SLUS930D
April 2011 – November 2016
TPS40400
PRODUCTION DATA.
1
Features
2
Applications
3
Description
4
Revision History
5
Pin Configuration and Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
Switching Characteristics
6.7
Dissipation Ratings
6.8
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Output Voltage Setting
7.3.2
Input Voltage Feedforward
7.3.3
Output Current Limit and Warning
7.3.4
Linear Regulators
7.3.5
PMBus Address
7.3.6
PMBus Connections
7.3.7
PMBus Functionality and Additional Set-Up
7.3.7.1
Data Format
7.3.7.2
Output Voltage Adjustment
7.3.7.3
Overcurrent Threshold
7.3.7.4
Output Current Reading
7.3.7.5
Soft-Start Time
7.3.7.6
Power Good
7.3.7.7
Undervoltage Lockout (UVLO)
7.3.7.8
Output Overvoltage and Undervoltage Thresholds
7.3.7.9
Programmable Fault Responses
7.3.7.10
User Data and Adjustable Anti-Cross-Conduction Delay
7.4
Device Functional Modes
7.4.1
Continuous Conduction Mode
7.4.2
Operation with CNTL Signal Control
7.4.3
Operation with OPERATION Control
7.4.4
Operation with CNTL and OPERATION Control
7.4.5
Operation without CNTL or OPERATION Control
7.4.6
Operation with Output Trim and Margin
7.5
Programming
7.5.1
Supported PMBus Commands
7.6
Register Maps
7.6.1
OPERATION (01h)
7.6.1.1
On
7.6.1.2
Margin
7.6.2
ON_OFF_CONFIG (02h)
7.6.2.1
Pu
7.6.2.2
Cmd
7.6.2.3
Cpr
7.6.2.4
Pol
7.6.2.5
Cpa
7.6.3
CLEAR_FAULTS (03h)
7.6.4
WRITE_PROTECT (10h)
7.6.5
STORE_DEFAULT_ALL (11h)
7.6.6
RESTORE_DEFAULT_ALL (12h)
7.6.7
STORE_DEFAULT_CODE (13h)
7.6.8
RESTORE_DEFAULT_CODE (14h)
7.6.9
VOUT_MODE (20h)
7.6.9.1
Mode
7.6.9.2
Exponent
7.6.10
VOUT_TRIM (22h)
7.6.11
VOUT_MARGIN_HIGH (25h)
7.6.12
VOUT_MARGIN_LOW (26h)
7.6.13
VOUT_SCALE_LOOP (29h)
7.6.13.1
Exponent
7.6.13.2
Mantissa
7.6.14
FREQUENCY_SWITCH (33h)
7.6.14.1
Exponent
7.6.14.2
Mantissa
7.6.15
VIN_ON (35h)
7.6.15.1
Exponent
7.6.15.2
Mantissa
7.6.16
VIN_OFF (36h)
7.6.16.1
Exponent
7.6.16.2
Mantissa
7.6.17
IOUT_CAL_GAIN (38h)
7.6.17.1
Exponent
7.6.17.2
Mantissa
7.6.18
IOUT_CAL_OFFSET (39h)
7.6.18.1
Exponent
7.6.18.2
Mantissa
7.6.19
VOUT_OV_FAULT_LIMIT (40h)
7.6.20
VOUT_OV_FAULT_RESPONSE (41h)
7.6.20.1
RSP[1:0]
7.6.20.2
RS[2:0]
7.6.21
VOUT_UV_FAULT_LIMIT (44h)
7.6.22
VOUT_UV_FAULT_RESPONSE (45h)
7.6.22.1
RSP[1:0]
7.6.22.2
RS[2:0]
7.6.23
IOUT_OC_FAULT_LIMIT (46h)
7.6.23.1
Exponent
7.6.23.2
Mantissa
7.6.24
IOUT_OC_FAULT_RESPONSE (47h)
7.6.24.1
RSP[1:0]
7.6.24.2
RS[2:0]
7.6.25
IOUT_OC_WARN_LIMIT (4Ah)
7.6.25.1
Exponent
7.6.25.2
Mantissa
7.6.26
OT_FAULT_RESPONSE (50h)
7.6.26.1
OTF_RS
7.6.27
POWER_GOOD_ON (5Eh)
7.6.28
POWER_GOOD_OFF (5Fh)
7.6.29
TON_RISE (61h)
7.6.29.1
