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品佳集團力推 Anpec S.M.P.S 電源解決方案

 2015-11-04

【方案介紹】
品佳力推茂達電子(Anpec Electronics Corp.)4款具高驅動能力的同步直流降壓控制IC,  Anpec APW7073/APW7160/APW7159/APW7164 非常適合切換式電源供應器(SMPS) , 使用於二次測同步降壓方案。此設計可以讓二次測設計模組化 , 方便客戶機種轉換 , 維修及縮短生產流程檢驗時間。具備完整的系統保護功能,包括柔性啟動機制可防止輸出電壓過衝現象及限制輸入湧浪電流過大、偵測上橋MOSFET之RDS(ON)的過電流保護機制以及欠電壓保護機制。開關切換頻率可調整,使得設計上可以使用較小型的濾波元件,減低元件大小,而外部補償方式更提供用戶之應用靈活度,客戶僅須在系統中輸入相關電源規格並選擇適當元件,即可輕鬆完成電源供應器原型設計。

另外主推PC Power的風扇控制出專門的IC APW9008/S
1. 簡單設計:原本要靠OP, 431, BJT(or MOSFET)…等一堆零件去設計線路,現在只要靠一顆IC就可解決,且有Excel tools馬上可以調出需要的fan curve。

2. 減少Loss:整個風扇控制線路Loss很低, buck switching架構輸出風扇電壓(不像傳統線路用Linear把loss都浪費再BJT上), 可以停轉….等

【方案特色】
APW7073

. Single 12V Power Supply Required
· 0.6V Reference with 1% Accuracy
· Shutdown and Soft-Start Function
· Programmable Frequency Range from 50 kHz to 1000 kHz
· Voltage Mode PWM Control Design
· Up to 100% Duty Cycle
· Under-Voltage Protection (UVP)
· Over-Current Protection (OCP)
· SOP-14 Package
· Lead Free and Green Devices Available
(RoHS Compliant)

APW7160
. Single 12V Power Supply Required

. Excellent Output Voltage Regulation- 1.0V ± 0.8% Internal Reference
. Simple Single Loop Control Design-Voltage Mode PWM Control
. 0~100% Duty Ratio
. Programmable Frequency Range from 80 kHz to 300kHz
. Synchronous Switching Frequency Input
. Integrated Boot-Strap Diode
. Over-Current Protection- Sense High-Side MOSFET’s RDS(ON)
. Over-Voltage Protection
. Under-Voltage Protection
. Over-Temperature Protection
. Fault Indicator
. Available in SOP-14 Packages
. Halogen and Lead Free Available

APW7159
. Single 12V Power Supply Required

· Excellent Output Voltage Regulation- 1.0V±0.8% Internal Reference Over Line and Temperature
· Simple Single Loop Control Design- Voltage Mode PWM Control
· 0~100% Duty Ratio
· Programmable Frequency Range from 50 kHz to 400 kHz (Constant 50 kHz when Floating)
· Integrated Soft-Start and Soft-Off (Patent Pending)
· Support Pre-Biased Power-On
· Both Channel with 180o Phase Shift
· Integrated Boot-Strap Diode
· Over-Current Protection Sense High Side MOSFET’s RDS(ON)
· 120% Over-Voltage Protection
· 50% Under-Voltage Protection
· Over-Temperature Protection
· Available in SOP-20, TSSOP-20P, and QFN4X4-24Packages
· Lead Free and Green Devices Available
(RoHS Compliant)

APW7164
. Excellent Reference Voltage Regulations 

. 0.8V Internal Reference - ±1%
. Over Line Voltage and Temperature Range
· Integrated Soft-Start
· Fixed 200 kHz Operation Frequency
· Voltage Mode PWM Operation with Up to 90% (Max.) Duty Cycle
· Under-Voltage Protection
· Adjustable Over-Current Protection Threshold -Using the RDS(ON)of Low-Side MOSFET
· Over-Voltage Protection
· Simple SOP-8 Package
· Lead Free and Green Devices Available
(RoHS Compliant)

APW9008
. Switching Topology to Save The Power Loss

· Programmable Two Level Slope Fan Curve
· Sleep Mode to Turn Off FAN and Reduce Power Loss
· APW9008S : Sleep Mode
· APW9008 : No Sleep Mode
· Programmable Minimum Fan Speed
· Programmable OTP Point
· NTC Open Protection
· Full Fan Control at Initial Power On
· OTP Easy to Shut down Power
· SOP-8 Package
· Lead Free and Green Devices Available (RoHS)

【系統方塊圖】



【規格說明】




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