SG6105 查看數據表（PDF） - Unspecified

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SG6105

Power Supply Supervisor + Regulator + PWM

Unspecified 

Power Supply Supervisor + Regulator + PWM

ORDERING INFORMATION

Part Number

Package

SG6105D

20-Pin DIP

Product Specification

SG6105

PIN DESCRIPTIONS

Name Pin Type

VCC

20

Supply

PG

10

Logic output

V33

2

Analog input

V5

3

Analog input

V12

7

Analog input

OPP

4

Analog input

PSON

1

Logic input

NVP

UVAC

COMP

IN

SS

6

Analog input

5

Analog input

16

Analog output

17

Analog input

18

Analog input

OP1/OP2 9/8

FB1

14

VREF1

13

FB2

11

VREF2

12

RI

19

GND

15

Analog output

Analog output

Analog input

Analog output

Analog input

Program.

Analog input

Supply

Function

Supply voltage. 4.5V ~ 5.5V. It is connected to 5V-standby.

Power Good logic output, 0 or 1 (open-collector). PG = 1 means that the power is good for operation.

The PG delay is 300 msec.

3.3V over-voltage/under-voltage control sense input.

5V over-voltage/under-voltage control sense input.

12V over-voltage/under-voltage control sense input.

Over-power sense input. This pin is connected to driver transformer or the output of current

transformer. When not in use, this pin should be grounded.

Remote On/Off logic input forʳCPU or controller. Turn on/off the PWM Output after the 7.5 msec / 26

msec delay.

PSON = 0 means that the main SMPS is operational.

PSON =1 means that the main SMPS is off and the latch is reset.

The protection input for negative output, such as –12V and/or –5V. Trip voltage = 2.1V.

AC fail detection, detect main AC voltage under-voltage and/or failure.

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 8uA and

the voltage is clamped at 2.5V.

The totem-pole output drivers of push-pull PWM. The output are enabled (low) only when the NAND

gate inputs are high, the maximum duty cycle on an output (OP1 or OP2) is 46%.

Output for first converter regulation loop.

Reference comparison input for first converter regulation loop. 2.5V.

Output for second converter regulation loop.

Reference comparison input for second converter regulation loop. 2.5V.

Connected to external resistor for the reference setting.

RI = 75k ohms.

Ground.

©System General Corp.

-2-

Version 2.3(IRO33.0011.B0)

www.sg.com.tw

June 19, 2003

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