PT7M6418 Datasheet, PDF (1/12 Pages) Pericom Semiconductor Corporation – Low Power Voltage Detector

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Features
PT7M6418 -6450 CL/CH /NL
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Low Power Voltage Detector
Description
 High accuracy: 2% (25°C)
The PT7M64xx series are µP supervisory circuits with
 Low power consumption: 0.6μA @ 3V Vcc
a minimum reset timeout period of 120ms. Each circuit
 Detecting voltage range: 1.8 to 5V in 100mV ^{includes a precise bandgap reference; a comparator, a}
increments
reset timeout circuit, internally trimmed resistor
 Operating voltage range: 1.2V ~ 5.5V
networks that set specified trip thresholds, and an
 Operating temperature range: -40°C to + 85°C
internal 5% threshold hysteresis circuit (see the Block
 Detecting voltage accuracy over temperature: 2.5% ^{Diagram). Output is asserted when VCC falls below the}
 TYP
internal V_TH- and remains asserted until V_CC rises above
 Output configuration: N-channel open drain or CMOS ^{VTH+ (VTH+ = VTH-×1.05) after a reset timeout period.}
 Reset timeout period at least 120ms
These devices provide excellent circuit reliability and
low cost by eliminating external components and
adjustments when monitoring normal systems voltage
from +1.8V to +5V in 100mV increments. The series
are voltage detectors with a propagation delay of 35µs.
The family is available with four output stage options:
push-pull with active-low output, push-pull with active-
high output, open drain with active-low output and
bidirection port with active-low output and pushbutton
reset input. These devices specified over the -40°C to
+85°C temperature range.
Table 1. Function comparison
Item
Part No.
1 PT7M64xxCL
2 PT7M64xxCH
3 PT7M64xxNL
Reset Output
Open-Drain
Push-Pull
Active high Active low Active high Active low
-
-
-

-
-

-
-

-
-
Reset
bi-direction
Threshold
-
1.8V to 5.0V
-
in 100mV
-
increments
12-11-0002
PT0200-11 11/01/12
1