3.5 - 101
3.5
Three Terminal, High Voltage, Precision
Adjustable Negative Voltage Regulator In
Hermetic Surface Mount Package
4 11 R0
SURFACE MOUNT 1.5 AMP HIGH VOLTAGE
NEGATIVE ADJUSTABLE REGULATOR
FEATURES
Hermetic Surface Mount Package
Adjustable Output Voltage
Built-In Thermal Overload Protection
Short Circuit Current Limiting
Product Is Available Hi-Rel Screened
Electrically Similar To Industry Standard Type LM137HV
DESCRIPTION
This three terminal negative regulator is supplied in a hermetically sealed surface
mount package. All protective features are designed into the circuit, including thermal
shutdown, current limiting and safe-area control. With heat sinking, they can deliver
over 1.0 amp of output current. This unit features output voltages that can be
trimmed using external resistors, from -1.2 volts to -47 volts.
ABSOLUTE MAXIMUM RATINGS
@ 25C
Input to Output Voltage Differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 V
Operating Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . . . - 55C to + 150C
Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 55C to + 150C
Typical Power/Thermal Characteristics:
Rated Power:
T
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17.5 W
T
A
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 W
Thermal Resistance:
JC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5 C/W
JA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 C/W
Lead Temperature at Case (5 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225 C
OM7612NM
3
Pin 1: Adjust
Pin 2: V
OUT
Pin 3: V
IN
PIN CONNECTION
3
1
2
OM7612NM
3.5
ELECTRICAL CHARACTERISTICS
-55C T
A
125C, I
L
= 8mA (unless otherwise specified)
Parameter
Symbol
Test Conditions
Min.
Max.
Unit
Reference Voltage
V
REF
V
DIFF
3.0V, T
A
= 25C
-1.275
-1.225
V
DIFF
= 3V
-1.30
-1.20
V
V
DIFF
= 50V, T
A
= 25C
-1.275
-1.225
V
DIFF
= 50V
-1.30
-1.20
Line Regulation
R
LINE
3.0 V
V
DIFF
50V, T
A
= 25C
-10
10
(Note 1)
-25
25
mV
Load Regulation
R
LOAD
V
DIFF
= 50V, 8mA I
L
110mA
-25
25
(Note 1)
T
A
= 25C
V
DIFF
= 5V, 8mA I
L
1.5A, T
A
= 25C
-25
25
mV
-45
45
Thermal Regulation
V
RTH
VIN = -14.6V, I
L
= 1.5A
-5
5
mV
P
d
= 20 Watts, t = 10 ms, T
A
= 25C
Ripple Rejection
R
N
f = 120 Hz, VOUT = V
ref
66
dB
(Note 2)
C
Adj
= 10 F, IOUT = 100 mA
Adjustment Pin Current
I
Adj
V
DIFF
= 3.0V
100
V
DIFF
= 40V
100
A
V
DIFF
= 50V
100
Adjustment Pin
I
Adj
V
DIFF
= 5V, 8mA IOUT 1.5A
-5
5
A
Current Change
3V
V
DIFF
50V
-6
6
Miminum Load Current
I
Lmin
V
DIFF
= 3.0V, VOUT = -1.4V (forced)
3.0
V
DIFF
= 10V, VOUT = -1.4V (forced)
3.0
mA
V
DIFF
= 40V, VOUT = -1.4V (forced)
5.0
V
DIFF
= 50V, VOUT = -1.4V (forced)
5.0
Current Limit
I
CL
V
DIFF
= 5V
1.5
3.5
(Note 2)
V
DIFF
= 50V, T
A
= 25C
0.2
1.0
A
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
.500
.140
.415
.157
.015
.140
.140
.075
.075
.062
.375
.030
MIN.
TOP VIEW
SIDE VIEW
BOTTOM VIEW
.625
Top View
Side View
Bottom View
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