E-CMOS EC95809NZA6R 3-pin microprocessor reset monitor Datasheet

EC95809
3-Pin Microprocessor Reset Monitor
SDescription
Features
The EC95809 is a cost-effective system
● Precision VCC Monitor for 2.8V, 3.0V, 3.3V, and
supervisor Integrated Circuit (IC) designed to
monitor VCC in digital and mixed signal systems and
provide a warning signal when the system power
supply is out of working range, and a reset signal to
the host processor when necessary. No external
components are required.
5.0V Supplies
● 150msec typical delay for RESET Output
● RESET Output Guaranteed to VCC=1.0V
● Low 20μA Supply Current
● VCC Transient Immunity
● No External Components
The reset output is driven active within 20μsec
● Small SOT-23 Package and TO-92 Package
of VCC falling through the reset voltage threshold.
● Wide Operating Temperature: -40°C to 85°C
Reset is maintained active for a typical delay of
● 100% Lead (Pb)-Free
150msec after VCC rises above the reset threshold.
The EC95809 has an active-low RESET output.
The output of the EC95809 is guaranteed valid
down to VCC=1V in most applications. Please see
Application
application section for more details.
The EC95809 is optimized to reject fast
transient glitches on the VCC line. Low supply
current of 18μA (VCC=3.3V) makes these devices
suitable for battery powered applications. The
● Computers/Portable Devices
● Embedded systems
● Battery powered equipment
● Critical µP power supply monitoring
output voltages range from 1.7V to 4.5V in 100mV
increments. Standard voltage versions are 2.63,
2.93, 3.08, 4.0, 4.38, and 4.63V.
Pin Configuration
E-CMOS Corp. (www.ecmos.com.tw)
Application Diagram
Page 1 of 6
4J20N-Rev.F003
EC95809
3-Pin Microprocessor Reset Monitor
PIN DESCRIPTION:
Symbol
Description
GND
Ground
RESET
RESET output remains low while Vcc is below the reset voltage
threshold and for 150msec(typ) after Vcc rises above reset threshold
Vcc
Supply Voltage (typ.)
Ordering Information
Marking Information(SOT23-3L)
Device
Voltage
Marking
Package
Detection
Information
Type
4.63V
S809La
EC95809NLB1R
Remarks
1. Starting with S,a bar on top of S is for
production year 2013,and underlined S
EC95809NMB1R
4.38V
is for 2014.The next character is
S809Ma
marked .on top for 2015 and underlined
EC95809NJB1R
4.00V
for 2016.The naming pattern continues
S809Ja
SOT23-3L
EC95809NTB1R
3.08V
S809Ta
with consecutive characters for last year.
th
2. the 5 character denotes a suffix for VCC
threshold.
EC95809NSB1R
2.93V
3. The last character is the week code
S809Sa
(A-Z:1-26;a-z:27-25).
*A dot on top right corner is for lead-free.
EC95809NRB1R
E-CMOS Corp. (www.ecmos.com.tw)
2.63V
S809Ra
Non-dot on top right corner is for Green.
Page 2 of 6
4J20N-Rev.F003
EC95809
3-Pin Microprocessor Reset Monitor
Marking Information(TO92-3L)
Device
Voltage
Marking
Package
Detection
Information
Type
Remarks
1.
Starting with underlined 0, a bar is
for production year 2012. The next bar is
mark on top of 9 is for year 2013. The
next bar is mark on bottom of 9 is for
year 2014. The next bar is mark on top of
EC95809NZA6R
2.30V
809Zf
TO92-3L
Z is year for 2015. The naming pattern
continues with consecutive characters
for later years.
2.
f is the week of production. The big
character of A~Z is for the week of 1~26,
and small a~z is for the week of 27~52.
Absolute Maximum Ratings(1)
Parameter
Symbol
Value
Units
Input Voltage
VCC
5.5
V
Output Voltage
RESET
-0.3 to (VCC + 0.3)
V
20
mA
Input Current
Output Current
IOUT
Power Dissipation
PD
20
Internally Limited
Output Short Circuit Duration
mA
(3)
Infinite
Thermal Resistance, Junction-to-Ambient
ΘJA
230
°C/W
Operating Temperature Range
TA
-40 ~ 85
℃
260
°C
Lead Temperature (Soldering, 10 sec.)
