OMNIREL COM117T Datasheet
COM117T
(COTS) COMMERCIAL OFF-THE-SHELF 1.5 AMP POSITIVE
ADJUSTABLE VOLTAGE REGULAT OR IN T O-257 PACKAGE
Three Terminal, Precision Adjustable
Positive Voltage Regulator In TO-257 Package
FEATURES
• Built In Thermal Overload Protection
• Short Circuit Current Limiting
DESCRIPTION
These three terminal positive regulators are supplied in hermetically sealed packages.
All protective features are designed into the circuit, including thermal shutdown,
current-limiting, and safe-area control. With heat sinking, these devices can deliver up
to 1.5 amps of output current. The unit also features output voltages that can be fixed
from 1.2 volts to 37 volts using external resistors.
ABSOLUTE MAXIMUM RATINGS T
Power Dissipation
TO-257. . . . . . . . . . . . . . .. . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. 20 W
Input - Output Voltage Dif ferential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
V Operating Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . - 55°C to + 150°C
Storage Te mperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 65°C to +
150°C
Lead Temperature (Soldering 10 seconds) . . . ... . . . . . . . . . . . . . . . . . . . . . . . . . . .
300°C Thermal Resistance, Junction to Case:. . . . . . . .. . . . . . . . . . . . . . . . . . . . . . .
. . . . .4.2°C/W
Maximum Output Current: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
.1.5 A
Recommended Operating Conditions:
Output Vo ltage Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.2 to 37 VDC
Ambient Operating Temperature Range (TA). . . . . . . . . . . .. . . - 55°C to + 125°C
Input Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.25 to 41.25 VDC
@ 25°C
c
3.3
3.3 - 1
205 Crawford Street, Leominster, MA 01453 USA (978) 534-5776 FAX (978) 537-4246
COM117T
.430
.410
.200
.190
.038 MAX.
.005
.120 TYP.
.537
.527
.665
.645
.420
.410
.150
.140
.750
.500
.100 TYP.
.035
.025
.045
.035
ELECTRICAL CHARACTERISTICS -55°C TA 125°C, IL= 8mA (unless otherwise specified)
Parameter Symbol Test Conditions Min. Max. Unit
Reference Voltage V
Line Regulation R
REF
LINE
(Note 1) 3.3V V
Load Regulation R
LOADVDIFF
(Note 1) V
Thermal Regulation V
Ripple Rejection R
RTH
N
(Note 2) C
Adjustment Pin Current I
Adjustment Pin ³I
Adj
Adj
Current Change V
Miminum Load Current I
Current Limit I
Lmin
CL
(Note 2) V
V
V
V
= 3.0V, TA= 25°C 1.20 1.30
DIFF
V
= 3.3V • 1.20 1.30 V
DIFF
V
= 40V • 1.20 1.30
DIFF
3.0V V
DIFF
40V, V
DIFF
= V
out
40V, V
, TA= 25°C -99mV
ref
= V
out
ref
• -23 23
= 3.0V, 10mA IL 1.5A, TA= 25°C -15 15
= 3.3V, 10mA IL 1.5A • -15 15 m V
DIFF
= 40V, 10mA IL 300mA, TA= 25°C -1 5 15
DIFF
V
= 40V, 10mA IL 195mA • -15 15
DIFF
Vin= 14.6V, IL= 1.5A -16 16 m V
P
= 20 Watts, t = 20 ms, TA=25°C
d
f = 120 Hz, V
V
= 3.0V, TA= 25°C 100
DIFF
V
V
V
= 3.0V, 10mA IL 1.5A, TA= 25°C -55
DIFF
= 3.3V, 10mA IL 1.5A • -55
DIFF
= 40V, 10mA IL 300mA, TA= 25°C • -55
DIFF
= 40V, 10mA IL 195mA • -55µA
V
DIFF
3.0V V
DIFF
3.3V V
V
= 3.0V, V
DIFF
= 3.3V, V
V
DIFF
V
= 40V, V
DIFF
V
= 40V, TA= 25°C 0.18 1.5 A
DIFF
= V
out
ref
= 10 µF
Adj
= 3.3V • 100 µA
DIFF
= 40V • 100
DIFF
• 66 dB
40V, TA= 25°C -55
40V • -55
DIFF
= 1.4V (forced) 5.0
OUT
= 1.4V (forced) • 5.0 m A
OUT
= 1.4V (forced) • 5.0
OUT
= 15V • 1.5 3.5
DIFF
3.3
Notes:
1. Load and Line Regulation are specified at a constant junction temperature. Pulse testing with low duty cycle is used.
Changes in output voltage due to heating effects must be taken into account separately.
2. If not tested, shall be guaranteed to the specified limits.
3. The •denotes the specifications which apply over the full operating temperature range.
MECHANICAL OUTLINE
PIN CONNECTION
TO-257AA
Pin 1: Adjust
Pin 2: Output
Pin 3: Input
Tab: Isolated
123
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