Brushless DC Pre-Drivers


PT5639

The PT5639 is a high-speed power MOSFET driver with three independent high and low side referenced output channels for 3-phase gate driver. Built-in deadtime protection and Shoot-through protection that prevent half-bridge against damage. The UVLO circuits prevent malfunction when VCC and VBS are lower than the specified threshold voltage. Novel high-voltage BCD process and common-mode noise canceling technique provide stable operation of high-side drivers under high-dv/dt noise circumstances and excellent negative transient voltage tolerance. PT5639 also includes a 3.3V/5V 50mA LDO, which saving the BOM cost.

FEATURES


● Integrated 90V half-bridge high side driver

● Driver up to 3-phase half-bridge gates

● Built-in bootstrap diode for each high side channel

● Low standby power dissipation: IQVCC<50uA

● Shoot-through protection

● Under voltage lockout for VCC and VBS

● Low operation voltage 0~5.5V for VCC and VBS

● 3.3V, 5V input logic Compatible

● IO+/IO-: +0.5A/-0.8A@VCC=12V, VBS=12V

● Built-in dead time：0.2us(typ.)

● Built-in 3.3V/5V 50mA LDO

● Common-Mode dv/dt Noise Canceling Circuit

● Tolerant to negative transient voltage

● Low di/dt gate drive for better noised immunity

● -40℃ to 125℃ operating range

● Package Type - TSSOP 20/24

                               - QFN 24

APPLICATIONS


● 3-phase Sensor-Less /hall-sensor controlled BLDC fan motor driver

● 3-phase BLDC motor

資源下載

Documentation

TitleFileVersionDate
DatasheetPT5639 REF1.1_E.pdfREF1.12025/12/1

Tools

Application Note