Motor Drivers Feature Power Management

Nov 29, 2006 2:59 PM

Toshiba America Electronic Components’ three high-voltage three-phase motor drivers feature built-in power management (PWM) circuits for brushless dc motors, air conditioner fans, and pump motors. The TPD4104K, TPD4111K and TPD4112K single chip inverter ICs are manufactured using a high-voltage silicon-on-insulator (SOI) trench isolation process to achieve this level of integration. The junction temperature for each device is rated for 150°C.

The TPD4111K is rated for 250 Vdc output of 1 A. The TPD4112K is a 500-V rated device with a dc output of 1 A, and the TPD4104K is a 500-V rated device with dc output of 2 A. In addition to the power management capability, the new motor drivers feature a three-phase, full-bridge distribution circuit with level-shift type high-side driver and low-side driver, output insulated gate bipolar transistor (IGBT), and built-in fast recovery diode (FRD).

V_cc for the TPD4111K and TPD4112K is 20 V. For the TPD4104, V_cc is 18 V. The current consumed by the voltage regulator is 50 mA for all devices.

Hall amplifier input signals and microcomputer control signals enable speed control of a brushless dc motor connected directly to the driver. Use of a bootstrap system with a built-in bootstrap diode eliminates the need for a high-side driver power supply. The three motor drivers are available in HZIP23 packages, measuring 31.5 mm x 16.1 mm x 5.1 mm thick, with an option for leads facing left (LBR), right (LBF) or down (LB2).

Customer samples of the TPD4104K, TPD4111K and TPD4112K are available now. Pricing for sample quantities is $5.50, $3 and $3.50 each, respectively.