OUTLINE DIMENSIONS
HEATER BLOCK
DIAGRAM
MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Supply Voltage
70
VDC
4
Watts
°
C
°
C
120
-65 to +150
PD
TMAX
TMIN
Power Dissipation
Operating Temperature
Storage Temperature
OPERATING CHARACTERISTICS
Characteristic
Symbol
Min
Max
VDC
°
C
°
C
°
C
VDD
TC
Supply Voltage (Pin 1 to Pin 2)
Supply Current at Turn on vs.
Power Supply Voltage
+15
+60
Temperature Variation over
Operating Voltage
2
Temperature Variation with Load
3
Control Resistor Value
Pin 3 to Pin 4 (See Table 1)
Control Temperature Range
See Table 1
RC
0
Ω
Unit
120
mADC
Turn on power at start-up
Watts
TV
TL
FEATURES
SUBMINIATURE PROPORTIONALLY CONTROLLED HEATER
GENERAL DESCRIPTION
• BERYLLIA BASE FOR GOOD THERMAL CONDUCTION
• REGULATION TEMPERATURE FROM 5°C ABOVE AMBIENT TO 100°C
• 15 TO 70 VOLT OPERATION
• ELECTRICALLY ISOLATED FROM THE CASE
PIN
1
2
Heater
surface
The DN511 electrical
output pads are Pd-Pt-Ag
and can be soldered. The
solder used, such as SN-62,
should contain silver to
prevent leaching of the pads
from the substrate.
Pad size
is 0.060" x
0.107"
(four places)
0.275"
0.480"
0.025"
0.110"
0.340"
3
4
0.060"
0.107"
0.041"
0.107"
0.010"
0.010"
VDD 1
4
3
RC
2
+
TEMP.
SENSOR
COM.
DATA SHEET
DN511
See Figure 3
Supply Current at Turn-on
VDD = +30 Volts
mADC
110
90
ION
Ambient
See Figure 2
VDD
ION
PON
™
™
xxxx
DN511
Therm
Optics
Page 1
The DN511 is a subminiature proportionally controlled heater,
whose temperature can be programmed with a single external resistor.
A unique design allows this device to operate over a large voltage range
from 15volts to +60 Volts D.C. without drawing excessive current at
turn-on.Temperature of the DN511 can be set at the factory upon request.
The DN511 is in a ceramic package and can supply up to 3.5 watts of
power from an unregulated power supply.
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