Junction Temperature
TJ
0 to +125
°C
Storage Temperature
TS
-60 to +150
°C
Operating Rating(2)
E-CMOS Corp. (www.ecmos.com.tw)
Parameter
Symbol
Value
Units
Supply Input Voltage
VCC
+2.0V to +5.5
V
Junction Temperature
TJ
0 to +125
°C
Page 3 of 6
4J20N-Rev.F003
EC95809
3-Pin Microprocessor Reset Monitor
Electrical Characteristics
Vcc=5V for L/M/J ;3.3V for T/S ;3.0V for R ,TA = 25°C, unless otherwise specified.
Symbol
Parameter
VCC
Input Voltage
ICC
Supply Current
VTH
Condition
Reset Threshold
Typ
Max
Unit
2.0
5.5
V
--
13
A
EC95809NL-4.63V
4.514
4.63
4.746
EC95809NM-4.38V
4.271
4.380
4.490
EC95809NJ-4.00V
3.900
4.000
4.100
EC95809NT-3.08V
3.003
3.080
3.157
EC95809NS-2.93V
2.857
2.930
3.003
EC95809NR-2.63V
2.564
2.630
2.696
EC95809NZ-2.30V
2.194
2.250
2.306
--
30
--
ppm/°C
--
20
--
μsec
--
150
500
msec
Reset Threshold Temperature
Coefficient
Min
(4)
VCC to Reset Delay VCC = VTH to (VTH –
100mV)
Reset Active Timeout Period
V
VOL
RESET Output Voltage Low
ISINK = 3.2mA
--
--
0.4
V
VOH
RESET Output Voltage High
ISOURCE = 800μA
0.8VCC
--
--
V
Note 1: Exceeding the absolute maximum rating may damage the device.
Note 2: The device is not guaranteed to function outside its operating rating.
Note 3: The maximum allowable power dissipation at any TA (ambient temperature) is calculated using: PD(MAX) =
(TJ(MAX) – TA)/ΘJA.
Exceeding the maximum allowable power dissipation will result in excessive die temperature,
and the regulator will go into thermal shutdown.
See “Thermal Consideration” section for details
Note 4: RESET threshold temperature coefficient is the worst case voltage change divided by the total temperature
range.
E-CMOS Corp. (www.ecmos.com.tw)
Page 4 of 6
4J20N-Rev.F003
EC95809
3-Pin Microprocessor Reset Monitor
Typical Performance Characteristics
Vout is maintained to <1V if waveform
Vout is maintained to 1.2V if waveform
period is less than 56 sec.
E-CMOS Corp. (www.ecmos.com.tw)
period is longer than 160 sec.
Page 5 of 6
4J20N-Rev.F003
EC95809
3-Pin Microprocessor Reset Monitor
OUTLINE DRAWING SOT-23
C
J
H
B
DIMN
A
B
C
D
E
F
G
H
J
K
L
D
A
E
G
F
K
L
DIMENSIONS
INCHES
MM
MIN MAX MIN MAX
0.110
0.047
0.083
0.035
0.070
0.018
0.015
0.0005
0.034
0.003
-
0.120
0.055
0.104
0.040
0.080
0.024
0.020
0.004
0.040
0.007
0.027
2.80
1.20
2.10
0.89
1.78
0.45
0.37
0.013
0.887
0.085
-
3.04
1.40
2.64
1.03
2.05
0.60
0.51
0.10
1.02
0.18
0.69
OUTLINE DRAWING TO-92
A
DIMN
B
D
A
B
E
F
G
H
J
K
E
G
F
H
K
J
E-CMOS Corp. (www.ecmos.com.tw)
Page 6 of 6
DIMENSIONS
INCHES
MM
MIN MAX MIN MAX
0.175
0.170
0.500
0.016
0.045
0.095
0.080
0.125
0.205
0.210
0.610
0.021
0.055
0.105
0.105
0.165
4.445
4.318
12.70
0.407
1.143
2.413
2.032
3.175
5.207
5.334
15.50
0.533
1.397
2.667
2.667
4.191
4J20N-Rev.F003
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