FairchildFAN104W平板电脑和智能手机电池充电解决方案
Fairchild公司的FAN104W是高频初级调整的PWM控制器,能提高低功率反激转换器的性能.待机功耗小于30mW,满足能量之星五星标准,突发模式工作电流600uA,具有输出短路保护,输出过压保护(VSOVP),VDD过压保护和超温保护等功能,主要用在智能手机,PAD,PDA和数码相机电池充电器等.本文介绍了FAN104W主要特性,方框图,典型应用电路以及10W平板电脑和智能手机充电器参考设计主要特性,电路图,变压器电路和PCB布局图.
This highly integrated PWM controller, FAN104W, provides several features to enhance the performance of low-power flyback converters. The proprietary topology of FAN104W enables simplified circuit design for battery charger applications. The result is a lowercost,smaller, and lighter charger compared to a conventional design or a linear transformer.To minimize standby power consumption, a proprietary green-mode function provides off-time modulation to linearly decrease PWM frequency under light-load conditions. Green Mode assists the power supply in meeting power conservation requirements. By using FAN104W, a charger can be implemented with few external components and minimized cost.
FAN104W主要特性:
? Achieves 30 mW; Energy Star’s 5-Star Level
? Proprietary 500 V High-Voltage JFET Startup Reduces Startup Resistor Loss
? Low Operation Current in Burst Mode: 600 μA
? Constant-Voltage (CV) and Constant-Current (CC)
Control without Secondary-Feedback Circuitry
? Green Mode: PWM Frequency Linearly-Decreasing
? PWM Frequency at 85 kHz with Frequency Hopping to Solve EMI Problem
? Boundary-Conduction-Mode (BCM) Operation at Lower AC Input Voltage
? Cable Compensation in CV Mode
? Cycle-by-Cycle Current Limiting
? Gate Output Maximum Voltage Clamped at 14 V
? VDD Under-Voltage Lockout (UVLO) Available
? Built-in Protections:
- Output Short-Circuit Protection
- Output Over-Voltage-Protection (VSOVP) with Latch Mode
- VDD Over-Voltage-Protection (VDD OVP)
- CS Pin Single-Fault Protection
- VS Pin single-Fault Protection
- Over-Temperature-Protection (OTP) with Latch Mode
? SOIC Package
FAN104W应用:
? Battery chargers for smart phones, Pad, PDA,digital cameras.
? Best choice to replace linear transformer and RCC SMPS
图1.FAN104W方框图
图2.FAN104W典型应用电路图
10W平板电脑和智能手机充电器参考设计
This reference design supports inclusion of the FAN104W in the design of a 10W charger with BCM operation and Primary-Side Regulation (PSR) technology. It should be used in conjunction with the FAN104W datasheet as well as Fairchild’s application notes and technical support team.
10W充电器参考设计主要特性:
Low Standby-Power Consumption: 50mW at 264VAC
Constant-Voltage (CV) and Constant-Current (CC) Control without Secondary-Feedback Circuitry
PWM Frequency at 85kHz with Frequency Hopping to Reduce EMI
Frequency-Reduction Technology for BCM Operation
Cable-Voltage-Drop Compensation in CV Mode
High-Voltage Startup
Low Burst-Mode Operating Current: 600A(Typical) and Normally-Operating Current: 3.5mA (Typical)
Output Over-Voltage Protection (OVP), VDD Over-Voltage Protection (OVP),VDD Under-Voltage Lockout (UVLO), Over-Temperature Protection (OTP),CS-Pin- Short Protection, VS-Pin Single-Fault Protection
SOIC-8 Package
图3.10W充电器参考设计电路图
图4.10W充电器参考设计变压器电路图
图5.10W充电器参考设计外形图
图6.10W充电器参考设计PCB布局图
详情请见:
http://www.fairchildsemi.com/ds/FA/FAN104W.pdf
和
http://www.fairchildsemi.com/support/referencedesign/docs/RD-FAN104WMD-T06U010A.pdf
- 基于CAN通信的电源监控系统的设计(04-06)
- 一种基于Intel8253与L298N电机PWM调速法(06-09)
- GPIB芯片TNT4882在多路程控电源中的应用(06-08)
- 用作测试负载的数字可编程电阻(07-15)
- 关于光电转换电源控制系统的设计(07-24)
- 基于DSP的单相精密电源硬件设计(07-24)
- 濡ゅ倹岣挎鍥╀焊閸曨垼鏆ョ€规悶鍎抽埢鑲╂暜閸繂鎮嬮柟瀛樺姇閻撹法鎷嬮鐔告畬缂佸顑呴〃婊呮啑閿燂拷
闁稿繈鍔嶉弻鐔告媴瀹ュ拋鍔呭☉鏃傚Т閻ㄧ姵锛愰幋婊呯懇濞戞挻姘ㄩ悡锛勬嫚閸☆厾绀夐柟缁樺姇瀹曞矂鎯嶉弬鍨岛鐎规悶鍎扮紞鏃堟嚄閽樺顫旈柨娑樿嫰婵亪骞冮妸銉﹀渐闂侇偆鍠愰崹姘舵⒐婢舵瓕绀嬪ù鍏坚缚椤懘鎯冮崟顐ゆ濡増鍨垫导鎰矙鐎n亞鐟�...
