ACE ACE302X300XXX+

 Technology
ACE302
Low Voltage Detector with Built-in Delay Circuit
Description
ACE302 is a series of high precision voltage detector with ultra low current consumption (500nA typ. at
Vdd=3.0V) and a built-in delay circuit. It can work at very low voltage, which makes it perfect for system
reset.
ACE302 is composed of high precision voltage reference, comparator, delay circuit, output driver and
resistor array. Internally preset detect voltage has a low temperature drift and requires no external
trimming.
Two type of output, CMOS and N-channel open-drain are available.
ACE302 is available in SOT-23-3 which is Pb free.
Features
•
•
•
•
•
•
High-precision detection Voltage: ±2%
Detection Voltage:0.9V~6.0V (in 0.1V steps)
Built-in Power on Reset Delay Time circuit::Refer to Selection Guide
Operating Voltage range:0.7V~10V
Ultra-low current consumption:500nA typ. (at VDD=3.0V)
Two Output forms :CMOS and N-channel open-drain (Active Low)
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
Symbol
Max
Unit
Input Voltage
-0.3~12
V
Output Voltage
-0.3~12
V
Output Current
70
mA
Power Dissipation
150
mW
Ambient temperature
-40~70
℃
Storage temperature
-40~125
℃
VER 1.2
1 Technology
ACE302
Low Voltage Detector with Built-in Delay Circuit
Packaging Type
SOT-23-3
3
1
Pin No Symbol
Description
1
VSS
GND Pin
2
VOUT
Voltage detection output pin
3
VDD
Voltage input Pin
2
Ordering information
Selection Guide
ACE302 X XXX X XX
+
H
Halogen - free
Pb - free
Package type
BM: SOT-23-3
Delay time: A:50ms / B:100ms / C:150ms / D:200ms /
E:250ms / F:300ms / G:400ms
Detector Voltage:
090…0.9V / 100…1.0V / 263…2.63V / 300…3.0V /
465…4.65V…..600…6.0V (In 0.1V step) Output type:
N: Nch
C: CMOS
Recommended Work Conditions
Item
Input Voltage (Vin)
Ambient Temperature (TJ)
Min
0.7
-40
Typ.
25
Max
10
70
Unit
V
℃
VER 1.2
2
Technology
ACE302
Low Voltage Detector with Built-in Delay Circuit
Block diagram
N channel open-drain
CMOS output
Electrical Characteristics
ACE302N090DBM+ (0.9V)
(Topt=25℃, Unless otherwise specified)
Symbol
Parameter
-VDET
ISS
VDDH
VDDL
Detector Threshold
Current consumption
Maximum operating voltage
Minimum Operating voltage
IOUT
Output current
ACE302N270DBM+ (2.7V)
VDD=2.9V
Nch
VDS=0.05V,VDD=0.7V
VDS=0.50V,VDD=0.8V
Pch
VDS=-2.1V,VDD=4.50V
Reference data
Unit
Min. Typ. Max.
0.882 0.9 0.918
V
1
1.5
uA
10
V
0.5
V
0.01
0.05
0.05
0.50
mA
1.0
2.0
mA
(Topt=25℃, Unless otherwise specified)
Symbol
Parameter
-VDET
ISS
VDDH
VDDL
Detector Threshold
Current consumption
Maximum operating voltage
Minimum Operating voltage
IOUT
Conditions
Output current
Conditions
VDD=4.7V
Reference data
Unit
Min. Typ. Max.
2.646 2.7 2.754
V
0.5
1
uA
10
V
0.5
V
Nch
VDS=0.05V,VDD=0.7V
0.01
0.05
mA
Pch
VDS=-2.1V,VDD=4.50V
1.0
2.0
mA
VER 1.2
3
Technology
ACE302N300DBM+ (3.0V)
Low Voltage Detector with Built-in Delay Circuit
(Topt=25℃, Unless otherwise specified)
Symbol
Parameter
-VDET
ISS
VDDH
VDDL
Detector Threshold
Current consumption
Maximum operating voltage
Minimum Operating voltage
IOUT
Output current
ACE302N340DBM+ (3.4V)
Parameter
-VDET
ISS
VDDH
VDDL
Detector Threshold
Current consumption
Maximum operating voltage
Minimum Operating voltage
Output current
ACE302N440DBM+ (4.4V)
VDD=5.0V
Reference data
Unit
Min. Typ. Max.
2.94 3.0 3.06
V
0.5
1
uA
10
V
0.5
V
Nch
VDS=0.05V,VDD=0.7V
0.01
0.05
mA
Pch
VDS=-2.1V,VDD=4.50V
1.0
2.0
mA
Conditions
VDD=5.0V
Reference data
Unit
Min. Typ. Max.
