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
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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.
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Power-On Reset Generator with
Fixed Delay Time of 200 ms
During power-on, RESET asserts when the supply
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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)
=
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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
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Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
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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