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THMC45 Datasheet(PDF) 4 Page - Texas Instruments |
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THMC45 Datasheet(HTML) 4 Page - Texas Instruments |
4 / 16 page THMC45 5V AND 3.3V DC BRUSHLESS FAN MOTOR DRIVER WITH SINGLE WIRE CONTROL SLIS101A − MAY 2001 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 dc electrical characteristics, VPWR = 5V, TA = −30°C to 80°C (unless otherwise noted) supply current PARAMETER TEST CONDITIONS MIN TYP MAX UNIT V Supply voltage normal operation 4.5 5 5.5 VPWR Supply voltage functional with derated performance 2.4 4.5 V VPOR Power-on reset voltage threshold Increase VPWR until logic active 1.5 V IVPWR VPWR supply current IL = 0 A 0.5 1.5 mA IVPWR VPWR supply current Idle condition, in locked rotor detect 0.5 1.5 mA IREV Reverse leakage VPWR = −5 V at TA = 25°C 5 mA ISLEEP Sleep-state current VPWM = 0 V for >2 ms 75 300 µA Hall sensor signal conditioning PARAMETER TEST CONDITIONS MIN TYP MAX UNIT IIB(HL) Input bias current See Note 5 −1 1 µA VICR(HL) ICR(HL) common mode input voltage range 1 3.5 V VIO Hall amplifier input offset voltage −20 0 20 mV NOTE 5: Design target only. Not tested in production. OUTA, OUTB phase winding driver outputs PARAMETER TEST CONDITIONS MIN TYP MAX UNIT ILEAK OUTA, OUTB output leakage current VPWM = 0 V for >2 ms, sleep state, VOUTx = 5 V −1 1 µA RDSON(Low) OUTA, OUTB low-side output ON resistance IOUTx = 200 mA, TA = 25°C 1.6 2.5 Ω RDSON(High) OUTA, OUTB high-side output ON resistance IOUTx = −200 mA, TA = 25°C 1.9 2.5 Ω RDSON OUTA, OUTB low-side output ON resistance IOUTx = 100 mA, VPWR = 2.4 V TA = 25°C, 3 6 Ω RDSON OUTA, OUTB high-side output ON resistance IOUTx = −100 mA, VPWR = 2.4 V TA = 25°C, 3.5 6 Ω PWM input/TACH pulse output PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VIH PWM high-level input voltage 2 V VIL PWM low-level input voltage 0.8 V IIH PWM high-level input current VPWM = 5 V −1 1 µA IIL PWM low-level input current VPWM = 0 V 75 200 µA VOL PWM input tachometer pulse output low voltage IPWM = 2 mA 0.4 V TACH open-drain output PARAMETER TEST CONDITIONS MIN TYP MAX UNIT IIH TACH output high leakage VTACH = VPWR −1 1 µA VOL TACH output low voltage ITACH = 5 mA 400 mV |
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