MAX16834AGP/VY+T Maxim Integrated, MAX16834AGP/VY+T Datasheet
MAX16834AGP/VY+T
Specifications of MAX16834AGP/VY+T
Related parts for MAX16834AGP/VY+T
MAX16834AGP/VY+T Summary of contents
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... Architectural and Decorative Lighting (MR16, M111) Functional Diagrams continued at end of data sheet. Spot and Ambient Lights UCSP is a trademark of Maxim Integrated Products, Inc. DC-DC Boost/Boost-Buck Converters For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com. ...
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... R LCV REF = +25°C.) A MIN TYP 4. ≤ 28V 6 0.65 80 ≤ 28V, 4 24V 2.2 HV ≤ 28V 3.625 3. 1.395 1.435 200 1 1.395 1.435 ) = 0.1Ω, SENSE+ MAX UNITS µA 7 300 mA 5 3.775 V mA 1.475 V mV µA 1.475 V Maxim Integrated ...
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... LOW-SIDE LED CURRENT-SENSE AMPLIFIER Input Offset Voltage Voltage Gain 3dB Bandwidth CURRENT ERROR AMPLIFIER (TRANSCONDUCTANCE AMPLIFIER) Transconductance Open-Loop DC Gain Input Offset Voltage COMP Voltage Range PWM COMPARATOR Input Offset Voltage Propagation Delay Maxim Integrated = 4.7µ PWMDIM SGND VCC SYMBOL CONDITIONS V ...
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... V = 9.5V for V = 8V. CLV HV Maxim Integrated = 0.1Ω, UNITS µ µs V µ Ω Ω Ω Ω µA °C °C ...
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... V IN 590 -40 -25 - TEMPERATURE (°C) Maxim Integrated Typical Operating Characteristics = 4.7µF, C SGND PWMDIM VCC V vs. SUPPLY VOLTAGE REF 3.80 3.75 3.70 3.65 3.60 3.55 3.50 110 125 ...
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... SC to SGND to generate a ramp signal for stable operation. = 100nF 100nF, R LCV REF NDRV RISE/FALL TIME vs. CAPACITANCE 12V RISE TIME 20 FALL TIME CAPACITANCE (nF) V vs. V CLV HV 5. 12V IN 5.09 5.08 5.07 5.06 5.05 5.04 5.03 5.02 5.01 5. (V) HV Pin Description FUNCTION = 0.1Ω, SENSE Maxim Integrated ...
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... MOSFET in series with the LED string. In addition to PWM dimming, the MAX16834 allows for analog dimming of LED current. Maxim Integrated Active-Low, Open-Drain Fault Indicator Output. See the Fault Indicator ( FLT ) section. Resistor-Programmable Switching Frequency Setting/Sync Control Input. Connect a resistor from RT/SYNC to SGND to set the switching frequency ...
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... REFHI 4.3V AND FLTB REF 0.3V SENSE AND NDRVB FLTB FLTA AND AND 128 TOSC ERROR REFHI REJECT 4096 TOSC DELAY HICCUP TIMER 5µs ERROR REJECT DELAY MAX16834 REF V CC NDRV PGND FLT CLV DIMOUT FLTB Maxim Integrated ...
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... PWM dimming. Connect the gate of the MOSFET to the output of the dimming driver, DIMOUT, for normal operation. The dimming driver is capable of sinking or sourcing up to 50mA of current. Maxim Integrated n-Channel MOSFET Switch Driver (NDRV) The MAX16834 drives an external n-channel switching MOSFET. NDRV swings between V ...
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... LV exceeds 1.435V. Use the following equation to set the desired overvoltage threshold: Overvoltage Protection (OVP+) Fault Indicator ( FLT ) Applications Information Setting the UVLO Threshold = + V 1 435 . UVEN Setting the Overvoltage Threshold = + V 1 435 . Maxim Integrated ...
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... Boost Configuration In the boost converter (Figure 2), the average inductor current varies with the line voltage. The maximum aver- age current occurs at the lowest line voltage. For the boost converter, the average inductor current is equal to the input current. Maxim Integrated LV FLT IN NDRV UVEN ...
