AME, Inc.
AME8550
Voltage Detector
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General Description
The AME8550 series are highly precise, low power con-
sumption voltage detectors, manufactured using CMOS
and fuse trimming technologies. Detect voltage is ex-
tremely accurate with minimal temperature drift.
Both CMOS and N channel open drain output configu-
rations are available.
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Functional Block Diagram
(1) CMOS Output without delay
V
DD
V
OUT
Vref
V
SS
BG
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Features
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Highly accurate: + 2%
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Low power consumption: TYP 0.8µA
(V
DD
=1.5V)
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Detect voltage range: 1.6V to 6.0V in 0.1V
increments
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Operating voltage range: 1.2V to 6.5V
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Detect voltage temperature characteristics:
TYP ±100ppm/
o
C
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Output configuration: N-channel open drain or
CMOS
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Ultra small package :
SOT-23 (150mW)
SOT-25 (150mW)
SOT-89 (500mW)
SC-70 (100mW)
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Add an external capacitor to perform an
µP
reset.
(2) Nch Open Drain Output without delay
V
DD
V
OUT
V
SS
Vref
BG
(3) CMOS Output with delay
V
DD
V
OUT
V
DD
V
SS
I
V
TH
=V
REF
Vref
BG
CD
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Applications
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Microprocessor reset circuitry
Memory battery back-up circuits
Power-on reset circuits
Power failure detection
System battery life and charge voltage
monitors
(4) Nch Open Drain Output with delay
V
OUT
V
DD
V
SS
V
DD
I
V
TH
=V
REF
CD
Vref
BG
1
AME, Inc.
AME8550
Voltage Detector
n
Ordering Information
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Without Delay Time
AME8550 x x x x x xxx x
Special Feature
Detect Voltage
Output Options
Number of Pins
Package Type
Operating Temperature
Pin Out Configuration
Operating
Pin
Temperature
Configuration
Range
A
(SOT-23)
Package
Type
Number
of
Pins
Output Options
Detect
Voltage
Special
Feature
1. VOUT E: -40
O
C to 85
O
C E: SOT-2X T: 3
2. VSS
F: SOT-89 V: 5
3. VDD
1. VOUT
2. VDD
3. VSS
1. VSS
2. VOUT
3. VDD
1.
2.
3.
4.
5.
VOUT
VDD
VSS
NC
NC
A
(SOT-89)
A
(SC70-3)
C
(SOT-25)
A: CMOS output without delay 190: V=1.9V L: Low profile
B: Open-Drain output without 200: V=2.0V Y: Lead free
& Low profile
delay
220: V=2.2V
230: V=2.3V Z: Lead free
240: V=2.4V
250: V=2.5V
263: V=2.63V
270: V=2.7V
280: V=2.8V
360: V=3.6V
370: V=3.7V
420: V=4.2V
440: V=4.4V
460: V=4.6V
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PCB Design
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