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ISL6308/ISL6308A pdf datasheet
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格式:rar |
大小:333 |
2009-01-19
KANA
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Three-Phase Buck PWM Controller with
High Current Integrated MOSFET Drivers
The ISL6308A is a three-phase PWM control IC with
integrated MOSFET drivers. It provides a precision voltage
regulation system for multiple applications including, but not
limited to, high current low voltage point-of-load converters,
embedded applications and other general purpose low
voltage medium to high current applications.The integration
of power MOSFET drivers into the controller IC marks a
departure from the separate PWM controller and driver
configuration of previous multi-phase product families. By
reducing the number of external parts, this integration allows
for a cost and space saving power management solution.
Output voltage can be programmed using the on-chip DAC
or an external precision reference. A two bit code programs
the DAC reference to one of 4 possible values (0.6V,
0.9V,1.2V and 1.5V). A unity gain, differential amplifier is
provided for remote voltage sensing, compensating for any
potential difference between remote and local grounds. The
output voltage can also be offset through the use of single
external resistor. An optional droop function is also
implemented and can be disabled for applications having
less stringent output voltage variation requirements or
experiencing less severe step loads.
High Current Integrated MOSFET Drivers
The ISL6308A is a three-phase PWM control IC with
integrated MOSFET drivers. It provides a precision voltage
regulation system for multiple applications including, but not
limited to, high current low voltage point-of-load converters,
embedded applications and other general purpose low
voltage medium to high current applications.The integration
of power MOSFET drivers into the controller IC marks a
departure from the separate PWM controller and driver
configuration of previous multi-phase product families. By
reducing the number of external parts, this integration allows
for a cost and space saving power management solution.
Output voltage can be programmed using the on-chip DAC
or an external precision reference. A two bit code programs
the DAC reference to one of 4 possible values (0.6V,
0.9V,1.2V and 1.5V). A unity gain, differential amplifier is
provided for remote voltage sensing, compensating for any
potential difference between remote and local grounds. The
output voltage can also be offset through the use of single
external resistor. An optional droop function is also
implemented and can be disabled for applications having
less stringent output voltage variation requirements or
experiencing less severe step loads.
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