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TPS25940L-Q1

更新时间： 2024-11-25 02:49:55
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德州仪器 - TI 电池
页数 文件大小 规格书
50页 4089K
描述
TPS25940x-Q1 2.7-V to 18-V eFuse with Integrated Short-to-Battery Protection

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TPS25940L-Q1 数据手册

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TPS25940-Q1  
SLVSDJ0D –MAY 2016–REVISED SEPTEMBER 2018  
TPS25940x-Q1 2.7-V to 18-V eFuse with Integrated Short-to-Battery Protection  
1 Features  
3 Description  
The TPS25940x-Q1 eFuse Power Switches are  
compact, feature rich power management devices  
with a full suite of protection functions. The wide  
operating range allows control of many popular DC  
bus voltages. Integrated back-to-back FETs provide  
bidirectional current control making the device well  
suited for systems with load side holdup energy that  
must not drain back to a failed supply bus.  
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  
–
–
Device HBM ESD Classification Level 2  
Device CDM ESD Classification Level C5  
Load, source and device protection are provided with  
many programmable features including overcurrent,  
•
•
•
•
•
•
•
•
•
•
•
•
•
2.7-V to 18-V Operating Voltage, 20 V (Maximum)  
Total RON: 42 mΩ (Typical)  
dVo/dt  
ramp  
and  
overvoltage,  
undervoltage  
0.6-A to 5.3-A Adjustable Current Limit (±8%)  
IMON Current Indicator Output (±8%)  
Adjustable Under-, Overvoltage Threshold (±2%)  
Reverse Current Blocking  
thresholds. For system status monitoring and  
downstream load control, the device provides  
PGOOD, FLT and precise current monitor output.  
Precise programmable undervoltage, overvoltage  
thresholds and mode simplify power management  
design.  
1-μs Reverse Voltage Shutoff  
Programmable dVo/dt Control  
The TPS25940x-Q1 monitor V(IN) and V(OUT) to  
provide true reverse current blocking when V(IN)  
(V(OUT) – 66 mV). This function supports supply bus  
protection from over-voltages during output short to  
battery faults.  
<
Power Good and Fault Outputs  
Short-to-Battery Protection  
Short-to-Ground Protection  
TPS25940-Q1: Auto-Retry  
Device Information(1)  
TPS25940L-Q1: Latch-Off  
PART NUMBER  
TPS25940-Q1  
PACKAGE  
BODY SIZE (NOM)  
2 Applications  
WQFN (20)  
3.00 mm x 4.00 mm  
TPS25940L-Q1  
•
•
•
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•
Automotive Infotainment  
ADAS Cameras and Radar Sensors  
USB Hubs  
(1) For all available packages, see the orderable addendum at  
the end of the data sheet.  
Power MUXing  
Holdup Power Management  
Simplified Schematic  
Output Short-to-Battery Detection and Protection  
5 V Power Bus  
R1  
IN  
OUT  
IN  
OUT  
USB Connector  
*
CIN  
COUT  
42mΩ  
R4  
VBUS  
D-  
EN/UVLO  
OVP  
FLT  
PGTH  
PGOOD  
D+  
R2  
R3  
DEVSLP  
dVdT  
GND  
IMON  
ILIM  
GND  
CdVdT  
RILIM  
TPS25940-Q1  
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. UNLESS OTHERWISE NOTED, this document contains PRODUCTION  
DATA.  
 
 
 
 
 
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