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... the switching frequency in hertz are in volts, and ∆ amperes. Choose an FET L Peak Current-Sense Resistor (R8 Ω × the peak inductor current in amperes, and P of the inductor should SAT Output Capacitor INMIN Maxim Integrated ...
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... OUTRIPPLE of allowable ripple is for the ESR of the output capaci- tor. Based on this, the ESR of the output capacitor is given by: ∆ V OUTRIPPLE < ESR COUT ( IL where IL is the peak inductor current in amperes. P Maxim Integrated NDRV UVEN CS MAX16834 SC PWMDIM RT/SYNC DIMOUT V CC REF SENSE+ ...
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... R8 is the switch current-sense Selection of Power Semiconductors Switching MOSFET ( ) = + × LED D is the drain-to-source voltage in volts and LED INMAX D is the drain-to-source voltage in volts and DS 6 × × Maxim Integrated ...
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... TOT COND Maxim Integrated Use a Schottky diode as the rectifier (D1) for fast switching and to reduce power dissipation. The select- ed Schottky diode must have a voltage rating 20% above the maximum converter output voltage. The max- imum converter output voltage is V ration and V ⎞ ...
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... LED+, then the LED current will stay in regulation even during a short across the LED string. In this case, FLT does not assert itself during the short × × 2π hertz, and ohms. P2 Short-Circuit Protection Boost Configuration Boost-Buck Configuration Maxim Integrated ...
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... High-Power LED Driver with Integrated High-Side LED Current Sense and PWM Dimming MOSFET Driver 24V Figure 4. Boost LED Driver with Automotive Load Dump Protection Maxim Integrated LV FLT IN NDRV UVEN HV CS MAX16834 SC PWMDIM RT/SYNC DIMOUT V CC SENSE+ REF ...
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... Figure 5. High-Side Buck LED Driver NDRV UVEN MAX16834 PWMDIM RT/SYNC V CC DIMOUT REF SENSE+ OVP+ REFI CLV FLT COMP C7 SGND PGND OFF LED+ LEDs LED- R10 Maxim Integrated ...
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... High-Power LED Driver with Integrated High-Side LED Current Sense and PWM Dimming MOSFET Driver Figure 6. Boost DC-DC Converter Maxim Integrated FLT LV IN NDRV UVEN HV CS MAX16834 SC V REF PWMDIM RT/SYNC DIMOUT V CC SENSE+ REF OVP+ CLV COMP ...
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... Current Sense and PWM Dimming MOSFET Driver Figure 7. Boost-Buck DC-DC Converter NDRV UVEN SC CS MAX16834 V REF RT/SYNC PWMDIM V DIMOUT CC SENSE+ REF OVP+ N.C. CLV REFI COMP FLT SGND PGND R11 R9 R10 OUT Maxim Integrated ...
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... Keep the high-current paths short, especially at the ground terminals. This practice is essential for sta- ble, jitter-free operation. Keep switching loops short such that: a) The anode of D1 must be connected very close to the drain of the MOSFET Q1. Maxim Integrated MAX16834 b) The cathode of D1 must be connected very close OUT ...
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... SENSE+ 2 OVP+ 3 MAX16834 SGND 4 COMP 5 REF 6 REFI FLT 9 RT/SYNC 10 TSSOP Package Information PACKAGE OUTLINE TYPE CODE NO. T2044-3 21-0139 U20E+1 21-0108 G2044Y+1 21-0576 20 DIMOUT CLV NDRV 14 PGND PWMDIM 11 UVEN LAND PATTERN NO. 90-0037 90-0114 90-0360 Maxim Integrated ...
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... Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance. Maxim Integrated 160 Rio Robles, San Jose, CA 95134 USA 1-408-601-1000 © 2011 Maxim Integrated DESCRIPTION The Maxim logo and Maxim Integrated are trademarks of Maxim Integrated Products, Inc. MAX16834 Revision History PAGES CHANGED — ...