LTC2977_15 Datasheet, PDF (36/94 Pages) Linear Technology – 8-Channel PMBus Power System Manager Featuring Accurate Output Voltage Measurement

LTC2977
PMBus Command Description
Output Voltage Related Commands
VOUT_COMMAND, VOUT_MAX, VOUT_MARGIN_HIGH, VOUT_MARGIN_LOW, VOUT_OV_FAULT_LIMIT, VOUT_
OV_WARN_LIMIT, VOUT_UV_WARN_LIMIT, VOUT_UV_FAULT_LIMIT, POWER_GOOD_ON and POWER_GOOD_OFF
These commands use the same format and provide various servo, margining, and supervising limits for a channel’s
output voltage. When odd channels are configured to measure current, the OV_WARN_LIMIT, UV_WARN_LIMIT,
OV_FAULT_LIMIT and UV_FAULT_LIMIT commands are not supported.
Data Contents
BIT(S) SYMBOL
b[15:0] Vout_command[15:0],
Vout_max[15:0],
Vout_margin_high[15:0],
Vout_margin_low[15:0],
Vout_ov_fault_limit[15:0],
Vout_ov_warn_limit[15:0],
Vout_uv_warn_limit[15:0],
Vout_uv_fault_limit[15:0],
Power_good_on[15:0],
Power_good_off[15:0]
OPERATION
These commands relate to output voltage. The data uses the L16 format.
Units: V
Input Voltage Related Commands
VIN_ON, VIN_OFF, VIN_OV_FAULT_LIMIT, VIN_OV_WARN_LIMIT, VIN_UV_WARN_LIMIT and VIN_UV_FAULT_
LIMIT
These commands use the same format and provide voltage supervising limits for the input voltage V_{IN_SNS}.
Data Contents
BIT(S) SYMBOL
b[15:0] Vin_on[15:0],
Vin_off[15:0],
Vin_ov_fault_limit[15:0],
Vin_ov_warn_limit[15:0],
Vin_uv_warn_limit[15:0],
Vin_uv_fault_limit[15:0]
OPERATION
These commands relate to input voltage. The data uses the L11 format.
Units: V.
2977fa
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