The DRV8873-Q1 device is an integrated driver IC for driving a brushed DC motor in automotive applications. Two logic inputs control the H-bridge driver, which consists of four N-channel MOSFETs that drive motors bi-directionally with up to 10-A peak current. The device operates from a single power supply and supports a wide input supply range from 4.5 V to 38 V.
A PH/EN or PWM interface allows simple interfacing to controller circuits. Alternatively, independent half-bridge control is available to drive two solenoid loads.
A current mirror allows the controller to monitor the load current. This mirror approximates the current through the high-side FETs, and does not require a high-power resistor for sensing the current.
A low-power sleep mode is provided to achieve very-low quiescent current draw by shutting down much of the internal circuitry. Internal protection functions are provided for undervoltage lockout, charge pump faults, overcurrent protection, short-circuit protection, open-load detection, and overtemperature. Fault conditions are indicated on an nFAULT pin and through the SPI registers.
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|Part number||Order||Vs (Min) (V)||Vs (Max) (V)||Peak output current (A)||Number of half bridges||Control I/F||RDS(ON) (HS + LS) (mOhms)||Rating||Operating temperature range (C)||Package Group||Package size: mm2:W x L (PKG)||Approx. price (US$)|
Independent 1/2-H PWM
|150||Automotive||-40 to 125||HTSSOP | 24||24HTSSOP: 34 mm2: 4.4 x 7.8 (HTSSOP | 24)||1.91 | 1ku|
||6.5||45||3.6||2||PWM||565||Automotive||-40 to 125||SO PowerPAD | 8||8SO PowerPAD: 19 mm2: 3.9 x 4.89 (SO PowerPAD | 8)||1.14 | 1ku|
||6.5||45||3.6||2||PWM||565||Automotive||-40 to 125||SO PowerPAD | 8||8SO PowerPAD: 19 mm2: 3.9 x 4.89 (SO PowerPAD | 8)||1.15 | 1ku|