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商品項目:18139
庫存現貨
DATE - 2026/06/22
UTC 不斷電系統 UPS應用

UTC 不斷電系統 UPS應用



在 UPS（不斷電系統）設計中，最重要的關鍵在於 電源轉換效率、備援切換速度與系統穩定性。
UTC 提供完整的 UPS 半導體解決方案，從 AC/DC 電源、電池充電、DC/DC 轉換到逆變器控制，都能找到對應元件，協助工程師快速完成產品開發。

PWM 控制器 (PWM Controller)
UPS 的核心電源控制單元，負責 AC/DC、DC/DC 與電池充電電路的控制。UTC 提供 UC3842B、UC3843A、UC3845、TL494、U3525 等經典方案，廣泛應用於離線式與在線式 UPS。

MOSFET 與 IGBT
從低壓電池管理到高壓逆變器應用，UTC 提供完整的功率元件選擇。MOSFET 適合 DC/DC 與電池切換電路，而 IGBT 則可應用於大功率逆變器，提高能源轉換效率。

DC/DC 與線性穩壓器
UPS 內部需要穩定的 3.3V、5V、12V 等工作電壓供 MCU、監控模組與通訊介面使用。UTC 提供 Buck Converter、LDO 與固定輸出穩壓器，兼顧效率與穩定性。

光耦合器與電壓參考 IC
UPC817、UPC816 光耦合器搭配 TL431 精密電壓參考，可實現隔離回授與精準輸出控制，是 UPS 電源設計中不可或缺的關鍵元件。

