SLVSEI1C
June 2019 – October 2020
TPS62864
,
TPS62866
PRODUCTION DATA
1
Features
2
Applications
3
Description
4
Revision History
5
Device Options
6
Pin Configuration and Functions
7
Specifications
7.1
Absolute Maximum Ratings
7.2
ESD Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information
7.5
Electrical Characteristics
7.6
I2C InterfaceTiming Characteristics
7.7
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Power Save Mode
8.3.2
Forced PWM Mode
8.3.3
Start-up
8.3.4
Switch Current Limit and HICCUP Short-Circuit Protection
8.3.5
Undervoltage Lockout (UVLO)
8.3.6
Thermal Warning and Shutdown
8.4
Device Functional Modes
8.4.1
Enable and Disable (EN)
8.4.2
Output Discharge
8.4.3
Start-up Output Voltage and I2C Slave Address Selection (VSET)
8.4.4
Select Output Voltage Registers (VID)
8.4.5
Power Good (PG)
8.5
Programming
8.5.1
Serial Interface Description
8.5.2
Standard-, Fast-, and Fast-Mode Plus Protocol
8.5.3
HS-Mode Protocol
8.5.4
I2C Update Sequence
8.5.5
I2C Register Reset
8.6
Register Map
8.6.1
Slave Address Byte
8.6.2
Register Address Byte
8.6.3
VOUT Register 1
8.6.4
VOUT Register 2
8.6.5
CONTROL Register
8.6.6
STATUS Register
9
Application and Implementation
9.1
Application Information
9.2
Typical Applications
9.2.1
6-A Output Current Application
9.2.1.1
Design Requirements
9.2.1.2
Detailed Design Procedure
9.2.1.2.1
Custom Design With WEBENCH® Tools
9.2.1.2.2
Setting The Output Voltage
9.2.1.2.3
Output Filter Design
9.2.1.2.4
Inductor Selection
9.2.1.2.5
Capacitor Selection
9.2.1.3
Application Curves
9.2.2
Smaller Application Solution
9.2.2.1
Design Requirements
9.2.2.2
Application Curves
10
Power Supply Recommendations
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
11.3
Thermal Considerations
12
Device and Documentation Support
12.1
Device Support
12.1.1
Third-Party Products Disclaimer
12.2
Documentation Support
12.2.1
Related Documentation
12.3
Support Resources
12.4
Receiving Notification of Documentation Updates
12.5
Trademarks
12.6
Electrostatic Discharge Caution
12.7
Glossary
13
Mechanical, Packaging, and Orderable Information
8.6.3
V
OUT
Register 1
Table 8-4 V
OUT
Register 1 Description
REGISTER ADDRESS 0X01 READ/WRITE
BIT
FIELD
VALUE (HEX)
OUTPUT VOLTAGE (TYP)
(1)
7:0
VO1_SET
0x00
400 mV
0x01
405 mV
...
0x64
900 mV
...
0xFE
1670 mV
0xFF
1675 mV
(1)
It is not recommended to use the following codes, as their output voltage accuracy may have a wider tolerance than the specification: 0x20 (560 mV), 0x40 (720 mV), 0x60 (880 mV), 0x80 (1040 mV), 0xC4 (1360 mV), 0xE0 (1520 mV).