ZHCS614G
October 2011 – September 2022
TPS40422
PRODUCTION DATA
1
特性
2
应用
3
说明
4
Revision History
5
说明(续)
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
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
PMBus Interface Protocol General Description
8.3.2
Voltage Reference
8.3.3
Output Voltage
8.3.4
Voltage Feed Forward
8.3.5
Current Sensing
8.3.6
Overcurrent Protection
8.3.7
Current Sharing
8.3.8
Linear Regulators
8.3.9
BP Switch-over
8.3.10
Switching Frequency Setting
8.3.11
Switching Node and BOOT Voltage
8.3.12
Reading the Output Current
8.3.13
Soft-Start Time
8.3.14
Turn-On/Turn-Off Delay and Sequencing
8.3.15
Pre-Biased Output Start-Up
8.3.16
Undervoltage Lockout
8.3.17
Overvoltage and Undervoltage Fault Protection
8.3.18
Power Good
8.3.19
Overtemperature Fault Protection
8.3.20
Thermal Shutdown
8.3.21
Programmable Fault Responses
8.3.22
User Data
8.3.23
Adjustable Anti-Cross Conduction Delay
8.3.24
Connection of Unused Pins
8.4
Device Functional Modes
8.4.1
Control Signal
8.4.2
OPERATION Command
8.4.3
Control Signal and OPERATION Command
8.4.4
Two-Phase Mode Operation
8.5
Programming
8.5.1
Supported PMBus Commands
8.5.1.1
PMBus Address
8.5.1.2
PMBus Connections
8.5.1.3
PMBus Data Format
8.5.1.4
PMBus Interface Output Voltage Adjustment
8.5.1.5
53
8.6
Register Maps
8.6.1
Supported Commands
8.6.1.1
PAGE (00h)
8.6.1.2
OPERATION (01h)
8.6.1.2.1
On
8.6.1.2.2
Margin
8.6.1.3
ON_OFF_CONFIG (02h)
8.6.1.3.1
pu
8.6.1.3.2
cmd
8.6.1.3.3
CPR
8.6.1.3.4
pol
8.6.1.3.5
CPA
8.6.1.4
CLEAR_FAULTS (03h)
8.6.1.5
WRITE_PROTECT (10h)
8.6.1.5.1
bit5
8.6.1.5.2
bit6
8.6.1.5.3
bit7
8.6.1.6
STORE_USER_ALL (15h)
8.6.1.7
RESTORE_USER_ALL (16h)
8.6.1.8
CAPABILITY (19h)
8.6.1.9
VOUT_MODE (20h)
8.6.1.9.1
Mode:
8.6.1.9.2
Exponent
8.6.1.10
VIN_ON (35h)
8.6.1.10.1
Exponent
8.6.1.10.2
Mantissa
8.6.1.11
VIN_OFF (36h)
8.6.1.11.1
Exponent
8.6.1.11.2
Mantissa
8.6.1.12
IOUT_CAL_GAIN (38h)
8.6.1.12.1
Exponent
8.6.1.12.2
Mantissa
8.6.1.13
IOUT_CAL_OFFSET (39h)
8.6.1.13.1
Exponent
8.6.1.13.2
Mantissa
8.6.1.14
IOUT_OC_FAULT_LIMIT (46h)
8.6.1.14.1
Exponent
8.6.1.14.2
Mantissa
8.6.1.15
IOUT_OC_FAULT_RESPONSE (47h)
8.6.1.15.1
RS[2:0]
8.6.1.16
IOUT_OC_WARN_LIMIT (4Ah)
8.6.1.16.1
Exponent
8.6.1.16.2
Mantissa
8.6.1.17
OT_FAULT_LIMIT (4Fh)
8.6.1.17.1
Exponent
8.6.1.17.2
Mantissa
8.6.1.18
OT_WARN_LIMIT (51h)
8.6.1.18.1
Exponent
8.6.1.18.2
Mantissa
8.6.1.19
TON_RISE (61h)
8.6.1.19.1
Exponent
8.6.1.19.2
Mantissa
8.6.1.20
STATUS_BYTE (78h)
8.6.1.21
STATUS_WORD (79h)
8.6.1.22
STATUS_VOUT (7Ah)
8.6.1.23
STATUS_IOUT (7Bh)
8.6.1.24
STATUS_TEMPERATURE (7Dh)
8.6.1.25
STATUS_CML (7Eh)
8.6.1.26
STATUS_MFR_SPECIFIC (80h)
8.6.1.27
READ_VOUT (8Bh)
8.6.1.28
READ_IOUT (8Ch)
8.6.1.28.1
Exponent
8.6.1.28.2
Mantissa
8.6.1.29
READ_TEMPERATURE_2 (8Eh)
8.6.1.29.1
Exponent
8.6.1.29.2
Mantissa
8.6.1.30
PMBUS_REVISION (98h)
8.6.1.31
MFR_SPECIFIC_00 (D0h)
