CDCLD200 TR13

CDCLD200 CDCLD400 CDCLD500 w w w. c e n t r a l s e m i . c o m DESCRIPTION: The CENTRAL SEMICONDUCTOR CDCLD200, CDCLD400, and CDCLD500 are Current Limiting Diodes (CLDs) specifically designed for applications requiring a constant current over a wide voltage range. The series is designed with a unique process that holds regulator current constant over temperature excursions (zero temperature coefficient). The devices are available in the thermally efficient DPAK package outline. SURFACE MOUNT SILICON CURRENT LIMITING DIODES DPAK CASE MARKING: FULL PART NUMBER FEATURES: • Zero temperature coefficient • High regulator currents available • Industry standard thermally efficient DPAK MAXIMUM RATINGS: (TA=25°C unless otherwise noted) SYMBOL CDCLD200 CDCLD400 CDCLD500 UNITS Peak Operating Voltage POV 27 13.5 10.8 V Peak Operating Voltage (TC=35°C) POV 50 V Power Dissipation (Note 1) PD 6.25 W Power Dissipation (TC=35°C) (Note 1) PD 28.75 W Thermal Resistance ΘJC 4.0 °C/W Operating and Storage Junction Temperature TJ, Tstg -55 to +150 °C Note 1: Mounted on 900mm2 4-layer PCB with 2-ounce copper traces. ELECTRICAL CHARACTERISTICS: (TA=25°C) Maximum Limiting Voltage (tp=5.0ms) Regulator Current (tp=4.5ms) Type MIN mA IP @ VT=5.0V NOM mA MAX mA VL @ 0.8 x IP MIN V CDCLD200 170 200 230 2.0 CDCLD400 340 400 460 2.0 CDCLD500 425 500 575 2.0 R5 (16-August 2023) CDCLD200 CDCLD400 CDCLD500 SURFACE MOUNT SILICON CURRENT LIMITING DIODES DPAK CASE - MECHANICAL OUTLINE  
              LEAD CODE: 1) Cathode 2) Anode 3) No Connection 4) Anode Pin 2 is common to the tab (4) MARKING: FULL PART NUMBER R5 (16-August 2023) w w w. c e n t r a l s e m i . c o m CDCLD200 CDCLD400 CDCLD500 SURFACE MOUNT SILICON CURRENT LIMITING DIODES TYPICAL ELECTRICAL CHARACTERISTICS R5 (16-August 2023) w w w. c e n t r a l s e m i . c o m CDCLD200 CDCLD400 CDCLD500 SURFACE MOUNT SILICON CURRENT LIMITING DIODES TYPICAL APPLICATIONS Figure 1. CLDs can be used to limit the current flowing through LED strings. Their dynamic performance make them an excellent replacement for current limiting resistors, as they allow for continuous current regulation regardless of input voltage. LED strings like this are commonly used in dimming lighting systems. By using a PWM input to control the transistor, the LED luminosity can be controlled by extending or decreasing the pulse width, allowing for control over the brightness of the LED. R5 (16-August 2023) w w w. c e n t r a l s e m i . c o m CDCLD200 CDCLD400 CDCLD500 SURFACE MOUNT SILICON CURRENT LIMITING DIODES TYPICAL APPLICATIONS Figure 2. When designing differential amplifiers, it is essential to use a high impedance tail resistor to control both differential and common mode function. For differential signals, the tail resistor effectively splits the current amongst the transistors. This ensures proportional current increase and decrease between the transistors. The high impedance drives down the common mode gain and increases the common mode rejection ratio, thus yielding a more ideal amplifier. Ideally, an infinite impedance current source would be used in place of the tail resistor. While the ideal current source doesn’t exist, CLDs serve as an excellent replacement for the tail resistor and also perform much like an active current source, both regulating the circuit to a constant current and presenting a large tail impedance. This yields a larger CMRR than using a high impedance tail resistor would. R5 (16-August 2023) w w w. c e n t r a l s e m i . c o m OUTSTANDING SUPPORT AND SUPERIOR SERVICES PRODUCT SUPPORT Central’s operations team provides the highest level of support to insure product is delivered on-time. • Supply management (Customer portals) • Custom bar coding for shipments • Inventory bonding • Custom product packing • Consolidated shipping options DESIGNER SUPPORT/SERVICES Central’s applications engineering team is ready to discuss your design challenges. Just ask. • Free quick ship samples (2nd day air) • Special wafer diffusions • Online technical data and parametric search • PbSn plating options • SPICE models • Package details • Custom electrical curves • Application notes • Environmental regulation compliance • Application and design sample kits • Customer specific screening • Custom product and package development • Up-screening capabilities REQUESTING PRODUCT PLATING 1. If requesting Tin/Lead plated devices, add the suffix “ TIN/LEAD” to the part number when ordering (example: 2N2222A TIN/LEAD). 2. If requesting Lead (Pb) Free plated devices, add the suffix “ PBFREE” to the part number when ordering (example: 2N2222A PBFREE). CONTACT US Corporate Headquarters & Customer Support Team Central Semiconductor Corp. 145 Adams Avenue Hauppauge, NY 11788 USA Main Tel: (631) 435-1110 Main Fax: (631) 435-1824 Support Team Fax: (631) 435-3388 www.centralsemi.com Worldwide Field Representatives: www.centralsemi.com/wwreps Worldwide Distributors: www.centralsemi.com/wwdistributors For the latest version of Central Semiconductor’s LIMITATIONS AND DAMAGES DISCLAIMER, which is part of Central’s Standard Terms and Conditions of sale, visit: www.centralsemi.com/terms w w w. c e n t r a l s e m i . c o m (001)