CLM285-12 CALOGIC | Alldatasheet

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Technical content

CLM285-1.2 / CLM385-1.2

FEATURES

  • • Low Temperature Coefficient PRODUCT DESCRIPTION The CLM285 / 385 - 1.2 are micropower 2 terminal band- gap voltage regulator diodes. Operating over a wide current range of 10µA to 20mA with low dynamic impedance and stable temperature characteristics. Calogic utilizes on-chip trimming to provide tight voltage tolerances. The devices are excellent in portable meters, regulators or general purpose analog circuitry with battery life approaching shelf life.

ORDERING INFORMATION

Part Package Max Tempco (ppm) Temp Range CLM285Y1 SOIC 100 -40 oC to +85oC CLM385T1 TO-46 100 0 oC to +70oC CLM385N1 TO-92 100 0 oC to +70oC CLM385Y1 SOIC 100 0 oC to +70oC PIN CONFIGURATIONS CORPORATION TO-92 TO-92 (N-SUFFIX) BOTTOM VIEW 123 87 6 5 1 2 3 4 NC NC NC+ NC NC -NC SO PACKAGE (Y-SUFFIX) BOTTOM VIEW SO-8 1004

Operating T emperature Range oC to +85oC Soldering Information ELECTRICAL CHARACTERISTICS (Note 1) PARAMETER CLM285-1.2 CLM385-1.2 UNITS (LIMITS) CONDITIONS TYP TESTED LIMIT (NOTE 2) DESIGN LIMIT (NOTE 3) TYP TESTED LIMIT (NOTE 2) DESIGN LIMIT (NOTE 3) Reverse Breakdown Voltage 1.235 1.220 1.245 1.235 1.235 1.223 1.247 1.225 1.245 VMIN VMAX VMIN VMAX TA = 25oC, 1MIN ≤ IR ≤ IMAX CLM285-1.2/CLM385B-1.2 CLM385-1.2 Minimum Operating Current 88 10 81 5 10 µA Reverse Breakdown 1 1.5 1 1.5 mV I MIN ≤ IR ≤ 1mA Voltage Change with Current 10 20 10 20 mV 1mA ≤ IR ≤ 20mA Reverse Dynamic Impedance 1 1.5 1 1.5 Ω IR = 100µA, f = 20Hz Wideband Noise (rms) 60 60 µV IR = 100µA 10Hz ≤ f ≤ 10kHz Long Term Stability 20 20 ppm IR = 100µA, T = 1000Hr TA = 25oC ±.0.1oC Average Temperature Coefficient (Note 4) 50 100 50 100 ppm/oCI R = 100µA Note 1: Parameters identified with boldface type apply at temperature extremes and for IMIN < IR < 20mA, unless otherwise specified. All other numbers apply at TA = TJ = 25oC. Note 2: Guaranteed and 100% production tested. Note 3: Guaranteed (but not 100% production tested) over the operating temperature and input current ranges. These limits are not to be used to calculate outgoing quality levels. Note 4: The average temperature coefficient is defined as the maximum deviation of reference voltage at all measured temperatures between the operating TMAX and TMIN, divided by TMAX -TMIN . The measured temperatures are -55oC, -40oC, 0oC, 25oC, 70oC, 85oC, 125oC. Note 5: For elevated temperature operation, Tj max is: CLM285 125oC CLM385 100oC Thermal Resistance TO-92 SO-8 θja (Junction to Ambient) 180oC/W (0.4" leads) 170oC/W (0.125" leads) 165oC/W θjc (Junction to Case) N/A N/A CLM285-1.2 / CLM385-1.2 CORPORATION

APPLICATIONS

CLM385-1.2 OUT 1.2V 4.3k = 2.3V TO 30VVIN WIDE INPUT RANGE REFERENCE LM334 Adustable Current Source CENTIGRADE THERMOMETER LM334 OUTPUT 1mV/˚C V + R V1 V2 90k 25k CLM385-1.227k 7.2k 2.2k V - 1.5V* CALIBRATION 1. ADJUST R1 SO THAT V1 = TEMP AT 1mV/˚K 2. ADJUST V2 TO 273.2mV Q FOR 1.3V TO 1.6V BATTERY VOLTAGE = * I 50µA TO 150µA CLM285-1.2 / CLM385-1.2 CORPORATION