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 Out...
Description
D Power-On Reset Generator D Automatic Reset Generation After Voltage
Drop
D Low Standby Current . . . 20 µA D RESET Output Defined When VCC
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, VCC, 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 (VIT−), 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 VCC 2 NC 3 GND 4
8 NC 7 NC 6 NC 5 NC
NC−No internal connection
LP PACKAGE (TOP VIEW)
GND VCC RESET
PK PACKAGE (TOP VIEW)
RESET
GND
VCC GND is in electrical contact with the tab.
ORDERING INFORMATION
TA
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)
R...
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