AME
AME385-1.2
n
General Description
The AME385-1.2 is a micropower 2-terminal band-gap
voltage regulator diode. It operates over a 30µA to 20mA
current range. Each circuit is trimmed at wafer sort to
provide a ± 0.5% initial tolerance. The design of the
AME385-1.2 allows for a large range of load capacitances
and operating currents. The low start-up current makes
these parts ideal for battery applications.
AME offers this part in a TO-92 and SOP-8 packages
as well as the space saving SOT-23.
Shunt Bandgap Voltage Reference
n
Functional Block Diagram
VR
Bandgap
Cell
Feedback
Current
Shunt
n
Features
l
Small Packages: SOT-23, TO-92, SOP-8
l
Tolerates Capacitive Loads
l
Fixed Reverse Breakdown Voltage of 1.235V
l
Tight Voltage Tolerance -------
±0.5%
l
Wide Operating Current ------- 30µA to 20mA
l
Wide Temperature Range ----- -40
o
C to +85
o
C
l
Low Temperature Coefficient --100ppm/ C
(max)
o
GND
n
Typical Application
VS
VS
RS
VR
l
Excellent Transient Response
l
All AME's Lead Free Products Meet RoHS
Standards.
n
Applications
l
Portable Electronics
l
Power Supplies
l
Computer Peripherals
l
Data Acquisition Systems
l
Battery chargers
l
Consumer Electronics
VS - VR
RS =
I
0.1µ F
Value optional
VR = 1.235V
Rev.G.03
1
AME
AME385-1.2
n
Pin Configuration
SOP-8
Top View
8
7
6
5
Shunt Bandgap Voltage Reference
SOT-23
Top View
AME 385-1.2
1. NC
2. NC
3. NC
4.
-
1
2
3
AME 385-1.2
1.
2.
+
-
AME385
AME385
3. NC*
5. NC
6. NC
1
2
3
4
7. NC
8. +
* Die Attach:
Conductive Epoxy
* Die Attach:
Non-Conductive Epoxy
TO-92-3
Top View
AME 385-1.2
TO-92-2
Top View
AME 385-1.2
AME385
1. NC*
2.
3.
+
-
AME385
1. +
2.
-
* Die Attach:
Non-Conductive Epoxy
* Die Attach:
Non-Conductive Epoxy
1
2
3
1
2
* The NC pin must float or be connected to - (negative)
2
Rev.G.03
AME
AME385-1.2
n
Ordering Information
AME385 x x x x x - x
Special Feature2
Special Feature1
Number of Pins
Package Type
Operating Ambient Temperature Range
Accuracy
Shunt Bandgap Voltage Reference
Accuracy
Operating Ambient
Temperature Range
Package
Type
Number
of
Pins
A: 8
S: 2
T: 3
Special
Feature1
Special Feature2
(For TO-92 Package Only)
Package Lead Pitch
N/A: Taping
5.08mm
1:
2.54mm
Bulk
A: 0.5%
(SOT-23)
(SOP-8)
(TO-92-2)
(TO-92-3)
E: -40
O
C to +85
O
C A: TO-92
E: SOT-2X
H: SOP
Z: Lead Free
Rev.G.03
3
AME
AME385-1.2
n
Ordering Information (contd.)
Part Number
AME385AEET
AME385AEETZ
Shunt Bandgap Voltage Reference
Marking*
ABXww
ABXww
Accuracy
0.5%
0.5%
Package
SOT-23
SOT-23
Operating Ambient
Temperature Range
- 40
o
C to +85
o
C
- 40
o
C to +85
o
C
4
AME
385
AME385AEAS
0.5%
TO-92-2
- 40
o
C to +85
o
C
AEAS
yyww
AME
385
AME385AEAS-1
0.5%
TO-92-2
- 40
o
C to +85
o
C
AEAS
yyww
AME
385
AME385AEASZ
0.5%
TO-92-2
- 40
o
C to +85
o
C
AEAS
yyww
AME
385
AME385AEASZ-1
0.5%
TO-92-2
- 40
o
C to +85
o
C
AEAS
yyww
AME
385
AME385AEAT
0.5%
TO-92-3
- 40
o
C to +85
o
C
AEAT
yyww
AME
385
AME385AEAT-1
0.5%
TO-92-3
- 40
o
C to +85
o
C
AEAT
yyww
AME
385
AME385AEATZ
0.5%
TO-92-3
- 40
o
C to +85
o
C
AEAT
yyww
AME
385
AME385AEATZ-1
0.5%
TO-92-3
- 40
o
C to +85
o
C
AEAT
yyww
385
AME385AEHA
AEHA
0.5%
SOP-8
- 40
o
C to +85
o
C
yyww
385
AME385AEHAZ
AEHA
0.5%
SOP-8
- 40
o
C to +85
o
C
yyww
Note: ww & yyww represents the date code pls see the Date Code Rule on Package Dimension.
* A line on top of the first letter represents lead free plating such as ABXww.
Please consult AME sales office or authorized Rep./Distributor for the availability of voltage accuracy and package
type.
Rev.G.03
AME
AME385-1.2
n
Absolute Maximum Ratings
Parameter
Supply Current
Shunt Bandgap Voltage Reference
Maximum
50
Unit
mA
Caution: Stress above the listed absolute maximum rating may cause permanent damage to the device
n
Recommended Operating Conditions
Parameter
Ambient Temperature Range
Junction Temperature Range
Storage Temperature Range
Supply Current
Symbol
T
A
T
J
T
STG
Rating
- 40 to +85
- 40 to +125
- 65 to +150
100µA ~ 20mA
Unit
o
C
C
C
o
o
n
Electrical Specifications
Unless otherwise specified, T
A
= 0~70
O
C, I
R
= 100µA
Parameter
Reference Voltage,
±0.5%
Reference Voltage Change With
Current
Reverse Dynamic Impedence
Wideband Noise (rms)
Long term Stability
Reference Voltage Temp. Coeff.
Operation Current
V
REFTC
I
OP
Symbol
V
REF
dV
REF/I
Test Condition
I
REF
= 100µA
I
MIN
< I < 1mA
1mA < I < 20mA
I
R
= 100µA, f=20Hz
I
R
= 100µA, 10 Hz<f<10KHz
I
R
= 100µA, T
A
=25
o
C,
T=1000 Hours
0
o
C < T
A
< 70
o
C
0.030
Min
Typ
Max
Units
V
mV
5
1.5
60
20
100
20
20
Ohm
µV
ppm
ppm/
o
C
mA
1.229 1.235 1.241
1.5
3
RDI
Vn
Rev.G.03
5
嵌入式系统
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