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| 1.25VPrecision Adjustable Shunt Reference / Amplifier CORPORATION Preliminary Product Information CL432A FEATURES DESCRIPTION o * * * * * * Temperature-Compensated: 50ppm/ C Trimmed 1% Bandgap Reference Internal Amplifier with 150mA Capability Nominal Temperature Range Extended to 105oC Low Frequency Dynamic Output Impedance: < 150m Low Output Noise Calogic's CL432A is a 3-terminal Adjustable Shunt Regulator highly accurate 1.25V bandgap reference with a 1% tolerance. The device offers thermal stability, wide operating current (100mA) and an extended temperature range of 0o to 105oC for operation in power supply applications. The CL432A offers a wide operating voltage range of up to 10V and is an excellent choice for voltage reference requirements in an isolated feedback circuit for 3.0V to 3.3V switching mode power supplies. The tight tolerance guarantees a lower design cost for the power supply manufacturer by virtually eliminating the need for an extra power supply manufacturing process of the power supply. The device is housed in several package options to meet the designers criteria. ORDERING INFORMATION Part CL432ALP CL432AD CL432AVS CL432AS Package TO-92 8-Pin Plastic SOIC SOT-23 SOT-89 Temperature Range 0 to 105oC 0 to 105oC 0 to 105oC 0 to 105oC PIN CONFIGURATION (Top View) TO-92 (LP) CATHODE CATHODE ANODE ANODE ANODE REFERENCE 1G-33 SOIC (D) 1 2 3 4 8 7 6 5 REFERENCE ANODE ANODE N/C 1G-34 N/C SOT-23 (VS) CATHODE ANODE REFERENCE SOT-89 (S) CATHODE ANODE REFERENCE 1J-22 1G-35 CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025 CL432A CORPORATION ABSOLUTE MAXIMUM RATINGS SYMBOL VKA IAK IKA IREF PD PARAMETER Cathode-Anode Reverse Breakdown Anode-Cathode Forward Current Operating Cathode Current Reference Input Current Continuous Power at 25 oC TO-92 8L SOIC SOT-23 SOT-89 Junction Temperature Storage Temperature Lead Temperature, Soldering 10 Seconds RATING 10 1 100 1 UNITS V A mA mA 775 750 1000 200 150 -65 to 150 300 mW mW mW mW o o o TJ TSTG TL C C C Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. RECOMMENDED CONDITIONS SYMBOL VKA IK PARAMETER Cathode Voltage Cathode Current RATING VREF to 10 10 UNIT V mA TYPICAL THERMAL RESISTANCES PACKAGE TO-92 SOIC SOT-23 SOT-89 JA 160 oC/W 175 oC/W 575oC/W 110oC/W JC 80 oC/W 45 oC/W 150 oC/W 8oC/W TYPICAL DERATING 6.3mW/oC 5.7mW/oC 1.7mW/oC 9.1mW/oC FUNCTIONAL BLOCK DIAGRAM CATHODE (K) REFERENCE (R) + - + - 1.25V ANODE (A) 1J-23 CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025 CL432A CORPORATION ELECTRICAL CHARACTERISTICS Electrical characteristics are guaranteed over full junction temperature range (0 to 105 oC). Ambient temperature must be derated based on power dissipation and package thermal characteristics. The conditions are: VKA = VREF and IK = 10mA unless otherwise stated. SYMBOL VREF VREF VREF VREF IREF I REF IK(MIN) IK(MIN) PARAMETER Output Voltage Line Regulation Load Regulation Temperature Deviation Reference Input Current Reference Input Current Temperature Coefficient Min. Cathode Current for Regulation Off State Leakage MIN 1.237 TYP 1.250 10 3 2 3 0.3 0.6 0.04 MAX 1.263 15 6 6 6 0.6 1 500 UNIT V mV mV mV A A mA nA VREF = 0V, VKA = 10V 0 < TJ < 105 oC TEST CONDITION IK = 10mA, T J = 25oC, VK = VREF VK = 1.25 to 10V IK = 1 to 100mA 0 < TJ < 105 oC *Temperature deviation is defined as the maximum deviation of the reference over the given temperature range and does not imply an incremental deviation at any given temperature. TYPICAL PERFORMANCE CURVES (Not available at time of publishing) Information furnished by Calogic is believed to be accurate and reliable. However, no responsibility is assumed for its use: nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent rights of Calogic. CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025 |
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