CAT4240TD-GT3 ON Semiconductor, CAT4240TD-GT3 Datasheet
CAT4240TD-GT3
Specifications of CAT4240TD-GT3
CAT4240TD-GT3TR
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CAT4240TD-GT3 Summary of contents
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... GPS Navigation Systems • Portable Media Players • Handheld Devices, Digital Cameras VIN 5 V L1: Sumida CDRH6D28−470 D1: Central CMSH1−40 (rated 40 V) © Semiconductor Components Industries, LLC, 2010 February, 2010 − Rev. 3 CAT4240TD−GT3 * NiPdAu Plated Finish 4.7 mF/ μF/ VIN C3 CAT4240 1 μ ...
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Table 1. ABSOLUTE MAXIMUM RATINGS Parameters voltage IN SHDN voltage SW voltage Storage Temperature Range Junction Temperature Range Lead Temperature Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above ...
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200 150 100 50 3.0 3.5 4.0 4.5 INPUT VOLTAGE (V) Figure 2. Quiescent Current vs. V (Not Switching) 303 302 301 300 299 ...
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350 RSET = 1 W VOUT = 19.5 V 300 250 200 RSET = 2 W VOUT = 18.8 V 150 100 INDUCTOR ...
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500 400 VOUT = 20 V 300 VOUT = 30 V 200 100 INDUCTOR VOLTAGE (V) Figure 14. Maximum Output Current 1200 1100 ...
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Pin Description VIN is the supply input for the internal logic. The device is compatible with supply voltages down to 2.8 V and recommended that a small bypass ceramic capacitor (4.7 mF) be placed ...
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Device Operation The CAT4240 is a fixed frequency (1 MHz), low noise, inductive boost converter that provides a constant current with excellent line and load regulation. The device uses a high-voltage CMOS power switch between the SW pin and ground ...
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Open LED Protection In the event of an “Open LED” fault condition, the CAT4240 will continue to boost the output voltage with maximum power until the output voltage reaches approximately 40 V. Once the output exceeds this level, the internal ...
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Dimming Control There are several methods available to control the LED brightness. PWM Signal on the SHDN Pin LED brightness dimming can be done by applying a PWM signal to the SHDN input. The LED current is repetitively turned on ...
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Board Layout The CAT4240 is a high−frequency switching regulator. The traces that carry the high−frequency switching current have to be carefully laid out on the board in order to minimize EMI, ripple and noise in general. The thicker lines on ...
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TOP VIEW SIDE VIEW Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC MO-193. PACKAGE DIMENSIONS TSOT−23, 5 LEAD CASE 419AE−01 ISSUE O SYMBOL MIN A A1 0.01 A2 ...
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... All packages are RoHS−compliant (Lead−free, Halogen−free). 3. The standard lead finish is NiPdAu. 4. The device used in the above example is a CAT4240TD−GT3 (TSOT−23, NiPdAu, Tape & Reel, 3,000/Reel). 5. For additional package and temperature options, please contact your nearest ON Semiconductor Sales office. ...