mic4802 Micrel Semiconductor, mic4802 Datasheet
mic4802
Related parts for mic4802
mic4802 Summary of contents
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... The brightness is controlled through an Ultra Fast PWM™ Control interface operating down to less than 1% duty cycle. The MIC4802 is available in the 8-pin SOIC Epad package with a junction temperature range of -40°C to +125°C. Datasheets and support documentation can be found on Micrel’ ...
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... LED1 driver input. Connect LED anode to VIN and cathode to this pin. All D1 pins must be connected to the LED. EPAD HS PAD Heat sink pad. Not internally connected. Connect to ground. January 2011 Temperature Range –40°C to +125°C 8-Pin Epad SOIC (ME) (Top View) 2 MIC4802 Package 8-Pin EPAD SOIC M9999-013111-B ...
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... ....................................... ........................ –40°C to +125°C J EPAD SOIC-8L (θ )..........................................41°C/W JA ≤ 125°C; unless noted. J Min Typ 747 830 280 4.1 0.01 1.2 0. 0 MIC4802 IN IN Max Units 913 mA 500 mV 5 µA 0 µA 60 µs µs µs µs µ M9999-013111-B ...
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... RSET (kΩ) RSET Voltage vs. LED Current 1.4 1.38 1.36 1.34 1.32 1.3 1.28 1.26 VIN = 5V 1.24 0 200 400 600 800 1000 1200 1400 LED CURRENT (mA) 4 MIC4802 Dropout Voltage vs. LED Current 500 450 400 350 300 250 200 150 100 50 VIN = 200 400 600 800 1000 1200 1400 ...
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... Micrel Inc. Functional Characteristics January 2011 5 MIC4802 M9999-013111-B ...
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... Micrel Inc. Functional Diagram Functional Description The MIC4802 is a single channel linear LED driver with a maximum 800mA current capability. The LED driver is designed to maintain proper current regulation with LED current accuracy of ±10%. The dropout is 280mV at 800mA. The low dropout of the linear drivers allows the ...
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... EN The EN pin is equivalent to the enable pin for the linear drivers on the MIC4802. It can also be used for dimming applying a PWM signal. See the PWM Dimming Interface in the Application Information section for details. Pulling the EN low for more than 40ms puts the MIC4802 into a low I sleep mode ...
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... WLED current response when a PWM signal is applied to the END pin (1) From the low I sleep mode higher PWM frequencies above 15kHz Q require a logic high enable signal for 60μs to first enable the MIC4802 . prior to PWM dimming LED Current vs. PWM Duty Cycle 900 ...
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... Figure 8. PWM Signal at 50% Duty Cycle (I Figure 9. PWM Signal at 80% Duty Cycle (I January 2011 Thermal Consideration The MIC4802 thermal considerations involve calculating the junction temperature based on the voltage drop across the package and the LED current. The voltage drop across the package is equal to the voltage at D1 with respect to ground times the LED current ...
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... Micrel Inc. MIC4802 Typical Application Circuit Bill of Materials Item Part Number C1608X5R0J225K 06036D225KAT2A C1 GRM188R60J225KE19D VJ0603G225KXYAT LED R42180 R CRCW06036K19FKEA SET U1 MIC4802YME Notes: 1. TDK: www.tdk.com 2. AVX: www.avx.com 3. Murata: www.murata.com 4. Vishay: www.vishay.com 5. Seoul Semi: http://www.acriche.com/en 6. Micrel, Inc.: www.micrel.com January 2011 Manufacturer (1) TDK (2) AVX Ceramic Capacitor, 2.2µ ...
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... Micrel Inc. Layout Recommendations January 2011 Top Layer Bottom Layer 11 MIC4802 M9999-013111-B ...
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... Purchaser’s use or sale of Micrel Products for use in life support appliances, devices or systems is a Purchaser’s own risk and Purchaser agrees to fully January 2011 8-Pin SOIC (ME) indemnify Micrel for any damages resulting from such use or sale. © 2010 Micrel, Incorporated. 12 http://www.micrel.com M9999-013111-B MIC4802 ...