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PT7M6243CHBTDEX

Power Supply Support Circuit,

器件类别:电源/电源管理    电源电路   

厂商名称:Diodes Incorporated

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器件参数
参数名称
属性值
厂商名称
Diodes Incorporated
包装说明
,
Reach Compliance Code
unknown
ECCN代码
EAR99
模拟集成电路 - 其他类型
POWER SUPPLY SUPPORT CIRCUIT
文档预览
PT7M6218
-6250CL/CH /NL/CLL/NLL
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Voltage Detector
Features
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
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.
Pin Description
Name
Type
Description
111
Reset Output (PT7M62xxCL/NL/CLL/NLL):
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
O
RST
GND
VCC
O
P
P
12-07-0002
1
PT0270-1
07/09/12
PT7M6218 -6250CL/CH /NL/CLL/NLL
Voltage Detector
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Pin Configuration
SC70-4
12-07-0002
2
PT0270-1
07/09/12
PT7M6218 -6250CL/CH /NL/CLL/NLL
Voltage Detector
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Block Diagram
Block Diagram of PT7M62xxCL/CH/CLL
Vcc
-
+
RST / (RST)
(RST is for
62xxCH only)
GND
Reference
Voltage
1.25V
Block Diagram of PT7M62xxNL/NLL
Vcc
-
+
RST
GND
Reference
Voltage
1.25V
12-07-0002
3
PT0270-1
07/09/12
PT7M6218 -6250CL/CH /NL/CLL/NLL
Voltage Detector
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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+
)
1.005
(V
TH+
)
1.015
(V
TH+
)
1.01
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+
)
0.993
(V
TH+
)
0.985
(V
TH+
)
0.99
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
I
LKG
-
+25C
V
TH+
V
TH+
V
TH+
Voltage Threshold
V
TH+
-10C~60C(PT7M62xxxxB)
-10C~60C(PT7M62xxxx)
V
V
HYST
= [(V
TH+
)-(V
TH-
)]/(V
TH-
)
%
3
5
6
100%
Note:
V
TH-
= V
TH+
/ 1.05. 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
12-07-0002
4
PT0270-1
07/09/12
PT7M6218 -6250CL/CH /NL/CLL/NLL
Voltage Detector
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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
Description
Timeout Period
-
Test Conditions
Min
-
Typ
20
Max
-
Unit
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 0.1F. R
L
could be 1kto 510k.
12-07-0002
5
PT0270-1
07/09/12
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