Micropower Voltage Reference Diode CORPORATION CLM285-2.5 / CLM385-2.5 FEATURES • Operating Current . . . . . . . . . . . . . . . . . . . 20µA - 20mA • Dynamic Impedance . . . . . . . . . . . . . . . . . . . . . . . . . . 1Ω • Low Voltage Reference . . . . . . . . . . . . . . . . . . . . . . . 2.5V PRODUCT DESCRIPTION ORDERING INFORMATION Part CLM285Y2 CLM385T2 CLM385N2 CLM385Y2 Package Max Tempco (ppm) Temp Range SOIC TO-46 TO-92 SOIC 100 100 100 100 The CLM285 / 385 - 2.5 are 2 terminal band-gap voltage regulator diodes. Operating over a 20µA to 20mA current range. The devices provide good temperature stability and exceptionally low dynamic impedance. Designed for applications in portable meters, regulators or general purpose circuitry. PIN CONFIGURATIONS SO-8 TO-92 + 8 3 2 NC NC NC 7 6 5 1 TO-92 (N-SUFFIX) BOTTOM VIEW 1 2 3 NC NC NC SO PACKAGE (Y-SUFFIX) BOTTOM VIEW 4 - -40oC to +85oC 0oC to +70oC 0oC to +70oC 0oC to +70oC CLM285-2.5 / CLM385-2.5 CORPORATION ABSOLUTE MAXIMUM RATINGS (Note 1) Reverse Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30mA Forward Current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10mA Operating Temperature Range (Note 3) CLM185-2.5 . . . . . . . . . . . . . . . . . . . . . . . -55oC to +125oC CLM285-2.5 . . . . . . . . . . . . . . . . . . . . . . . . -40oC to +85oC CLM385-2.5 . . . . . . . . . . . . . . . . . . . . . . . . . . 0oC to +70oC Storage Temperature . . . . . . . . . . . . . . . . . . -55oC to +150oC Soldering Information TO-92 Package (10 sec.). . . . . . . . . . . . . . . . . . . . . 260oC TO-46 Package (10 sec.). . . . . . . . . . . . . . . . . . . . . 300oC SO Package: Vapor Phase (60 sec.) . . . . . . . . . . 215oC Infrared (15 sec.) . . . . . . . . . . . . . . 220oC ELECTRICAL CHARACTERISTICS (Continued) (Note 3) CLM285-2.5 PARAMETER CLM385-2.5 UNITS (LIMITS) TYP TESTED LIMIT (NOTE 4) Reverse Breakdown Voltage 2.5 2.460 2.535 Minimum Operating Current 13 18 20 20 20 µA(Max) 1 1.5 2.0 1.5 mV(Max) 20µA ≤ I R ≤ 1mA 10 20 20 25 mV(Max) 1mA ≤ IR ≤ 20mA Reverse Breakdown Voltage Change with Current DESIGN LIMIT (NOTE 5) TESTED DESIGN LIMIT LIMIT (NOTE 4) (NOTE 5) 2.470 2.530 V(min) V(max) CONDITIONS TA = 25oC, 20µA ≤ I R ≤ 20mA 1 Ω IR = 100µA, f = 20Hz Wideband Noise (rms) 120 µV IR = 100µA 10Hz ≤ f ≤ 10kHz Long Term Stability 20 ppm Reverse Dynamic Impedance Average Temperature Coefficient (Note 6) 50 100 100 ppm/oC(Max) IR = 100µA, T = 1000Hr, TA = 25oC ±.0.1 oC IR = 100µA Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is intended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics. The guaranteed specifications apply only for the test conditions listed. Note 2: For elevated temperature operation, T j max is: CLM285 125oC CLM385 100oC Thermal Resistance θja (Junction to Ambient) θjc (Junction to Case) TO-92 SO-8 180oC/W (0.4" Leads) 170oC/W (0.125" Leads) 165oC/W N/A N/A Note 3: Parameters identified with boldface type apply at temperature extremes. All other numbers apply at TA = TJ = 25oC. Note 4: Guaranteed and 100% production tested. Note 5: Guaranteed, but not 100% production tested. These limits are not used to calculate average outgoing quality levels. Note 6: The average temperature coefficient is defined as the maximum deviation of reference voltage at all measured temperatures between the operating T MAX and TMIN, divided by TMAX-TMIN. The measured temperatures are -55oC, -40 oC, 0oC, 25 oC, 70 oC, 85oC, 125oC. CLM285-2.5 / CLM385-2.5 CORPORATION APPLICATIONS WIDE INPUT RANGE REFERENCE VIN = 3.7V TO 30V MICROPOWER REFERENCE FROM 9V BATTERY 9V 200k LM334 3.3k OUT 2.5V CLM385-2.5 2.5V CLM385-2.5