DN515

ThermOptics® DATA SHEET SUBMINIATURE PROPORTIONALLY CONTROLLED HEATER GENERAL DESCRIPTION The DN515 is a subminiature proportionally controlled heater whose temperature can be programmed with a single external resistor. This device is ideally suited for regulating the temperature of sensitive electronic components such as microwave filters and crystal oscillators. The DN515 is in a ceramic package and can supply up to 28 watts of power from an unregulated 28 Volt power supply. FEATURES BERYLLIA BASE FOR GOOD THERMAL CONDUCTION REGULATION TEMPERATURE FROM 5°C ABOVE AMBIENT TO 100°C 28 T0 50 VOLT OPERATION ELECTRICALLY ISOLATED FROM THE CASE HEATER BLOCK DIAGRAM VDD + 1 CONTROL CIRCUIT TEMP. SENSOR HEATER DN515 4 Temp. set resistor 3 4 3 0.180" COM. 2 MAXIMUM RATINGS Rating Supply Voltage Reverse Voltage (Pin 1 to Pin 2) Power Dissipation Operating Temperature Storage Temperature Symbol VDD VR PD TMAX TMIN Value 35 -50 35 120 -65 to +150 Unit OUTLINE DIMENSIONS VDC PIN 1 VDC 0.500" Watts °C °C DAWN DN515 DATE CODE 2 Characteristic Supply Voltage (Pin 1 to Pin 2) Steady State Supply Current @ VDD = +28 Vdc Temperature Variation over Operating Voltage Temperature Variation with Load Control Temperature Range Control Resistor Value Pin 3 to Pin 4 (See Chart) Maximum Control Temperature when RS= 0 Ohms Turn on power at start-up @ VDD = +28 Vdc TA ---- Ambient Temperature Symbol VDD IS !TV !TL TC RS TMAX PD Min +20 0.015 Max +35 1.0 2 10 Unit Vdc Adc °C °C °C 0.07...