MAX8710 MAXIM [Maxim Integrated Products], MAX8710 Datasheet
MAX8710
Related parts for MAX8710
MAX8710 Summary of contents
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... Its rail-to-rail inputs and output maximize flexibility. The MAX8710/MAX8761 are available in a 24-pin thin QFN package, the MAX8711 is available in a 16-pin thin QFN package, and the MAX8712 is available in a 12-pin thin QFN package ...
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... OUTL (MAX8710/MAX8761) ………………………-0.3V to +28V OUTL (MAX8711/MAX8712) ………………………-0.3V to +14V POSB, OUTB, NEGB to GND .....................-0. DRVN, DRVP (MAX8710/MAX8761) .......-0. DRVN, DRVP (MAX8711/MAX8712)...............-0. SRC to GND .............................................................-0.3V to +30V GON, DRN to GND .......................................-0. DRN to GON .............................................................-30V to +30V Stresses beyond those listed under “ ...
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... ELECTRICAL CHARACTERISTICS (continued) (Circuit of Figure INL SUPCP +25°C, unless otherwise noted.) PARAMETER OPERATIONAL AMPLIFIER (MAX8710/MAX8711/MAX8761) SUPB Supply Operating Range SUPB Supply Current Input Offset Voltage Input Bias Current Common-Mode Input Range Common-Mode Rejection Ratio Open-Loop Gain Output Voltage Swing High ...
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... SHDN = low or fault tripped; DLP, FBP, FBN to GND Pin Discharge Switch On-Resistance SHDN = low or fault tripped; MODE, OUTL, OUTB to GND MAX8710, SHDN = low or fault trip; GON to GND POSITIVE GATE-DRIVER TIMING AND CONTROL SWITCHES (MAX8710/MAX8761) CTL Input Low Voltage CTL Input High Voltage ...
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... LINEAR REGULATOR Dropout Voltage FBL Regulation Voltage FBL Fault Trip Level FBL Line-Regulation Error Maximum OUTL Current OUTL Load Regulation OPERATIONAL AMPLIFIER (MAX8710/MAX8711/MAX8761) SUPB Supply Current Input Offset Voltage Output-Voltage-Swing High Output-Voltage-Swing Low Short-Circuit Current POSITIVE CHARGE-PUMP REGULATOR FBP Regulation Voltage ...
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... DRVN n-Channel On-Resistance SEQUENCE CONTROL SHDN Input Low Voltage SHDN Input High Voltage DLP Capacitor Charge Current DLP Turn-On Threshold POSITIVE GATE-DRIVER TIMING AND CONTROL SWITCHES (MAX8710/MAX8761) SRC Input Current DRN Input Current SRC Switch On-Resistance Mode 2 MODE Capacitor Charge Current ...
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... A 1.7 1 SUPPLY VOLTAGE (V) = 0°C to +85°C. Typical values are MAX8761 LINEAR-REGULATOR LOAD TRANSIENT RESPONSE MAX8710/11/12/61 toc06 10V A B 0mA 40µ 200mA/div OUTL AC-COUPLED, 20mV/div OUTL MAX8710/MAX8711/MAX8712 LINEAR- REGULATOR OVERCURRENT PROTECTION MAX8710/11/12/61 toc09 A B 10ms/div ...
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... Typical values are NEGATIVE CHARGE-PUMP LINE REGULATION 0.2 0 -0.2 -0.4 -0.6 -0.8 -1.0 100 INPUT VOLTAGE (V) MAX8710/MAX8761 SWITCH CONTROL FUNCTION (MODE 1) MAX8710/11/12/61 toc17 1.5nF GON C 0V 20µs/div 10V/div GON 5V/div MODE 5V/div ...
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... 5V/div POSB 5V/div OUTB _______________________________________________________________________________________ Low-Cost, Linear-Regulator LCD Panel Power Supplies Typical Operating Characteristics (continued) = 12V 10V 27V, T OUTL SUPB SRC MAX8710/MAX8711/MAX8761 SUPB SUPPLY CURRENT vs. SUPB VOLTAGE 1.0 0.8 0.6 0.4 0.2 BUFFER CONFIGURATION OUTB POSB SUPB VOLTAGE (V) ...
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... GON Low-Level Regulation Set-Point Input. Connect THR to the center of a resistive voltage-divider between REF and GND to set the V THR The actual level is 10 × See the Switch Control (MAX8710/MAX8761) THR section for details. Positive Charge-Pump Feedback Input. Connect FBP to the center of a resistive ...
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... GND to set the linear- regulator output voltage. Place the divider within 5mm of FBL. High-Voltage Switch-Control Block-Mode Selection Input and Timing-Adjustment Input. See the Switch Control (MAX8710/MAX8761) section for details. MODE is MODE high impedance when it is connected to REF. MODE is internally pulled to GND by a 1kΩ ...
