CDLL256

• CURRENT REGULATOR DIODES • LEADLESS PACKAGE FOR SURFACE MOUNT • CONSTANT CURRENT OVER WIDE VOLTAGE RANGE • HIGH SOURCE IMPEDANCE • METALLURGICALLY BONDED CDLL250 thru CDLL257 MAXIMUM RATINGS Operating Temperature: -65°C to +175°C Storage Temperature: -65°C to +175°C DC Power Dissipation: 500 mW @ +50°C Power Derating: 4 mW / °C above +50°C ELECTRICAL CHARACTERISTICS @ 25°C, unless otherwise specified TYPE NUMBER REGULATOR CURRENT l p (mA) @ VS = 25V (Note 1) NOM MIN 4.59 5.04 5.58 6.12 6.75 7.38 8.19 9.00 MAX 5.61 6.16 6.82 7.48 8.25 9.02 10.01 11.10 5.10 5.60 6.20 6.80 7.50 8.20 9.10 10.00 MINIMUM DYNAMIC IMPEDANCE @VS = 25V ZS (K ) (Note 2) 100 90 80 70 50 30 20 10 MINIMUM KNEE IMPEDANCE @VK = 6.0 V ZK(K ) (Note 3) 4.0 4.0 3.0 2.0 1.5 1.5 1.0 1.0 MAXIMUM LIMITING VOLTAGE @ lL = 0.8 l p (min) VL (VOLTS) 3.67 4.03 4.46 4.90 5.40 5.90 6.55 7.20 DIM D F G G1 S PEAK OPERATING VOLTAGE VOLTS 80 80 70 70 60 60 50 50 MILLIMETERS MIN MAX 2.39 2.66 0.41 0.55 4.80 5.20 4.11 REF. 0.03 MIN. INCHES MIN MAX .094 .105 .016 .022 .189 .205 .159 REF. .001 MIN. FIGURE 1 CDLL250 CDLL251 CDLL252 CDLL253 CDLL254 CDLL255 CDLL256 CDLL257 DESIGN DATA CASE: DO-213AB, Hermetically sealed glass case. (MELF, LL41) LEAD FINISH: Tin / Lead THERMAL RESISTANCE: (ROJEC): 100 °C/W maximum at L = 0 inch NOTE 1 NOTE 2 NOTE 3 Pulse measurement @ 1% duty cycle, 10 milliseconds maximum. ZS is derived by superimposing A 90Hz RMS signal equal to 10% of VS on VS ZK is derived by superimposing A 90Hz RMS signal equal to 10% of VK on VK THERMAL IMPEDANCE: (ZOJX): 25 °C/W maximum POLARITY: Diode to be operated with the band (cathode) end negative. MOUNTING SURFACE SELECTION: The Axial Coefficient of Expansion (COE) Of this Device is Approximately +6PPM/°C. The COE of the Mounting Surface System Should Be Selected To Provide A Suitable Match With This Device. 6 L AKE STREET, LAWRENCE, MASSACHUSETTS 01841 PHONE (978) 620-2600 FAX (978) 689-0803 WEBSITE: http://www.microsemi.com 87