UC19431
UC29431
UC39431
UC39431B
CONNECTION DIAGRAM
ABSOLUTE MAXIMUM RATINGS
Supply Voltage: V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36V
DIL-8, SOIC-8 (Top View)
N or J, D Package
Regulated Output: V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36V
Internal Resistors: R1, R2, R3. . . . . . . . . . . . . . . . . . . . . . . 13V
E/A Input: SENSE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6V
E/A Compensation: COMP . . . . . . . . . . . . . . . . . . . . . . . . . . 6V
Output Sink Current: I. . . . . . . . . . . . . . . . . . . . . . . . . . . 140mA
Power Dissipation at TA ≤25°C (DIL-8). . . . . . . . . . . . . . . . . 1W
Derate 8mW/°C for TA > 25°C
Storage Temperature Range . . . . . . . . . . . . . –65°C to +150°C
Junction Temperature. . . . . . . . . . . . . . . . . . . –55°C to +150°C
Lead Temperature (Soldering, 10 sec.) . . . . . . . . . . . . . +300°C
Currents are positive into, negative out of the specified termi-
nal. Consult Packaging Section of Databook for thermal limita-
tions and considerations of packages.
ELECTRICAL CHARACTERISTICS: Unless otherwise stated, these specifications apply for TA = –55°C to +125°C and
COLL Output = 2.4V to 36.0V for the UC19431, TA = –25°C to +85°C and COLL Output = 2.3V to 36.0V for the UC29431, and TA
= 0°C to +70°C and COLL Output = 2.3V to 36.0V for the UC39431/B, VCC = 15V, ICOLL = 10mA, TA = TJ.
TEST CONDITIONS
PARAMETER
MIN
1.295
1.29
TYP
1.3
1.3
1.3
1.3
10
MAX UNITS
Reference Voltage Tolerance
TA = 25°C
19431*
39431B
19431*
39431B
19431*
1.305
1.31
1.309
1.314
38
V
V
Reference Temperature Tolerance
VCOLL = 5.0
1.291
1.286
V
V
Reference Line Regulation
Reference Load Regulation
VCC = 2.2V to 36.0V, VCOLL = 5V
mV
39431B
19431*
10
10
57
38
mV
mV
I
COLL = 10mA to 50mA, VCOLL = 5V
39431B
10
57
mV
µA
mA
mA
V
Sense Input Current
–0.5
0.7
–0.2
0.50
130
1.1
Minimum Operating Current
Collector Current Limit
Collector Saturation
VCC = 36.0V, VCOLL = 5V
VCOLL = VCC = 36.0V, Ref = 1.35V
ICOLL = 20mA
0.80
145
1.5
Transconductance (gm)
VCC = 2.4V to 36.0V,
VCOLL = 3V, ICOLL = 20mA
19431*
39431B
19431*
39431B
19431*
39431B
–170 –140 –110
–180 –140 –100
mS
mS
V
5.1V Reference
Internal Divider
Internal Divider
5.05
5
5.1
5.1
5.15
5.2
V
12.24V Reference
12
12
60
3.0
12.24 12.5
V
12.24 12.5
V
Error Amplifier AVOL
90
5
dB
MHz
MHz
Error Amplifier GBW
(Note 1)
Transconductance Amplifier GBW
* Also applies to the UC29431 and UC39431
3
Note: The internal divider can be configured to give six unique references. These references are 2.82V, 3.12V, 5.1V, 7.8V,
10.42V, 12.24V.
Note 1: Guaranteed by design. Not 100% tested in production.
2
TI [ TEXAS INSTRUMENTS ]
