Tool/software:
Dear Sir.
I try to check the output control at the TPS7H2140-SEP EVB.
Test Conditions.
1. Input: 28VDC to J1
2. EN1: High (V_IO = 5V), EN2 = GND, EN3 = GND, EN4 = GND.
3. OUT1 ~ OUT4 to connect 10kohm load conncet to GND
4. THER = GND, DIAG_EN = GND, SEH = GND, SEL = GND
5. CL = 1.5k, J11 = Open
The OUT1 = 0V when I turn on the power(28V Input).
What's the problem?
The OUT1~OUT4 go to 28V when I change the EN1: High , EN2 = GND, EN3 = GND, EN4 = High.
I don't understand this sequence.
I think the OUT1~OUT4 are controlled with EN1~EN4 individually.
Is there any wrong setting?
Please help me.