運算放大器與比較器
LM358、LM324、LM339 等產品可用於電池電壓監測、電流檢測、過壓保護及系統狀態監控，提升 UPS 的安全性與可靠性。

結合這些產品，UTC 能為 UPS 提供從控制、監測到功率轉換的完整解決方案，協助客戶縮短開發週期，同時提升系統效率與長期運作穩定性。

應用產品

Category Part No. Description Package
Darlington  Arrays ULN2003 7 Channel, 30VIN, 50VOUT, 500mA, Darlington DIP-16,SOP-16,TSSOP-16
Darlington  Arrays ULN2004 7 Channel, 30VIN, 50VOUT, 500mA, Darlington DIP-16,SOP-16
Darlington  Arrays ULN2803 8 Channel, 30VIN, 50VOUT, 500mA, Darlington DIP-18,SOP-18,SOP-20 TSSOP-20,QFN-20(4×4)
Darlington  Arrays ULN2804 8 Channel, 30VIN, 50VOUT, 500mA, Darlington DIP-18,SOP-18
Buck Converter UD18203 4.5~18VIN, 2A, 0.6VFB , 500KHz Freq., COT SOT-26
Buck Converter P1484 6.0~18VIN, 3A, 0.923VFB , 365KHz Freq., SOP-8
Buck Converter UD38251 8.0~38VIN, 2.5A, 1.0VFB , 160KHz Freq.
UVLO, OVP Function		 HSOP-8
Buck Converter UD38252 8.0~38VIN, 2.5A, 1.0VFB , 160KHz Freq., CC/CV
UVLO, OVP Function		 HSOP-8
DC-DC MC34063A 3.0~40VCC, 1.5A ISW,100Hz~100KHz Freq.,
Support Buck/Boost/Inverting Topology		 DIP-8, SOP-8, TSSOP-8
Current Mode
PWM Controller		 UC3842B 10~30VCC, 16VTHR, 5VREF, Adj. fOSC(MAX.)=500KHz
0.25mA ISTR, 12mA IOP, Duty(MAX.)=96%, UVLO		 DIP-8, SOP-8
Current Mode
PWM Controller		 UC3843B 7.6~30VCC, 8.4VTHR, 5VREF, Adj. fOSC(MAX.)=500KHz
0.25mA ISTR, 12mA IOP, Duty(MAX.)=96%, UVLO		 DIP-8, SOP-8
Current Mode
PWM Controller		 UC3843A 7.6~30VCC, 8.4VTHR, 5VREF, Adj. fOSC(MAX.)=500KHz
0.12mA ISTR, 11mA IOP, Duty(MAX.)=97%, UVLO		 DIP-8, SOP-8
Current Mode
PWM Controller		 UC3845 7.6~30VCC, 8.4VTHR, 5VREF, Adj. fOSC(MAX.)=500KHz
0.25mA ISTR, 12mA IOP, Duty(MAX.)=48%, UVLO		 DIP-8, SOP-8
Flyback Controller UC3863 9.0~22VDD, 13.5VTHD, FSW(TYP.)=65KHz, Power Saving
2.5uA ISTR, 1.2mA IOP, Duty(MAX.)=78%, UVLO, OVP		 DIP-8, SOP-8, SOT-26
Voltage Mode
PWM Controller		 U3525 8.0~35VIN, 5.1VREF, Adj. fOSC=100Hz~400KHz
500mA Sink/Source Current, DT Control, OSC Sync.		 DIP-16, SOP-16, SOP16W SOP-16N
Voltage Mode
PWM Controller		 TL494 7.0~40VIN, 5VREF, Adj. fOSC(MAX.)=300KHz
200mA Sink/Source Current, DT Control		 DIP-16, SOP-16, TSSOP-16
Photocoupler UPC817 35VCEO, 50mA IC, 6VR, 60mA IF, 5000VRMS VISO
A/B/C/D/X/Y  Rank CTR=50~600%		 DIP-4, DIP-4M, SMD-4,
DIP-4C,DIP-4MC,SMD-4C
Photocoupler UPC816 80VCEO, 50mA IC, 6VR, 60mA IF, 5000VRMS VISO
A/B/C/D/X/Y Rank CTR=50~600%		 DIP-4, DIP-4M, SMD-4
,SMD-4C,DIP-4C
Photocoupler UTC10XX 80VCEO, 50mA IC, 6VR, 60mA IF, 5000VRMS VISO
00~10/14/15/18/19 Rank CTR=50~600%		 LSOP-4
OP Amp. LM358 3~32VCC, Dual Channel, 2~5mVOS, 80dB CMRR,
100dB PSRR		 DIP-8, SOP-8, TSSOP-8,
MSOP-8, DFN2020-8, SIP-9
OP Amp. LM324 3~32VCC, Quad. Channel, 5mVOS, 75dB CMRR, 100dB PSRR DIP-14, SOP-14, TSSOP-14 QFN-16(3x3)
JFET OP Amp. TL074 ±18VCC, ±15VIN Quad. Channel, 3~6mVOS, 86dB CMRR, 86dB PSRR, 5~100pA II(OFF) DIP-14, SOP-14
RRO OP Amp. LV321 2.7~5.5VSS, Single Channel, 1.7~7mVOS, 63dB CMRR, 60dB PSRR SOT-25, SOT-353
Comparator LM339 2~36VCC, Quad. Channel, 1.5~3mVOS, 140~400mVSAT DIP-14, SOP-14, TSSOP-14 QFN-16(3x3)
Logic U74LVC1G08 1.65~5.5VCC, 2-Input AND GATE SOT-25, SOT-23-5, SOT-353
SOT-553, X2DFN1010-6
Logic U74AHCT00 4.5~5.5VCC, Quad. 2-Input NAND GATE SOP-14
Logic U74HC165 8-Bit Parallel Load Shift Register SOP-16, TSSOP-16
Logic UCD4081B 3~15VCC, Quad. 2-Input AND GATE DIP-14, SOP-14
Linear Regulator UZ2085 18VIN, 3A, Adj./fixed Output linear Regulator TO-252, SOT-223
Voltage Regulator 78D12A 35VIN , 1A, 12V Fixed Output, 72dB PSRR, 75μVrms eN TO-251, TO-252 TO-252-3, SOT-223
Voltage Regulator 78T05A 35VIN , 1A, 5.0V Fixed Output, 80dB PSRR, 40μVrms eN TO-263, TO-263-3
Voltage Regulator LM7805 35VIN , 1A, 5.0V Fixed Output, 80dB PSRR, 40μVrms eN TO-220, TO-220F TO-262, TO-92
