PT7M6218
-6250CL/CH /NL/CLL/NLL
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Voltage Detector
Features
Description
The PT7M62xx serials of ultra-low-power voltage
detectors monitor battery, power-supply and system
voltages. Each circuit includes a precision bandgap
reference, a comparator, internally trimmed resistor
networks that set specified trip thresholds, and an
internal 5% threshold hysteresis circuit. Output is
asserted when VCC rises above VTH+ (VTH+ = VTH- ×
1.05) and remains asserted until VCC falls below the
internal VTH-. These devices provide excellent circuit
reliability and low cost by eliminating external
components and adjustments when monitoring nominal
system voltages from +1.8V to +5V in 100mV
increments. The series are voltage detectors with a
propagation delay of 20µ CC rise).
s(V
The family is available with three output stage options:
push-pull with active-low output, push-pull with
activehigh output, and open drain with active-low output.
Highly precision: -0.7%~+0.5% (25° ±1%(C);
10° to 60° for PT7M62xxxx); ±1.5%(-10°
C
C,
C
to 60° for PT7M62xxxxB)
C,
Low power consumption: 0.9uA @ 3V Vcc
Detect voltage range: 1.8 to 5V in 100mV
increments
Operating voltage range: 1.2V ~ 5.5V
Output configuration: N-channel open drain or
CMOS
Special threshold voltage product according to
customer need
Pin Description
Name
Type
Description
RST
O
111
Reset Output (PT7M62xxCL/NL/CLL/NLL): RST is asserted when VCC drops below voltage threshold
VTH-. Active low.
RST
O
Reset Output (PT7M62xxCH). RST is asserted when VCC drops below voltage threshold VTH-. Active high.
GND
P
Ground
VCC
P
Supply Voltage.
12-07-0002
PT0270-1
1
07/09/12
