TPS92613-Q1 Texas instruments

TPS92613-Q1

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TPS92613-Q1

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Описание

With LEDs being widely used in automotive applications, simple LED drivers are more and more popular. Comparing to discrete solutions, a low-cost monolithic solution lowers system-level component count and significantly improves current accuracy and reliability.The TPS92613-Q1 device is a single-channel, high-side LED driver operating from an automotive car battery. It is a simple, yet elegant, solution to deliver constant current for a single LED string with full LED diagnostics. The one-fails–all-fail feature is able to work together with other LED drivers, such as the TPS9261x-Q1, TPS9263x-Q1, and TPS92830-Q1 devices, to address different requirements.

AEC-Q100-qualified for automotive applications:
- Temperature grade 1: –40°C to +125°C, T_A
Functional safety capable
- Documentation available to aid functional safety system design
Wide input voltage range: 4.5 V to 40 V
Low quiescent and low fault-mode current: typical 200 µA
Single high-precision current regulation:
- ±4.6% Accuracy over full junction temperature range
- Constant current adjustable by external sense resistor
- Up to 600 mA maximum current
- Brightness control by input PWM duty cycle
Heat sharing with external resistor
Low dropout voltage (sense-resistor 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 (N-1)
- Thermal shutdown
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)	0.6
Iq (typ) (mA)	0.2
Features	Enable/Shutdown, Fault Detection, Fault Diagnostic, LED Open Detection, LED Short to Ground Detection, Thermal shutdown