CAT808 Voltage Detector Datasheet

CAT808 Datasheet, PDF, Equivalent


Part Number

CAT808

Description

Low-Power Precision Voltage Detector

Manufacture

ON Semiconductor

Total Page 6 Pages
Datasheet
Download CAT808 Datasheet


CAT808
CAT808
Low-Power Precision
Voltage Detector
Description
The CAT808 is a highprecision voltage detector designed for
monitoring single cell and multicell batteries. Voltage detection
thresholds between 2.0 V and 3.5 V are provided with 0.1 V resolution
and ±3.0% accuracy.
The CAT808 opendrain output is active low until the VDD voltage
exceeds the detection threshold. A low hysteresis is built into the
device to minimize output “chatter”, while VDD passes through the
detection threshold, and the output transitions high.
After the CAT808 asserts the output high condition, it continues to
monitor VDD until it drops below the detection threshold, when the
output goes low until VDD once again exceeds the detection threshold.
Features
Ultra Low Current Consumption 2.4 mA
Accurate Voltage Detection Threshold
Fine Voltage Detection Threshold Resolution
Open Drain Output (Active Low)
Industrial Temperature Range 40°C to +85°C
5pin TSOT23
These Devices are PbFree, Halogen Free/BFR Free and are RoHS
Compliant
Applications
BatteryPowered Systems
Power Supply Monitoring
Handheld and Portable Equipment
Processor Supervisor Reset
Battery
Voltage
VDD
CAT808
OUT
GND
IN
DCDC
10 kW CONVERTER
SHDN OUT
GND
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5
1
TSOT5
TD SUFFIX
CASE 419AE
MARKING DIAGRAM
TLYM
TL = Specific Device Code
Y = Production Year
M = Production Month
PIN CONNECTIONS
1
OUT
NC
VDD
GND
NC
(Top View)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 6 of this data sheet.
Note: The value of the pullup resistor is not critical
Figure 1. Typical Application
© Semiconductor Components Industries, LLC, 2011
September, 2011 Rev. 6
1
Publication Order Number:
CAT808/D

CAT808
CAT808
Table 1. ABSOLUTE MAXIMUM RATINGS
Parameters
Ratings
Units
Temperature under Bias
55 to +125
°C
Storage Temperature
65 to +150
°C
Voltage on any Pin with Respect to GND (Notes 1, 2)
2.0 to VDD + 2.0
V
VDD with Respect to GND
2.0 to 7.0
V
Lead Soldering temperature (10 seconds)
+300
°C
Power Dissipation
250 mW
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
1. The Minimum DC input voltage is 0.5 V. During transitions, inputs may undershoot to 2.0 V for periods of less than 20 ns. Maximum DC
voltage on output pins is VCC +0.5 V, which may overshoot to VCC +2.0 V for periods of less than 20 ns.
2. Latchup protection is provided for stresses up to 100 mA on all pins from 1 V to VCC +1 V.
Table 2. RECOMMENDED OPERATING CONDITIONS
Parameters
Ratings
Units
VDD
Operating Temperature Range
+1.2 to +6.0
40 to +85
V
°C
Table 3. DC ELECTRICAL CHARACTERISTICS (TA = 40°C to +85°C, VDD = 1.2 V to 6.0 V)
Symbol
Parameter
Conditions
Min
Typ
VDET
Detection Voltage
CAT808Nxxx25
CAT808Nxxx27
2.43 2.5
2.62 2.7
CAT808Nxxx32
3.12 3.2
CAT808Nxxx35
3.42 3.5
IDD Current Consumption
VDD = 4.0 V
2.4
VDD = 5.0 V
3.5
VDD = 6.0 V
5
IOUT
Output Sink Current
VDS = 0.5 V VDD = 1.2 V 0.6 1.4
VDD = 2.4 V
2.9
5
ILEAK
Output Leakage Current
VDS = 5.0 V, VDD = 5.0 V
−−
TPHL/LH
Response Time
−−
DVDET
DTA VDET(typ)
Detection Voltage Temperature
Coefficient (Note 3)
±10
3. The temperature change ratio in the detection voltage [ppm/°C] is calculated by using the following equation:
DVDET
DTA @ VDET(typ)
1, 000, 000[ppmńoC]
Max
2.57
2.78
3.28
3.58
5
7
10
1
60
±100
Units
V
mA
mA
mA
ms
ppm/°C
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2


Features CAT808 Low-Power Precision Voltage Dete ctor Description The CAT808 is a high precision voltage detector designed fo r monitoring single cell and multi−ce ll batteries. Voltage detection thresho lds between 2.0 V and 3.5 V are provide d with 0.1 V resolution and ±3.0% accu racy. The CAT808 open−drain output is active low until the VDD voltage excee ds the detection threshold. A low hyste resis is built into the device to minim ize output “chatter”, while VDD pas ses through the detection threshold, an d the output transitions high. After th e CAT808 asserts the output high condit ion, it continues to monitor VDD until it drops below the detection threshold, when the output goes low until VDD onc e again exceeds the detection threshold . Features • Ultra Low Current Consum ption 2.4 mA • Accurate Voltage Detec tion Threshold • Fine Voltage Detecti on Threshold Resolution • Open Drain Output (Active Low) • Industrial Temp erature Range −40°C to +85°C • 5−pin TSOT−23 • These Devices are Pb−Free, Halogen Fr.
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