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A3969SETTR-T Datasheet(PDF) 5 Page - Allegro MicroSystems |
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A3969SETTR-T Datasheet(HTML) 5 Page - Allegro MicroSystems |
5 / 9 page Dual Full-Bridge PWM Motor Driver A3969 5 Allegro MicroSystems, Inc. 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 www.allegromicro.com PWM RC Frequency fosc CT = 680 pF, RT = 56 kΩ 22.9 25.4 27.9 kHz PWM Propagation Delay Time tPWM Comparator Trip to Source OFF — 1.0 1.4 μs Cycle Reset to Source ON — 0.8 1.2 μs Cross-Over Dead Time tcodt 100 Ω Load to 15 V 0.2 1.3 3.0 μs Propagation Delay Times tpd IOUT = ±650 mA, 50% to 50%; VBB = 15 V: ENABLE ON to Source ON — 125 — ns ENABLE OFF to Source OFF — 500 — ns ENABLE ON to Sink ON — 200 — ns ENABLE OFF to Sink OFF — 200 — ns PHASE Change to Sink ON — 1500 — ns PHASE Change to Sink OFF — 200 — ns PHASE Change to Source ON — 1500 — ns PHASE Change to Source OFF — 200 — ns Thermal Shutdown Temp. TJ — 165 — °C Thermal Shutdown Hysteresis ΔTJ —15 — °C UVLO Enable Threshold VT(UVLO)+ Increasing VCC — 2.75 3.0 V UVLO Hysteresis VT(UVLO)hys 0.07 0.10 — V Logic Supply Current ICC(ON) VENABLE 1 = VENABLE 2 = 0.8 V — — 50 mA ICC(OFF) VENABLE 1 = VENABLE 2 = 2.4 V — — 9.0 mA Limits Characteristic Symbol Test Conditions Min. Typ. Max. Units ELECTRICAL CHARACTERISTICS at TA = +25°C, VBB = 30 V, VCC = 3.0 V to 3.6 V, VREF = 1.7 V, VS = 0 V, 56 k Ω and 680 pF RC to Ground (unless noted otherwise) (cont.) Control Logic (continued) NOTES: 1. Typical Data is for design information only. 2. Negative current is defined as coming out of (sourcing) the specified device terminal. |
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