产品简介

BL8636 are full bridge drivers to control power devices like MOS-transistors or IGBTs in 3-phase systems with a maximum blocking voltage of +600 V.
The three independent drivers are controlled at the low-side using CMOS and LSTTL compatible signals, down to 3.3V logic.
BL8636 includes an under-voltage detection unit with hysteresis characteristic and over-current detection. The over-current level is adjusted by choosing the resistor value and the threshold level at pin ITRIP. Both error conditions (under-voltage and over-current) lead to a definite shut down of all six switches. An error signal is provided at the FAULTB open drain output pin. The blocking time after
over-current can be adjusted with an RC-network at pin RCIN. Therefore, the resistor RRCIN is optional.
BL8636 typical output current can be given with 300mA for pull-up and 600mA for pull down. Because of system safety reasons a 290ns dead time has been realized. The function of inputs EN and ITRIP can optionally be extended with over-temperature detection, using an external NTC resistor, diodes and resistor network.

优势特点

• Fully operate up to 600V

• Gate drive supply range from 10V to 20V

• Built-in dead-time protection

• Shoot-through protection

• Independent Enable/disable input and fault reporting

• Shut down all switches during error conditions

• Adjustable fault clear timing

• 3.3 V/5V/15V input logic compatible

• Tolerant to negative transient voltage, dV/dt immune

• Matched propagation delays for all channels

• Matched dead time

• -40°C to 125°C operating range

• SOP28 Package available