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3961 Folha de dados(PDF) 4 Page - Allegro MicroSystems |
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3961 Folha de dados(HTML) 4 Page - Allegro MicroSystems |
4 / 10 page 3961 DUAL FULL-BRIDGE PWM MOTOR DRIVER 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 ELECTRICAL CHARACTERISTICS at TA = +25°C, VBB = 45 V, VCC = 4.75 V to 5.25 V, VSENSE = 0 V, 30 kW & 1000 pF RC to Ground (unless noted otherwise) (cont.) Limits Characteristic Symbol Test Conditions Min. Typ. Max. Units Reference Output Current IREF OUT 3 k Ω ≤ R D = R1 + R2 ≤ 15 kΩ 90 — 900 µA Ref. Input Offset Current IOS VREF IN = 1 V -2.5 0 1.0 µA Comparator Input Offset Volt. VIO VREF = 0 V -5.0 0 5.0 mV Comparator Input Volt. Range VREF Operating -0.3 — 1.0 V PWM RC Fixed Off-time tOFF RC CT = 1000 pF, RT = 30 kΩ 27 30 33 µs PWM Propagation Delay Time tPWM Comparator Trip to Source OFF — 1.2 2.0 µs PWM Minimum On Time tON(min) CT = 1000 pF ± 5%, RT ≥ 15 kΩ, VCC = 5 V — 2.5 3.6 µs Propagation Delay Times tpd IOUT = ±800 mA, 50% to 90%: ENABLE ON to Source ON — 3.2 — µs ENABLE OFF to Source OFF — 1.2 — µs ENABLE ON to Sink ON — 3.2 — µs ENABLE OFF to Sink OFF — 0.7 — µs PHASE Change to Sink ON — 3.2 — µs PHASE Change to Source ON — 3.2 — µs PHASE Change to Sink OFF — 0.7 — µs PHASE Change to Source OFF — 1.2 — µs Thermal Shutdown Temp. TJ — 165 — ˚C Thermal Shutdown Hysteresis ∆T J —15 — ˚C UVLO Disable Threshold 2.5 2.7 2.9 V UVLO Hysterisis 0.7 0.9 1.1 V Logic Supply Current ICC(ON) VENABLE1 = VENABLE2 = 0.8 V — 65 85 mA ICC(OFF) VENABLE1 = VENABLE2 = 2.4 V — 11 15 Logic Supply Current ∆I CC(ON) VENABLE1 = VENABLE2 = 0.8 V — 0.18 — mA/˚C Temperature Coefficient 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. |
Nº de peça semelhante - 3961 |
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Descrição semelhante - 3961 |
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