ZHCSPT6D July 2023 – June 2024 TPSM8287A06 , TPSM8287A10 , TPSM8287A12 , TPSM8287A15
PRODUCTION DATA
During initialization, the device reads the state of the VSETx pins and selects the default output voltage according to Table 7-2. Note that the VSETx pins also select the I2C target address of the device and the setting of the VRANGE bits located in register CONTROL2. The VSETx pins are only read during a power cycle of VIN or by setting RESET = 1 through the I2C interface. Changing the configuration after VIN is present does not affect the content of the registers or the I2C address. Make sure that there is no stray current path connected to the VSETx pins and that the parasitic capacitance between the VSETx pins and GND is less than 100 pF. For proper operation, the input voltage needs to be at least 1.4 V above the selected output voltage.
VSET3 | VSET2 | VSET1 | I2C ADDRESS | VRANGE [1:0] | VOUT VOLTAGE |
---|---|---|---|---|---|
GND | GND | VIN | 0x40 | 0b10 | 0.45 V |
GND | VIN | GND | 0x40 | 0b10 | 0.50 V |
GND | VIN | VIN | 0x40 | 0b10 | 0.55 V |
VIN | GND | GND | 0x40 | 0b10 | 0.60 V |
VIN | GND | VIN | 0x40 | 0b10 | 0.65 V |
VIN | VIN | GND | 0x40 | 0b10 | 0.70 V |
VIN | VIN | VIN | 0x40 (1) | 0b10 | 0.75 V |
47 kΩ to GND | GND | GND | 0x41 (1) | 0b11 | 0.80 V |
47 kΩ to GND | GND | VIN | 0x41 | 0b11 | 0.85 V |
47 kΩ to GND | VIN | GND | 0x41 | 0b11 | 0.90 V |
47 kΩ to GND | VIN | VIN | 0x41 | 0b11 | 0.95 V |
47 kΩ to VIN | GND | GND | 0x41 | 0b11 | 1.00 V |
47 kΩ to VIN | GND | VIN | 0x41 (1) | 0b11 | 1.05 V |
47 kΩ to VIN | VIN | GND | 0x41 (1) | 0b11 | 1.10 V |
47 kΩ to VIN | VIN | VIN | 0x41 | 0b11 | 1.15 V |
GND | 47 kΩ to GND | GND | 0x42 (1) | 0b11 | 1.20 V |
GND | 47 kΩ to GND | VIN | 0x42 | 0b11 | 1.25 V |
GND | 47 kΩ to VIN | GND | 0x42 | 0b11 | 1.30 V |
GND | 47 kΩ to VIN | VIN | 0x42 | 0b11 | 1.35 V |
VIN | 47 kΩ to GND | GND | 0x42 | 0b11 | 1.40 V |
VIN | 47 kΩ to GND | VIN | 0x42 | 0b11 | 1.45 V |
VIN | 47 kΩ to VIN | GND | 0x42 | 0b11 | 1.50 V |
VIN | 47 kΩ to VIN | VIN | 0x42 | 0b11 | 1.55 V |
GND | GND | 47 kΩ to GND | 0x43 | 0b11 | 1.60 V |
GND | GND | 47 kΩ to VIN | 0x43 | 0b11 | 1.65 V |
GND | VIN | 47 kΩ to GND | 0x43 | 0b11 | 1.70 V |
GND | VIN | 47 kΩ to VIN | 0x43 | 0b11 | 1.75 V |
VIN | GND | 47 kΩ to GND | 0x43 | 0b11 | 1.80 V |
VIN | GND | 47 kΩ to VIN | 0x43 | 0b11 | 1.85 V |
VIN | VIN | 47 kΩ to GND | 0x43 | 0b11 | 1.90 V |
VIN | VIN | 47 kΩ to VIN | 0x43 | 0b11 | 1.95 V |
47 kΩ to GND | 47 kΩ to GND | GND | 0x40 | 0b11 | 2.00 V |
47 kΩ to GND | 47 kΩ to GND | VIN | 0x40 | 0b11 | 2.05 V |
