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PT7M6314US30D1TBEX

P1-P3P4-P6P7-P8
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Supervisory Circuit
2016-01-0003 PT0196-6 01/15/16
1
PT7M6314US
Features
Highly accurate: 1.5% (25°C)
Detect voltage range: 1.8 to 5V in 100mV increments
Operating voltage range: 1.0V ~ 5.5V
Operating temperature range: -40°C to + 85°C
Detect voltage temperature characteristics: 2.5%
TYP
Output configuration: Bi-dir
Four reset timeout period available:
typical 1.6ms for PT7M6314USxxD1;
typical 26ms for PT7M6314USxxD2;
typical 200ms for PT7M6314USxxD3;
typical 1570ms for PT7M6314USxxD4;
General Description
The series are designed to monitor power supplies in µP
and digital systems. It provides excellent circuit
reliability and low cost by eliminating external
components and adjustments, and a debounced manual
reset input.
This device performs a single function: it asserts a reset
signal whenever the V
CC
supply voltage falls below a
preset threshold or whenever manual reset is asserted.
Reset remains asserted for an internally programmed
interval (reset timeout period) after V
CC
has risen above
the reset threshold or manual reset is de-asserted.
PT7M6314USxx are bidirectional output, allowing it to
be directly connected to µP with bidirectional reset inputs.
The serials come with factory-trimmed reset threshold
voltages in 100mV increments from 2.5V to 5V. Preset
timeout periods of 200ms and 1570ms (typ.) are available.
Pin Configuration
Pin Description
Name
Type
Description
RST
I/O
Reset Output and Pushbutton Input: RST is asserted when V
CC
drops below voltage threshold V
TH-
. Active
low. When other devices pull RST low, the device will speed its rising edge once the reset condition release.
MR
I
Manual Reset: A logic low on MR asserts reset. Reset remains asserted as long as MR is low, and for the
reset timeout period (t
RS
) after the reset conditions are terminated. Connect to V
CC
if not used.
GND
P
Ground
V
CC
P
Supply Voltage.
1
2
VCC
RST
GND
3
4
MR
PT7M6315USxxD3F/D4F
SOT143-4
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2016-01-0003 PT0196-6 01/15/16
2
PT7M6314US
Supervisory Circuit
Maximum Ratings
Storage Temperature ............................................................-65C to +150C
Ambient Temperature with Power Applied .......................... -40C to +85C
Supply Voltage to Ground Potential (Vcc to GND) ..............-0.3V to +7.0V
DC Input Voltage (All inputs except Vcc and GND)......-0.3V to V
CC
+0.3V
DC Output Current (All outputs) ..........................................................30mA
Power Dissipation .......................................... 320mW (Depend on package)
DC Electrical Characteristics
(T
A
= -40~85ºC, unless otherwise noted. Typical values are at T
A
= +25ºC)
Description
Sym.
Min.
Typ.
Max.
Unit
Supply Voltage
V
CC
1.0
5.5
V
Supply Current
I
CC
12
µA
10
µA
Voltage Threshold
V
TH-
(V
TH-
)
0.985
V
TH-
(V
TH-
)
1.015
V
(V
TH-
)
0.975
V
TH-
(V
TH-
)
1.025
Hysteresis
V
HYS
50
mV
Output
Driving
Output low
V
OL
I
OH
= 8mA, V
CC
= 5V
0.4
V
I
OH
= 4mA, V
CC
= 3V
0.3
I
OH
= -50µA, V
CC
= 1V
0.09
Internal pull-up resistor
R
P
32
63
100
k
-
11
20
k
-
5
10
Input High Voltage
V
IH
MR
V
CC
< 4V
0.7×Vcc
V
V
CC
> 4V
2.4
Input Low Voltage
V
IL
MR
V
CC
< 4V
0.3×Vcc
V
V
CC
> 4V
0.8
RST active pull-up enable
threshold
V
THUP
0.7
0.9
1.2
V
RST active pull-up current
20
mA
Note: V
TH-
is voltage threshold when V
CC
falls from high to low. V
TH+
is voltage threshold when V
CC
rises from low to high.
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.
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2016-01-0003 PT0196-6 01/15/16
3
PT7M6314US
Supervisory Circuit
AC Electrical Characteristics
Timing diagram
t
R
VCC
RST
V
RST
1V
0V
t
RS
1V
0V
Uncertain state
0.5V
t
S
0.8V
CC
External pull down
signal release
0.5V
(V
CC
= 1.0V to 5.5V, T
A
= -40~85ºC, unless otherwise noted. Typical values are at T
A
= +25ºC)
Sym.
Description
Test Conditions
Part No.
Min.
Typ.
Max.
Unit
t
RS
Reset Timeout Period
6314USxxD1
1
1.6
2.2
ms
6314USxxD2
17
26
40
ms
6314USxxD3
140
200
280
ms
6314USxxD4
1120
1570
2240
ms
t
RPD
Delay
10
ns
t
SEN
Sensitivity
20
s
t
MD
MR to Reset Delay
500
ns
t
MR
MR Pulse Width
1
s
t
S
External Pull Down Signal Pulse
RST pin
1
s
t
R
RST Output Rise Time
V
CC
= 3V
C
LOAD
= 120pF
333
ns
C
LOAD
= 250pF
666
V
CC
= 5V
C
LOAD
= 200pF
333
C
LOAD
= 400pF
666
VCC
V
RST
1V
0V
t
RS
t
SEN
t
RS
t
RPD
1V
0V
Uncertain state
MR
t
MR
0V
t
RS
0.8V
RST
t
MD
V
IH
P1-P3P4-P6P7-P8

PT7M6314US30D1TBEX

Mfr. #:
Buy PT7M6314US30D1TBEX
Manufacturer:
Diodes Incorporated
Description:
Supervisory Circuits Bidirctnal/Debounced Reset Supervisory IC
Lifecycle:
New from this manufacturer.
Delivery:
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