TL7757_14 Datasheet, PDF (1/20 Pages) Texas Instruments – SUPPLY-VOLTAGE SUPERVISOR AND PRECISION VOLTAGE DETECTOR

D Power-On Reset Generator
D Automatic Reset Generation After Voltage
Drop
D Low Standby Current . . . 20 µA
D RESET Output Defined When V_CC
Exceeds 1 V
D Precision Threshold Voltage
4.55 V ±120 mV
D High Output Sink Capability . . . 20 mA
D Comparator Hysteresis Prevents Erratic
Resets
description/ordering information
The TL7757 is a supply-voltage supervisor
designed for use in microcomputer and
microprocessor systems. The supervisor
monitors the supply voltage for undervoltage
conditions. During power up, when the supply
voltage, V_CC, attains a value approaching 1 V, the
RESET output becomes active (low) to prevent
undefined operation. If the supply voltage drops
below threshold voltage level (V_IT−), the RESET
output goes to the active (low) level until the
supply undervoltage fault condition is eliminated.
TL7757
SUPPLY-VOLTAGE SUPERVISOR
AND PRECISION VOLTAGE DETECTOR
SLVS041I − SEPTEMBER 1991 − REVISED AUGUST 2003
D PACKAGE
(TOP VIEW)
RESET 1
V_CC 2
NC 3
GND 4
8 NC
7 NC
6 NC
5 NC
NC−No internal connection
LP PACKAGE
(TOP VIEW)
GND
V_CC
RESET
PK PACKAGE
(TOP VIEW)
RESET
GND
VCC
GND is in electrical contact with the tab.
ORDERING INFORMATION
T_A
PACKAGE^†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
SOIC (D)
Tube of 75
Reel of 2500
TL7757CD
TL7757CDR
7757C
0°C to 70°C
SOT (PK)
TO226 / TO-92 (LP)
Reel of 1000
Bulk of 1000
Reel of 2000
TL7757CPK
TL7757CLP
TL7757CLPR
T7
TL7757C
SOIC (D)
Tube of 75
Reel of 2500
TL7757ID
TL7757IDR
7757I
−40°C to 85°C SOT (PK)
Reel of 1000 TL7757IPK
7I
Bulk of 1000
TO226 / TO-92 (LP)
Reel of 2000
TL7757ILP
TL7757ILPR
TL7757I
† _{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.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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Copyright  2003, Texas Instruments Incorporated
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