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UC2849 Fiches technique(PDF) 2 Page - Texas Instruments |
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UC2849 Fiches technique(HTML) 2 Page - Texas Instruments |
2 / 11 page PARAMETER TEST CONDITIONS MIN TYP MAX UNITS Current Sense Amplifier Ib 0.5 3 µA Vio TA = +25°C 3 mV Over Temperature 5 mV Avo 60 90 dB GBW (Note 2) Acl = 1, RIN = 1k, CC = 15pF, f = 200kHz (Note 1) 4.5 7 MHz Vol Io = 1mA, Voltage above VEE 0.5 V Voh Io = 0mA 3.8 V Io = −1mA 3.5 V CMRR −0.2 < Vcm < 8V 80 dB PSRR 10V < VCC < 20V 80 dB Current Error Amplifier Ib 0.5 3 µA Vio 320 mV 2 UC1849 UC2849 UC3849 ABSOLUTE MAXIMUM RATINGS Supply Voltage (VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20V Output Current Source or Sink . . . . . . . . . . . . . . . . . . . . . .0.3A Analog Input Voltages . . . . . . . . . . . . . . . . . . . . . . . −0.3V to 7V ILIM, KILL, SEQ, ENBL, RUN . . . . . . . . . . . . . . . . −0.3V to 7 V CLKSYN Current Source . . . . . . . . . . . . . . . . . . . . . . . . .12mA RUN Current Sink . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15mA SEQ Current Sink . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20mA RDEAD Current Sink . . . . . . . . . . . . . . . . . . . . . . . . . . . .20mA Share Bus Voltage (voltage with respect to GND) . . .0V to 6.2V ADJ Voltage (voltage with respect to GND) . . . . . .0.9V to 6.3V VEE (voltage with respect to GND) . . . . . . . . . . . . . . . . . −1.5V Storage Temperature . . . . . . . . . . . . . . . . . . . −65°C to +150°C Junction Temperature . . . . . . . . . . . . . . . . . . . −65°C to +150°C Lead Temperature (Soldering, 10 sec.) . . . . . . . . . . . . .+300°C All voltages with respect to VEE except where noted; all currents are positive into, negative out of the specified terminal. Consult Packaging Section of Databook for thermal limitations and considerations of packages. RECOMMENDED OPERATING CONDITIONS Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8V to20V Sink/Source Output Current . . . . . . . . . . . . . . . . . . . . . .250mA Timing Resistor (RT) . . . . . . . . . . . . . . . . . . . . . . . . .1k to 200k Timing Capacitor (CT) . . . . . . . . . . . . . . . . . . . . . .75pF to 2nF CONNECTION DIAGRAMS DIL-24, SOIC-24, TSSOP-24 (Top View) J or N, DW, PW Packages PLCC-28 (Top View) Q Package ELECTRICAL CHARACTERISTICS Unless otherwise stated these specifications apply for TA = −55°Cto +125°C for UC1849; −40 °C to +85°C for UC2849; and 0°C to +70°C for UC3849;VCC = 12V, VEE = GND, Output no load, CT = 345pF, RT = 4530 Ω, RDEAD = 511Ω, RCLKSYN = 1k, TA = TJ. |
Numéro de pièce similaire - UC2849 |
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Description similaire - UC2849 |
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