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DRV401AIDWPG4 Datasheet(PDF) 3 Page - Texas Instruments |
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DRV401AIDWPG4 Datasheet(HTML) 3 Page - Texas Instruments |
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3 / 36 page  DRV401 SBVS070B − JUNE 2006 − REVISED MAY 2009 www.ti.com 3 ELECTRICAL CHARACTERISTICS Boldface limits apply over the specified temperature range: TJ = −40°C to +125°C. At TA = +25°C and VDD1 = VDD2 = +5V with external 100kHz filter BW, and zero output current ICOMP, unless otherwise noted. DRV401 PARAMETER CONDITIONS MIN TYP MAX UNITS DIFFERENTIAL AMPLIFIER RL = 10kΩ to 2.5V, VREFIN = 2.5V OFFSET VOLTAGE Offset Voltage, RTO(1)(2) VOS Gain 4V/V ±0.01 ±0.1 mV Drift, RTO(2) dVOS/dT ±0.1 ±1(3) µV/°C vs Common-Mode, RTO CMRR −1V to +6V, VREF = 2.5V ±50 ±250 µV/V vs Power-Supply, RTO PSRR VREF not included ±4 ±50 µV/V SIGNAL INPUT Common-Mode Voltage Range −1 (VDD) + 1 V SIGNAL OUTPUT Signal Over-Range Indication (OVER-RANGE), Delay(2) VIN = 1V Step, See Notes 2 and 3 2.5 to 3.5 µs Voltage Output Swing From Negative Rail(2), OVER-RANGE Trip Level I = +2.5mA, CMP Trip Level +48 +85 mV Voltage Output Swing From Positive Rail(2), OVER-RANGE Trip Level I = −2.5mA, CMP Trip Level VDD − 85 VDD − 48 mV Short-Circuit Current(2) ISC VOUT Connected To GND −18 mA VOUT Connected To VDD +20 mA Gain, VOUT/VIN_DIFF 4 V/V Gain Error ±0.02 ±0.3 % Gain Error Drift ±0.1 ppm/ °C Linearity Error RL = 1kΩ 10 ppm FREQUENCY RESPONSE Bandwidth(2) BW−3dB 2 MHz Slew Rate(2) SR CMVR = −1V to = +4V 6.5 V/ µs Settling Time, Large-Signal(2) dV ± 2V to 1%, No External Filter 0.9 µs Settling Time(2) dV ± 0.4V to 0.01% 14 µs INPUT RESISTANCE Differential 16.5 20 23.5 k Ω Common-Mode 41 50 59 k Ω External Reference Input 41 50 59 k Ω NOISE Output Voltage Noise Density, f = 1kHz, RTO(2) en Compensation Loop Disabled 170 nV/ √Hz COMPENSATION LOOP DC STABILITY Probe f = 250kHz, RLOAD = 20Ω Offset Error(4) Deviation from 50% PWM, Pin Gain = L 0.03 % Offset Error Drift(2) Deviation from 50% PWM, Pin Gain = L 7.5 ppm/ °C Gain, Pin Gain = L(2) |VICOMP1| − |VICOMP2| −200 25 200 ppm/V Power-Supply Rejection Ratio PSRR Probe Loop f = 250kHz 500 ppm/V FREQUENCY RESPONSE Open-Loop Gain, Two Modes, 7.8kHz Pin Gain H/L 24/32 dB PROBE COIL LOOP Input Voltage Clamp Range Field Probe Current < 50mA −0.7 to VDD + 0.7 V Internal Resistor, IS1 or IS2 to VDD1(2) RHIGH 47 59 71 Ω Internal Resistor, IS1 or IS2 to GND1(2) RLOW 60 75 90 Ω Resistance Mismatch Between IS1 and IS2(2) ppm of RHIGH + RLOW 300 1500 ppm Total Input Resistance(3) 134 200 W Comparator Threshold Current(3) 22 28 34 mA Minimum Probe Loop Half-Cycle(2) 250 280 310 ns Probe Loop Minimum Frequency 250 kHz No Oscillation Detect (Error) Suppression 35 µs COMPENSATION COIL DRIVER, H-BRIDGE Peak Current(2) VICOMP1 − VICOMP2 = 4.0VPP 250 mA Voltage Swing 20 Ω Load 4.2 VPP Output Common-Mode Voltage VDD2/2 V Wire Break Detect, Threshold Current(5) ICOMP1 and ICOMP2 Railed 33 57 mA |
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