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UC1846-EP датащи(PDF) 5 Page - Texas Instruments |
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UC1846-EP датащи(HTML) 5 Page - Texas Instruments |
5 / 15 page www.ti.com G + DVPIN7 DVPIN4 UC1846-EP CURRENT-MODE PWM CONTROLLER SGLS329 – MAY 2006 Electrical Characteristics (continued) T A = –55°C to 125°C, VIN = 15 V, RT = 10 k, CT = 4.7 nF, TA = TJ (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Current-Sense Amplifier Amplifier gain VPIN3 = 0 V, Pin 1 open(2)(3) 2.5 2.75 3 V Maximum differential input signal Pin 1 open,(2) RL (pin 7) = 15 kW 1.1 1.2 V (VPIN4 – VPIN3) Input offset voltage VPIN1 = 0.5 V, Pin 7 open(2) 5 25 mV CMRR VCM = 1 V to 12 V 60 83 dB PSRR VIN = 8 V to 40 V 60 84 dB Input bias current VPIN1 = 0.5 V, Pin 7 open(2) –2.5 –10 µA Input offset current VPIN1 = 0.5 V, Pin 7 open(2) 0.08 1 µA Input common-mode range 0 VIN – 3 V Delay to outputs TJ = 25°C(4) 200 500 ns Current-Limit Adjust Current-limit offset VPIN3 = 0 V, VPIN4 = 0 V, Pin 7 open(2) 0.45 0.5 0.55 V Input bias current VPIN5 = VREF, VPIN6 = 0 V –10 –30 µA Shutdown Terminal Threshold voltage 250 350 400 mV Input voltage range 0 VIN V Minimum latching current (IPIN1)(5) 3 1.5 mA Maximum nonlatching current (IPIN1)(6) 1.5 0.8 mA Delay to outputs TJ = 25°C(4) 300 600 ns Output Collector-emitter voltage 40 V Collector leakage current VC = 40 V 200 µA ISINK = 20 mA 0.1 0.4 Output low level V ISINK = 100 mA 0.4 2.1 ISOURCE = 20 mA 13 13.5 Output high level V ISOURCE = 100 mA 12 13.5 Rise time CL = 1 nF, TJ = 25°C(4) 50 300 ns Fall time CL = 1 nF, TJ = 25°C(4) 50 300 ns Undervoltage Lockout Start-up threshold 7.7 8 V Threshold hysteresis 0.75 V Total Standby Current Supply current 17 21 mA (2) Parameter measured at trip point of latch with VPIN5 = VREF, VPIN6 = 0 V. (3) Amplifier gain defined as: where VPIN4 = 0 to 1 V (4) These parameters, although specified over the recommended operating conditions, are not 100% tested in production. (5) Current into pin 1 is ensured to latch circuit in shutdown state. (6) Current into pin 1 is ensured not to latch circuit in shutdown state. 5 Submit Documentation Feedback |
Аналогичный номер детали - UC1846-EP |
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Аналогичное описание - UC1846-EP |
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