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A3965 Datasheet(PDF) 5 Page - Allegro MicroSystems |
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A3965 Datasheet(HTML) 5 Page - Allegro MicroSystems |
5 / 8 page 3965 DMOS Dual Full Bridge PWM Motor Driver 4 ELECTRICAL CHARACTERISTICS at TA = +25°C, VBB = 20V, VDD = 3.0 V, VSENSE = 0.5 V (unless noted otherwise) Limits Characteristics Symbol Test Conditions Min. Typ. Max. Units Control Logic Reference Input Current IREF VREF = VDD -1 0 1 µA VREF input voltage range VREF 0 VDD- .1 Reference Divider Ratio VREF/VS 6 VREF = 1.5V -5 5 % GM Error VERR (Note 3) VREF = .5V -10 10 % Propagation Delay tPD PWM CHANGE TO SOURCE OFF – 150 – ns PWM CHANGE TO SINK OFF – 150 – ns PWM CHANGE TO SOURCE ON – 1000 – ns PWM CHANGE TO SINK ON – 1000 – ns DISABLE TO SOURCE ON – 200 – ns DISABLE TO SINK ON – 200 – ns tCOD 300 850 1200 ns PWM RC Frequency fOSC R = 1000pf, C = 20K 47.4 Khz Blank Time tBLANK R = 1000pf, C = 20K .8 1.21 1.6 µs Thermal Shutdown Temp. TJ – 165 °C Thermal Shutdown Hysteresis ∆TJ – 15 – °C UVLO Enable Threshold Rising VDD 2.5 2.8 V UVLO Hysteresis 0.05 0.10 – V NOTES: 1. Typical Data is for design information only. 2. Negative current is defined as coming out of (sourcing) the specified device pin. 3. VERR =((VREF/6) – VSENSE)/(VREF/6) |
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