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TL1454IN Scheda tecnica(PDF) 11 Page - Texas Instruments |
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TL1454IN Scheda tecnica(HTML) 11 Page - Texas Instruments |
11 / 24 page TL1454, TL1454Y DUAL-CHANNEL PULSE-WIDTH-MODULATION (PWM) CONTROL CIRCUIT SLVS086B – APRIL 1995 – REVISED NOVEMBER 1997 11 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443 electrical characteristics, VCC = 6 V, fosc = 500 kHz, TA = 25°C (unless otherwise noted) (continued) dead-time control (DTC) PARAMETER TEST CONDITIONS TL1454Y UNIT PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VIT Input threshold voltage Duty cycle = 0% 1.1 V VIT Input threshold voltage Duty cycle = 100% 0.5 V VI(latched) Latched-mode input voltage 1.2 V Latched-mode (source) current – 100 µA error-amplifier PARAMETER TEST CONDITIONS TL1454Y UNIT PARAMETER TEST CONDITIONS MIN TYP MAX UNIT IIB Input bias current VO = 1.25 V, VIC = 1.25 V – 160 nA AV Open-loop voltage gain RFB = 200 kΩ 80 dB Unity-gain bandwidth 3 MHz CMRR Common-mode rejection ratio 80 dB VOM(max) Positive output voltage swing 2.43 V VOM(min) Negative output voltage swing 0.63 V IO+ Output sink current VID = – 0.1 V, VO = 1.20 V 0.5 mA IO– Output source current VID = 0.1 V, VO = 1.80 V –70 µA output PARAMETER TEST CONDITIONS TL1454Y UNIT PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VOH High level output voltage IO = – 8 mA 4.5 V VOH High-level output voltage IO = – 40 mA 4.4 V VOL Low level output voltage IO = 8 mA 0.1 V VOL Low-level output voltage IO = 40 mA 1.8 V trv Output voltage rise time CL = 2000 pF 220 ns tfv Output voltage fall time CL = 2000 pF 220 ns supply current PARAMETER TEST CONDITIONS TL1454Y UNIT PARAMETER TEST CONDITIONS MIN TYP MAX UNIT ICC(stby) Standby supply current RT open, CT = 1.5 V, No load, VO (COMP1, COMP2) = 1.25 V, 3.1 mA ICC(average) Average supply current RT = 10 kΩ, 50% duty cycle, CT = 120 pF, Outputs open 3.5 mA |
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