Exponent
7.6.29.2
Mantissa
7.6.30
STATUS_BYTE (78h)
7.6.31
STATUS_WORD (78h)
7.6.32
STATUS_VOUT (7Ah)
7.6.33
STATUS_IOUT (7Bh)
7.6.34
STATUS_TEMPERATURE (7Dh)
7.6.35
STATUS_CML (7Eh)
7.6.36
READ_VIN (88h)
7.6.36.1
Exponent
7.6.36.2
Mantissa
7.6.37
READ_VOUT (8Bh)
7.6.37.1
Exponent
7.6.37.2
Mantissa
7.6.38
READ_IOUT (8Ch)
7.6.38.1
Exponent
7.6.38.2
Mantissa
7.6.39
PMBUS_REVISION (98h)
7.6.40
MFR_VIN_MIN (A0h)
7.6.40.1
Exponent
7.6.40.2
Mantissa
7.6.41
MFR_VIN_MAX (A1h)
7.6.41.1
Exponent
7.6.41.2
Mantissa
7.6.42
MFR_VOUT_MIN (A4h)
7.6.42.1
Exponent
7.6.42.2
Mantissa
7.6.43
MFR_VOUT_MAX (A5h)
7.6.43.1
Exponent
7.6.43.2
Mantissa
7.6.44
MFR_SPECIFIC_00 (D0h)
7.6.44.1
Dead-Time Control Setting (DTC)
7.6.44.2
WPE
7.6.45
MFR_SPECIFIC_01 (D1h)
7.6.46
MFR_SPECIFIC_02 (D2h)
7.6.47
MFR_SPECIFIC_03 (D3h)
7.6.48
MFR_SPECIFIC_04 (D4h)
7.6.49
MFR_SPECIFIC_05 (D5h)
7.6.50
MFR_SPECIFIC_06 (D6h)
7.6.51
MFR_SPECIFIC_07 (D7h)
7.6.52
MFR_SPECIFIC_44 (FCh)
7.6.52.1
Identifier Code
7.6.52.2
Revision Code
8
Application and Implementation
8.1
Application Information
8.2
Typical Applications
8.2.1
TPS40400 12-V Input, 1.2-V Output, 20-A (maximum) Output Current ConverterAdded Design Example 1
8.2.1.1
Design Requirements
8.2.1.1.1
Design Example List of Materials
8.2.1.2
Detailed Design Procedure
8.2.1.2.1
Selecting a Switching Frequency
8.2.1.2.2
Output Inductor, LOUT
8.2.1.2.3
Output Capacitance, COUT
8.2.1.2.4
The Resistive Component of Output Ripple
8.2.1.2.5
Peak Current Rating of the Inductor
8.2.1.2.6
Input Capacitance, CIN
8.2.1.2.7
Switching MOSFETs, QHS and QLS
8.2.1.2.8
Device Addressing, RADDR0 and RADDR1
8.2.1.2.9
Current Sense Flter, R16 and C17
8.2.1.2.10
Voltage Decoupling Capacitors, CBP3, CBP6, and CVDD
8.2.1.2.11
Bootstrap Capacitor, C9
8.2.1.2.12
Snubber R12 and C16
8.2.1.2.13
Loop Compensaton Components
8.2.1.2.14
Output Voltage Set Point, RBIAS
8.2.1.2.15
Remote Sensing
8.2.1.3
Application Curves
8.2.2
TPS40400 12-V Input 5-V Output, 5-A (Maximum) Output Current Converter Design Example 2Added Design Example 2
8.2.2.1
Design Requirements
8.2.2.1.1
List of Materials
8.2.2.2
Application Curves
8.3
Initialization Setup
8.3.1
Internal Configuration
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Examples
10.3
Thermal Considerations
11
Device and Documentation Support
11.1
Device Support
11.1.1
Third-Party Products Disclaimer
11.2
Community Resources
11.3
Trademarks
11.4
Electrostatic Discharge Caution
11.5
Glossary
12
Mechanical, Packaging, and Orderable Information
封装选项
机械数据 (封装 | 引脚)
RHL|24
MPQF163I
散热焊盘机械数据 (封装 | 引脚)
订购信息
zhcs184b_pm