LV8498CTGEVB

LV8498CTGEVB is a evaluation board for LV8498CT motor driver. The LV8498CT is a constant current driver IC for voice coil motors that supports I2C control integrating a digital/analog converter (DAC). It uses an ultraminiature WLP package and includes a current detection resistor for constant current control, which makes the IC ideal for miniaturization of camera modules intended for use in camera equipped mobile phones. The output transistor has a low on resistance of 1ohm and the resistance of the built in current detection resistor is 1ohm, which minimizes the voltage loss and helps withstand voltage drop in VCC. The function is incorporated, which, by changing the current in a stepped pattern while taking time at rise and fall of the output current, provides the current a slope, improving the converging stability of the voice coil motor (current slope function).

• Constant current driver for voice coil motors
• Constant current control enabled by DAC (10bits)
• Wide operating voltage range (2.2V to 5.0V)
• Built in current detection resistor
• 6 pin WLP package used
• Built in voltage drop protection circuit (VCC is 2V output off)
• Built in thermal protection circuit
• Low output block total resistance of 2ohm helps withstand voltage drop in VCC
• Built in VCM overshoot preventive function (current slope function)

Applications

Motor Drive & Control, Portable Devices, Wireless, Consumer Electronics