FAH4830MPX
FAH4830MPX Datasheet
FAH4830 Haptic Driver for DC Motors ERMs and Linear Resonant Actuators LRAs
| Part | Datasheet |
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FAH4830MPX |
FAH4830MPX (pdf) |
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| FAH4830 Haptic Driver for DC Motors ERMs and Linear Resonant Actuators LRAs March 2013 FAH4830 Haptic Driver for DC Motors ERMs and Linear Resonant Actuators LRAs • Direct Drive of ERM and LRA Motors • External PWM Input 10 kHz to 50 kHz • External Motor Enable/Disable Input • Internal Mode-Select Register ERM or LRA • Low Standby Current <500 nA • Fast Wake-up Time • Nearly Rail-to-Rail Output Swing • Register-Based Control by I2C • Over Driving Motor Control • Under-Voltage, Over-Current, and Over- Temperature Protections • Settable Filter and External Gain Control • Package 10-Lead MLP • Mobile Phones • Handheld Devices • Any Key-Pad Interface Related Resources • AN-5067 PCB Land Pattern Design and Surface- Mount Guidelines for MLP Packages The FAH4830 is a high-performance enhanced haptic drive for mobile phone and other hand-held devices. The haptic driver takes a single-ended PWM input signal to control a DC motor. It can drive both Eccentric Rotating Mass ERM and Linear Resonant Actuator LRA motors. The device utilizes an external 10 kHz to 50 kHz PWM signal capable of meeting the wide range of resonant frequencies. The FAH4830 has its own register maps accessible via I2C serial communication. A gain control setting can be used to help prevent PWM noise from getting into the motor and to control the maximum output voltage on the motor. For ERM motors, the over-drive control block is designed to control the inertial momentum of the motor. Serial I2C Interface Bandgap Reference UVLO Programmable Control Logic and Register Differential Driver GND MDN C1 GAIN Figure Block Diagram Ordering Information Part Number Operating Temperature Range FAH4830MPX -40°C to +85°C Package 10-Lead, Dual, JEDEC MO-229, 3mm Square, Molded Leadless Package MLP Packing Method 3000 Units on Tape & Reel 2012 Fairchild Semiconductor Corporation FAH4830 • FAH4830 Haptic Driver for DC Motors ERMs and Linear Resonant Actuators LRAs Pin Configuration Figure Pin Assignments Top View Pin Definitions Name Pin # Type Power Power Ground Output Positive motor driver output Output Negative motor driver output GAIN Input Gain control for motor driving 39 nF capacitor required to tied to MDN Input PWM input HEN SDA SCL Input Haptic motor enable/disable HIGH enable, LOW disable Input I2C data input Input I2C clock input Note The exposed DAP should be connected to ground. 2012 Fairchild Semiconductor Corporation FAH4830 Haptic Driver for DC Motors ERMs and Linear Resonant Actuators LRAs Absolute Maximum Ratings Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only. Parameter VDD DC Supply Voltage VIO Analog and Digital I/O All Input and Output Pins Min. Max. VCC+0.3 Unit Reliability Information Parameter |
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