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UC2827DW-1G4 Datasheet(PDF) 3 Page - Texas Instruments |
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UC2827DW-1G4 Datasheet(HTML) 3 Page - Texas Instruments |
3 / 16 page UC2827-1, UC2827-2 UC3827-1, UC3827-2 www.ti.com SLUS365D – APRIL 1999 – REVISED APRIL 2011 ABSOLUTE MAXIMUM RATINGS (1) UC2827-1 UC2827-2 UNITS UC3827-1 UC3827-2 Supply voltage, VCC 20 CEAO, CEA+, CEA-, CSAO, CSA+, CSA-, CT, DELAY, PUSH, PULL, –0.3 to 5 RAMP, RT, SS, SYNC, VEA+, VEAO, V Input voltage range V+ and BUCK 90 SRC 90-VCC I/O continuous ±250 mA BUCK driver I/O peak ±1 A I/O continuous ±200 mA PUSH/PULL driver I/O peak ±0.8 A Storage temperature –65 to 150 Junction temperature –55 to 150 °C Lead temperature (soldering, 10 sec) 300 (1) Voltages are referenced to ground. Currents are positive into, negative out of the specified terminal. Consult Packaging section of databook for thermal limitations and considerations of packages. ELECTRICAL CHARACTERISTICS Unless otherwise spsecified, VVCC = 15 V, VV+ = 14.3 V, CCT = 340 pF, RRT = 10 kΩ, RDELAY = 24.3 kΩ, VSRC = VGND = VBUCK= VPUSH = VPULL outputs no load, TJ = TA PARAMETER TEST CONDITIONS MIN TYP MAX UNIT SUPPLY VCC UVLO, Turn-on 8.3 8.8 9.5 V Hysteresis 0.9 1.2 1.5 V IVCC Supply current start VVCC = 8 V 1000 µA IVCC Supply current run 32 45 mA IV+ buck high 0.2 1 2 mA VOLTAGE ERROR AMPLIFIER IB 0.5 3 µA VIO 10 mV AVOL 80 95 dB GBW(1) Gain bandwidth 1 4 MHz VOL Low-level output voltage IVEAO = 0 µA (No load) 0.3 0.5 V VOH High-level output voltage IVEAO = 0 µA (No load) 2.85 3 3.20 V CURRENT SENSE AMPLIFIER IB –1 –5 µA VIO 5 mV AVOL 80 110 dB GBW (1) Gain bandwidth 15 29 MHz VOL Low-level output voltage ICEAO = 0 µA (No load) 0.25 0.5 V VOH High-level output voltage ICEAO = 0 µA (No load) 3 3.3 V CMRR Common mode range(1) -0.3 2 V (1) Ensured by design. Not production tested. Copyright © 1999–2011, Texas Instruments Incorporated 3 |
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