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TPS65288RHAT PDF预览

TPS65288RHAT

更新时间： 2023-06-19 15:23:20
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德州仪器 - TI 开关转换器
页数 文件大小 规格书
75页 1420K
描述
具有双负载开关的 4.5V 至 18V 输入、3A/2A/2A 同步降压转换器 | RHA | 40 | -40 to 125

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TPS65288RHAT 数据手册

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Sample &  
Buy  
Support &  
Community  
Product  
Folder  
Tools &  
Software  
Technical  
Documents  
TPS65400-Q1  
SLVSCQ2 –JULY 2015  
TPS65400-Q1 4.5- to 18-V Input Flexible Power Management Unit With PMBus/I2C Interface  
1 Features  
–
–
PWM Frequency Adjustment for Each Switcher  
Individual PWM Phase Alignment for Each  
Switcher to Minimize Ripple and Capacitor  
Size  
1
•
•
Qualified for Automotive Applications  
AEC-Q100 Qualified With the Following Results:  
–
Device Temperature Grade 1: –40°C to 125°C  
Ambient Operating Temperature Range  
–
–
Adjustable Current Limit on Each Regulator  
Enables Size and Cost Optimization of  
Inductors  
–
–
Device HBM ESD Classification Level H2  
Device CDM ESD Classification Level C4B  
Soft-Start Time  
•
•
Efficiency up to 95% for Each Switching Regulator  
Switching Regulator Specifications:  
2 Applications  
–
–
–
–
Input Voltage Range: 4.5 to 18 V  
Vout Range: 0.6 V-90%Vin  
SW1, SW2 Iout: 4-A Max  
SW3, SW4 Iout: 2-A Max  
•
•
Qualified for Automotive Applications  
Small Cellular Base Stations (BTS) (for Example:  
Picocells and Microcells); Macro BTS (Using  
Multiple PMUs)  
•
Power over Ethernet (PoE) Powered  
Communications Infrastructure Equipment  
•
•
Pre-Bias Startup Algorithm Minimizes Voltage Dip  
During Startup  
•
•
•
Powering DSP and MCUs  
Internal Undervoltage Lockout (UVLO),  
Overcurrent Protection (OCP), Overvoltage  
Protection (OVP), and Overtemperature Protection  
(OTP)  
Industrial and Factory Automation  
Systems Requiring Small Form Factor, High-  
Efficiency, High-Ambient Operating Temperature,  
and Flexible Power Management  
•
•
Thermally-Enhanced 7-mm × 7-mm 48-Pin, 0.5-  
mm Pitch VQFN Package  
3 Description  
Pin Accessible Features:  
The TPS65400-Q1 is an integrated PMU optimized  
for applications requiring small form factor and high  
power conversion efficiency, enabling small space-  
constrained equipment with high ambient operating  
temperature without cooling. It provides high-power  
efficiency at a system level by enabling a single stage  
conversion from an intermediate distribution bus with  
an optimized combination of regulators.  
–
–
–
Adjustable VOUT With External Feedback  
Resistors  
Sequencing Control Through Precision Enable  
Pins for Each Switcher  
Resistor Adjustable PWM Switching Frequency  
from 275 kHz to 2.2 MHz  
–
–
–
Clock Sync Input and Clock Output  
Device Information(1)  
Soft-Start Delay Through External Capacitor  
Current Sharing Between SW1 and SW2 and  
Between SW3 and SW4 Allows Support of  
Higher Current Needs if Required  
PART NUMBER  
PACKAGE  
BODY SIZE (NOM)  
TPS65400-Q1  
VQFN (48)  
7.00 mm × 7.00 mm  
(1) For all available packages, see the orderable addendum at  
the end of the data sheet.  
•
•
PMBus Runtime Control and Status  
–
Runtime Voltage Positioning Through  
Adjustment of VREF  
Simplified Schematic  
Vin: 4.5 to 18 V  
–
–
Enable and Disable of Each Switcher  
Fault and Status Monitoring  
4 A  
4 A  
2 A  
2 A  
User-Configurable PMBus / I2C Options, Saved in  
EEPROM  
BUCK1  
BUCK2  
BUCK4  
BUCK3  
–
–
–
Power Supply Turn-On and Turn-Off  
Sequencing  
Sequencing can be Based on Fixed Time  
Delays or PGOOD Dependence  
PMBus/I2C  
Initial Voltage Positioning Through VREF  
Configuration  
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,  
intellectual property matters and other important disclaimers. PRODUCTION DATA.  
 
 
 
 
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中文翻译

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TPS65288RHAT 替代型号

型号 品牌 替代类型 描述 数据表
TPS65287RHAT TI

完全替代

 具有负载开关和按钮控制的 4.5V 至 18V 输入、3A/2A/2A 同步降压转换器 |
TPS65288RHAR TI

类似代替

 具有双负载开关的 4.5V 至 18V 输入、3A/2A/2A 同步降压转换器 | RHA
TPS65287RHAR TI

功能相似

 具有负载开关和按钮控制的 4.5V 至 18V 输入、3A/2A/2A 同步降压转换器 |

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