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A4990KLPTR-T Datasheet(PDF) 5 Page - Allegro MicroSystems |
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A4990KLPTR-T Datasheet(HTML) 5 Page - Allegro MicroSystems |
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5 / 13 page  Automotive Dual Full Bridge Driver A4990 5 Allegro MicroSystems, LLC 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com ELECTRICAL CHARACTERISTICS Valid at TJ = –40°C to 150°C, VBB = 7 to 28 V; unless otherwise specified Characteristic Symbol Test Conditions Min. Typ. Max. Unit Supplies Load Supply Voltage Range1 VBB(func) Functional, no unsafe states 0 – 50 V VBB(op) Outputs driving 6 – VBBOV V Load Supply Quiescent Current IBBQ INH = high, IN1 = IN3 = low, IN2 = IN4 = high – 7 10 mA INH < 0.5 V, sleep mode – 1 5 μA Charge Pump Voltage VCP VBB > 7.5 V, INH = high – VBB + 6.7 – V Internal Regulator Voltage VREG INH = high, VBB > 7.5 V – 7.2 – V Internal Regulator Dropout Voltage VREGDO INH = high, VBB > 5.6 V – 100 200 mV Motor Bridge Output High-Side On-Resistance2 RDS(on)H VBB = 13.5 V, IOUT = –1 A, TJ = 25°C – 500 600 mΩ VBB = 13.5 V, IOUT = –1 A, TJ = 150°C – 900 1100 mΩ VBB = 7 V, IOUT = –1 A, TJ = 25°C – 625 750 mΩ High-Side Body Diode Forward Voltage VfH If = 1 A – – 1.4 V Low-Side On-Resistance RDS(on)L VBB = 13.5 V, IOUT = 1 A, TJ = 25°C – 500 600 mΩ VBB = 13.5 V, IOUT = 1 A, TJ = 150°C – 900 1100 mΩ VBB = 7 V, IOUT = 1 A, TJ = 25°C – 625 750 mΩ Low-Side Body Diode Forward Voltage2 VfL If = –1 A – – 1.4 V Dead Time tDEAD – 500 – ns Output Leakage Current2 IOUT(lkg) INH = high, VOUT = VBB –120 –65 – μA INH = high, VOUT = 0 V –200 –120 – μA INH = low, VOUT = VBB – <1.0 20 μA INH = low, VOUT = 0 V –20 <1.0 – μA Current Limit Internal Oscillator Frequency fOSC 3.2 4 4.8 MHz Blank Time tBLANK 2800 3500 4200 ns PWM Frequency fPWM 17.3 21.7 26 kHz Internal Reference Voltage VREF 1.1 1.2 1.3 V Maximum Sense Voltage VSMAX – 125 – mV Current Trip Point Error3 ErrITrip – – ±10 % Logic Input and Output Logic Input Low Voltage VIL – – 0.8 V Logic Input Low Voltage for Sleep Mode (INH pin) VILS – – 0.5 V Logic Input High Voltage VIH 2.0 – – V Logic Input Hysteresis VIhys 100 300 – mV Continued on the next page… |
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