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MAX8703 Datasheet

Part Number MAX8703
Manufacturers Maxim Integrated Products
Logo Maxim Integrated Products
Description Dual-Phase MOSFET Drivers
Datasheet MAX8703 DatasheetMAX8703 Datasheet (PDF)

  MAX8703   MAX8703
19-3357; Rev 0; 8/04 Dual-Phase MOSFET Drivers with Temperature Sensor General Description The MAX8702/MAX8703 dual-phase noninverting MOSFET drivers are designed to work with PWM controller ICs, such as the MAX8705/MAX8707, in notebook CPU core and other multiphase regulators. Applications can either step down directly from the battery voltage to create the core voltage, or step down from a low-voltage system supply. The single-stage conversion method allows the highest possible efficiency, while the 2-stage conversion at higher switching frequency provides the minimum possible physical size. Each MOSFET driver is capable of driving 3nF capacitive loads with only 19ns propagation delay and 8ns typical rise and fall times. Larger capacitive loads are allowable but result in longer propagation and transition times. Adaptive dead-time control helps prevent shootthrough currents and maximizes converter efficiency. The MAX8702/MAX8703 feature zero-crossing comparators on each channel. Whe.






Part Number MAX8709B
Manufacturers Maxim Integrated Products
Logo Maxim Integrated Products
Description High-Efficiency CCFL Backlight Controller
Datasheet MAX8703 DatasheetMAX8709B Datasheet (PDF)

  MAX8703   MAX8703
MAX8709B High-Efficiency CCFL Backlight Controller with SMBus Interface General Description The MAX8709B integrated backlight controller is optimized to drive cold-cathode fluorescent lamps (CCFLs) using a resonant full-bridge inverter architecture. The resonant operation maximizes striking capability and provides near-sinusoidal waveforms over the entire input range to improve CCFL lifetime. The controller operates over a wide input voltage range of 4.6V to 28V with high power-to-light efficiency. The device also includes safetyfeatures that effectively protect against many single-pointfault conditions including lamp-out and short-circuit faults. The MAX8709B achieves 10:1 dimming range.






Part Number MAX8707
Manufacturers Maxim Integrated Products
Logo Maxim Integrated Products
Description Fixed-Frequency Controller
Datasheet MAX8703 DatasheetMAX8707 Datasheet (PDF)

  MAX8703   MAX8703
19-3360; Rev 0; 8/04 Multiphase, Fixed-Frequency Controller for AMD Hammer CPU Core Power Supplies General Description The MAX8707 is a multiphase (3-/4-phase), interleaved, fixed-frequency, step-down controller for AMD Hammer CPU core supplies. Interleaved multiphase operation reduces the input ripple current and output voltage ripple while easing component selection and layout placement. The MAX8707 includes active voltage positioning with adjustable gain and offset, reducing power dissipation and bulk output-capacitance requirements. The MAX8707 is intended for two different notebook CPU core applications: stepping down the battery directly or stepping down the +5V system supply to creat.






Part Number MAX8702
Manufacturers Maxim Integrated Products
Logo Maxim Integrated Products
Description Dual-Phase MOSFET Drivers
Datasheet MAX8703 DatasheetMAX8702 Datasheet (PDF)

  MAX8703   MAX8703
19-3357; Rev 0; 8/04 Dual-Phase MOSFET Drivers with Temperature Sensor General Description The MAX8702/MAX8703 dual-phase noninverting MOSFET drivers are designed to work with PWM controller ICs, such as the MAX8705/MAX8707, in notebook CPU core and other multiphase regulators. Applications can either step down directly from the battery voltage to create the core voltage, or step down from a low-voltage system supply. The single-stage conversion method allows the highest possible efficiency, while the 2-stage conversion at higher switching frequency provides the minimum possible physical size. Each MOSFET driver is capable of driving 3nF capacitive loads with only 19ns propagation delay and.






Part Number MAX870
Manufacturers Maxim
Logo Maxim
Description Switched-Capacitor Voltage Inverters
Datasheet MAX8703 DatasheetMAX870 Datasheet (PDF)

  MAX8703   MAX8703
19-1240; Rev 0; 6/97 Switched-Capacitor Voltage Inverters _______________General Description The ultra-small MAX870/MAX871 monolithic, CMOS charge-pump inverters accept input voltages ranging from +1.4V to +5.5V. The MAX870 operates at 125kHz, and the MAX871 operates at 500kHz. Their high efficiency (90%) and low operating current (0.7mA for the MAX870) make these devices ideal for both battery-powered and board-level voltage-conversion applications. Oscillator control circuitry and four power MOSFET switches are included on-chip. A typical MAX870/ MAX871 application is generating a -5V supply from a +5V logic supply to power analog circuitry. Both parts come in a 5-pin SOT23-5 package and .






Dual-Phase MOSFET Drivers

19-3357; Rev 0; 8/04 Dual-Phase MOSFET Drivers with Temperature Sensor General Description The MAX8702/MAX8703 dual-phase noninverting MOSFET drivers are designed to work with PWM controller ICs, such as the MAX8705/MAX8707, in notebook CPU core and other multiphase regulators. Applications can either step down directly from the battery voltage to create the core voltage, or step down from a low-voltage system supply. The single-stage conversion method allows the highest possible efficiency, while the 2-stage conversion at higher switching frequency provides the minimum possible physical size. Each MOSFET driver is capable of driving 3nF capacitive loads with only 19ns propagation delay and 8ns typical rise and fall times. Larger capacitive loads are allowable but result in longer propagation and transition times. Adaptive dead-time control helps prevent shootthrough currents and maximizes converter efficiency. The MAX8702/MAX8703 feature zero-crossing comparators on each channel. When enabled, these comparators permit the drivers to be used in pulse-skipping operation, thereby saving power at light loads. A separate shutdown control is also included that disables all functions, drops quiescent current to 2µA, and sets DH low and DL high. The MAX8702 integrates a resistor-programmable temperature sensor. An open-drain output (DRHOT) signals to the system when the local die temperature exceeds the set temperature. The MAX8702/MAX8703 are available in a thermally-enhanced 20-p.



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