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TPS43351QDAPQ1 PDF预览

TPS43351QDAPQ1

更新时间: 2024-02-16 15:33:17
品牌 Logo 应用领域
德州仪器 - TI 开关光电二极管
页数 文件大小 规格书
28页 1314K
描述
IC 0.4 A DUAL SWITCHING CONTROLLER, 600 kHz SWITCHING FREQ-MAX, PDSO38, PLASTIC, HTSSOP-38, Switching Regulator or Controller

TPS43351QDAPQ1 技术参数

生命周期:Obsolete零件包装代码:TSSOP
包装说明:HTSSOP,针数:38
Reach Compliance Code:unknownECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.84
其他特性:OPERATES IN ADJUSTABLE MODE FROM 0.9 TO 11V, ALSO HAS CONTROL TECHNIQUE OF PFM模拟集成电路 - 其他类型:DUAL SWITCHING CONTROLLER
控制模式:CURRENT-MODE控制技术:PULSE WIDTH MODULATION
最大输入电压:40 V最小输入电压:4 V
标称输入电压:13 VJESD-30 代码:R-PDSO-G38
长度:12.5 mm功能数量:1
端子数量:38最高工作温度:125 °C
最低工作温度:-40 °C最大输出电流:0.4 A
标称输出电压:5.8 V封装主体材料:PLASTIC/EPOXY
封装代码:HTSSOP封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH筛选级别:AEC-Q100
座面最大高度:1.2 mm表面贴装:YES
切换器配置:PHASE-SHIFT最大切换频率:600 kHz
温度等级:AUTOMOTIVE端子形式:GULL WING
端子节距:0.65 mm端子位置:DUAL
宽度:6.1 mmBase Number Matches:1

TPS43351QDAPQ1 数据手册

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TPS43350-Q1  
TPS43351-Q1  
www.ti.com  
SLVSAR7A JUNE 2011REVISED NOVEMBER 2011  
LOW IQ, DUAL SYNCHRONOUS BUCK CONTROLLER  
Check for Samples: TPS43350-Q1, TPS43351-Q1  
1
FEATURES  
Two Synchronous Buck Controller  
Channels  
Input Range up to 40V, (transients up to 60 V)  
Peak Gate Drive Current 1.5 A  
Low Power Mode IQ: 30 µA (one Buck on), 35  
µA (two Bucks on)  
Thermally Enhanced Package 38-pin  
HTSSOP (DAP) with PowerPadTM  
Low Shutdown Current Ish < 4 µA  
Qualified for Automotive Applications  
Buck Output Range 0.9 V to 11 V  
APPLICATIONS  
Programmable frequency and External  
Automotive Infotainment, Navigation and  
Instrument Cluster Systems  
Synchronization Range 150 kHz to 600 kHz  
Separate Enable Inputs (ENA, ENB)  
Industrial/Automotive Multi-Rail DC Power  
Distribution Systems & Electronic Control  
Units  
Frequency Spread Spectrum (TPS43351)  
Selectable Forced Continuous Mode or  
Automatic Low Power Mode at Light Loads  
Sense Resistor or Inductor DCR Sensing  
Out of Phase Switching between Buck  
DESCRIPTION  
The TPS43350/1 includes two current mode synchronous buck controllers designed for the harsh environment in  
automotive applications. The part is ideally suited in multi-rail system with low quiescent requirements as the part  
will automatically operate in low power mode (consuming only 30µA) at light loads. The part offers protection  
features such as thermal, soft-start and over current protection. During short circuit conditions of the regulator  
output, the current through the MOSFETs can be limited for power dissipation by activation of the current fold  
back concept. The two independent soft start inputs allow ramp up of the output voltage independently during  
start up.  
The switching frequency can be programmed over 150kHz to 600kHz or synchronized to an external clock in the  
same range. Additionally, the TPS43351 offers frequency-hopping spread spectrum operation.  
spacer  
VBAT  
Reverse  
Battery  
MOSFET  
Control  
VBUCKA  
Internal  
VREG  
RCOSC  
External  
SYNC  
Sync  
ENA  
Buck  
Enalbe  
ENB  
SSA  
SSA  
VBUCKB  
SoftStart  
DLYAB  
Figure 1. Typical Application Diagram  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas  
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2011, Texas Instruments Incorporated  

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