STCS05A STMicroelectronics, STCS05A Datasheet
STCS05A
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STCS05A Summary of contents
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... Low voltage lighting ■ Small appliances LED lighting ■ Car LED lights Description The STCS05A is a BiCMOS constant current source designed to provide a precise constant current starting from a varying input voltage source. The main target is to replace discrete Table 1. Device summary Order code ...
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Contents 1 Application diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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... IN IN OFF OFF OFF OFF C C BYP BYP 0.1µF 0.1µ PWM PWM STCS05A STCS05A DISC DISC SLOPE SLOPE GND GND C C Load disconnection Load disconnection SLOPE SLOPE (Open Drain output) (Open Drain output) 10nF 10nF DRAIN ...
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Pin configuration Figure 2. Pin connections (top view) Table 2. Pin description Pin n° Symbol 1 V Supply voltage CC 2 PWM PWM dimming input 3 EN Shutdown pin 4 DRAIN Internal N-MOSFET drain Feedback input. The control loop ...
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Maximum ratings Table 3. Absolute maximum ratings Symbol V DC supply voltage CC DRAIN Drain pin PWM, EN, DISC Logic pins SLOPE, FB Configuration pins ESD Human body model (all pins) Power Dissipation SO-8 T =25° Junction ...
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Electrical characteristics Table 5. Electrical characteristics ( µF; C DRAIN BYP Symbol Parameter V Supply voltage range CC Output current range I Output current O Regulation (percentage with respect ...
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Timing Figure 3. PWM and output current timing PWM PWM Current Current Figure 4. Block diagram High Voltage High Voltage Preregulator Preregulator 3.3 V 3.3 V Enable Enable EN EN Input ...
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Typical performance characteristics Figure DRAIN CC A Figure temperature DRAIN Figure temperature CC 8/ °C Figure 6. 1000 1000 100 100 ...
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Figure 11 rise fall SLOPE Figure 13. Rise time 10nF - T = 25° C DRAIN SLOPE A Figure 12. Turn-on time I DRAIN Figure 14. Fall time I ...
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... Detail description The STCS05A is a BiCMOS constant current source designed to provide a precise constant current starting from a varying input voltage source. The main target is to replace discrete components solution for driving LEDs in low voltage applications such giving benefits in terms of precision, integration and reliability. ...
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... Diagnostic When STCS05A mode (EN is high), the device is able to detect disconnection or fail of the LED string monitoring V pulled low regardless the PWM pin status. This information can be used by the system to inform that some problem happens in the LEDs. pin lower than 75 mV the DISC pin is ...
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... IN 8.2 Thermal considerations The STCS05A is able to control a LED current up to 500 mA and able to sustain a voltage on the drain pin Those operating conditions are however limited by thermal constraints, the thermal resistances shown in the thermal data section is the typical ones. The power dissipation in the device can be calculated as follow: ...
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In this case V DRAIN P = (1.2 - 0. The junction temperature will be 100 x 0.391 + °C J For a correct operation of ...
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Package mechanical data In order to meet environmental requirements, ST offers these devices in ECOPACK packages. These packages have a lead-free second level interconnect. The category of second Level Interconnect is marked on the package and on the inner ...
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SO-8 mechanical data mm. Dim. Min. Typ. A 1.35 A1 0.10 A2 1.10 B 0.33 C 0.19 D 4.80 E 3.80 e 1.27 H 5.80 h 0.25 L 0.40 k ddd inch. Max. Min. Typ. 1.75 0.053 0.25 0.04 1.65 ...
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Tape & reel SO-8 mechanical data Dim. Min 12 8.1 Bo 5.5 Ko 2.1 Po 3.9 P 7.9 16/18 mm. Typ. Max. Min. 330 13.2 0.504 0.795 2.362 22.4 8.5 0.319 5.9 ...
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Revision history Table 6. Document revision history Date Revision 04-Mar-2008 1 02-Jul-2008 2 Changes Initial release. Modified: Table 5 on page 6. 17/18 ...
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... Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...