深圳黄金树科技有限公司代理美国福斯特FIRST，无锡新洁能股份有限公司NCEPOWER功率产品，江苏捷捷微JJM可控硅 等二三极，肖特基 LOWVF值电子元件器 本公司长期有库存 ，台湾UTC品牌UC3842AL,原装，欢迎来电咨询合作

UC3842A/3843A LINEAR INTEGRATED CIRCUIT  Unisonic Technologies Co., Ltd QW-R103-002.J CURRENT MODE PWM CONTROL CIRCUITS  DESCRIPTION The UTC UC3842A/3843A provide the necessary functions to implement off-line or DC to DC fixed frequency current mode, controlled switching circuits with minimal external components.  FEATURES *Low Start Up Current ( Typical 0.12mA ) *Automatic Feed Forward Compensation *Pulse-by-Pulse Current Limiting *Under-voltage Lockout with Hysteresis *Double Pulse Suppression *High Current Totem Pole Output to Drive MOSFET Directly *Internally Trimmed Band Gap Reference *500kHz Operation

 ORDERING INFORMATION Ordering Number Lead Free Halogen Free Package Packing UC3842AL-D08-T UC3842AP-D08-T DIP-8 Tube UC3842AL-S08-R UC3842AP-S08-R SOP-8 Tape Reel UC3843AL-D08-T UC3843AP-D08-T DIP-8 Tube UC3843AL-S08-R UC3843AP-S08-R SOP-8 Tape Reel 

UC3842A/3843A LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO.,  ABSOLUTE MAXIMUM RATINGS (TA=25°C, unless otherwise specified) PARAMETER SYMBOL RATINGS UNIT Supply Voltage(Low Impedance Source) VCC 30 V Supply Voltage(ICC<30mA) VCC Self Limiting V Analog Inputs (Pin 2,3) VI(ANA) -0.3 ~ +6.3 V Output Current (Peak ) IO(PEAK) ±1 A Error Amplifier Output Sink Current ISINK(EA) 10 mA Output Energy (Capacity Load) 5 μJ DIP-8 1250 Power Dissipation( TA≦25°C) SOP-8 800 mW Derated at TA>25°C PD 8 mW/°C Junction Temperature TJ +150 °C Storage Temperature TSTG -65 ~ +150 °C 

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