TPS92611-Q1 Texas instruments

TPS92611-Q1

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TPS92611-Q1

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Описание

With LEDs being widely used in automotive applications, simple LED drivers are more and more popular. Compared to discrete solutions, a low-cost monolithic solution lowers system-level component counts and significantly improves current accuracy and reliability.The TPS92611-Q1 device is a simple single-channel high-side LED driver operating from an automotive car battery. It is a simple and elegant solution, with LED diagnostics, to deliver constant current for a single LED string. Its one-fails–all-fail feature is able to work together with other LED drivers, such as the TPS9261x-Q1, TPS9263x-Q1, and TPS9283x-Q1 devices, to address different requirements.

Qualified for Automotive Applications
AEC-Q100 Qualified With the Following Results:
- Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
- Device HBM ESD Classification Level H2
- Device CDM ESD Classification Level C3B
Functional safety capable
- Documentation available to aid functional safety system design
Single-Channel Constant-Current LED Driver With PWM Dimming
Wide Input-Voltage Range: 4.5 V–40 V
Constant Output Current, Adjustable by Sense Resistor
Precision Current Regulation, Tolerance ±4.6%
Maximum Current: 300 mA
Heat Sharing With External Resistor
Low Dropout Voltage (Current-Sense Voltage Drop Included)
- Maximum Dropout: 150 mV at 10 mA
- Maximum Dropout: 400 mV at 70 mA
- Maximum Dropout: 700 mV at 150 mA
- Maximum Dropout: 1.3 V at 300 mA
Diagnostics and Protection
- LED Open-Circuit and Short-Circuit Detection With Auto-Recovery
- Diagnostic-Enable With Adjustable Threshold for Low-Dropout Operation
- Fault Bus up to 15 Devices, Configurable As Either One-Fails–All-Fail or Only-Failed-Channel Off
- Low Quiescent Current and Fault-Mode Current (<250 µA per Device)
Operating Junction Temperature Range: –40°C to 150°C

Number of channels	1
Topology	Current Source
Rating	Automotive
TI functional safety category	Functional Safety-Capable
Operating temperature range (°C)	-40 to 125
Vin (min) (V)	4.5
Vin (max) (V)	40
Vout (min) (V)	0
Vout (max) (V)	40
Iout (max) (A)	0.3
Iq (typ) (mA)	0.2
Features	Enable/Shutdown, Fault Detection, Fault Diagnostic, LED Open Detection, LED Short to Ground Detection, Thermal shutdown