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參數(shù)資料
| 型號(hào)： | SG6105A |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | Power Supply Supervisor + Regulator + PWM |
| 中文描述： | 監(jiān)穩(wěn)壓電源的PWM |
| 文件頁數(shù)： | 1/18頁 |
| 文件大小： | 597K |
| 代理商： | SG6105A |
Product Specification
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
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 regulators 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
APPLICATIONS
SG6105A
System General Corp.
Version 1.0.1 (IAO33.0072.B0)
- 1 -
www.sg.com.tw www.fairchildsemi.com
September 25, 2007
Switching mode power supply for computers:
AT
NLX
SFX (micro-ATX)
DESCRIPTION
SG6105A controller is designed for switching-mode
power supplies 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, and protection features against
over-voltage and over-power are implemented. It
directly senses all the output rails for OVP without
the need for external dividers. An innovative
AC-signal sampling circuitry provides a sufficient
power-down warning signal for PG.
A built-in timer generates accurate timing for the
control circuit, including the PS-off delay. The
cycle-by-cycle PWM switching prevents the power
transformer from saturation and ensures the fastest
response for the short-circuit protection, which
greatly reduces stress for power transistors. Two
internal precision TL431 shunt regulators provide
stable reference voltage and a driver for 3.3V and 5V
standby regulation.
Utilizing
SG6105A includes the functions for push-pull and/or
half-bridge topology, decreasing production cost and
PCB space, and increasing the MTBF for power
supply.
minimum
external
components,
the
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SG6105A_09 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Power Supply Supervisor Regulator PWM |
| SG6105ADY | 功能描述:監(jiān)控電路 Switching Mode Power Supply Contrl RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| SG6105ADZ | 功能描述:監(jiān)控電路 Power Supply Sprvsr + Regulator + PWM RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| SG6105ADZ_F116 | 功能描述:監(jiān)控電路 Power Supply Sprvsr Regulator + PWM RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| SG6105D | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Power Supply Supervisor + Regulator + PWM |
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