Texas Instruments (DRV591VFP) Laser Diode Driver, Thermoelectric Cooler

Product OverviewThe DRV591VFP is a high-efficiency high-current Power Amplifier ideal fordriving a wide variety of thermoelectric cooler elements in systems powered from2.8 to 5.5V. PWM operation and low output stage on-resistance significantlydecrease power dissipation in the amplifier. It is internally protected againstthermal and current overloads. Logic-level fault indicators signal when thejunction temperature has reached approximately 130°C to allow for system-levelshutdown before the amplifiers internal thermal shutdown circuitry activates.The fault indicators also signal when an over-current event has occurred. If theover-current circuitry is tripped, the DRV591 automatically resets. The PWMswitching frequency may be set to 500 or 100kHz depending on systemrequirements. To eliminate external components, the gain is fixed atapproximately 2.3V/V.High efficiency generates less heatOvercurrent and thermal protectionFault indicators for overcurrent, thermal and under-voltage conditionsTwo selectable switching frequenciesInternal or external clock syncPWM scheme optimized for EMI9x9mm PowerPAD quad flatpack±3A Maximum output currentGreen product and no Sb/BrApplicationsHVAC, Signal ProcessingProduct InformationLaser Driver Type: Thermoelectric CoolerDriver Case Style: HLQFPNo. of Pins: 32PinsSupply Voltage Min: 2.8VSupply Voltage Max: 5.5VProduct Range: -MSL: MSL 3 - 168 hours