Product Brief
VOLTAGE DETECTOR
HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR
Description
Pin Configuration
The AZ70XX series ICs are under voltage detectors with
SOT-23-3
a built in voltage threshold and low power consumption.
The AZ70XX are specifically designed to accurately
V
IN
monitor power supplies.
The AZ70XX use a precision on-chip voltage reference
3
and a comparator to measure the input operating voltage.
These ICs can accurately reset the system after detecting
2
1
voltage at the time of switching power on and instanta-
neous power off in various CPU systems and other logic
systems. The detect voltage thresholds are 2.3V/2.5V/
V
OUT
GND
2.7V/2.9V/3.1V/3.3V/4.2V/4.5V for AZ7023/25/27/29/
31/33/42/45 respectively. Built in hysteresis helps to pre-
vent erratic operation in the presence of noise.
AZ70XX
AP2121
Parametric Table
Supply Voltage (Max) (V)
SOT-23-5
Supply Current (Max)(µA)
Detect Voltage (Typ)
V
IN
1
20
500
2.3, 2.5, 2.7,
2.9, 3.1, 3.3,
4.2, 4.5
±0.01
15
-40
85
5
V
OUT
Detect Voltage Temperature
GND
2
o
C
)
Coefficient (%/
3
4
NC
CE
"H" Transmission Delay Time (µs)
Operating Temperature (Min) (
o
C
)
Operating Temperature (Max) (
o
C
)
Ordering Information Example
Features
Package
Temperature Range
Condition
Benefits
Number
Part
·
·
AP2121N-1.5TRE1
Marking ID
EF1
Packing Type
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
·
·
·
·
·
Low Current Consumption:
I
CCL
=300
µA
Typical
I
CCH
=30
µA
Typical
Low Minimum Operating Voltage for Output Reset-
SOT-23-3
-40 to 85
o
C
ting: 0.8V Typical
Built in Hysteresis Voltage: 50mV Typical
Open Collector Output
Extended Temperature Range: -40 to 85
o
C
Easier to Use
AP2121N-1.8TRE1
EF3
Very Competitive Price
AP2121N-2.5TRE1
AP2121N-2.8TRE1
EF4
EF5
Additional Available Materials
& Reel
AP2121N-3.0TRE1
EF6
Tape
AP2121N-3.2TRE1
EF7
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Applications
SOT-23-5
-40 to 85
o
C
·
Samples
AP2121N-3.3TRE1
EF8
·
Data Sheet
Active High (Pull-down resistor built-in) AP2121AK-1.5TRE1 E1Z
·
Reliability Report
Active High (Pull-down resistor built-in) AP2121AK-1.8TRE1 E1U
·
ESD Report
Active High (Pull-down resistor built-in)
Active High (Pull-down resistor built-in)
AP2121AK-2.5TRE1
AP2121AK-2.8TRE1
E1V
E1W
E1X
E3Z
E1Y
·
Low Battery Voltage Detector
Active High (Pull-down resistor built-in) AP2121AK-3.0TRE1
·
Power Fail Indicator
·
Processor Reset Generator
Active High (Pull-down resistor built-in) AP2121AK-3.2TRE1
Active High (Pull-down resistor built-in) AP2121AK-3.3TRE1
·
Battery Backup Control
·
Home Electric Appliances
Detailed information please refer to the relevant datasheet.
Pin Configuration
Sales Office:
TO-92
USA
30920 Huntwood Ave.Hayward, CA 94544,
USA
Tel : +1-510-324-2988
3
OUT
Fax : +1-510-324-2788
Taiwan
4F, 298-1 Rui Guang Road, Nei-Hu District, Taipei,
1
V
CC
Taiwan
Tel : 886-2-2656-2808
Fax : 886-2-2656-2806
2
TO-92 Ammo Packing
Shanghai
SOT-89-3
3
2
1
8F, B Zone, 900 Yi Shan Road, Shanghai 200233,
China
Tel
OUT
: 86-21-6495 9539
Fax : 86-21-6485 9673
GND
GND
Shenzhen
V
CC
E, 5F, Noble Center, No.1006, 3rd Fuzhong Road, Futian
Room
District, Shenzhen 518026, China
Tel : 86-755-8826 7951
V
CC
GND OUT
Fax : 86-755-8826 7865
1
2
3
Jul. 2007
Jun.2007
BCD Semiconductor Manufacturing Limited
BCDSEMI [ BCD SEMICONDUCTOR MANUFACTURING LIMITED ]
