MAX14872 Datasheet | Maxim Integrated

Description The MAX14870/MAX14872 motor drivers provide a small, low-power and simple solution for driving and controlling brushed DC motors and relays with voltages between 4.5V and 36V. Very low driver on-resistance reduces power dissipation. These drivers feature a charge-pump-less design for reduced external ponents and low supply current. Integrated fast-decay current regulation allows useradjustable peak startup motor currents and requires minimal external ponents. A separate voltage-sense input (SNS) reduces current sensing errors due to parasitic trace resistance. The MAX14870/MAX14872 Features shoot-through protection and internal free-wheeling diodes that absorb inductive motor currents. Driver outputs are short-circuit-protected from shorts to ground, to the supply, and between M1 and M2. An active-low FAULT output signals thermal overload and overcurrents during fault conditions. The MAX14870 has PWM and direction-control inputs, while the MAX14872 has forward and reverse inputs for direction control. See the Function Tables. The MAX14870/MAX14872 are available in a 12-pin (3mm x 3mm) TDFN-EP package and operate over the -40°C to +85°C temperature range. Benefits and Features - - Small Package Handles High Power and Reduces Footprint Circuit Size - Up to 2.5A Peak Motor Current - Space-Saving TDFN-EP (3mm x 3mm) Package - Flexible 4.5V- 36V Supply Enables Longer Runtime on Batteries - - Low Power Consumption Runs Cooler and Longer - 280m W (typ) Total Bridge On-Resistance - 1m A (typ) Supply Current at 30k Hz/24V - 10µA (max) Standby Current at 12V - - Simplified Designs Reduces Time to Market - Charge-Pump-Less Architecture - Current Regulation Only Requires a Sense Resistor - Current-Sense Input Simplifies PCB Layout - - Integrated Protection Provides Robust Driving Solution - Short-Circuit-Protected Drivers - Thermal-Shutdown Undervoltage Lockout - Diagnostic FAULT Output - -40°C to +85°C Temperature Range Applications - - Printers and...