Document
PT7M6118-6150 CL/CH /NL
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Low Power Voltage Detector
Features
Highly accurate: 1.5% (25°C) Low power consumption: 1μA @ 3.6V Vcc Detect voltage range: 1.8 to 5V in 100mV
increments Operating voltage range: 1.2V ~ 5.5V Operating temperature range: -40°C to + 85°C Detect voltage accuracy over temperature: 2.5%
Typ Output configuration: N-channel open drain or
CMOS
Pin Configuration
Description
The PT7M61xx 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 1% and 5% threshold hysteresis circuit. Output is asserted when VCC falls below the internal VTH- and remains asserted until VCC rises above VTH+ (VTH+ = VTH-×1.05). 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 17µs. 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. These devices specified over the -40°C to +85°C temperature range.
2015-12-0005
PT0181-15
01/18/16
1
PT7M6118-6150 CL/CH /NL Low Power Voltage Detector
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Pin Description
Name Type
Description
111 RST O Reset Output (PT7M61xxCL/NL): RST is asserted when VCC drops below voltage threshold VTH-. Active
low.
RST O Reset Output (PT7M61xxCH). RST is asserted when VCC drops below voltage threshold VTH-. Active high.
GND P Ground VCC P Supply Voltage.
Block Diagram
Block Diagram of PT7M61xxCL/CH
Vcc
Reference Voltage 1.25V
+
RST / (RST)
(RST is for 61xxCH only)
GND
Block Diagram of PT7M61xxNL Vcc
Reference Voltage 1.25V
+
RST GND
2015-12-0005
PT0181-15
01/18/16
2
PT7M6118-6150 CL/CH /NL Low Power Voltage Detector
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Maximum Ratings
Storage Temperature ............................................................-65oC to +150oC Ambient Temperature with Power Applied.......................... -40oC to +85oC 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 VCC+0.3V DC Output Current (All outputs) ..........................................................20mA Power Dissipation .......................................... 320mW (Depend on package)
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 conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.
DC Electrical Characteristics
(VCC = 1.2V to 5.5V, TA= -40~85ºC, unless otherwise noted. Typical values are at TA = +25ºC)
Description
Sym.
Test Conditions
Min
Typ
Max
Unit
Supply Voltage
TA= 0~70ºC VCC
TA= -40~85ºC
1.0 - 5.5
V
1.2 - 5.5
Supply Current
Output Driving
Output high Output low
Open-Drain Output Leakage Current
Voltage Threshold
ICC VOH
VOL ILKG VTHVTH+
VCC = 3.6V. No load. VCC = 5V. No load.
VCC ≥ 1.8V, Isource = 1mA VCC ≥ 2.5V, Isource = 3mA VCC ≥ 4.5V, Isource = 8mA VCC ≥ 1.2V, Isink = 1mA VCC ≥ 2.5V, Isink = 4mA VCC ≥ 4.5V, Isink = 9mA
-
+25C
-40C~85C
+25C
-40C~85C
-
-
0.8×Vcc
0.8×Vcc
0.8×Vcc
-
-
-
-
(VTH-) 0.985 (VTH-) 0.975 (VTH+) 0.985 (VTH+) 0.975
1.0 1.3 -
-
VTHVTHVTH+ VTH+
3.0
3.6
-
-
-
0.3
0.3
0.4
1
(VTH-) 1.015 (VTH-) 1.025 (VTH+) 1.015 (VTH+) 1.025
µA µA V
V A
V
voltage threshold Hysteresis
VHYST
VHYST = [(VTH+)-(VTH-)]/(VTH-) 100%
3 -
4.5 1
6 -
%
Note: VTH+ = 1.05 VTH- 。VTH- is vo.