Does any one have problem with “PMIC TPS6594”
I am having problem, PMIC TPS6594 doesn’t work.
When I supplied VCCA 3.15V, reading status I2C registers of master and slave is stable. But register 0x62 saying “VCCA input voltage has decreased below the under-voltage monitoring level”.
When I supplied VCCA 3.3V, reading status I2C is very bad, sometime all zero or failed.
When I read register 0x2C, value is 0x3F, means input 3.3V and +/-10%. So I think 3.1V should be OK but I am not sure if it is problem.
Below is register values are read when apply 3.1V.
Master (when provide 3.1V)
register: 0x5a = 0xba
register: 0x5b = 0x00
register: 0x5c = 0x00
register: 0x5d = 0x00
register: 0x5e = 0x00
register: 0x5f = 0x10
register: 0x60 = 0x00
register: 0x61 = 0x00
register: 0x62 = 0x02
register: 0x63 = 0x00
register: 0x64 = 0x00
register: 0x65 = 0x02
register: 0x66 = 0x01
register: 0x67 = 0x08
register: 0x68 = 0x00
register: 0x69 = 0x06
register: 0x6a = 0x00
register: 0x6b = 0x00
register: 0x6c = 0x00
Slave: (when provide 3.1V)
register: 0x5a = 0xb6
register: 0x5b = 0x00
register: 0x5c = 0x00
register: 0x5d = 0x00
register: 0x5e = 0x00
register: 0x5f = 0x10
register: 0x60 = 0x00
register: 0x61 = 0x00
register: 0x62 = 0x02
register: 0x63 = 0x08
register: 0x64 = 0x02
register: 0x65 = 0x00
register: 0x66 = 0x01
register: 0x67 = 0x0a
register: 0x68 = 0x00
register: 0x69 = 0x06
register: 0x6a = 0x00
register: 0x6b = 0x00
register: 0x6c = 0x00