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DRV591VFPTIN/a5000avaiHigh-Efficiency PWM Power Driver
DRV591VFPG4TIN/a538avaiHigh-Efficiency PWM Power Driver 32-HLQFP -40 to 85
DRV591VFPRTIN/a5000avaiHigh-Efficiency PWM Power Driver


DRV591VFP ,High-Efficiency PWM Power Drivermaximum ratings” may cause permanent damage to the device. These are stress ratings only, andfuncti ..
DRV591VFPG4 ,High-Efficiency PWM Power Driver 32-HLQFP -40 to 85ELECTRICAL CHARACTERISTICS over operating free-air temperature range unless otherwise notedPARAME ..
DRV591VFPR ,High-Efficiency PWM Power DriverSLOS389A – NOVEMBER 2001– REVISED MAY 2002This integrated circuit can be damaged by ESD. TexasORDER ..
DRV592 ,High-Efficiency H-Bridge (Requires External PWM)FEATURES DESCRIPTIONThe DRV592 is a high-efficiency, high-current H-bridge ±3-A Maximum Output Cur ..
DRV592VFP ,High-Efficiency H-Bridge (Requires External PWM)SLOS390A – NOVEMBER 2001– REVISED MAY 2002Terminal FunctionsTERMINALI/O I/O DESCRIPTION DESCRIPTION ..
DRV592VFPG4 ,High-Efficiency H-Bridge (Requires External PWM) 32-HLQFP -40 to 85SLOS390A – NOVEMBER 2001– REVISED MAY 2002This integrated circuit can be damaged by ESD. TexasORDER ..
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DRV591VFP-DRV591VFPG4-DRV591VFPR
High-Efficiency PWM Power Driver
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SLOS389A – NOVEMBER 2001– REVISED MAY 2002
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FEATURES
±3-A Maximum Output Current Low Supply Voltage Operation: 2.8 V to 5.5 V High Efficiency Generates Less Heat Over-Current and Thermal Protection Fault Indicators for Over-Current, Thermal
and Under-Voltage Conditions
Two Selectable Switching Frequencies Internal or External Clock Sync PWM Scheme Optimized for EMI 9×9 mm PowerPAD Quad Flatpack
APPLICATIONS
Thermoelectric Cooler (TEC) Driver Laser Diode Biasing
DESCRIPTION

The DRV591 is a high-efficiency, high-current power
amplifier ideal for driving a wide variety of
thermoelectric cooler elements in systems powered
from 2.8 V to 5.5 V. PWM operation and low output
stage on-resistance significantly decrease power
dissipation in the amplifier.
The DRV591 is internally protected against thermal and
current overloads. Logic-level fault indicators signal
when the junction temperature has reached
approximately 130°C to allow for system-level
shutdown before the amplifier’s internal thermal
shutdown circuitry activates. The fault indicators also
signal when an over-current event has occurred. If the
over-current circuitry is tripped, the DRV591
automatically resets (see application information
section for more details).
The PWM switching frequency may be set to 500 kHz
or 100 kHz depending on system requirements. To
eliminate external components, the gain is fixed at
approximately 2.3 V/V.
1 kΩ
1 kΩ
DC Control
Voltage
VDD
To TEC or Laser
Diode Anode
To TEC or Laser
Diode Cathode
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