ETC OM7647SM

OM7647SM
SURFACE MOUNT NEGATIVE ADJUSTABLE
1.0 AMP VOLTAGE REGULATOR
Isolated Hermetic Surface Mount Package
1.0 Amp, High Voltage, Negative Adjustable
Voltage Regulator
FEATURES
•
•
•
•
•
•
•
Isolated Hermetic Surface Mount Package
Adjustable Output Voltage
Eliminates Stocking Fixed Voltages
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 metal
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 @ 25°C
Input To Output Voltage Differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 V
Operating Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . . . - 55°C to + 150°C
Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 55°C to + 150°C
Typical Power/Thermal Characteristics:
Rated Power:
TC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17.5W
TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3W
Thermal Resistance:
θJC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.0°C/W
θJA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42°C/W
Max. Lead Solder Temperature for 5 sec . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225°C
3.5
4 11 R0
3.5 - 145
OM7647SM
ELECTRICAL CHARACTERISTICS
-55°C ≤ TA ≤ 125°C, IL = 8mA (unless otherwise specified)
Parameter
Symbol
Test Conditions
Min.
Max.
Reference Voltage
VREF
VDIFF = 3.0V, TA = 25°C
-1.30
-1.20
VDIFF  = 3V
•
VDIFF  = 50V
-1.20
-1.20
-1.30
-1.20
-10
10
-25
25
-25
25
-25
25
-45
45
-5
5
V
VDIFF  = 50V, TA = 25°C
Line Regulation
-1.30
-1.30
•
3.0 V ≤ VDIFF  ≤ 50V, TA = 25°C
RLINE
(Note 1)
mV
•
Load Regulation
VDIFF  = 50V, 8mA ≤ IL ≤ 110mA
RLOAD
(Note 1)
TA = 25°C
mV
VDIFF  = 5V, 8mA ≤ IL ≤ 1.5A, TA = 25°C
•
Thermal Regulation
VRTH
Unit
VIN = -14.6V, IL = 1.5A
mV
Pd = 20 Watts, t = 10 ms, TA = 25°C
Ripple Rejection
RN
f = 120 Hz, VOUT = Vref
•
66
dB
CAdj = 10 µF, IOUT = 100 mA
(Note 2)
Adjustment Pin Current
VDIFF  = 3.0V
•
100
VDIFF  = 40V
•
100
VDIFF  = 50V
•
100
VDIFF  = 5V, 8mA ≤ IOUT ≤ 1.5A
•
-5
5
3V ≤ VDIFF  ≤ 50V
•
-6
6
IAdj
Adjustment Pin
∆IAdj
Current Change
Miminum Load Current
ILmin
Current Limit
ICL
µA
VDIFF  = 3.0V, VOUT = -1.4V (forced)
•
3.0
VDIFF  = 10V, VOUT = -1.4V (forced)
•
3.0
VDIFF  = 40V, VOUT = -1.4V (forced)
•
5.0
VDIFF  = 50V, VOUT = -1.4V (forced)
•
5.0
mA
VDIFF  = 50V, TA = 25°C
(Note 2)
µA
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
.425G
G
2
.100G
.200G
1
G
3.5
3
G
.350 MIN.G
G
.425G
.035 WIDEG
FLAT 3 PLCS.G
± .020G
.115G
.160G
.020G
.080 G
Pin Connections
Pin 1: VIN
Pin 2: Adjust
Pin 3: VOUT
Case: Isolated