SG6105D ETC, SG6105D Datasheet

SG6105D

Manufacturer Part Number

SG6105D

Description

Manufacturer

ETC

Datasheet

1.SG6105D.pdf (13 pages)

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

SG6105D

Manufacturer:

INTERSIL

Quantity:

13 861

Company:

Meier Automation Equipment Co., Limited

Part Number:

SG6105DZ

Manufacturer:

Quantity:

20 000

Company:

Allchip Electronic(HK) Limited

Part Number:

SG6105DZ

Manufacturer:

SYSTEMGEN

Quantity:

18 442

Current page: 1 of 13
Download datasheet (520Kb)

Power Supply Supervisor + Regulator + PWM

FEATURES

APPLICATIONS

as:

ATX

MARKING DIAGRAMS

©System General Corp.

Version 2.3(IRO33.0011.B0)

PC half-bridge (or 494) power supply supervisor +

two 431 + PWM

High integration & few external components

Over-voltage protection for 3.3V, 5V and 12V

Under-voltage protection for 3.3V, 5V and 12V

Under-voltage protection for –12V and/or –5V

Over-power and short-circuit protection

Power-down warning circuitry

Power good circuitry

Delay time for PSON and PG signal

Remote ON/OFF function

On-chip oscillator and error amplifier

Two shunt regulator for 3.3V and 5V-Standby

Latching PWM for cycle-by-cycle switching

Push-pull PWM operation and totem pole outputs

Soft-start and maximum 93% duty cycle

Switching mode power supply for Computers, such

T: D = DIP

XXXXXXX: Wafer Lot

YY: Year; WW: Week

V: Assembly Location

XXXXXXXYYWWV

NLX

SG6105T

SFX (micro-ATX)

- 1 -

DESCRIPTION

power supply for desktop PCs. It provides all the

functions necessary to monitor and control the output of

the power supply. Remote ON/OFF control, power good

circuitry, some protection features against over-voltage

and over-power are implemented. It directly senses all the

output rails for OVP without the need of external dividers.

An innovated AC-signal sampling circuitry provides a

sufficient power-down warning signal for PG. A built-in

timer generates accuracy timing for control circuit

including the PS-off delay. The cycle-by-cycle PWM

switching prevents the power transformer from the

saturation and ensures the fastest response for the

short-circuit protection which greatly reduce the stress for

power transistors. Two internal precision TL431 shunt

regulators provide stable reference voltage and driver for

3.3V and 5V-standby regulation. Utilizing minimum

number of external components, the SG6105 includes all

of the functions for push-pull and/or half-bridge topology,

decreasing the production cost and PCB space, and

increasing the MTBF for power supply.

PIN CONFIGURATION

SG6105 controller is designed for switching mode

PSON

OPP

UVAC

NVP

OP2

OP1

V33

V12

Product Specification

FB1

FB2

VCC

COMP

GND

VREF1

VREF2

www.sg.com.tw

June 19, 2003

SG6105

Related parts for SG6105D

SG6105D Summary of contents

Page 1

Power Supply Supervisor + Regulator + PWM FEATURES PC half-bridge (or 494) power supply supervisor + two 431 + PWM High integration & few external components Over-voltage protection for 3.3V, 5V and 12V Under-voltage protection for 3.3V, 5V and 12V ...

Page 2

... Power Supply Supervisor + Regulator + PWM ORDERING INFORMATION Part Number Package SG6105D 20-Pin DIP 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 6 Analog input ...

Page 3

Power Supply Supervisor + Regulator + PWM BLOCK DIAGRAM V5 V33 V12 Detector OV Protector UV Protector COMP _ 5V 3.2V + 64uA COMP _ 2.1V Delay 7msec NVP 6 + Buffer COMP _ 2.4V 4 ...

Page 4

Power Supply Supervisor + Regulator + PWM TIMING DIAGRAM VCC PSON 3.3V,5V,12V t PSON(ON) NVP SS(on/off VCC PSON UVAC OPP SS(on/off) PG ©System General Corp. Version 2.3(IRO33.0011.B0) t PSON(OFF) t PSOFF Voltage < V UVAC - 4 ...

Page 5

Power Supply Supervisor + Regulator + PWM ABSOLUTE MAXIMUM RATINGS Symbol Parameter V DC Supply Voltage at Pin Shunt Regulator Output at Fb1, Fb2 Pins FB I Output Current at PG, Fb1, Fb2 Pins OUT P Power ...

Page 6

Power Supply Supervisor + Regulator + PWM Shunt Regulator (FB1, VREF1, FB2, VREF2) Symbol Parameter V Reference Voltage REF *2 V Deviation of V Over Load Current DEV, I REF * 2 V Deviation of V Over Temperature DEV, T ...

Page 7

Power Supply Supervisor + Regulator + PWM Comparator Section Symbol Parameter DC Duty Cycle PWM Output Section (OP1, OP2) Symbol Parameter V Output Voltage Low OL V Output Voltage High OH R Output Impedance ©System General ...

Page 8

Power Supply Supervisor + Regulator + PWM APPLICATION 1 MAIN Transformer 3.3V 5Vsb STBY Transformer + Vdd ©System General Corp. Version 2.3(IRO33.0011.B0 UVAC V33 V5 V12 VCC VREF2 PG FB2 PSON VREF1 NVP FB1 OP1 RI ...

Page 9

Power Supply Supervisor + Regulator + PWM APPLICATION 2 C45 R64 GND SEN NC VDD C78 4 3 R68 D31 R70 U5 R76 FB1 VREF1 R83 R86 C56 R87 U6 1 PSON PSON 2 3.3V ...

Page 10

Power Supply Supervisor + Regulator + PWM Example of Using SG6105 for the ATX Power Supply Protection against over-voltage, short-circuit and fault conditions is mandatory in PC power supplies. These protection circuits can be realized by using many discrete components ...

Page 11

Power Supply Supervisor + Regulator + PWM PWM switching signal in the secondary power transformer is proportional to the AC line voltage. Adjust the ratio of resistor divider to decide the threshold of power-down warning. A small capacitor is connected ...

Page 12

Power Supply Supervisor + Regulator + PWM MECHANICAL DIMENSIONS 20 PINS – DIP ( Dimension Millimeter Symbol Min 0.381 A2 3.175 24.892 E E1 6.223 e L 2.921 e 8.509 B ...

Page 13

Power Supply Supervisor + Regulator + PWM LIFE SUPPORT System General’s products are not designed to be used as components in devices intended to support or sustain human life. Use of System General’s products in components intended for surgical implant ...

Related keywords

SG6105D datasheet
SG6105D data sheet
SG6105D pdf datasheet
SG6105D component
SG6105D part
SG6105D distributor
SG6105D RoHS
SG6105D datasheet download