AC Power-down Detection, Over Power Protection (OPP), Negative Voltage
Protection, Over-voltage and under-voltage protection, Power-down warning for power good signal, Power good
signal and power-fail lockup, Remote on/off control, Complete pulse width modulation (PWM) control circuitry,
On-chip oscillator, Programmable Soft-Start and so on.
TIMING DIAGRAM
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
REV:1.4 2008.04.17
Page 5 of 9
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet SC6105.PDF ] | |
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