ZSPM1025A
True Digital PWM Controller (Single-Phase, Single-Rail)
4.5. Monitoring
The ZSPM1025A has a dedicated set of PMBus™ registers to enable advanced power management using
extensive monitoring features. Different warning and error flags can be read by the PMBus™ master to ensure
proper operation of the power converter or monitor the converters over the product lifetime.
Table 4.5
List of Supported PMBus™ Status Registers
PMBus™ Command
Description
Data Format
CLEAR_FAULTS
STATUS_BYTE
Clear status information
Unit status byte
STATUS_WORD
STATUS_VOUT
Unit status word
Output voltage status
Output current status
Input status
STATUS_IOUT
STATUS_INPUT
STATUS_TEMPERATURE
STATUS_CML
Temperature status
Communication and memory status
Input voltage read back
Output voltage read back
Output current read back
External temperature read back
Internal temperature read back
READ_VIN
LINEAR
READ_VOUT
LINEAR
LINEAR
LINEAR
LINEAR
READ_IOUT
READ_TEMPERATURE_1
READ_TEMPERATURE_2
4.6. Additional Registers
Table 4.6
Additional Supported PMBus™ Registers
Description
PMBus™ Command
Data Length (Byte)
Values
PMBUS_REVISION
MFR_ID
PMBus™ revision
1
4
11HEX
Manufacturer ID
“ZMDI”
(5AHEX, 4D HEX, 44 HEX, 49 HEX
)
MFR_MODEL
Manufacturer model identifier
4
“1025”
(31HEX, 30HEX, 30HEX, 30HEX
)
MFR_REVISION
MFR_SERIAL
Manufacturer product revision
Serial number
4
12
© 2013 Zentrum Mikroelektronik Dresden AG — Rev. 1.00
All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the
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Data Sheet
October 24, 2013
26 of 46
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