I
NTEGRATED
C
IRCUITS
D
IVISION
Features
•
Precision reference, error amplifier, and a high
voltage Darlington transistor in a single package
•
1.299V±1% reference @25ºC
(±1.5% @-40ºC to 85ºC)
•
Error amplifier supply voltage range: 1.3V to 12.5V
over temperature
•
Breakdown voltage of Darlington transistor: 350V
Low Voltage Error Amplifier with a
350V Darlington Transistor
Description
The IX9915 integrates an error amplifier with a
precision reference and a 350V Darlington transistor
in a single package. The error amplifier can be
operated from 1.3V to 12.5V over the operational
temperature range. The breakdown voltage of the
Darlington transistor is 350V.
The integrated combination of a 4-terminal 431 type
shunt regulator with a high voltage Darlington
transistor is ideal for use in LED lamp bleeder control
circuits.
IX9915
Applications
•
•
•
•
LED lamps
Low voltage power supply feedback
AC-to-DC off-line power supplies
DC-to-DC converters
Ordering Information
Part
IX9915N
IX9915NTR
Description
8-pin SOIC, Tube (100/Tube)
8-pin SOIC, Tape & Reel (2000/Reel)
IX9915 Block Diagram
C
B OC
V
CC
+
_
E
V
REF
+
_
FB
V
SS
DS-IX9915-R01
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I
NTEGRATED
C
IRCUITS
D
IVISION
IX9915
1. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1
1.2
1.3
1.4
1.5
1.6
Package Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pin Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3
3
3
4
4
6
2. Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1 Regulation Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2 Compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.3 Design Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3. Manufacturing Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.1
3.2
3.3
3.4
3.5
Moisture Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
ESD Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Soldering Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Board Wash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Mechanical Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2
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R01
I
NTEGRATED
C
IRCUITS
D
IVISION
IX9915
1. Specifications
1.1 Package Pinout
FB
OC
B
N/C
1
2
3
4
8
7
6
5
V
SS
V
CC
E
C
1.2 Pin Description
Pin#
1
2
3
4
5
6
7
8
Name
FB
OC
B
N/C
C
E
V
CC
V
SS
Description
Input Voltage
Output Current
Darlington Base
Not Connected
Darlington Collector
Darlington Emitter
Supply Input
Supply Return
1.3 Absolute Maximum Ratings
Parameter
Collector-Emitter Voltage
Emitter-Collector Voltage
Collector Current
Supply Voltage (Referenced to V
SS
)
Output DC Current
Power Dissipation (Shunt Regulator)
Power Dissipation, Darlington Transistor
1
Total Power Dissipation
1
ESD Rating (Human Body Model)
Operating Temperature
Storage Temperature
1
Symbol
V
CEO
V
ECO
I
CE
V
CC
I
OC
P
A
P
D
P
T
-
T
OPR
T
STG
Ratings
350
2
200
15
20
30
250
250
2
-40 to +85
-55 to +130
Unit
V
V
mA
V
mA
mW
mW
mW
kV
°C
°C
Derate linearly 2.83 mW/°C.
Unless otherwise specified, Absolute Maximum electrical ratings are at 25°C.
Absolute Maximum Ratings are stress ratings. Stresses in excess of these ratings can cause permanent damage to
the device. Functional operation of the device at these or any other conditions beyond those indicated in the
operational sections of this data sheet is not implied.
Typical values are characteristic of the device at 25°C, and are the result of engineering evaluations. They are
provided for information purposes only, and are not part of the manufacturing testing requirements.
R01
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I
NTEGRATED
C
IRCUITS
D
IVISION
1.4 Electrical Characteristics
Parameter
Supply voltage
Reference voltage
1
IX9915
Symbol
V
CC
V
REF
Conditions
T
A
=-40°C to +85°C
V
CC
=1.6V, I
OC
=10mA (Fig. 1)
T
A
=25°C
T
A
=-40°C to +85°C
V
CC
=1.6V, I
OC
=10mA, T
A
=-40°C to +85°C (Fig. 1)
1.3V
<
V
CC
<
12.5V, I
OC
=10mA (Fig. 1)
V
CC
=1.6V, I
OC
=10mA (Fig. 1)
V
CC
=1.6V, I
OC
=10mA, (Fig. 1)
T
A
=-40°C to +85°C
V
CC
=1.6V, V
FB
= V
REF,
I
OC
=0mA (Fig. 3)
V
OC
=V
CC
=12.5V, V
FB
=0V (Fig. 2)
V
CC
=1.6V, I
OC
= 0.2mA to 10mA, f=1kHz
I
CE
=100A
V
CE
=200V, R
B
=1M (Fig. 4)
I
CE
=40mA, V
CE
=2V
I
C
=100mA, I
B
=150A
I
CE
=40mA, V
CE
=2V
Min
1.3
1.286
1.280
-
-
0.1
-
-
-
350
-
-
-
2500
Typ
-
1.299
1.299
8
-0.37
0.34
0.4
75
0.001
1
-
-
-
-
-
Max
12.5
1.312
1.318
21
-2.7
0.5
0.6
100
0.1
-
-
100
1.8
1.2
40000
Unit
V
V
mV
mV/V
A
A
A
A
S
V
nA
V
V
-
Input Characteristics @25°C (Unless Otherwise Specified)
Deviation of V
REF
over temperature
2
Ratio of V
REF
variation to V
CC
change
FB input bias current
Deviation of I
IB
over temperature
2
Quiescent bias current
Error amplifier Off-State current
Shunt Transconductance
3
Collector-emitter voltage breakdown
Collector current
Base-emitter On voltage
Collector-emitter saturation voltage
Current gain
V
REF(DEV)
V
REF
/V
CC
I
IB
I
IB(DEV)
I
Q
I
CC(off)
g
m
(I
OC
/V
FB
)
BV
CEO
I
CE
V
BE(ON)
V
CE(SAT)
h
FE
Darlington Characteristics @25°C (Unless Otherwise Specified)
1 Reference voltage measured at Pin FB under the specified conditions.
2 Deviation parameters VREF(DEV) and IIB(DEV) are defined as the difference between the minimum and maximum values obtained over the rated temperature range.
3 With two external resistors, the total shunt transconductance of the circuit is defined as:
g
m
g
= ---------------
m
R
1
-
1 + -----
R
2
1.5 Test Diagrams
Figure 1: V
REF
, I
IB
,
V
REF
/V
CC
, g
M
Test Circuit
I
OC
C
B
OC
I
Q
V
CC
V
CC
I
IB
FB
R
1
E
+
_
V
REF
R
2
V
SS
4
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NTEGRATED
C
IRCUITS
D
IVISION
Figure 2: I
CC(OFF)
Test Circuit
IX9915
C
B
OC
V
CC
V
CC
FB
E
+
_
V
SS
Figure 3: I
Q
Test Circuit
I
OC
C
B
OC
I
Q
V
CC
V
CC
I
IB
FB
R
1
E
+
_
V
FB
R
2
V
SS
Figure 4: I
CE
Test Circuit
R
B
C
B
OC
V
CC
V
CE
+
_
E
FB
+
_
V
SS
R01
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+
_
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+
_
+
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