TI DRV591VFP

热电冷却器2.8V ~ 5.5V

Overview

The DRV591VFP is a high-efficiency high-current Power Amplifier ideal for driving a wide variety of thermoelectric cooler elements in systems powered from 2.8 to 5.5V. PWM operation and low output stage on-resistance significantly decrease power dissipation in the amplifier. It 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 amplifiers 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 DRV591VFP automatically resets. The PWM switching frequency may be set to 500 or 100kHz depending on system requirements. To eliminate external components, the gain is fixed at approximately 2.3V/V.

Features

Tray Package
Mainly used in Thermoelectric Cooler applications
Operating temperature: -40°C~85°C
8 Outputs

Surface Mount Mounting Type

Applications

There are a lot of Texas Instruments
DRV591VFPPower Management applications.

• Netbooks
• SmartPhones
• Portable Navigation Devices
• Portable Media Players
• Portable Systems
• Hand-Held Systems
• Space satellite point of load supply
• Communications payload
• Optical imaging payload
• Desktop PC