MAX16812ATI+T Maxim Integrated Products, MAX16812ATI+T Datasheet
MAX16812ATI+T
Specifications of MAX16812ATI+T
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MAX16812ATI+T Summary of contents
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... Architectural and Industrial Lighting Typical Application Circuit and Pin Configuration appear at end of data sheet. ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. o Integrated 76V, 0.2Ω (typ) Power MOSFET o 5 ...
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Integrated High-Voltage LED Driver with Analog and PWM Dimming Control ABSOLUTE MAXIMUM RATINGS (All voltages are referenced to AGND, unless otherwise noted.) SGND ....................................................................-0.3V to +0.3V IN, EN, LX, DIM ......................................................-0.3V to +80V L_REG, GT, DRV ......................................................-0.3V to +6V RT, ...
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Integrated High-Voltage LED Driver with Analog and PWM Dimming Control ELECTRICAL CHARACTERISTICS (continued 12V 3.3µ L_REG H_REG erwise noted. Typical values are +25°C.) A PARAMETER SYMBOL PWM COMPARATOR ...
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Integrated High-Voltage LED Driver with Analog and PWM Dimming Control ELECTRICAL CHARACTERISTICS (continued 12V 3.3µ L_REG H_REG unless otherwise noted. Typical values are at T PARAMETER SYMBOL HIGH-SIDE DIMMING LINEAR REGULATOR ...
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Integrated High-Voltage LED Driver with Analog and PWM Dimming Control ( 12V 3.3µ L_REG H_REG R vs. I DS(ON) LX 0.45 0. +125°C 0.35 A 0.30 0.25 0. ...
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Integrated High-Voltage LED Driver with Analog and PWM Dimming Control ( 12V 3.3µ L_REG H_REG EN UVLO THRESHOLD vs. TEMPERATURE 1.50 V FALLING EN 1.45 1.40 1.35 1.30 1.25 1.20 1.15 1.10 ...
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Integrated High-Voltage LED Driver with Analog and PWM Dimming Control PIN NAME 1 FB Low-Side Error Amplifier’s Inverting Input 2 COMP Low-Side Error Amplifier’s Output. Connect a compensation network from COMP to FB for stable operation. Reference Input ...
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Integrated High-Voltage LED Driver with Analog and PWM Dimming Control HV LDOH H_REG POR 3.88V LV IN PREG BG UVLO/ LDOL POR L_REG EN REF 1X RT OSC DIM DIM SIGNAL CMP 1.238V CMP TGRM 2μs PULSE LOW TO DISCHARGE ...
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Integrated High-Voltage LED Driver with Analog and PWM Dimming Control Detailed Description The MAX16812 is a current-mode PWM LED driver with an integrated 0.2Ω power MOSFET for use in dri- ving HB LEDs. By using two current regulation loops, 5% ...
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Integrated High-Voltage LED Driver with Analog and PWM Dimming Control Undervoltage Lockout The MAX16812 features an adjustable UVLO through the enable input (EN). Connect EN directly use the 5V default UVLO. Connect through a ...
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Integrated High-Voltage LED Driver with Analog and PWM Dimming Control High-Side Current-Sense Output (CS_OUT) A high-side transconductance amplifier converts the voltage across the LED current-sense resistor (R into an internal current output. This current flows through an internal resistor connected ...
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Integrated High-Voltage LED Driver with Analog and PWM Dimming Control The MAX16812 offers analog dimming of the LED cur- rent by allowing the application of an external voltage at REFI. The output current is proportional to the volt- age at ...
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Integrated High-Voltage LED Driver with Analog and PWM Dimming Control The overvoltage protection (OVP) comparator com- pares the voltage at OV with a 1.238V (typ) internal ref- erence. Use the following equation to calculate resistor values: ⎛ V OV_LIM = ...
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Integrated High-Voltage LED Driver with Analog and PWM Dimming Control V OUT I LED V DRV 10μs/div Figure 8. LED Current, Output Voltage, and DRV Waveforms when DIM Signal Goes Low V DIM 5V/div V DRV 2V/div 10μs/div Figure 9. ...
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Integrated High-Voltage LED Driver with Analog and PWM Dimming Control TO L_REG PIN OF MAX16812 Figure 12. Dimming MOSFET Protection Inductor Selection The minimum required inductance is a function of the operating frequency, the input-to-output voltage differ- ential and the ...
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Integrated High-Voltage LED Driver with Analog and PWM Dimming Control TGRM V Figure 13. Buck Configuration IN1 C C TGRM V Figure 14. Boost Configuration 16 ______________________________________________________________________________________ C OUT D ...
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Integrated High-Voltage LED Driver with Analog and PWM Dimming Control IN1 C L_REG R TGRM C TGRM VOUT Figure 15. SEPIC Configuration Output Capacitor The function of the output capacitor is to reduce the output ripple to ...
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Integrated High-Voltage LED Driver with Analog and PWM Dimming Control Layout Recommendations Typically, there are two sources of noise emission in a switching power supply: high di/dt loops and high dv/dt surfaces. For example, traces that carry the drain cur- ...
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Integrated High-Voltage LED Driver with Analog and PWM Dimming Control BUCK-BOOST CONFIGURATION IN1 RT C L_REG R TGRM C TGRM V OUT R R Pin Configuration TOP VIEW SRC 22 SRC ...
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Integrated High-Voltage LED Driver with Analog and PWM Dimming Control (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) 20 ______________________________________________________________________________________ Package Information PACKAGE OUTLINE, 16, ...
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... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 21 © 2007 Maxim Integrated Products ...