3.332 3.4 3.468
V
0.5
1
uA
10
V
0.5
V
Nch
VDS=0.05V,VDD=0.7V
0.01
0.05
mA
Pch
VDS=-2.1V,VDD=4.50V
1.0
2.0
mA
(Topt=25℃, Unless otherwise specified)
Symbol
Parameter
-VDET
ISS
VDDH
VDDL
Detector Threshold
Current consumption
Maximum operating voltage
Minimum Operating voltage
IOUT
Conditions
(Topt=25℃, Unless otherwise specified)
Symbol
IOUT
ACE302
Output current
Conditions
VDD=6.4V
Reference data
Unit
Min. Typ. Max.
4.312 4.4 4.488
V
0.5
1
uA
10
V
0.5
V
Nch
VDS=0.05V,VDD=0.7V
0.01
0.05
mA
Pch
VDS=-2.1V,VDD=8.0V
1.5
3.0
mA
VER 1.2
4
Technology
ACE302
Low Voltage Detector with Built-in Delay Circuit
Electrical Characteristics By Detector Threshold
Detector Threshold
Supply Current1
Supply Current2
-Vdet[V]
Iss1[uA]
Iss2[uA]
Part Number
Min
Typ
Max
Condition
Typ
Max
Condition
ACE302X090XXX+
0.882
0.900
0.918
0.5
1.0
ACE302X100XXX+
0.980
1.000
1.020
ACE302X110XXX+
1.078
1.100
1.122
Vdd=
(-Vdet)
+0.1V
Vdd=
(-Vdet)
+2V
ACE302X120XXX+
1.176
1.200
1.224
ACE302X130XXX+
1.274
1.300
1.326
ACE302X140XXX+
1.372
1.400
1.428
ACE302X150XXX+
1.470
1.500
1.530
ACE302X160XXX+
1.568
1.600
1.632
ACE302X170XXX+
1.666
1.700
1.734
ACE302X180XXX+
1.764
1.800
1.836
ACE302X190XXX+
1.862
1.900
1.938
ACE302X200XXX+
1.960
2.000
2.040
ACE302X210XXX+
2.058
2.100
2.142
ACE302X220XXX+
2.156
2.200
2.244
ACE302X230XXX+
2.254
2.300
2.346
ACE302X240XXX+
2.352
2.400
2.448
ACE302X250XXX+
2.450
2.500
2.550
ACE302X260XXX+
2.548
2.600
2.652
ACE302X270XXX+
2.646
2.700
2.754
ACE302X280XXX+
2.744
2.800
2.856
ACE302X290XXX+
2.842
2.900
2.958
ACE302X300XXX+
2.940
3.000
3.060
ACE302X310XXX+
3.038
3.100
3.162
ACE302X320XXX+
3.136
3.200
3.264
ACE302X330XXX+
3.234
3.300
3.366
ACE302X340XXX+
3.332
3.400
3.468
ACE302X350XXX+
3.430
3.500
3.570
ACE302X360XXX+
3.528
3.600
3.672
ACE302X370XXX+
3.626
3.700
3.774
ACE302X380XXX+
3.724
3.800
3.876
ACE302X390XXX+
3.822
3.900
3.978
ACE302X400XXX+
3.920
4.000
4.080
ACE302X410XXX+
4.018
4.100
4.182
ACE302X420XXX+
4.116
4.200
4.284
Typ
Max
1.0
1.5
0.5
1.0
VER 1.2
5
Technology
Low Voltage Detector with Built-in Delay Circuit
ACE302X430XXX+
4.214
4.300
4.386
ACE302X440XXX+
4.312
4.400
4.488
ACE302X450XXX+
4.410
4.500
4.590
ACE302X460XXX+
4.508
4.600
4.692
ACE302X470XXX+
4.606
4.700
4.794
ACE302X480XXX+
4.704
4.800
4.896
ACE302X490XXX+
4.802
4.900
4.998
ACE302X500XXX+
4.900
5.000
5.100
ACE302X510XXX+
4.998
5.100
5.202
ACE302X520XXX+
5.096
5.200
5.304
ACE302X530XXX+
5.194
5.300
5.406
ACE302X540XXX+
5.292
5.400
5.508
ACE302X550XXX+
5.390
5.500
5.610
ACE302X560XXX+
5.488
5.600
5.712
ACE302X570XXX+
5.586
5.700
5.814
ACE302X580XXX+
5.684
5.800
5.916
ACE302X590XXX+
5.782
5.900
6.018
ACE302X600XXX+
5.880
6.000
6.120
Output Current1
Output Current2
Minimum
Operating
Voltage
Iout1[mA]
Iout2[mA]
VDDL[V]
Condition
Min. Typ.
