JAJSH64B
November 2012 – April 2019
TPS53819A
PRODUCTION DATA.
1
特長
2
アプリケーション
3
概要
Device Images
アプリケーション概略図
4
改訂履歴
5
Pin Configuration and Functions
Pin 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
Timing Requirements
6.7
Switching Characteristics
6.8
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Enable and Soft-Start
7.3.2
Adaptive On-Time Control
7.3.3
Zero Crossing Detection
7.3.4
Output Discharge Control
7.3.5
Low-Side Driver
7.3.6
High-Side Driver
7.3.7
Power Good
7.3.8
Current Sense and Overcurrent Protection
7.3.9
Overvoltage and Undervoltage Protection
7.3.10
Out-of-Bound Protection
7.3.11
UVLO Protection
7.3.12
Thermal Shutdown
7.4
Device Functional Modes
7.4.1
Light-Load Condition in Auto-Skip Operation (Eco-mode)
7.4.2
Forced Continuous Conduction Mode
7.4.3
D-CAP2™ Mode
7.5
Programming
7.5.1
PMBus General Descriptions
7.5.2
PMBus Slave Address Selection
7.5.3
PMBus Address Selection
7.5.4
Supported Formats
7.5.4.1
Direct Format: Write
7.5.4.2
Combined Format: Read
7.5.4.3
Stop-Separated Reads
7.5.5
Supported PMBus Commands
7.5.6
Unsupported PMBus Commands
7.6
Register Maps
7.6.1
OPERATION [01h] (R/W Byte)
7.6.2
ON_OFF_CONFIG [02h] (R/W Byte)
7.6.3
WRITE_PROTECT [10h] (R/W Byte)
7.6.4
CLEAR_FAULTS [03h] (Send Byte)
7.6.5
STORE_DEFAULT_ALL [11h] (Send Byte)
7.6.6
RESTORE_DEFAULT_ALL [12h] (Send Byte)
7.6.7
STATUS_WORD [79h] (Read Word)
7.6.8
CUSTOM_REG (MFR_SPECIFIC_00) [D0h] (R/W Byte)
7.6.9
DELAY_CONTROL (MFR_SPECIFIC_01) [D1h] (R/W Byte)
7.6.10
MODE_SOFT_START_CONFIG (MFR_SPECIFIC_02) [D2h] (R/W Byte)
7.6.11
FREQUENCY_CONFIG (MFR_SPECIFIC_03) [D3h] (R/W Byte)
7.6.12
VOUT_ADJUSTMENT (MFR_SPECIFIC_04) [D4h] (R/W Byte)
7.6.13
Output Voltage Fine Adjustment Soft Slew Rate
7.6.14
VOUT_MARGIN (MFR_SPECIFIC_05) [D5h] (R/W Byte)
7.6.15
Output Voltage Margin Adjustment Soft-Slew Rate
7.6.16
UVLO_THRESHOLD (MFR_SPECIFIC_06) [D6h]
8
Application and Implementation
8.1
Application Information
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.2.1
Custom Design With WEBENCH® Tools
8.2.2.2
Switching Frequency
8.2.2.3
Inductor (L1)
8.2.2.4
Output Capacitors (C10, C11, C12, C13, C14)
8.2.2.5
Input Capacitors (C1, C2, C3, C4, C5)
8.2.2.6
MOSFET (Q1, Q2)
8.2.2.7
VREG Bypass Capacitor (C18)
8.2.2.8
VDD Bypass Capacitor (C19)
8.2.2.9
VBST Capacitor (C7)
8.2.2.10
Snubber (C8 and R9)
8.2.2.11
Feedback Resistance, RFBH and RFBL (R17 and R18)
8.2.2.12
Overcurrent Limit (OCL) Setting Resistance (R10)
8.2.2.13
PMBus Device Address (R3 and R4)
8.2.2.14
PGOOD Pullup Resistor (R2)
8.2.2.15
SCL and SDA Pulldown Resistors (R14 and R15)
8.2.2.16
PMBus Pullup Resistors
8.2.3
Application Curves
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Example
11
デバイスおよびドキュメントのサポート
11.1
デバイス・サポート
11.1.1
開発サポート
11.1.1.1
WEBENCH®ツールによるカスタム設計
11.2
ドキュメントの更新通知を受け取る方法
11.3
コミュニティ・リソース
11.4
商標
11.5
静電気放電に関する注意事項
11.6
Glossary
12
メカニカル、パッケージ、および注文情報
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)
RGT|16
MPQF119H
サーマルパッド・メカニカル・データ
RGT|16
QFND098S
発注情報
jajsh64b_oa
jajsh64b_pm
6
Specifications