LT1932ES6 Linear Technology, LT1932ES6 Datasheet
LT1932ES6
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LT1932ES6 Summary of contents
Page 1
... A for the entire circuit. The device’s 1.2MHz switching frequency permits the use of tiny, low profile chip inductors and capacitors to minimize footprint and cost in space-conscious portable applications. , LTC and LT are registered trademarks of Linear Technology Corporation. ThinSOT is a trademark of Linear Technology Corporation ...
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... R = 4.53k 1.2V SET 15mA LED 300mA SHDN SHDN Switch Off ORDER PART NUMBER TOP VIEW 6 V LT1932ES6 IN 5 SHDN 4 R SET S6 PART MARKING S6 PACKAGE LTST = 125 C, = 250 MIN TYP MAX 1.2 1.6 0.1 1.0 100 120 180 12.5 15 17.5 5 – 0.02 ...
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W U TYPICAL PERFOR A CE CHARACTERISTICS Switch Saturation Voltage (V CESAT 400 350 T = 125 C J 300 250 200 T = – 150 100 100 200 400 ...
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LT1932 CTIO S SW (Pin 1): Switch Pin. This is the collector of the internal NPN power switch. Minimize the metal trace area con- nected to this pin to minimize EMI. GND (Pin 2): Ground ...
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U U APPLICATIO S I FOR ATIO Inductor Selection Several inductors that work well with the LT1932 are listed in Table 1. Many different sizes and shapes are available. Consult each manufacturer for more detailed information and for their entire ...
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LT1932 U U APPLICATIO S I FOR ATIO Capacitor Selection Low ESR (equivalent series resistance) capacitors should be used at the output to minimize the output ripple voltage. Because they have an extremely low ESR and are available in very ...
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U U APPLICATIO S I FOR ATIO Open-Circuit Protection For applications where the string of LEDs can be discon- nected or could potentially become an open circuit, a zener diode can be added across the LEDs to protect the LT1932 ...
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... Figure 8 shows that without soft-start the input current reaches almost 600mA. Figure 9 shows that when the soft-start circuit is added, the input current has only a brief 300mA spike, and on average does not exceed 100mA. Burst Mode is a registered trademark of Linear Technology Corporation. LT1932 R SET 4 ...
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U U APPLICATIO S I FOR ATIO OUT 5V/DIV I IN 200mA/DIV 100 s/DIV Figure 8. Input Current at Start-Up Without Soft-Start Board Layout Considerations As with all switching regulators, careful attention must be paid ...
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LT1932 U TYPICAL APPLICATIO S Single Cell Driver for One White LED LT1932 5 C1 SHDN LED 4 GND SET 4 2 2.5V PWM 24.9k ...
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U TYPICAL APPLICATIO S 2-Cell Driver for Two White LEDs LT1932 5 C1 SHDN LED 4 GND SET 4 2 2.5V DC 60.4k DIMMING CONTROL ...
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LT1932 U TYPICAL APPLICATIO S 2-Cell Driver for Four White LEDs LT1932 PWM 5 SHDN LED DIMMING CONTROL R GND SET ...
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U TYPICAL APPLICATIO S Li-Ion Driver for Two White LEDs L1 6 2. LT1932 5 C1 SHDN LED 4 GND SET 4 3.3V PWM 31.6k DIMMING CONTROL R SET ...
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LT1932 U TYPICAL APPLICATIO S Li-Ion Driver for Four White LEDs L1 6 2. LT1932 PWM 5 SHDN LED DIMMING CONTROL R GND SET 4 R SET 1.50k ...
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... SC-74A (EIAJ) FOR ORIGINAL JEDEL MO-193 FOR THIN Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights. D1 ...
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... Output with Up to 100mA Output 100mA, Integrated LP Filter, MSOP8 125mA, Integrated 2-Bit DAC www.linear.com Efficiency 4. 2. TOTAL LED CURRENT (mA) 1932 TA16b Efficiency 4. 2. LED CURRENT (mA) 1932 TA12b Noise 80mA Output RMS LT/TP 1201 2K • PRINTED IN USA LINEAR TECHNOLOGY CORPORATION 2001 1932f ...