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IP2844A Datasheet(PDF) 1 Page - Seme LAB |
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IP2844A Datasheet(HTML) 1 Page - Seme LAB |
1 / 6 page LAB SEME IP1844A SERIES IP1845A SERIES Semelab plc. Telephone (01455) 556565. Telex: 341927. Fax (01455) 552612. Prelim. 2/95 TOP VIEW J Package – 8 Pin Ceramic DIP N Package – 8 Pin Plastic DIP D-8 Package – 8 Pin Plastic (150) SOIC 1 2 3 4 8 7 6 5 COMP V REF GROUND OUTPUT R T /C T V CC I SENSE V FB TOP VIEW D-14 Package – 14 Pin Plastic (150) SOIC COMP V REF GROUND OUTPUT 1 2 3 4 POWER GROUND 5 6 7 14 13 12 11 10 9 8 N/C R T /C T I SENSE N/C N/C N/C V CC V FB V C CURRENT MODE REGULATING PULSE WIDTH MODULATORS FEATURES • Guaranteed ±1% reference voltage tolerance • Accurate oscillator discharge current • Guaranteed ±10% frequency tolerance • Low start–up current (<500 mA) • Under voltage lockout with hysteresis • Output state completely defined for all supply and input conditions • Interchangeable with IP and UC1844/5 series for improved operation • 500kHz Oscillator operation 250kHz Output operation +30V Self limiting ±1A 5 µJ –0.3V to +VCC 10mA 1W 10mW/°C 725mW 7.25mW/°C 2W 16mW/°C –65 to 150°C +300°C ABSOLUTE MAXIMUM RATINGS (Tcase = 25°C unless otherwise stated) VCC Supply Voltage (low impedance source) (ICC < 30mA) IO Output Current Output Energy (capacitive load) Analog Inputs (pins 2 and 3) Error Amp Output Sink Current PD Power Dissipation Tamb = 25°C J, N Packages Derate @ Tamb > 50°C PD Power Dissipation Tcase = 25°C D Package Derate @ Tamb > 50°C PD Power Dissipation Tcase = 25°C J, N Packages Derate @ Tcase > 25°C TSTG Storage Temperature Range TL Lead Temperature (soldering, 10 seconds) Part J–Pack N–Pack D–8 D–14 Temp. Number 8 Pin 8 Pin 8 Pin 14 Pin Range IP1844A -55 to +125°C IP2844A -25 to +85°C IP3844A 0 to +70°C IP1845A -55 to +125°C IP2845A -25 to +85°C IP3845A 0 to +70°C Order Information Note: To order, add the package identifier to the part number. eg. IP1844AD–14 IP3845AJ |
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