SG6105

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 Under-voltage protection for 12V and/or 5V Over-power and short-circuit protection Pow...

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SeekIC No. : 004489159 Detail

SG6105: 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 3.3...

floor Price/Ceiling Price

Part Number:
SG6105
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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268 Transactions

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Upload time: 2024/11/23

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Product Details

Description



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
  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



Application

Switching mode power supply for Computers, such



Pinout

  Connection Diagram


Specifications

Parameter
Symbol
Unit
Min
Max
DC Supply Voltage
VDD
V
-0.3
16
Input Voltage
Vi
V
-0.3
16
Output Voltage
VOUT
V
-0.3
30
Operating Free Air Temperature Range
TA
-0.3
1.5
Storage Temperature Range
TSTG
-40
0.5
Soldering Temperature
Vdc
-55
-55 to +150
ESD Capability, HBM model
Vdc
KV
82.5



Description

SG6105 controller is designed for switching mode 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-intimer 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 allof the functions for push-pull and/or half-bridge topology, decreasing the production cost and PCB space, and increasing the MTBF for power supply.




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