Rainbow-electronics MAX17061 User Manual

General DescriptionThe MAX17061 is a high-efficiency driver for white light-emitting diodes (LEDs). It is designed for large liquid-crystal displays (

MAX170618-String White LED Driver withSMBus for LCD Panel Applications10 _____________________________________________________________________________

MAX170618-String White LED Driver withSMBus for LCD Panel Applications________________________________________________________________________________

MAX17061The MAX17061 includes a 5V linear regulator that pro-vides the internal bias and gate drive for the step-upcontroller. When an external 5V is

MAX170618-String White LED Driver withSMBus for LCD Panel Applications________________________________________________________________________________

MAX17061The MAX17061 includes power-on reset (POR) andundervoltage lockout (UVLO) features. POR resets thefault latch and sets all the SMBus registers

Frequency SelectionA tri-level OSC input sets the internal oscillator frequen-cy for step-up converter, as shown in Table 1. High-fre-quency (1MHz) op

MAX17061Full-Scale LED Brightnessin DPWM Dimming ControlThe full-scale LED current in the DPWM dimming isdetermined by resistance from the ISET pin to

Overvoltage ProtectionThe SMBus interface can be used to adjust the dim-ming, as well as shut down the MAX17061. Before theMAX17061 receives a turn-on

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The list of ID values for vendors is shown in Table 3.Thermal ShutdownThe MAX17061 includes a thermal-protection circuit.When the local IC temperature

ABSOLUTE MAXIMUM RATINGSELECTRICAL CHARACTERISTICS(Circuit of Figure 1, VIN= 12V, CCCV= 0.022µF, RCCV= 5.1kΩ, VISET= VOSC= VDD= VCC, RFSET= 464kΩ, VPW

MAX17061To ensure the stable operation, the MAX17061 includesslope compensation, which sets the minimum inductorvalue. In continuous-conduction mode (

The equations used here include a constant LIR, whichis the ratio of the inductor peak-to-peak ripple currentto the average DC inductor current at the

MAX17061The peak-inductor current at minimum input voltage iscalculated as follows:Alternatively, choosing a DCM operating mode at 750kHzand estimatin

LED Selection and BiasThe series/parallel configuration of the LED load and thefull-scale bias current have a significant effect or regula-tor perform

MAX170614) Place the overvoltage detection divider resistors asclose as possible to the OV pin. The divider’s cen-ter trace should be kept short. Plac

MAX170618-String White LED Driver withSMBus for LCD Panel Applications________________________________________________________________________________

MAX170618-String White LED Driver withSMBus for LCD Panel ApplicationsMaxim cannot assume responsibility for use of any circuitry other than circuitry

MAX170618-String White LED Driver withSMBus for LCD Panel Applications________________________________________________________________________________

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MAX170618-String White LED Driver withSMBus for LCD Panel Applications________________________________________________________________________________

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MAX170618-String White LED Driver withSMBus for LCD Panel Applications________________________________________________________________________________

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MAX170618-String White LED Driver withSMBus for LCD Panel Applications________________________________________________________________________________