PT7M6218-6250 CL/CH/NL
Voltage Detector
Features
Highly precision:
±1.5%
(25°
±2.5%(-40°
C);
C
to +85°
C);
Low power consumption: 1.0μA @ 3.6V 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
Operating temperature range: -40° to + 85°
C
C
Detect voltage temperature characteristics:
2.5%
TYP
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 V
CC
rises above V
TH+
(V
TH+
= V
TH-
×
1.05) and remains asserted until V
CC
falls below the
internal V
TH-
. 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
active-high output, and open drain with active-low
output.
Function Comparison Table
Reset Output
Item
1
2
3
Part No.
PT7M62xxCL
PT7M62xxCH
PT7M62xxNL
Open-Drain
Active high
Active low
-
-
-
-
-
Push-Pull
Active high
Active low
-
-
-
-
Threshold
1.8V to 5.0V in 100mV
increments
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2017-04-0009
www.diodes.com
5/10/2017
PT0270-3
1
PT7M6218-6250 CL/CH/NL
Pin Configuration
Pin Description
Name
RST
Type
O
Description
Reset Output (PT7M62xxCL/NL):
RST is asserted when V
CC
drops below voltage threshold V
TH-
. Active
low.
Reset Output (PT7M62xxCH).
RST is asserted when V
CC
drops below voltage threshold V
TH-
. Active
high.
Ground
Supply Voltage.
RST
GND
VCC
O
P
P
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2017-04-0009
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5/10/2017
PT0270-3
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PT7M6218-6250 CL/CH/NL
Block Diagram
Block Diagram of PT7M62xxCL/CH
Vcc
-
+
RST / (RST)
(RST is for
62xxCH only)
GND
Reference
Voltage
1.25V
Block Diagram of PT7M62xxNL
Vcc
-
+
RST
GND
Reference
Voltage
1.25V
All trademarks are property of their respective owners.
2017-04-0009
www.diodes.com
5/10/2017
PT0270-3
3
PT7M6218-6250 CL/CH/NL
Maximum Ratings
Storage Temperature ............................................................-65 C to +150 C
Ambient Temperature with Power Applied.......................... -40
o
C to +85
o
C
Supply Voltage to Ground Potential (Vcc to GND) ..............-0.3V to +6.0V
DC Input Voltage (All inputs except Vcc and GND)......-0.3V to V
CC
+0.3V
DC Output Current (All outputs) ..........................................................20mA
Power Dissipation .......................................... 320mW (Depend on package)
o
o
Note:
Stresses greater than those listed under MAXIMUM
RATINGS may cause permanent damage to the
device. This is a stress rating only and functional
operation of the device at these or any other condi-
tions above those indicated in the operational sec-
tions of this specification is not implied. Exposure
to absolute maximum rating conditions for extended
periods may affect reliability.
DC Electrical Characteristics
(V
CC
= 1.2V to 5.5V, T
A
= -40~85º unless otherwise noted. Typical values are at T
A
= +25º
C,
C)
Description
Supply Voltage
Sym.
V
CC
Test Conditions
Min
1.0
Typ
-
Max
5.5
V
Unit
T
A
= 0~70º
C
T
A
= -40~85º
C
V
CC
= 3V. No load.
Supply Current
I
CC
V
CC
= 5V. No load.
1.2
-
-
-
0.9
1.3
-
-
-
-
-
-
-
5.5
3.0
3.6
-
-
-
0.3
0.3
0.4
1
(V
TH+
)
1.015
(V
TH+
)
1.025
A
V
V
µA
µA
V
CC
≥ 1.8V, I
source
= 1mA
Output high
Output
Driving
Output low
V
OL
V
OH
0.8×
Vcc
0.8×
Vcc
0.8×
Vcc
-
-
-
-
(V
TH+
)
0.985
(V
TH+
)
0.975
V
CC
≥ 2.5V, I
source
= 3mA
V
CC
≥ 4.5V, I
source
= 8mA
V
CC
≥ 1.2V, I
sink
= 1mA
V
CC
≥ 2.5V, I
sink
= 4mA
V
CC
≥ 4.5V, I
sink
= 9mA
Open-Drain Output
Leakage Current
Voltage Threshold
I
LKG
-
+25C
V
TH+
V
TH+
V
TH+
-40C~85C
V
V
HYST
= [(V
TH+
)-(V
TH-
)]/(V
TH-
)
%
3
5
6
100%
Note:
V
TH-
= V
TH+
/ 1.045. V
TH-
is voltage threshold when Vcc falls from high to low.
V
TH
＋
is voltage threshold when Vcc
rises from low to high.
voltage threshold Hysteresis
V
HYST
All trademarks are property of their respective owners.
2017-04-0009
www.diodes.com
5/10/2017
PT0270-3
4
PT7M6218-6250 CL/CH/NL
AC Electrical Characteristics
Timing diagram
V
CC
V
TH+
V
TH-
t
RP
RST
t
RP
RST
(PT7M62xxCH)
V
TH+
= 1.05 x V
TH-
(V
CC
= 1.2V to 5.5V, T
A
= -40~85º unless otherwise noted. Typical values are at T
A
= +25º
C,
C)
Sym.
t
RP
t
P
Description
Timeout Period
Delay
-
-
Test Conditions
Min
-
-
Typ
-
50
Max
200
-
Unit
s
s
Typical Operation Circuit
PT7M62xxNL Application Example
V
IN
PT7M62xxNL
R
L
Vcc
GND
RST
Please use N-ch open drains configuration, when a resistor
RIN
is connected between the V
CC
pin and power source V
IN
.
In such cases, please ensure that R
IN
is less than 10k and that C is more than 0.1F. R
L
could be 1kto 510k.
All trademarks are property of their respective owners.
2017-04-0009
www.diodes.com
5/10/2017
PT0270-3
5
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