STCS2ASPR STMicroelectronics, STCS2ASPR Datasheet
STCS2ASPR
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STCS2ASPR
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STCS2ASPR Summary of contents
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... The main target is to replace discrete components Table 1. Device summary Order code STCS2ASPR July 2008 2 A max constant current LED driver 10 PowerSO-10 solution for driving LEDs in low voltage applications such giving benefits in terms of precision, integration and reliability ...
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Contents 1 Application diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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Application diagram Figure 1. Typical application diagram for 2 A LED current 4. 40V 4. 40V BAT46ZFILM BAT46ZFILM OFF OFF OFF OFF Load disconnection Load disconnection (Open ...
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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 connect 5 DRAIN Internal N-MOSFET drain Internal N-MOSFET ...
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Maximum ratings Table 3. Absolute maximum ratings Symbol V DC supply voltage CC DRAIN Drain pin SOURCE Source pin PWM, EN, DISC Logic pins SLOPE, FB Configuration pins ESD Human body model (all pins) (1) T Junction temperature J ...
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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 8/18 = 25°C Figure 6. 1000 1000 100 100 0.1 ...
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Figure 11 rise fall SLOPE Figure 13. Dimming operation: Rise SLOPE Figure 12. Turn-on time Figure 14. Dimming operation: Fall SLOPE 9/18 ...
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Detail description The STCS2A 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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Diagnostic When STCS2A 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 ...
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Application information 8.1 Reverse polarity protection STCS2A must be protected from reverse connection of the supply voltage. Since the current sunk from V pin is in the range of 450 µA a small diode connected protect ...
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DRAIN FB basing on this and on the thermal resistance and ambient temperature, the junction temperature can be calculated as thJA D A typical application could ...
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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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PowerSO-10 Mechanical Data mm. Dim. Min. Typ 3.40 A3 1.25 b 0.40 c 0.35 D 9.40 D1 7.40 E 13.80 E1 9.30 E2 7.20 E3 5.90 e 1.27 L 0.95 0° inch. Max. Min. Typ. 3.70 0.10 ...
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Tape & Reel PowerSO-10 Mechanical Data Dim. Min 12 14.9 Bo 9.9 Ko 4.15 Po 3.9 P 23.9 W 23.7 16/18 mm. Typ. Max. Min. 330 13.2 0.504 0.795 2.362 30.4 15.1 ...
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Revision history Table 6. Document revision history Date Revision 19-Feb-2008 1 28-May-2008 2 02-Jul-2008 3 Changes Initial release. Modified: Table 3 on page 5. Modified: Table 5 on page 6. 17/18 ...
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