MAX1579ETG+T Maxim Integrated Products, MAX1579ETG+T Datasheet
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MAX1579ETG+T
Specifications of MAX1579ETG+T
Related parts for MAX1579ETG+T
MAX1579ETG+T Summary of contents
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... Denotes lead-free package. Ordering Information continued at end of data sheet. ________________________________________________________________ Maxim Integrated Products For pricing delivery, and ordering information please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. for Small TFT Displays ♦ Four Regulators in One Package ♦ ...
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Complete Bias and White LED Power Supplies for Small TFT Displays ABSOLUTE MAXIMUM RATINGS IN, CS, C1N, C2N, MAIN, ONBIAS CTRL to GND..................-0.3V to the lesser of + LX, OUT to GND .....................................................-0.3V to +37V COMP ...
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... OSCILLATOR Operating Frequency f BOOST PWM mode Minimum Duty Cycle Pulse skipping Maximum Duty Cycle CTRL = IN GND Dual Mode is a trademark of Maxim Integrated Products, Inc. _______________________________________________________________________________________ for Small TFT Displays = -40°C to +85°C, typical values are CONDITIONS = 0 to -100µ +25°C = +85°C ...
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Complete Bias and White LED Power Supplies for Small TFT Displays ELECTRICAL CHARACTERISTICS (continued) (Circuit of Figure 3V, CTRL = ONBIAS = IN PARAMETER N-CHANNEL SWITCH LX On-Resistance I = 190mA LX LX Leakage Current ...
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Complete Bias and White LED Power Supplies (Circuit of Figure 3.6V 20mA, 4 LEDs, CTRL = IN LED LED CURRENT vs. DIRECT-PWM DUTY CYCLE PWM 0 0 ...
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Complete Bias and White LED Power Supplies for Small TFT Displays (Circuit of Figure 3.6V 20mA, 4 LEDs, CTRL = IN LED MAIN OUTPUT LOAD REGULATION 0 -0.1 -0.2 -0.3 -0.4 -0.5 -0.6 ...
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Complete Bias and White LED Power Supplies PIN NAME Logic Input to Enable V 11 ONBIAS charge pumps. Connect to GND to disable the charge pumps. 12 GND Ground. Connect to PGND and the exposed pad directly under the IC. ...
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Complete Bias and White LED Power Supplies for Small TFT Displays IN BIAS GND COMP CTRL 170mV ONBIAS OSC PMP PMPB CD2 -2X INVERTING CHARGE PUMP CD1 NEG N 8 _______________________________________________________________________________________ 1MHz OSCILLATOR PWM CONTROL REF OSC TIMER SHUTDOWN CHARGE-PUMP ...
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Complete Bias and White LED Power Supplies Detailed Description Bias Power and UVLO The MAX1578/MAX1579 contain an LED driver boost converter and three charge pumps for LCD bias. The undervoltage-lockout (UVLO) feature disables the LED boost converter and the charge ...
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Complete Bias and White LED Power Supplies for Small TFT Displays The LED boost converter utilizes a soft-start function to eliminate inrush current during startup. Once the boost converter is enabled, LX begins switching at the mini- mum duty cycle ...
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Complete Bias and White LED Power Supplies Component Selection Use only ceramic capacitors with an X5R, X7R, or bet- ter dielectric. See Table 1 for a list of recommended components. Use low-ESR ceramic capacitors. Recommended val- ues for the capacitors ...
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Complete Bias and White LED Power Supplies for Small TFT Displays Table 1. Recommended Components for the Typical Application Circuit DESIGNATION DESCRIPTION 4.7µF, 6.3V X5R ceramic capacitors (0603) C1, C8 Murata GRM188R60J475KE19 0.1µF, 6.3V X5R ceramic capacitor (0402) C2 TDK ...
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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 ____________________ 13 © 2005 Maxim Integrated Products ...