ꢀꢁ ꢂꢂ ꢃꢃ
ꢄꢅ ꢆꢆꢁꢇꢈꢉꢊ ꢁꢀꢋꢌ ꢍ ꢄꢅ ꢆꢍ ꢎꢉ ꢏꢄ ꢊ ꢎ
SLVS220C − JULY 1999 − REVISED NOVEMBER 2004
P, PS, OR PW PACKAGE
(TOP VIEW)
D
Adjustable Sense Voltage With Two
External Resistors
D
Adjustable Hysteresis of Sense Voltage
CT
SENSE
NC
RESET
NC
NC
1
2
3
4
8
7
6
5
D
Wide Operating Supply-Voltage
Range . . . 1.8 V to 40 V
GND
V
D
D
D
Wide Operating Temperature
Range . . . −40°C to 85°C
CC
NC − No internal connection
Low Power Consumption (I
= 0.6 mA
CC
TYP, V
= 40 V)
CC
Minimum External Components
description/ordering information
The TL7700 is a bipolar integrated circuit designed for use as a reset controller in microcomputer and
microprocessor systems. The SENSE voltage can be set to any value greater than 0.5 V using two external
resistors. The hysteresis value of the sense voltage also can be set by the same resistors. The device includes
a precision voltage reference, fast comparator, timing generator, and output driver, so it can generate a
power-on reset signal in a digital system.
The TL7700 has an internal 1.5-V temperature-compensated voltage reference from which all function blocks
are supplied. Circuit function is very stable, with supply voltage in the 1.8-V to 40-V range. Minimum supply
current allows use with ac line operation, portable battery operation, and automotive applications.
ORDERING INFORMATION
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
†
PACKAGE
T
A
PDIP (P)
Tube of 50
TL7700CP
TL7700CP
SOP (PS)
Reel of 2000
Tube of 150
Reel of 2000
TL7700CPSR
TL7700CPW
TL7700CPWR
T7700
−40°C to 85°C
TSSOP (PW)
T7700
†
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
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.
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Copyright 2004, Texas Instruments Incorporated
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