JAJSHS0C
March 2019 – March 2021
TPS92682-Q1
PRODUCTION DATA
1
特長
2
アプリケーション
3
概要
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
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Device Enable
7.3.2
Internal Regulator and Undervoltage Lockout (UVLO)
7.3.3
Oscillator
7.3.4
Spread Spectrum Function
7.3.5
Gate Driver
7.3.6
Rail-to-Rail Current Sense Amplifier
7.3.7
Transconductance Error Amplifier
7.3.8
Switch Current Sense
7.3.9
Slope Compensation
7.3.10
ILED Setting in CC Mode
7.3.11
Output Voltage Setting in CV Mode
7.3.12
PWM Dimming
7.3.13
P-Channel FET Gate Driver Output
7.3.14
Soft Start
7.3.15
Two-Phase Operation
7.3.15.1
Current Sharing In Two-Phase
7.3.16
Faults and Diagnostics
7.3.16.1
Main Fault Timer (MFT)
7.3.16.2
OV Fault
7.3.16.3
UV Fault
7.3.16.4
ILIM Fault
7.3.16.5
UVLO
7.3.16.6
ILED Over Current (OC)
7.3.16.7
ILED Undercurrent (UC)
7.3.16.8
ISNOPEN, FBOPEN, and RTOPEN Faults
7.3.16.9
TW and TSD
7.3.16.10
COMPx Pull-Down and Comp-Low signal
7.4
Device Functional Modes
7.4.1
POR Mode
7.4.2
Normal Operation
7.4.3
Limp Home
7.5
Programming
7.5.1
Serial Interface
7.5.2
Command Frame
7.5.3
Response Frame
7.5.3.1
Read Response Frame Format
7.5.3.2
Write Response Frame Format
7.5.3.3
Write Error/POR Frame Format
7.5.4
SPI Error
7.6
TPS92682 Registers
7.6.1
EN Register
7.6.2
CFG1 Register
7.6.3
CFG2 Register
7.6.4
SWDIV Register
7.6.5
ISLOPE Register
7.6.6
FM Register
7.6.7
SOFTSTART Register
7.6.8
CH1IADJ Register
7.6.9
CH2IADJ Register
7.6.10
PWMDIV Register
7.6.11
CH1PWML Register
7.6.12
CH1PWMH Register
7.6.13
CH2PWML Register
7.6.14
CH2PWMH Register
7.6.15
ILIM Register
7.6.16
IFT Register
7.6.17
MFT Register
7.6.18
FLT1 Register (read only)
7.6.19
FLT2 Register (read only)
7.6.20
FEN1 Register
7.6.21
FEN2 Register
7.6.22
FLATEN Register
7.6.23
OV Register
7.6.24
LHCFG Register
7.6.25
LHCH1IADJ Register
7.6.26
LHCH2IADJ Register
7.6.27
LHCH1PWML Register
7.6.28
LHCH1PWMH Register
7.6.29
LHCH2PWML Register
7.6.30
LHCH2PWMH Register
7.6.31
LHILIM Register
7.6.32
LHIFT Register
7.6.33
LHMFT Register
7.6.34
LHFEN1 Register
7.6.35
LHFEN2 Register
7.6.36
LHFLATEN Register
7.6.37
LHOV Register
7.6.38
CAL Register
7.6.39
RESET Register
8
Application and Implementation
8.1
Application Information General Design Considerations
8.1.1
Switching Frequency, fSW
8.1.2
Duty Cycle Considerations
8.1.3
Main Power MOSFET Selection
8.1.4
Rectifier Diode Selection
8.1.5
Switch Current Sense Resistor
8.1.6
Slope Compensation
8.1.7
Soft Start
8.2
Application Information CC Mode
8.2.1
Inductor Selection
8.2.2
Output Capacitor Selection
8.2.3
Input Capacitor Selection
8.2.4
Programming LED Current
8.2.5
Feedback Compensation
8.2.6
Overvoltage and Undervoltage Protection
8.2.7
Series P-Channel MOSFET Selection
8.2.8
Programming Example for Two-Channel CC Mode
8.3
Typical Application CV Mode
8.3.1
Inductor Selection
8.3.2
Output Capacitor Selection
8.3.3
Input Capacitor Selection
8.3.4
Programming Output Voltage VOUT
8.3.5
Feedback Compensation
8.3.6
Overvoltage and Undervoltage Protection
8.3.7
Programing Example for Two-Phase CV BOOST
8.4
Typical Application CC Mode
8.4.1
CC Boost Design Requirements
8.4.2
CC Boost Detailed Design Procedure
8.4.2.1
Calculating Duty Cycle
8.4.2.2
Setting Switching Frequency
8.4.2.3
Setting Dither Modulation Frequency
8.4.2.4
Inductor Selection
8.4.2.5
Output Capacitor Selection
8.4.2.6
Input Capacitor Selection
8.4.2.7
Main N-Channel MOSFET Selection
8.4.2.8
Rectifier Diode Selection
8.4.2.9
Setting ILED and Selecting RCS
8.4.2.10
Setting Switch Current Limit
8.4.2.11
Slope Compensation
8.4.2.12
Compensator Parameters
8.4.2.13
Overvoltage Protection
8.4.2.14
Series P-Channel MOSFET Selection
8.4.3
CC Buck-Boost Design Requirements
8.4.4
CC Buck-Boost Detailed Design Procedure
8.4.4.1
Calculating Duty Cycle
8.4.4.2
Setting Switching Frequency
8.4.4.3
Setting Dither Modulation Frequency
8.4.4.4
Inductor Selection
8.4.4.5
Output Capacitor Selection
8.4.4.6
Input Capacitor Selection
8.4.4.7
Main N-Channel MOSFET Selection
8.4.4.8
Rectifier Diode Selection
8.4.4.9
Setting ILED and Selecting RCS
8.4.4.10
Setting Switch Current Limit
8.4.4.11
Slope Compensation
8.4.4.12
Compensator Parameters
8.4.4.13
Overvoltage Protection
8.4.5
PWM Dimming Consideration
8.4.6
Application Curves
8.5
Typical Application CV Mode
8.5.1
CV Design Requirements
8.5.2
Detailed Design Procedure
8.5.2.1
Calculating Duty Cycle
8.5.2.2
Setting Switching Frequency
8.5.2.3
Setting Dither Modulation Frequency
8.5.2.4
Inductor Selection
8.5.2.5
Output Capacitor Selection
8.5.2.6
Input Capacitor Selection
8.5.2.7
Main N-Channel MOSFET Selection
8.5.2.8
Rectifier Diode Selection
8.5.2.9
Programming VOUT
8.5.2.10
Setting Switch Current Limit
8.5.2.11
Slope Compensation
8.5.2.12
Compensator Parameters
8.5.2.13
Overvoltage Protection
8.5.3
Application Curves
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Example
11
Device and Documentation Support
11.1
ドキュメントの更新通知を受け取る方法
11.2
サポート・リソース
11.3
Trademarks
11.4
静電気放電に関する注意事項
11.5
用語集
12
Mechanical, Packaging, and Orderable Information
パッケージ・オプション
メカニカル・データ(パッケージ|ピン)
DAP|32
MPDS380A
RHB|32
MPQF130D
RHM|32
MPQF152B
サーマルパッド・メカニカル・データ
DAP|32
PPTD363
RHB|32
QFND644
RHM|32
QFND588
発注情報
jajshs0c_oa
jajshs0c_pm
7
Detailed Description