8.6.1.32
VREF_TRIM (MFR_SPECIFIC_04) (D4h)
8.6.1.33
STEP_VREF_MARGIN_HIGH (MFR_SPECIFIC_05) (D5h)
8.6.1.34
STEP_VREF_MARGIN_LOW (MFR_SPECIFIC_06) (D6h)
8.6.1.35
PCT_VOUT_FAULT_PG_LIMIT (MFR_SPECIFIC_07) (D7h)
8.6.1.36
126
8.6.1.37
SEQUENCE_TON_TOFF_DELAY (MFR_SPECIFIC_08) (D8h)
8.6.1.38
128
8.6.1.39
OPTIONS (MFR_SPECIFIC_21) (E5h)
8.6.1.40
DEVICE_CODE (MFR_SPECIFIC_44) (FCh)
8.6.1.40.1
Identifier Code
8.6.1.40.2
Revision Code
9
Application and Implementation
9.1
Application Information
9.2
Typical Application
9.2.1
Dual-Output Converter
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
Step 1: Inductor Selection
9.2.1.2.3
Step 2: Output Capacitor Selection
9.2.1.2.4
Step 3: Input Capacitance Selection
9.2.1.2.5
Step 4: MOSFET Selection
9.2.1.2.6
Step 5: Snubber Circuit Design
9.2.1.2.7
Step 6: Soft-Start Time
9.2.1.2.8
Step 7: Peripheral Component Design
9.2.1.2.8.1
RT (Pin 1) Switching Frequency Setting
9.2.1.2.8.2
FB1 (Pin 2) and FB2 (Pin 8) Output Voltage Setting
9.2.1.2.8.3
Compensation Network Using COMP1 (Pin 3) , COMP2 (Pin 7), FB1 (Pin 2) FB2 DIFFO1 (Pin 8) (Pin 39)
9.2.1.2.8.4
Remote Sensing Using VSNS1 (Pin 37), GSNS1 (Pin 38) , VSNS2 (Pin 15), and GSNS2 (Pin 14)
9.2.1.2.8.5
Temperate Sensing Using TSNS1 (Pin36) and TSNS2 (Pin 16)
9.2.1.2.8.6
Current Sensing Network Design Using CS1P (Pin 34), CS1N (Pin 35) , CS2P (Pin 18), and CS2N (Pin 17)
9.2.1.2.8.7
PMBus Address ADDR1 (Pin 9) , and ADDR0 (Pin 10)
9.2.1.2.8.8
Voltage Decoupling Capacitors
9.2.1.2.8.8.1
VDD (Pin 31)
9.2.1.2.8.8.2
BP3 (Pin 32)
9.2.1.2.8.8.3
BNEXT (Pin 24)
9.2.1.2.8.8.4
BP6 (Pin 25)
9.2.1.2.8.8.5
Power Good PGOOD1 (Pin 33), PGOOD2 (Pin 19)
9.2.1.2.8.8.6
Bootstrap Capacitors BOOT1 (Pin 30), and BOOT2 (Pin 20)
9.2.1.2.8.8.7
High-Side MOSFET (Gate) Resistor
9.2.1.2.8.8.8
Synchronization Setting SYNC (Pin 40)
9.2.1.2.8.8.9
BP6 (Pin 25)
9.2.1.2.8.8.10
DIFFO (Pin 39)
9.2.1.3
Application Curves
10
Power Supply Recommendations
11
Layout
11.1
Layout Guidelines
11.1.1
PCB Layout Guidelines
11.1.2
MOSFET Layout Guidelines
11.2
Layout Example
12
Device and Documentation Support
12.1
Device Support
12.2
接收文档更新通知
12.3
支持资源
12.4
Trademarks
12.5
Electrostatic Discharge Caution
12.6
术语表
13
Mechanical, Packaging, and Orderable Information
封装选项
机械数据 (封装 | 引脚)
RSB|40
MPQF185C
RHA|40
MPQF135D
散热焊盘机械数据 (封装 | 引脚)
订购信息
zhcs614g_oa
zhcs614g_pm
1
特性
单电源运算:4.5 V 至 20 V
输出电压范围为 0.6V 至 5.6V
双输出或双相同步降压控制器
PMBus™
接口能力
以 2mV 为步长的电压上升/下降
可编程故障限制和响应
输出电压,输出电流监控
外部温度监视(使用 2N3904 晶体管时)
可编程欠压闭锁 (UVLO) 开/关阈值
可编程软启动时间和接通与关断延迟
片载非易失性存储器(NVM)用于存储定制配置
180°相移以减少输入纹波
0°C 到 85°C 温度范围内的基准电压为 600mV,精度为 ±0
.
5%
电感器 DCR 电流感测
可编程开关频率:200 kHz 至 1 MHz
具有输入前反馈的电压模式控制
多相位运行的电流共享
支持预偏置输出
差分远程感应
外部SYNC
BPEXT 引脚通过支持外部偏置电源切换来提高效率
OC、OV、UV 和 OT 故障保护
40 引脚、
6mm × 6mm
、0.5mm 间距 VQFN 封装
40 引脚、
5mm × 5mm
、0.4mm 间距 WQFN 封装
使用 TPS40422 器件并借助
WEBENCH® Power Designer
创建定制设计方案