47 kΩ to GND | 47 kΩ to VIN | GND | 0x40 | 0b11 | 2.10 V |
47 kΩ to GND | 47 kΩ to VIN | VIN | 0x40 | 0b11 | 2.15 V |
47 kΩ to VIN | 47 kΩ to GND | GND | 0x40 | 0b11 | 2.20 V |
47 kΩ to VIN | 47 kΩ to GND | VIN | 0x40 | 0b11 | 2.25 V |
47 kΩ to VIN | 47 kΩ to VIN | GND | 0x40 | 0b11 | 2.30 V |
47 kΩ to VIN | 47 kΩ to VIN | VIN | 0x40 | 0b11 | 2.35 V |
47 kΩ to GND | GND | 47 kΩ to GND | 0x41 | 0b11 | 2.40 V |
47 kΩ to GND | GND | 47 kΩ to VIN | 0x41 | 0b11 | 2.45 V |
47 kΩ to GND | VIN | 47 kΩ to GND | 0x41 | 0b11 | 2.50 V |
47 kΩ to GND | VIN | 47 kΩ to VIN | 0x41 | 0b11 | 2.55 V |
47 kΩ to VIN | GND | 47 kΩ to GND | 0x41 | 0b11 | 2.60 V |
47 kΩ to VIN | GND | 47 kΩ to VIN | 0x41 | 0b11 | 2.65 V |
47 kΩ to VIN | VIN | 47 kΩ to GND | 0x41 | 0b11 | 2.70 V |
47 kΩ to VIN | VIN | 47 kΩ to VIN | 0x41 | 0b11 | 2.75 V |
GND | 47 kΩ to GND | 47 kΩ to GND | 0x42 | 0b11 | 2.80 V |
GND | 47 kΩ to GND | 47 kΩ to VIN | 0x42 | 0b11 | 2.85 V |
GND | 47 kΩ to VIN | 47 kΩ to GND | 0x42 | 0b11 | 2.90 V |
GND | 47 kΩ to VIN | 47 kΩ to VIN | 0x42 | 0b11 | 2.95 V |
VIN | 47 kΩ to GND | 47 kΩ to GND | 0x42 | 0b11 | 3.00 V |
VIN | 47 kΩ to GND | 47 kΩ to VIN | 0x42 | 0b11 | 3.05 V |
VIN | 47 kΩ to VIN | 47 kΩ to GND | 0x42 | 0b11 | 3.10 V |
VIN | 47 kΩ to VIN | 47 kΩ to VIN | 0x42 | 0b11 | 3.15 V |
47 kΩ to GND | 47 kΩ to GND | 47 kΩ to GND | 0x43 | 0b11 | 3.20 V |
47 kΩ to GND | 47 kΩ to GND | 47 kΩ to VIN | 0x43 | 0b11 | 3.25 V |
47 kΩ to GND | 47 kΩ to VIN | 47 kΩ to GND | 0x43 | 0b11 | 3.30 V |
47 kΩ to GND | 47 kΩ to VIN | 47 kΩ to VIN | 0x43 | 0b11 | 3.35 V |
47 kΩ to VIN | 47 kΩ to GND | 47 kΩ to GND | 0x44 | 0b10 | 0.75 V |
GND | GND | GND | 0x40 | 0b11 | 0.80 V |
47 kΩ to VIN | 47 kΩ to GND | 47 kΩ to VIN | 0x44 | 0b11 | 1.05 V |
47 kΩ to VIN | 47 kΩ to VIN | 47 kΩ to GND | 0x44 | 0b11 | 1.10 V |
47 kΩ to VIN | 47 kΩ to VIN | 47 kΩ to VIN | 0x44 | 0b11 | 1.20 V |
A second I2C address for the same output voltage is found at the bottom of this table
During start-up, the output voltage ramps up to the target value set by the VSETx pins before ramping up or down to any new value programmed to the device over the I2C interface. If the user programs new output voltage setpoints (VOUT[7:0]), output voltage range (VRANGE[1:0]), or soft-start time (SSTIME[1:0]) settings when the device has already begun the soft-start sequence, the device ignores the new values until the soft-start sequence is complete. When changing VOUT[7:0], VRAMP[1:0], or SSTIME[1:0] while EN is low, the device uses the new values the next time it is enabled.