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TLV803MDBZR

更新时间： 2024-09-19 12:15:55
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德州仪器 - TI 监控
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16页 607K
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3-Pin Voltage Supervisors with Active-Low, Open-Drain Reset

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TLV803M, TLV803R  
TLV803S, TLV803Z  
TLV863M  
www.ti.com  
SBVS157B –APRIL 2011–REVISED AUGUST 2011  
3-Pin Voltage Supervisors  
with Active-Low, Open-Drain Reset  
Check for Samples: TLV803M, TLV803R, TLV803S, TLV803Z, TLV863M  
1
FEATURES  
DESCRIPTION  
The TLV803 family of supervisory circuits provides  
circuit initialization and timing supervision, primarily  
for DSPs and processor-based systems.  
2
•
•
•
3-Pin SOT23 Package  
Supply Current: 9 µA (Typical)  
Precision Supply Voltage Monitor:  
2.5 V, 3 V, 3.3 V, 5 V  
The TLV803 and TLV863 are functionally equivalent.  
The TLV863 provides an alternate pinout of the  
TLV803.  
•
Power-On Reset Generator with  
Fixed Delay Time of 200 ms  
During power-on, RESET asserts when the supply  
•
•
•
Pin-for-Pin Compatible with MAX803  
Temperature Range: –40°C to +125°C  
Open-Drain, RESET Output  
voltage (VDD  
)
becomes greater than 1.1 V.  
Thereafter, the supervisory circuit monitors VDD and  
keeps RESET active as long as VDD remains below  
the threshold voltage VIT. An internal timer delays the  
return of the output to the inactive state (high) to  
APPLICATIONS  
ensure proper system reset. The delay time (td(typ)  
=
•
•
•
•
•
•
•
•
DSPs, Microcontrollers, and Microprocessors  
Wireless Communication Systems  
Portable/Battery-Powered Equipment  
Programmable Controls  
200 ms) starts after VDD has risen above the  
threshold voltage, VIT. When the supply voltage drops  
below the VIT threshold voltage, the output becomes  
active (low) again. All the devices in this family have  
a fixed sense-threshold voltage (VIT) set by an  
internal voltage divider.  
Intelligent Instruments  
Industrial Equipment  
The product spectrum is designed for supply voltages  
of 2.5 V, 3 V, 3.3 V, and 5 V. The circuits are  
available in a 3-pin SOT-23 package. The TLV803  
Notebook and Desktop Computers  
Automotive Systems  
devices are characterized for operation over  
a
temperature range of –40°C to +125°C.  
DEVICE FAMILY COMPARISON  
DEVICE  
TLV803  
TLV809  
TLV810  
FUNCTION  
Open-Drain, RESET Output  
Push-Pull, RESET Output  
Push-Pull, RESET Output  
TYPICAL APPLICATION  
3.3-V LDO  
3.3 V  
OUT  
5 V  
IN  
TLV803  
DBZ Package  
(Top View)  
TLV863  
DBZ Package  
(Top View)  
GND  
VDD  
DSP/FPGA/ASIC  
1
3
2
1
GND  
RESET  
VDD  
TLV803S  
VDD  
3
GND  
RESET  
RESET  
GND  
GND  
2
RESET  
VDD  
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.  
2
All trademarks are the property of their respective owners.  
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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TLV803MDBZR 替代型号

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TLV803MDBZT TI

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