LRC LR8808-4.4 Micropocessor reset circuits junction temperature range for operation Datasheet

LESHAN RADIO COMPANY, LTD.
LR8808 Micropocessor Reset Circuits
General Description
The LR8808 series are ultar-low current voltage detectors,which can be used to monitor the power supplies in microprocessor
and digital systems. There are two output forms,and Nch open-drain and CMOS output are available.
The LR8808 series are available SOT23(-3 -5) package.Performance is specified for -40℃to +85℃ temperature range.
Features
★0.95V to 8V input range
★Reset Threshold:1.5V~6.0V in 0.1V increments
★High-precision detection voltage: ±2.0 %
★Ultra-low current consumption: 1.0μ[email protected](typ)
★SOT23-3 SOT23-5 package
★NMOS Open Drain and CMOS Output (Active Low)
★40℃ to +85℃ junction temperature range for operation
Applications
★Battery-Powered Systems
★Power Supply Monitoring
★Handheld and Portable Equipment
★Processor Supervisor Reset
Typical Application Circuit
Block Diagram(*1: parasitic diode)
1/6
LESHAN RADIO COMPANY, LTD.
LR8808
Pin Descriptions
SOT23
SOT23-5
Pin No
A
M
R
1
2
3
4
5
Gnd
Vout
Vcc
-
-
Vout
Gnd
Vcc
-
-
Vout
Vcc
Gnd
No connection
No connection
Connection Diagrams
SOT23 package
SOT23-5 package
Ordering Information
The package type,the detector threshold,the output type and the taping type of LR8808 series can be designated at user’s request
as following:
CODE
SYMBOL
DESCRIPTION
a
1.5~6.0
Detect Voltage
b
C
CMOS Output
N
Nch open drain Output
A/M
Package:SOT23
R
Package:SOT23-5
c
Absolute Maximum Ratings
VIN
VOUT
Junction Temperature
Storage Temperature
Power Dissipation
Gnd to Gnd +10V
Gnd to Gnd +10V
−40°C to +85°C
−40°C to +125°C
SOT23
250mW
Operating Ratings
VIN
VOUT
Junction Temperature
Junction-to-Ambient Thermal
Resistance (θJA)
0.95V to 8V
0 to VIN
−40°C to +85°C
SOT23
301°C /W
SOT23-5
220°C /W
2/6
LESHAN RADIO COMPANY, LTD.
LR8808
Electrical Characteristics
Unless otherwise specified,Typical values and limits appearing in standard typeface are for Ta = 25°C.
Symbol
−VDET
(Figure1)
VHYS
(Figure1)
Iss
Vcc
IOUT
ILEAK
TPLH
Item
Detection
voltage
Hysteresis
Width
Current
Consumption
Operating
voltage
Output
Current
Leakage
current
Temperature
coefficient
Conditions
Min
−VDET(S)
×0.98
-
Type
−VDET(S)
Max
Unit
−VDET(S)
×1.02
V
−VDET(S) −VDET(S) −VDET(S)
-
LR8808-2.0~2.6
C/N
LR8808-2.6~3.9
C/N
LR8808-3.9~6.0
C/N
VCC = −VDET+0.5V
-
LR8808-2.0~2.6
NMOS:
C/N
VOUT=0.5V
LR8808-2.6~3.9
Vcc=−VDET−0.5
C/N
LR8808-3.9~6.0
C/N
LR8808-2.0~2.6
PMOS:
C/N
Vcc−VOUT=0.5V
LR8808-2.6~3.9
Vcc=−VDET+0.5
C/N
LR8808-3.9~6.0
C/N
Only for NMOS open-drain output products,
VCC =8.0 V, VOUT =8.0 V
Ta=−40°C to +85°C
Delay time
×0.02
×0.05
×0.08
V
-
1.0
2.0
µA
-
1.2
2.5
µA
-
1.5
3.0
µA
0.95
-
8
V
3.0
13.0
-
mA
3.0
15.0
-
mA
3.0
18.0
-
mA
1.5
4.0
-
mA
1.5
6.0
-
mA
1.5
8.0
-
mA
-
0.1
µA
±120
±360
ppm/
°C
µs
-
200
Figure1
3/6
LESHAN RADIO COMPANY, LTD.
LR8808
Making Information
DN159
LR8808-1.5
DN169
LR8808-1.6
DN179
LR8808-1.7
DN189
LR8808-1.8
DN199
LR8808-1.9
DN209
LR8808-2.0
DN219
LR8808-2.1
DN229
LR8808-2.2
DN239
LR8808-2.3
DN249
LR8808-2.4
DN259
LR8808-2.5
DN269
LR8808-2.6
DN279
LR8808-2.7
DN289
LR8808-2.8
DN299
LR8808-2.9
DN309
LR8808-3.0
DN319
LR8808-3.1
DN329
LR8808-3.2
DN339
LR8808-3.3
DN349
LR8808-3.4
DN359
LR8808-3.5
DN369
LR8808-3.6
DN379
LR8808-3.7
DN389
DN399
DN409
DN419
DN429
DN439
DN449
DN459
DN469
DN479
DN489
DN499
DN509
DN519
DN529
DN539
DN549
DN559
DN569
DN579
DN589
DN599
DN609
LR8808-3.8
LR8808-3.9
LR8808-4.0
LR8808-4.1
LR8808-4.2
LR8808-4.3
LR8808-4.4
LR8808-4.5
LR8808-4.6
LR8808-4.7
LR8808-4.8
LR8808-4.9
LR8808-5.0
LR8808-5.1
LR8808-5.2
LR8808-5.3
LR8808-5.4
LR8808-5.5
LR8808-5.6
LR8808-5.7
LR8808-5.8
LR8808-5.9
LR8808-6.0
4/6
LESHAN RADIO COMPANY, LTD.
LR8808
Physical Dimensions
5/6
LESHAN RADIO COMPANY, LTD.
LR8808
6/6
Similar pages