MP3304 MPS, MP3304 Datasheet
MP3304
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MP3304 Summary of contents
Page 1
... PWM dimming audible noise. The MP3304 is turned off if an over-voltage condition is present due to an open circuit condition. MP3304 also includes under-voltage lockout, current limiting and thermal overload protection preventing damage in the event of an output overload. ...
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... MP3304 –36V, 1.3A, STEP-UP WHITE LED DRIVER WITH HIGH FREQUENCY TRUE PWM DIMMING Over Voltage Part Number* Protection MP3304ADD** 38V 26V MP3304BDD** 20V MP3304CDD *For Tape & Reel, add suffix –Z (eg. MP3304 x DD-Z). For RoHS compliant packaging, add suffix –LF (eg. MP3304 xDD–LF–Z) ABSOLUTE MAXIMUM RATINGS SW Pin, LED Pin..........................– ...
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... MP3304 –36V, 1.3A, STEP-UP WHITE LED DRIVER WITH HIGH FREQUENCY TRUE PWM DIMMING ELECTRICAL CHARACTERISTICS 5V +25°C, unless otherwise noted Parameters Operating Input Voltage Supply Current (Shutdown) Supply Current (Quiescent) Switching Frequency Maximum Duty Cycle Under Voltage Lockout IN Under Voltage Lockout ...
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... MP3304 –36V, 1.3A, STEP-UP WHITE LED DRIVER WITH HIGH FREQUENCY TRUE PWM DIMMING PIN FUNCTIONS Pin # Name Pin Function Power Switch Output the drain of the internal MOSFET switch. Connect the 1 SW power inductor and output rectifier to SW. SW can swing between GND and 36V (MP3304A), 24V (MP3304B) or 18V (MP3304C) ...
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... MP3304 –36V, 1.3A, STEP-UP WHITE LED DRIVER WITH HIGH FREQUENCY TRUE PWM DIMMING TYPICAL PERFORMANCE CHARACTERISTICS 200mA, 3WLEDs 10Strings, unless otherwise noted. IN LED V vs. Efficiency IN 100 3.5 4 4.5 5 5.5 6 6.5 V (V) IN Enable Startup SW 10V/div EN 2V/div V OUT 2V/div I LED 100mA/div Open Load Protection ...
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... MP3304 –36V, 1.3A, STEP-UP WHITE LED DRIVER WITH HIGH FREQUENCY TRUE PWM DIMMING OPERATION The MP3304 uses a constant frequency, peak current mode boost regulator architecture to regulate the series string of white LEDs. The operation of the MP3304 can be understood by referring to the block diagram of Figure 1. ...
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... MP3304 –36V, 1.3A, STEP-UP WHITE LED DRIVER WITH HIGH FREQUENCY TRUE PWM DIMMING APPLICATION INFORMATION Enable/ Dimming Control Figure 2—Circuit for Driving 10 Strings of 3 WLEDs A typical application circuit can be seen in Figure 2. The 10 strings of 3 white LEDs can be driven from a 5V voltage at an output current of 200mA. ...
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... MP3304 –36V, 1.3A, STEP-UP WHITE LED DRIVER WITH HIGH FREQUENCY TRUE PWM DIMMING Layout Considerations Careful attention must be paid to the PCB board layout and components placement. Proper layout of the high frequency switching path is critical to prevent noise and electromagnetic interference problems. The loop of MP3304 SW to GND pin, ...
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... MP3304 –36V, 1.3A, STEP-UP WHITE LED DRIVER WITH HIGH FREQUENCY TRUE PWM DIMMING TYPICAL APPLICATION CIRCUITS 10uF IN Enable/ EN Dimming Control GND Figure 4 — Driving 30 WLEDs (3 WLEDs in Series and 10 Strings Paralleled) with 5V Input Voltage VIN 4.7uF 4.7uF JP1 16V 16V ...
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... MP3304 –36V, 1.3A, STEP-UP WHITE LED DRIVER WITH HIGH FREQUENCY TRUE PWM DIMMING TYPICAL APPLICATION CIRCUITS VIN 3.3V -18V C1 10uF 25V 7.5 D2 5.6V ZENER Optional Bias Circuit EN GND Figure 6 — Driving 27 WLEDs (9 WLEDs in Series and 3 Strings Paralleled) with 3.3V-18V Input Voltage In order to improve the MOSFET on-resistance at low input voltage and make the chip compatible for high input voltage, the additional bias circuit should be used ...
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... MP3304 –36V, 1.3A, STEP-UP WHITE LED DRIVER WITH HIGH FREQUENCY TRUE PWM DIMMING TYPICAL APPLICATION CIRCUITS VIN 16V C2 16V EN GND Figure 8 — Driving 10 WLEDs in Series with 5V Input Voltage MP3304 Rev. 0.91 4/19/2010 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. (continued ...
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... MP3304 –36V, 1.3A, STEP-UP WHITE LED DRIVER WITH HIGH FREQUENCY TRUE PWM DIMMING PACKAGE INFORMATION 2.90 3.10 PIN 1 ID MARKING PIN 1 ID INDEX AREA TOP VIEW 0.20 REF SIDE VIEW 2.90 0.70 1.70 0.25 0.50 RECOMMENDED LAND PATTERN NOTICE: The information in this document is subject to change without notice. Users should warrant and guarantee that third party Intellectual Property rights are not infringed upon when integrating MPS products into any application ...