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MAX14870 Datasheet(PDF) 4 Page - Maxim Integrated Products |
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MAX14870 Datasheet(HTML) 4 Page - Maxim Integrated Products |
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4 / 15 page  (VDD = 4.5V to 36V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VDD = 12V, TA = +25°C) (Note 2) Note 2: All units are production tested at TA = +25°C. Specifications over temperature are guaranteed by design. Note 3: VSNS_TH is the threshold voltage to turn on current regulation. PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS PWM Frequency fSW EN = low MAX14870, switching signal applied at PWM 50 kHz MAX14872, switching signal applied at FWD or REV 50 Dead Time tDEAD 140 ns M1, M2 Slew Rate SR 200 V/μs M1, M2 High-Side Propagation Delay tPR RL = 1kΩ, CL = 50pF, PWM/FWD/DIR/REV rising, Figure 1 620 ns M1, M2 Low-Side Propagation Delay tPF RL = 1kΩ, CL = 50pF, PWM/FWD/DIR/REV falling, Figure 1 583 ns Current Regulation Fixed Off-Time tOFF PWM/FWD = high, EN = low, VSNS > VSNS_TH 7.8 15 22 μs Current Regulation Minimum On-Time tCR_BL PWM/FWD = high, EN = low, VSNS > VSNS_TH 2.5 μs Overcurrent Blanking Time tOC_BL M1/M2 is shorted to VDD or GND, Figure 2 1 μs Overcurrent Autoretry Timeout tOC_TO PWM/FWD = high, EN = low, IM or IM2 > IM_OL, Figure 2 2 ms Enable Turn-On Delay tEN_ON PWM/FWD = high, RL = 1kΩ, CL = 50pF, EN falling, M1/M2 rising to 10%, Figure 3 23 μs Enable Turn-Off Delay tEN_OFF PWM/FWD = high, RL = 1kΩ, CL = 50pF, EN rising, M1/M2 falling to 90%, Figure 3 50 μs MAX14870/MAX14872 Compact 4.5V to 36V Full-Bridge DC Motor Drivers www.maximintegrated.com Maxim Integrated │ 4 AC Electrical Characteristics |
Similar Part No. - MAX14870_15 |
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Similar Description - MAX14870_15 |
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