MAX15569 Datasheet, PDF (33/41 Pages) Maxim Integrated Products – 2-Phase/1-Phase QuickTune-PWM Controller with Serial I2C Interface

MAX15569
2-Phase/1-Phase QuickTune-PWM Controller with
Serial I²C Interface
Output-Voltage Set Register (0x07h)
The SETVOUT register slews the output voltage 0.5µs
after the SETVOUT command is acknowledged. The
slew rate of the change in output voltage is equal to the
value set by SRREG. The device DAC supports volt-
ages between 0.5V and 1.6V. See Table 3 for the output-
voltage codes and Table 10 for bit descriptions.
Current Monitor Register (0x08h)
The device includes a current monitoring function. An
internal ADC converts the analog signals from the IMON
pin output to 8-bit values in the IMON register. The ADC
converter filters the current-sense signal by averaging
over four samples. The acquisition rate is 100µs. The
content of this register is updated every 400µs. For more
information on how to set the desired value for IMON
resolution, see the Current Monitoring (IMON) section.
See Table 11 for bit descriptions.
Table 10. SETVOUT (Output-Voltage Set Register)
I²C COMMAND
0x07
BIT
D7
D6
D5
D4
D3
D2
D1
D0
DEFAULT
0x33
NAME
VID_7
VID_6
VID_5
VID_4
VID_3
VID_2
VID_1
VID_0
TYPE
R
R
R
R
R
R
R
R
D7
D6
D5
D4
D3
VID_7 VID_6 VID_5 VID_4 VID_3
DESCRIPTION
Don’t care bit. Returns 0 when read.
MSB of the maximum allowed output voltage code
D2
VID_2
D1
VID_1
See Table 3 for the actual output-voltage code.
LSB of the maximum allowed output-voltage code. 10mV resolution.
D0
VID_0
Table 11. IMON (Current Monitor Register)
I²C COMMAND
DEFAULT
D7
D6
D5
D4
D3
D2
D1
D0
0x08h
0x00h
TYPE
—
—
—
—
—
—
—
—
BIT
NAME
DESCRIPTION
D7
IM_7
R
—
D6
IM_6
R
—
D5
IM_5
R
—
D4
IM_4
R
—
D3
IM_3
R
—
D2
IM_2
R
—
D1
IM_1
R
—
D0
IM_0
R
—
www.maximintegrated.com
Maxim Integrated │  33