Texas Instruments TPS40422 Dual Output or Multiphase Synchronous Buck Controller Evaluation Module TPS40422EVM-091 TPS40422EVM-091 데이터 시트
제품 코드
TPS40422EVM-091
EVM Configuration Using the Fusion GUI
5
EVM Configuration Using the Fusion GUI
The TPS40422 on this EVM leaves the factory pre-configured. See
for a short list of key factory
configuration parameters as obtained from the configuration file.
Table 3. Key Factory Configuration Parameters
Address Hex
Address Dec
Part ID
0x1B
27
TPS40422
General
Cmd ID With Phase
Cmd Code Hex
Encoded Hex
Decoded
Numeric
Comments
VIN_OFF
0x36
0xF014
5.00 V
5
Turn OFF voltage
VIN_ON
0x35
0xF01C
7.00 V
7
Turn ON voltage
Vout 1
Comments
IOUT_CAL_GAIN
0x38
0x8821
1.0071 m
Ω
1.0071
DCR of output inductor
IOUT_CAL_OFFSET
0x39
0xE000
0.0000 A
0
Current offset for GUI readout
IOUT_OC_FAULT_LIMIT
0x46
0xF83C
30.0 A
30
OC fault level
IOUT_OC_FAULT_RESPONSE
0x47
0x3C
Restart Continuously
Response to OC fault
IOUT_OC_WARN_LIMIT
0x4A
0xF832
25.0 A
25
OC warning level
MFR_04 (VREF_TRIM)
0xD4
0x0000
0.000 V
0
Trim voltage
Control signal and OPERATION command
ON_OFF_CONFIG
0x02
0x02
Mode: Always Converting
not required
Unit: Immediate Off; Margin:
OPERATION
0x01
0x00
Response to turn OFF trigger
None
OT_FAULT_LIMIT
0x4F
0x007D
125 C
125
OT fault level
OT_WARN_LIMIT
0x51
0x0064
100 C
100
OT warn level
TON_RISE
0x61
0xE02B
2.6875 ms
2.6875
Soft-start time
Vout 2
Comments
IOUT_CAL_GAIN
0x38
0x8821
1.0071 m
Ω
1.0071
DCR of output inductor
IOUT_CAL_OFFSET
0x39
0xE000
0.0000 A
0
Current offset for GUI readout
IOUT_OC_FAULT_LIMIT
0x46
0xF832
25.0 A
25
OC fault level
IOUT_OC_FAULT_RESPONSE
0x47
0x3C
Restart Continuously
Response to OC fault
IOUT_OC_WARN_LIMIT
0x4A
0xF828
20.0 A
20
OC warning level
MFR_04 (VREF_TRIM)
0xD4
0x0000
0.000 V
0
Trim voltage
Control signal and OPERATION command
ON_OFF_CONFIG
0x02
0x02
Mode: Always Converting
not required
Unit: Immediate Off; Margin:
OPERATION
0x01
0x00
Response to turn OFF trigger
None
OT_FAULT_LIMIT
0x4F
0x007D
125 C
125
OT fault level
OT_WARN_LIMIT
0x51
0x0064
100 C
100
OT warn level
TON_RISE
0x61
0xE02B
2.6875 ms
2.6875
Soft-start time
If it is desired to configure the EVM to settings other than the factory settings shown in
, the TI
Fusion Digital Power Designer software can be used for reconfiguration. It is necessary to have input
voltage applied to the EVM prior to launching the software so that the TPS40422 may respond to the GUI
and the GUI can recognize the TPS40422. The default configuration for the EVM is to start converting at
an input voltage of 7 V; therefore, to avoid any converter activity during configuration, an input voltage less
than 7 V must be applied. An input voltage of 5 V is recommended.
voltage applied to the EVM prior to launching the software so that the TPS40422 may respond to the GUI
and the GUI can recognize the TPS40422. The default configuration for the EVM is to start converting at
an input voltage of 7 V; therefore, to avoid any converter activity during configuration, an input voltage less
than 7 V must be applied. An input voltage of 5 V is recommended.
5.1
Configuration Procedure
1. Adjust the input supply to provide 5 Vdc, current limited to 1 A.
2. Apply the input voltage to the EVM. See
and
for connections and test setup.
3. Launch the Fusion GUI software. See the screen shots in
for more information.
4. Configure the EVM operating parameters as desired.
14
Using the PWR091EVM Dual-Output DC/DC Analog With PMBus Interface
SLVU638
–
January 2012
Copyright
©
2012, Texas Instruments Incorporated