Voltage Regulator LM7812 35VIN , 1A, 12V Fixed Output, 72dB PSRR, 75μVrms eN TO-220, TO-220F TO-262, TO-92
Voltage Regulator LM7815 35VIN , 1A, 15V Fixed Output, 70dB PSRR, 90μVrms eN TO-220, TO-220F TO-262, TO-92
Voltage Regulator 78L05 30VIN , 0.1A, 5V Fixed Output, 60dB PSRR, 40μVrms eN SOT-89, SOP-8, SOT-25
TO-92, TO-92NL, SOT-223
Negative Voltage Regulator 79L05 -35VIN , 0.1A, -5V Fixed Output, 71dB PSRR, 120μVrms eN SOT-89, SOP-8, TO-92
Voltage Regulator LD1117AG-ADJ 15VIN , 1A, Adj./fixed Output linear Regulator SOT-223, SOT-89, TO-220 TO-220F,TO-252, TO-252D TO-262, TO-263, TO-263-3 SOT-23-5, SOP-8, HSOP-8 PDFN5*6, SOT-25
Voltage
Reference		 TL431 VKA=Vref~36V, IKA-=1~100mA, VREF=2.495V
IKA(MIN.)<0.5mA		 SOT-23, SOT-23-3, TSOT-23
SOT-25, SOT-89, SOP-8
TO-92, SIP-3
Timer NE555 4.5~16VCC, 3mA ICC, 200mA Driver Capability
Astable/Monostable mode		 DIP-8, SOP-8, TSSOP-8
Ultra Fast Diode BYC5 600VRRM, 5A IF, 2.0~2.9VF, 48ns TRR TO-220-2, TO-252
Ultra Fast Diode BYC8 600VRRM, 8A IF, 2.0~2.9VF, 32~40ns TRR TO-220-2, TO-252, SMB
Hyper Fast Diode BYC15 600VRRM, 15A IF, 2.9VF, 117ns TRR TO-220-2
Super Fast Diode UFR15120 1200VRRM, 15A IF, 3.2VF, 130~150ns TRR TO-220-2,TO-220F-2
Super Fast Diode UFR30120 1200VRRM, 30A IF, 3.2VF, 85ns TRR TO-220-2, TO-247-2
MOSFET UT100N03-Q 30VDS, 100A, N-MOSFET, RDS(ON)<5.3mΩ
CISS=2140pF, QG=33nC		 TO-220, TO-263, PDFN5X6
MOSFET UT100N03 30VDS, 100A, N-MOSFET, RDS(ON)<4.6mΩ CISS=5200pF, QG=81C TO-220, TO-220F, TO-251 TO-252/D, TO-263, DFN5060-8
MOSFET 15N06 60VDS, 15A, N-MOSFET RDS(ON)<100mΩ CISS=347pF, QG=10nC TO-220, TO-220F/F1/F2, TO-251,TO-252, SOP-8
MOSFET UF630-HC 200VDS, 9A, N-MOSFET,RDS(ON)<0.35Ω CISS=426pF, QG=12nC TO-220,TO-220F/F1/F2,
TO-262 TO-263, TO-251, TO-252, SOP-8
MOSFET UF640-HC 200VDS, 18A, N-MOSFET, RDS(ON)<0.18Ω CISS=840pF, QG=20nC TO-247, TO-251, TO-252
TO-220, TO-220F/F1/F2, TO-262, TO-263, TO-3PN, SOP-8
MOSFET UF740-HC1 400VDS, 10A, N-MOSFET, RDS(ON)<0.48Ω CISS=1112pF, QG=47.6nC TO-220
MOSFET 3N90-FC 900VDS, 3A, N-MOSFET, RDS(ON)=<6.7Ω CISS=401pF, QG=14.6nC TO-220F/F1/F2,TO-251,
TO-252
MOSFET 4N90-FC 900VDS, 4A, N-MOSFET, RDS(ON)=<4.6Ω CISS=600pF, QG=14.2nC TO-220, TO-220F/F1/F2/F3 TO-251, TO-252, TO-263, TO-262
MOSFET 5N60-ML1 600VDS, 4A, N-MOSFET, RDS(ON)=<2.5Ω CISS=535pF, QG=18nC TO-220F1/F2
MOSFET 6N90-FC 900VDS, 6A, N-MOSFET, RDS(ON)<2.8Ω CISS=860pF, QG=15nC TO-220, TO-220F/F1/F2, TO-251 TO-252, TO-262, TO-263
MOSFET 9N90-FC 900VDS, 9A, N-MOSFET, RDS(ON)=<1.4Ω CISS=1800pF, QG=30nC TO-220,TO-220F/F1/F2,  TO-247 TO-3P
Transistor 2SA733-P PNP, -50VCEO, -150mA, hFE=200~400 SOT-23, SOT-323, TO-92
TO-92SP
Transistor 2SA1020-Y PNP, -50VCEO, -2A, hFE=120~240 SOT-23, SOT-89, TO-92 TO-92NL
Transistor 2SA1012-R PNP, -50VCEO, -5A, hFE=180~360 TO-220, TO-220F, TO-251 TO-252
Transistor MPSA92 PNP, -300VCEO, -500mA, hFE=80 SOT-89, SOT-252, TO-126 TO-126C,TO-92, TO-92NL
Transistor HE8050-D NPN, 25VCEO, 1.5A, hFE=160~300 SOT-89, SOT-23, TO-92,
TO-92NL
Transistor 2SC1815-GR NPN, 50VCEO, 150mA, hFE=200~400 TO-92
Transistor 2SC1384-R NPN, 50VCEO, 1A, hFE=120~240 SOT-89, TO-92, TO-92NL
Transistor 2SC2655-Y NPN, 50VCEO, 2A, hFE=120~240 SOT-23, SOT-89,
TO-92NL,TO-92 TO-252
Transistor 2SC2235-Y NPN, 120VCEO, 800mA, hFE=120~240 TO-92, TO-92NL
Transistor 2SD1616A-G NPN, 120VCEO, 1A, hFE=200~400 SOT-89, SOT-223, SIP-3
TO-92, TO-92SP
Transistor MMBT5551-B NPN, 160VCEO, 600mA, hFE=150~240 SOT-23
Transistor MMBTA42 NPN, 300VCEO, 500mA, hFE=80~300 SOT-23
IGBT UTG60N60 600VCES, 120A, N-Channel, VCE(SAT)<2.1V
CIES=3240pF, QG=272nC		 TO-247
IGBT UTG70N65-S 650VCES, 140A, N-Channel, VCE(SAT)<1.9V CIES=3220pF, QG=125.7nC TO-247
IGBT UTG30N120-G2 1200VCES, 60A, N-Channel, VCE(SAT)<2.1V CIES=1690pF, QG=138.3nC TO-247