DRV8871DDAR.B

Part: DRV8871 (DRV8871DDAR) — Texas Instruments

Type: Brushed DC Motor Driver (H-Bridge) with Internal Current Regulation

Description: 6.5–45 V, 3.6 A peak H-bridge brushed DC motor driver with 565 mΩ typical total RDS(on) (HS + LS), PWM control interface, and current regulation without an external sense resistor.

Operating Conditions:

• Supply voltage (VM): 6.5–45 V
• Operating ambient temperature: -40 to 125 °C
• Logic input voltage: 0–5.5 V; PWM frequency up to 200 kHz
• Peak output current: up to 3.6 A

Absolute Maximum Ratings:

• Max supply voltage (VM): 50 V
• Max output current (100% duty cycle): 3.5 A
• Max logic input voltage (IN1, IN2): 7 V
• Max operating junction temperature: 150 °C
• Storage temperature: -65 to 150 °C

Key Specs:

• RDS(on) at VM = 24 V, I = 1 A, fPWM = 25 kHz, TA = 25 °C: high-side 307 mΩ typ / 360 mΩ max; low-side 258 mΩ typ / 320 mΩ max
• VM operating supply current (VM = 12 V): 3 mA typ, 10 mA max
• VM sleep current (VM = 12 V): 10 μA max
• Current regulation: ITRIP (A) = 64 kV / RILIM (kΩ); VILIM 59–69 kV (IOUT = 1 A); minimum RILIM 15 kΩ
• Overcurrent protection trip: 3.7 A min, 4.5 A typ, 6.4 A max; retry time 3 ms typ
• VM UVLO: falling 6.1 V typ / 6.4 V max; rising 6.3 V typ / 6.5 V max
• Logic thresholds: VIL 0.5 V max, VIH 1.5 V min; 100 kΩ internal pulldowns
• Propagation delay 0.7 μs typ (1 μs max); output dead time 220 ns typ; thermal shutdown 175 °C typ (150 °C min), 40 °C hysteresis
• RθJA: 41.1 °C/W (DDA HSOP-8)

Features:

• H-bridge driver for one DC motor, one winding of a stepper motor, or other loads
• PWM control interface (IN1/IN2) with brake/slow-decay and coast modes
• Current regulation without a sense resistor, set by a single resistor on ILIM
• Low-power sleep mode when both inputs are low
• Integrated protection: VM UVLO, overcurrent protection, thermal shutdown
• Automatic fault recovery

Applications:

• Printers
• Appliances
• Industrial equipment
• Other mechatronic applications

Package:

• HSOP (8) with PowerPAD, DDA — 4.90 mm × 6.00 mm

• 1 · H-Bridge Motor Driver
• -Drives One DC Motor, One Winding of a Stepper Motor, or Other Loads
• Wide 6.5-V to 45-V Operating Voltage
• 565-m Ω Typical RDS(on) (HS + LS)
• 3.6-A Peak Current Drive
• PWM Control Interface
• Current Regulation Without a Sense Resistor
• Low-Power Sleep Mode
• Small Package and Footprint
• -8-Pin HSOP With PowerPAD™
• -4.9 × 6 mm
• Integrated Protection Features
• -VM Undervoltage Lockout (UVLO)
• -Overcurrent Protection (OCP)
• -Thermal Shutdown (TSD)
• -Automatic Fault Recovery

• Printers
• Appliances
• Industrial Equipment
• Other Mechatronic Applications

1

Pin Functions

TA = 25°C, over recommended operating conditions (unless otherwise noted)

over operating free-air temperature range (unless otherwise noted) (1)

over operating free-air temperature range (unless otherwise noted)

The DRV8871 device is typically used to drive one brushed DC motor.