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A3959 Datasheet(PDF) 5 Page - Allegro MicroSystems |
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A3959 Datasheet(HTML) 5 Page - Allegro MicroSystems |
5 / 11 page DMOS Full-Bridge PWM Motor Driver A3959 5 Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com ELECTRICAL CHARACTERISTICS (continued) at TA = +25°C, VBB = 50 V, VDD = 5.0 V, VSENSE = 0.5 V, fPWM < 50 kHz (unless noted otherwise) Characteristics Symbol Test Conditions Min. Typ. Max. Units Reference Divider Ratio – – 10 – – Gm Error (Note 3) EGm VREF = VDD – – ±4.0 % VREF = 0.5 V – – ±14 % Propagation Delay Times tpd 0.5 Ein to 0.9 Eout: PWM change to source on 600 750 1200 ns PWM change to source off 50 150 350 ns PWM change to sink on 600 750 1200 ns PWM change to sink off 50 100 150 ns Thermal Shutdown Temp. TJ – 165 – °C Thermal Shutdown Hysteresis ∆TJ –15 – °C UVLO Enable Threshold UVLO Increasing VDD 3.90 4.2 4.45 V UVLO Hysteresis ∆UVLO 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 terminal. 3. Gm error = ([VREF/10] – VSENSE)/(VREF/10) where VSENSE = ITRIP•RS. |
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