STCS1 STMicroelectronics, STCS1 Datasheet
STCS1
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STCS1 Summary of contents
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... Small appliance LED lighting ■ Car LED lights Description The STCS1 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 ...
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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 STCS1 STCS1 DISC DISC Load disconnection Load disconnection (Open Drain output) (Open Drain output) DRAIN DRAIN C C DRAIN DRAIN 0.47µF 0.47µ GND ...
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Pin configuration Figure 2. Pin connections (top view) DFN8 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 ...
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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 FB Configuration pins ESD Human body model (all pins) (1) T Junction temperature J T Storage temperature range ...
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Electrical characteristics Table 5. Electrical characteristics ( 100 mA typical values are at T Symbol Parameter V Supply voltage range CC Output current range I Output current O Regulation (percentage ...
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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. Figure 8. Figure 10 ...
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... LED sources. 7.4 Diagnostic When STCS1 mode (EN is high), the device is able to detect disconnection or fail of the LED string monitoring V low regardless the PWM pin status. This information can be used by the system to inform that some problem happens in the LEDs. ...
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... Figure 11. Reverse polarity condition 8.2 Thermal considerations The STCS1 is able to control a LED current up to 1.5 A 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 particular R ...
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Package: DFN8 3x3 mm; – ° this case V DRAIN P = (1.2 - 0. The junction temperature will be 37.6 x 0.556 ...
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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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DFN8 (3x3 mm) mechanical data mm. Dim. Min. Typ. A 0.80 0.90 A1 0.02 A2 0.70 A3 0.20 b 0.18 0.23 D 3.00 D2 2.23 2.38 E 3.00 E2 1.49 1.64 e 0.50 L 0.30 0.40 mils. Max. Min. Typ. ...
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PowerSO-8 mechanical data Dim. Min 0.00 A2 1.25 b 0.31 c 0.17 D 4.80 D1 2.24 E 5.80 E1 3. 0.25 L 0.40 k 0° ccc 14/17 mm. Typ. Max. Min. 1.70 0.15 0.00 ...
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Tape & reel QFNxx/DFNxx (3x3) mechanical data mm. Dim. Min. Typ 12 3.3 Bo 3 Max. Min. 180 13.2 0.504 0.795 2.362 14 inch. Typ. Max. ...
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Revision history Table 6. Document revision history Date Revision 10-Apr-2007 1 07-May-2007 2 24-May-2007 3 27-Sep-2007 4 02-Oct-2007 5 15-Feb-2008 6 05-May-2008 7 02-Jul-2008 8 16/17 Changes Initial release. PowerSO-8 mechanical data has been updated and the R value ...
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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. ...