Hello,
May I reconfirm about the impedance of the GL_x ?
Our customer uses the DRV8303,has some questions about the impedance
of the GL_x pin.
Q1)It is mentioned the impedance of GL_x is from 1.6kohm to 2.4kohm.(Rgate-off)
Is there a resistor between GL_x and GND?
Q2)Could you give me the I-V characteristics (GL_x current vs GL_x voltage)
when the EN_GATE is Low?
I'm sorry but I don't have the EVM.
Q3)See page 10 Figure 4 and 5, the voltage of GVDD is approximately 11V.
How about the voltage of GVDD when the EN_GATE is Low?
The customer design the protect circuit of their total system.
When the MCU is failure the customer wants to all low side external FET active.
(like a short brake)
When the MCU is failure, the EN_GATE is Low, external FET is inactive.
So, the customer input the voltage to the gate of the external FET by
external circuit. Then the customer wants to know the impedance and circuit
of the GL_x pin.
Best Regards,
Naoki Aoyama