LTC3882_15 Datasheet, PDF (72/104 Pages) Linear Technology – Dual Output PolyPhase Step-Down DC/DC Voltage Mode Controller with Digital Power System Management

LTC3882
PMBus COMMAND DETAILS (PWM Configuration)
MFR_PWM_CONFIG_LTC3882
The MFR_PWM_CONFIG_LTC3882 command controls PWM-related clocking for the LTC3882. Both PWM channels
must be turned off by the RUNn pins, OPERATION command, or their combination, to process this command. If this
command is sent while either PWM controller is operating, the LTC3882 will NACK the command byte, ignore the
command and its data, and assert a BUSY fault.
Supported Values:
BIT
MEANING
7
(Reserved, must write as 0).
6
(Reserved, must write as 0).
5
(Reserved).
4
SHARE_CLK configuration:
0: SHARE_CLK continuously enabled once VINSNS ≥ VIN_ON after initialization.
1: SHARE_CLK always forced low if VINSNS ≤ VIN_OFF, then held low until VINSNS ≥ VIN_ON.
3
(Reserved).
2:0
Value
Channel 0
Phase
Channel 1
111b
135°
315°
110b
90°
270°
101b
45°
225°
100b
0°
180°
011b
120°
300°
010b
60°
240°
001b
0°
180°
000b
0°
120°
Maximum Duty
Cycle
87.5%
83.3%
Phase is expressed from the falling edge of SYNC to the falling edge of TG/PWM.
This command has one data byte.
3882f
72
For more information www.linear.com/LTC3882