• CURRENT REGULATOR CHIPS CCR250 thru CCR257 • ALL JUNCTIONS COMPLETELY PROTECTED WITH SILICON DIOXIDE • CONSTANT CURRENT OVER WIDE VOLTAGE RANGE • HIGH SOURCE IMPEDANCE • COMPATIBLE WITH ALL WIRE BONDING AND DIE ATTACH TECHNIQUES, WITH THE EXCEPTION OF SOLDER REFLOW MAXIMUM RATINGS ELECTRICAL CHARACTERISTICS @ 25°C, unless otherwise specified TYPE NUMBER REGULATOR CURRENT l p (mA) @ VS = 25V MINIMUM DYNAMIC IMPEDANCE @VS = 25V ZS (K ) MINIMUM KNEE IMPEDANCE @VK = 6.0 V ZK(K ) MAXIMUM LIMITING VOLTAGE @ lL = 0.8 I p (min) PEAK OPERATING VOLTAGE NOM MIN MAX (Note 2) (Note 3) VL (VOLTS) VOLTS CCR250 CCR251 CCR252 CCR253 5.10 5.60 6.20 6.80 4.59 5.04 5.58 6.12 5.61 6.16 6.82 7.48 100 90 80 70 4.0 4.0 3.0 2.0 3.67 4.03 4.46 4.90 80 80 70 70 CCR254 CCR255 CCR256 CCR257 7.50 8.20 9.10 10.00 6.75 7.38 8.19 9.00 8.25 9.02 10.01 11.10 50 30 20 10 1.5 1.5 1.0 1.0 5.40 5.90 6.55 7.20 60 60 50 50 Backside is Cathode A = Anode DESIGN DATA METALLIZATION: Top: (Anode).......................Al Back: (Cathode)...................Au AL THICKNESS...........25,000 Å Min GOLD THICKNESS .......4,000 Å Min NOTE 1 CHIP THICKNESS .................10 Mils IP is read using a pulse measurement, 10 milliseconds maximum. NOTE 2 ZS is derived by superimposing A 90Hz RMS signal equal to 10% of VS on VS NOTE 3 ZK is derived by superimposing A 90Hz RMS signal equal to 10% of VK on VK 6 LAKE STREET, LAWRENCE, PHONE (978) 620-2600 WEBSITE: http://www.microsemi.com TOLERANCES: ALL Dimensions + 2 mils, except Anode Pad where tolerance is + 0.1 mils. M A S S A C H U S E T T S 01841 FAX (978) 689-0803 171 28 MILS 13 MILS Operating Temperature: -55°C to +175°C Storage Temperature: -55°C to +175°C THIS PAGE IS INTENTIONALLY LEFT BLANK 172