- 濞戞搩鍘炬鍥╀焊閸曨垼鏆ョ€规悶鍎抽埢鑲╂暜閸繂鎮嬮柟瀛樺姇閻撹法鎷嬮鐔告畬缂佸顑呴〃婊呮啑閿燂拷
缂侇噣绠栭埀顒婃嫹30濠㈣埖宀稿Λ顒備焊閸曨垼鏆ラ柛鈺冾攰椤斿嫮鎷犻崜褉鏌ら柨娑樺缁楁挾鈧鍩栧璺ㄦ嫚閹惧懐绀夐柛鏂烘櫅椤掔喖宕ㄥΟ鐑樺渐闂侇偆鍠曢幓顏堝礆妫颁胶顏卞☉鎿冧簻閹酣寮介悡搴f濡増鍨垫导鎰矙鐎n亞鐟庨柣銊ュ椤╋箑效閿燂拷...
- Agilent ADS 闁轰焦鐟ラ鐔煎春绾拋鍞查悹鍥у⒔閳诲吋绺藉Δ鍕垫
濞戞挻鎸搁宥夊箳閸綆鍤﹂柨娑樿嫰閸欏繘妫冮姀锝庡敼閻熸瑯鏋僁S闁告艾瀚~鎺楀礉閻旇鍘撮柛婊冭嫰娴兼劗绮欑€n亞瀹夐柣銏╃厜缁遍亶宕濋埡鍌氫憾闁烩偓鍔嶅〒鍫曟儗椤撶姵鐣遍柡鍐ㄧ埣濡法鈧冻缂氱槐鐧咲S...
- HFSS閻庢冻缂氱弧鍕春绾拋鍞查悹鍥у⒔閳诲吋绺藉Δ鍕垫
閻犙冨缁讳焦绋夐幘鎰佸晙闁瑰搫鐗愰鎶芥晬鐏炶棄寮块梻鍫涘灱椤斿骞掗崷娆禨S闁汇劌瀚慨娑㈡嚄閽樺瀚查幖瀛樻⒒閺併倝鏁嶇仦钘夌盎闁告柡鏅滈崑宥夊礂閵娾晜妗ㄧ紒顖濆吹缁椽宕烽弶娆惧妳濞戞梻濮电敮澶愬箵椤″锭SS...
- CST鐎甸偊鍠楃亸婵嗩啅閵夈倗绋婇悗骞垮€曢悡璺ㄦ媼椤撶喐娈岀紒瀣儏椤ㄦ粎鎲楅敓锟�
闁哄瀛╁Σ鎴澝虹€b晛鐦滈悹浣筋嚋缁辨繈宕楅妸鈺傛〃閻犱礁寮跺绶維T闁告艾瀚伴妴宥夊礉閻旇鍘撮柛婊冭嫰娴兼劗绮欑€n亞瀹夐柣銏╃厜缁辨繈宕濋埡鍌氫憾闊浂鍋婇埀顒傚枙閸ゆ粎鈧冻闄勭敮澶愬箵椤″T閻犱焦宕橀鍛婃償閺冨倹鏆�...
- 閻忓繐瀚伴。鍫曞春閾忚鏀ㄩ柛鈺冾攰椤斿嫮鎷犻崜褉鏌�
濞戞挸娲g粭鈧Δ鍌浬戦妶濂哥嵁閸愬弶鍕鹃悹褍鍤栫槐婵囨交濞嗗海鏄傞悹鍥у⒔閳诲吋绋夋潪鎵☉闁革负鍔岄惃鐘筹紣閹寸偛螚闁哄牜鍨堕。顐﹀春閻旀灚浜i悘鐐存礃鐎氱敻鎳樺鍓х闁瑰灚鎸风粭鍛村锤濮橆剛鏉介柣銊ュ缁楁挻绋夊顒傚敤缁绢厸鍋�...
- 鐎甸偊鍠楃亸婵堜焊閸曨垼鏆ユ繛鏉戭儔閸f椽骞欏鍕▕闁糕晝顢婇鍕嫚閸撗€鏌ら柛姘墦濞夛拷
閻犳劦鍘洪幏閬嶅触閸儲鑲犻柡鍥ㄦ綑閻ゅ嫰骞嗛悪鍛缂傚啯鍨甸崹搴ㄥΥ娓氣偓椤e墎鎷崣妯哄磿闁靛棔鑳堕妵姘枖閵忕姵鐝ら柕鍡曟娣囧﹪宕i柨瀣埍闁挎稑鏈崹婊呮啺娴e湱澹夐柡宥夘棑缁ㄥ潡鏌呴敓锟�...