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... OUTB MMBD4148SE (FAIRCHILD) 0.22µF 1µF GOFF R5 -5V/50mA 110kΩ 100kΩ 1% REF 0.47µF 51.1kΩ 5V/1mA 20kΩ SHDN Figure 1. MAX8710/MAX8761 Typical Operating Circuit 12 ______________________________________________________________________________________ IN GND 10.8V TO 13.2V 10µF 0.1µF GND IN N.C. INL OUTL (MAX8710/MAX8761) SUPB FBL R2 33.2kΩ POSB MAX8710 1% ...
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AV DD 0.1µF 120kΩ 100kΩ OUTB MMBD4148SE (FAIRCHILD) 1µF GOFF -5V/50mA R5 110kΩ 100kΩ 1% REF 0.47µF 5V/1mA SHDN Figure 2. MAX8711 Typical Operating Circuit ______________________________________________________________________________________ Low-Cost, Linear-Regulator LCD Panel Power Supplies GND IN 10.8V TO 13.2V 0.1µF ...
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... The input voltage range of the linear regulator is from 8V to 28V. The Typical Operating Circuits shown use a 12V input. The output voltage range of the linear regulator (OUTL 28V (MAX8710/MAX8761 13.2V (MAX8711/MAX8712). The linear-regulator output is used to generate the AV voltage, which is the analog supply DD rail for source-driver ICs in TFT LCD panels ...
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... REF GOFF VCOM CTL Figure 4. MAX8710/MAX8761 Functional Diagram ______________________________________________________________________________________ Low-Cost, Linear-Regulator LCD Panel Power Supplies IN INL MAX8710 GND MAX8761 REF REF OUTL LINEAR REG FBL FBN SUPCP OSC SHDN DRVN DRVP DLP SEQ POSB SUPB FBP OUTB NEGB ...
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... MOSFET (P1) and a low-side n-channel MOSFET (N1) to control the power transfer as shown in Figure 5. The MOSFETs switch at a constant frequency of 1.5MHz. During the first half-cycle, N1 turns on and allows MAX8710/MAX8761 or VOUTL, MAX8711/ SUPCP MAX8712) to charge up the flying capacitor C through diode D1. The amount of charge transferred from V ...
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... The soft-start period is 2.73ms (typ), and FBP fault detection is disabled during this period. The soft-start feature effectively limits the inrush current dur- ing startup. The MAX8710/MAX8711/MAX8712/ MAX8761 also monitor the FBP voltage for undervolt- age conditions continuously below 2V (typ) FBP for approximately 44ms, the device latches off ...
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... FBN and FBP are internally pulled to ground with 10Ω resistors, and DLP is pulled to GND through a 10Ω resistor, discharging the MAX8710 only, GON is pulled to GND DLP through a 1kΩ resistor. REF remains on in shutdown. Pulling SHDN high when REF is above 4.5V reactivates the IC. Output fault protection and thermal-overload protection can also turn off the IC’ ...
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... REF DLP Q4 0 REF REF 50µ MODE 1kΩ CTL Figure 6. MAX8710 High-Voltage Switch Control ______________________________________________________________________________________ Low-Cost, Linear-Regulator LCD Panel Power Supplies 5µA FAULT SHDN REF OK 1kΩ Q3 MAX8710 SRC Q1 GON DRN THR 19 ...
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Low-Cost, Linear-Regulator LCD Panel Power Supplies MAX8761 REF 50µ MODE 1kΩ CTL Figure 7. MAX8761 High-Voltage Switch Control 20 ______________________________________________________________________________________ FAULT REF SRC GON DRN THR ...
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... Because the regulator is able to limit the dip some- what, the circuit of Figure 1 uses a 4.7µF/10µF (MAX8710/MAX8761) output capacitor. The voltage rating and temperature characteristics of the output capacitor must also be considered. The output capacitance and equivalent load resistance determine the dominant pole ...
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... R1 is the upper resistor of the feedback divider and f is the unity gain frequency. The unity gain fre- u quency (f ) for the MAX8710/MAX8711/MAX8712 is u approximately 80kHz; for MAX8761, f 160kHz. The value of R1 was calculated in the Output- Voltage Selection section to set V for unity gain frequency (f ...
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... In some other applications, the load current may be much higher than the regulator’s guaranteed 300mA output current for the MAX8710/MAX8711/MAX8712 and 500mA for the MAX8761. The solution for such applications is to connect an exter- nal pnp transistor with the internal pnp transistor in a Darlington configuration as shown in Figure 8 ...
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... Minimize the size of the switching nodes (DRVP and DRVN). Keep the switching nodes away from feed- back nodes (FBL, FBP, and FBN) and the analog ground. Use DC traces as a shield if necessary. Refer to the MAX8710 evaluation kit for an example of proper board layout. 24 ______________________________________________________________________________________ ...
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For the latest package outline information go to www.maxim-ic.com/packages.) Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim ...