CAT4101 ONSEMI | Alldatasheet

Document overview

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Technical content

Features

  • Accurate 1 A Current Sink
  • Up to 25 V Operation on LED Pin
  • Low Dropout 500 mV at 1 A
  • LED Current Set by External Resistor
  • High Resolution PWM Dimming via EN/PWM
  • “Zero” Current Shutdown Mode
  • Thermal Shutdown Protection
  • TO−263 5−lead Package
  • These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS Compliant

Applications

  • High Power LED up to 1 A
  • Architectural and General Lighting
  • Automotive Lighting

Figure 1. Typical Application Circuit

3 V to 25 V

ORDERING INFORMATION

CAT4101TV−T75 (Note 1) TO−263 (Pb−Free) 750/ Tape & Reel 1. Lead Finish Matte −Tin CAT4101TV 3LYMXXXXA EN/PWM VIN GND RSET LED TAB

Table 1. ABSOLUTE MAXIMUM RATINGS Table 2. RECOMMENDED OPERATING CONDITIONS NOTE: Typical application circuit with external components is shown on page 1. Table 3. ELECTRICAL OPERATING CHARACTERISTICS (Min and Max values in bold are over recommended operating

Table 4. RECOMMENDED EN/PWM TIMING Figure 2. CAT4101 EN/PWM Timing dimming LED using a PWM signal. supported for duty cycles greater than 10%. small duty cycles, the device may enter shutdown mode. PS is very short, in the range of 1 /C0109s. (typical) when EN/PWM is held low.

Table 5. PIN DESCRIPTIONS EN/PWM 1 Device enable (active high) and PWM control. VIN 2 Device supply input, connect to battery or supply. RSET 4 A resistor connected between this pin and ground sets the LED current. LED 5 Bottom LED cathode terminal. TAB – Connect TAB to the Ground plane. sink will automatically be disabled. LED current is set at a gain of 400 times the current in RSET. EN/PWM pin must be held low for 5 ms typical. this pin is regulated to 1.2 V . connected to the ground plane on the PCB. and connected to the ground plane.

Figure 15. CAT4101 Functional Block Diagram current in 100 mA increments. CAT4101 devices can be connected in parallel. strings of high power LEDs from a high voltage source. Table 6. RSET RESISTOR SETTINGS

http://onsemi.com

Application Information

The circuit shown in Figure 16 shows how to power three LEDs in series from a single 12 V supply using the CAT4101. The CAT4101 can not be driven directly from

12 V , three components are needed to create a lower voltage

for the VIN pin (below 5.5 V). Resistor R2 and zener diode D provide a regulated voltage while the quiescent current runs through the N−Channel transistor M. Suitable parts for this circuit are the ON Semiconductor MM3Z6V2 zener diode and the 2N7002L N −channel transistor (SOT23 package). Figure 16. Single Supply Driving Three LEDs spreading”, the resulting /C0113JA is about 30°C/W. connection to the GND pin of the CAT4101. Figure 17. CAT4101 Recommended Layout

http://onsemi.com PACKAGE DIMENSIONS TO−263, 5 Lead CASE 221AE−01 ISSUE O be c END VIEW BOTTOM VIEWTOP VIEW PIN#1 ID L θ D EA H Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC standard TO-263. MAX NOMMINSYMBOL A b c D E e H L /C0113 4.20 0.00 0.60 0.33 1.15 8.40 6.86 9.80 14.61 1.78

1.70 BSC

4.80 0.25 0.88 0.50 1.60 9.60 10.67 15.87 2.79 1.67

http://onsemi.com Example of Ordering Information (Note 4) Prefix Device # Suffix Company ID CAT 4101 Product Number 4101 T75 T: Tape & Reel 75: 750 / Reel Tape & Reel (Note 6) (Optional) TV− Package TV: TO−263 2. All packages are RoHS −compliant (Lead−free, Halogen−free). 3. The standard plated finish is Matte −Tin. 4. The device used in the above example is a CAT4101TV −T75 (TO−263, Tape & Reel, 750/Reel). 5. For additional temperature options, please contact your nearest ON Semiconductor Sales office. 6. For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, direct ly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. CAT4101/D PUBLICATION ORDERING INFORMATION N. American Technical Support: 800−282−9855 Toll Free USA/Canada Europe, Middle East and Africa Technical Support: Phone: 421 33 790 2910 Japan Customer Focus Center Phone: 81−3−5773−3850 LITERATURE FULFILLMENT: Literature Distribution Center for ON Semiconductor P.O. Box 5163, Denver, Colorado 80217 USA Phone: 303−675−2175 or 800−344−3860 Toll Free USA/Canada Fax: 303−675−2176 or 800−344−3867 Toll Free USA/Canada Email: orderlit@onsemi.com ON Semiconductor Website: www.onsemi.com Order Literature: http://www.onsemi.com/orderlit For additional information, please contact your local Sales Representative