OM7612SM
SURFACE MOUNT 1.0 AMP HIGH VOLTAGE
NEGATIVE ADJUSTABLE REGULATOR
Three Terminal, High Voltage, Precision
Adjustable Negative Voltage Regulator In
A Hermetic Surface Mount Package
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
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
@ 25°C
Power Dissipation (P
d
) (Internally Limited). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 W
Input - Output Voltage Differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 V
Operating Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . - 55°C to + 150°C
Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 65°C to + 150°C
Lead Temperature (Soldering 10 Seconds) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280°C
Thermal Resistance: Junction-to-Case . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.5°C/W
MECHANICAL OUTLINE
.450
SQ.
.02 x 45°
.090
MAX.
.035
4
PIN 1
PIN 28
1
26
TOP
.05 X 45°
MAX. 3 PLCS.
SIDE
.009 R. BOTTOM
28 PLCS.
.300
4 PLCS.
.050
24 PLCS.
12
.305
SQ.
18
Pin Connection
Pin 1, 15 thru 28:
OUT
Pin 2, 3, 13, and 14: ADJ
Pin 4 thru 12:
IN
3.5
4 11 R0
3.5 - 103
OM7612SM
ELECTRICAL CHARACTERISTICS
Parameter
Reference Voltage
Symbol
V
REF
-55°C ≤ T
A
≤ 125°C, I
L
= 8mA (unless otherwise specified)
Min.
-1.30
•
•
•
-1.30
-1.30
-1.30
-12
-30
-30
-30
•
-50
-16
•
•
•
•
•
•
•
•
•
•
0.2
-10
-10
66
100
100
100
10
10
10
10
10
10
1.0
A
mA
µA
µA
Max.
-1.20
-1.20
-1.20
-1.20
12
30
30
30
50
16
mV
dB
mV
mV
V
Unit
Test Conditions
V
DIFF
3.0V, T
A
= 25°C
V
DIFF
= 3V
V
DIFF
= 50V, T
A
= 25°C
V
DIFF
= 50V
Line Regulation
(Note 1)
Load Regulation
(Note 1)
R
LINE
R
LOAD
3.0 V ≤
V
DIFF
≤ 50V, T
A
= 25°C
V
DIFF
= 50V, 8mA ≤ I
L
≤ 110mA
T
A
= 25°C
V
DIFF
= 5V, 8mA ≤ I
L
≤ 1.0A, T
A
= 25°C
Thermal Regulation
Ripple Rejection
(Note 2)
Adjustment Pin Current
V
RTH
R
N
I
Adj
VIN = -14.6V, I
L
= 1.0A
P
d
= 20 Watts, t = 10 ms, T
A
= 25°C
f = 120 Hz, V
OUT
= V
ref
C
Adj
= 10 µF, I
OUT
= 100 mA
V
DIFF
= 3.0V
V
DIFF
= 40V
V
DIFF
= 50V
Adjustment Pin
Current Change
Miminum Load Current
∆I
Adj
I
Lmin
V
DIFF
= 5V, 8mA ≤ I
OUT
≤ 1.0A
3V ≤
V
DIFF
≤ 50V
V
DIFF
= 3.0V, V
OUT
= -1.4V (forced)
V
DIFF
= 10V, V
OUT
= -1.4V (forced)
V
DIFF
= 40V, V
OUT
= -1.4V (forced)
V
DIFF
= 50V, V
OUT
= -1.4V (forced)
Current Limit (Note 2)
I
CL
V
DIFF
= 50V, T
A
= 25°C
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.
3.5
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