ACE302
Condition
Min. Typ. Typ.
VDD=0.85V 0.1 0.5
NCH,
0.01 0.05 NCH,VDS=0.5V VDD=1.0V 0.2 1.0
VDS=0.05V,VDD=0.7V
VDD=1.5V 1.0 2.0
0.5
Detector Threshold
Temperature Coefficient
-VDET/ Tppm/°C
Max.
Condition
Typ.
0.7
-40℃ Topt 85℃
100
Electrical Characteristics By Output Delay Time
Part Number
Test Condition
ACE302XXXXAXX+
ACE302XXXXBXX+ ACE302XXXXCXX+ ACE302XXXXDXX+ ACE302XXXXEXX+ ACE302XXXXFXX+ ACE302XXXXGXX+ VDD=1.0V to Vdet+1.0V
Output Delay Time
Min
Typ
Max
45
50
55
90
100
110
135
150
165
180
200
220
225
250
275
270
300
330
360
400
440
Unit
ms
VER 1.2
6
Technology
ACE302
Low Voltage Detector with Built-in Delay Circuit
Function description
High precision low temperature co-efficiency reference voltage is applied to the negative input of a
comparator. Input voltage, divided by resistor array of Ra and Rb, is applied to the positive input of the
comparator. Output of the comparator passes a delay circuit and a series of buffer to drive the output
CMOS pair.
VDET =VREF*(1+Ra/Rb)
No
I
II
III
IV
V
Operation status
VDD>Vdet
VDD drops below Vdet
VDD drops further below
VDDL
VDD rises above VDDL
VDD rises above Vdet
Output status
Output voltage is equal to the supply voltage
Output voltage equals to GND level
Output voltage is undefined
Output voltage equals to GND level
Output voltage equals to supply voltage after Tdelay
VER 1.2
7
Technology
ACE302
Low Voltage Detector with Built-in Delay Circuit
Typical Circuits
(1) Supply current test circuit
ACE302
(3) NCHply current test circuit
AC302
(2) Detector threshold test circuit
ACE302
(2) Detector threshold test circuit
ACE302
Typical Performance Characteristics
1. Supply current VS. Input Voltage
Detector threshold=0.9V
Input voltage (V)
Detector threshold=2.7V
Input Voltage (V)
VER 1.2
8
Technology
Detector threshold=3.0V
Input voltage (V)
ACE302
Low Voltage Detector with Built-in Delay Circuit
Detector threshold=4.4V
Input Voltage (V)
2. Detector Threshold VS. Temperature
Detector threshold=0.9V
Temperature (℃)
Detector threshold=3.0V
Detector threshold=2.7V
Temperature (℃)
Detector threshold=4.4V
Temperature (℃)
Temperature (℃)
VER 1.2
9
Technology
ACE302
Low Voltage Detector with Built-in Delay Circuit
3. Nch Driver Output Current VS. VDS
ACE302X090XXX+
VDS (V)
ACE302X300XXX+
VDS (V)
ACE302X270XXX+
VDS (V)
ACE302X440XXX+
VDS (V)
4. Nch Driver Output Current VS. Input Voltage
Detector threshold=2.7V
Input Voltage Vin (V)
Detector threshold=3.0V
Input Voltage Vin (V)
VER 1.2
10
Technology
ACE302
Low Voltage Detector with Built-in Delay Circuit
5. PCH Driver Output Current VS. Input Current
Detector threshold=0.9V
Input Voltage Vin (V)
Detector threshold=2.7V
Input Voltage Vin (V)
Detector threshold=4.4V
Input Voltage Vin (V)
Typical Applications
ACE302
Note:
1. R0 is unnecessary for CMOS output products.
2. The value of R0 need to be selected in different application, Typical value is 470kΩ
VER 1.2
11
Technology
ACE302
Low Voltage Detector with Built-in Delay Circuit
Packing Information
SOT-23-3
VER 1.2
12
Technology
ACE302
Low Voltage Detector with Built-in Delay Circuit
Notes
ACE does not assume any responsibility for use as critical components in life support devices or systems
without the express written approval of the president and general counsel of ACE Electronics Co., LTD.
As sued herein:
1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant
into the body, or (b) support or sustain life, and shoes failure to perform when properly used in
accordance with instructions for use provided in the labeling, can be reasonably expected to result in
a significant injury to the user.
2. A critical component is any component of a life support device or system whose failure to perform can
be reasonably expected to cause the failure of the life support device or system, or to affect its safety
or effectiveness.
ACE Technology Co., LTD.
http://www.ace-ele.com/
VER 1.2
13