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PDF ACE303 Data sheet ( Hoja de datos )
| Número de pieza | ACE303 | |
| Descripción | High-precision Low Voltage Detector | |
| Fabricantes | ACE Technology | |
| Logotipo |  |
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ACE303
High-precision Low Voltage Detector
Description
ACE303 is a series of high precision voltage detector with ultra low current consumption (500nA typ. at
Vdd=3.0V). It can work at very low voltage, which makes it perfect for system reset.
ACE303 is composed of high precision voltage reference, comparator, output driver and resistor array.
Internally preset detect voltage has a low temperature drift and requires no external trimming.
One type of output, N-channel open-drain is available.
Features
High-precision detection Voltage：±3%
Detection Voltage：0.9V~6.0V (in 0.1V steps)
Precise hysteresis：4% typ.
Operating Voltage range：0.7V~10V
Ultra-low current consumption：500nA typ. (at VDD＝3.0V)
Application
Power monitor for portable equipment such as PDA, DSC, Mobile phone, Notebook, MP3
CPU and Logic Circuit Reset
Battery Checker
Battery Back-up Circuit
Power Failure Detector
Absolute Maximum Ratings
Parameter
Input Voltage
Output Voltage
Maximum Output current
Maximum power dissipation
Ambient temperature
Storage temperature
Max
-0.3~10
-0.3~12
70
250
-40~+85
-40~+150
Unit
V
V
mA
mW
℃
℃
Packaging Type
SOT-23-3
3
12
SOT-23-3(A) SOT-23-3(B) Description
Function
2
1
VOUT
Voltage detection output Pin
1 2 VDD Voltage input Pin
3 3 VSS
GND Pin
VER 1.2 1
1 page  
ACE303
High-precision Low Voltage Detector
ACE303N44XX + (4.4V) (Topt=25℃, Unless otherwise specified.)
Symbol
Parameter
Conditions
-VDET
VHYS
ISS
VDDH
VDDL
IOUT
TPLH
Detector Threshold
Detector Threshold Hysteresis
Current Consumption
Maximum Operating Voltage
Minimum Operating Voltage
Output Current
Output Delay Time
VDD=6.4V
VDS=0.05V, VDD=0.7V
Reference data
Min. Typ. Max.
4.268 4.400 4.532
0.088 0.176 0.264
0.5 2.5
10
0.5
0.01 0.05
20
Unit
V
V
uA
V
V
mA
uS
Function description
High precision low temperature coefficiency reference voltage is applied to the negative input of a
comparator. Input voltage, divided by resistor array of Ra Rb and Rc, is applied to the positive input of the
comparator. Output of the comparator controls a pair of NMOS and PMOS switches, generating the
hysteresis. Output of the comparator passes a series of buffer to drive the output NMOS.
Electrical Characteristics
Detector threshold = 0.9V
Input Voltage (V)
VER 1.2 5
5 Page 
Packing Information
SOT-23-3
ACE303
High-precision Low Voltage Detector
VER 1.2 11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet ACE303.PDF ] | |
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