TPS92390 Series
Boost/SEPIC high dimming performance LED driver with four 200-mA channels
Manufacturer: Texas Instruments
Catalog(1 parts)
| Part | Mounting Type | Type | Dimming | Frequency▲▼ | Frequency▲▼ | Number of Outputs▲▼ | Operating Temperature▲▼ | Operating Temperature▲▼ | Topology | Internal Switch(s)▲▼ | Voltage - Supply (Max)▲▼ | Package / Case | Supplier Device Package | Voltage - Output▲▼ | Voltage - Output▲▼ | Voltage - Supply (Min)▲▼ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments TPS92390RHBRLED Driver IC 4 Output DC DC Controller SEPIC, Step-Up (Boost) Analog, PWM Dimming 32-VQFN (5x5) | Surface Mount | DC DC Controller | Analog, PWM | 100000 Hz | 2200000 Hz | 4 ul | -40 °C | 125 °C | SEPIC, Step-Up (Boost) | 5.5 V | 32-VFQFN Exposed Pad | 32-VQFN (5x5) | 0 V | 48 V | 3 V |
Key Features
• Input voltage operating range 3 V to 48 VFour high-precision current sinksUp to 200-mA DC current for each current sinkCurrent matching 1% (typical)Dimming ratio 32 000:1 using 152-Hz LED output PWM frequencyUp to 16-bit LED dimming resolution with I2C, or PWM input8 Configurable LED strings configurationAuto-phase shift PWM dimming12-bit Analog dimmingSwitching frequency 100 kHz to 2.2 MHzBoost spread spectrum for reduced EMIBoost sync input to set boost switching frequency from an external clockUp to 48-V VOUTboost or SEPIC DC/DC controllerSwitching frequency 100 kHz to 2.2 MHzBoost spread spectrum for reduced EMIBoost sync input to set boost switching frequency from an external clockExtensive fault diagnosticsInput voltage operating range 3 V to 48 VFour high-precision current sinksUp to 200-mA DC current for each current sinkCurrent matching 1% (typical)Dimming ratio 32 000:1 using 152-Hz LED output PWM frequencyUp to 16-bit LED dimming resolution with I2C, or PWM input8 Configurable LED strings configurationAuto-phase shift PWM dimming12-bit Analog dimmingSwitching frequency 100 kHz to 2.2 MHzBoost spread spectrum for reduced EMIBoost sync input to set boost switching frequency from an external clockUp to 48-V VOUTboost or SEPIC DC/DC controllerSwitching frequency 100 kHz to 2.2 MHzBoost spread spectrum for reduced EMIBoost sync input to set boost switching frequency from an external clockExtensive fault diagnostics
Description
AI
The TPS92390 is an automotive high-efficiency LED driver with boost controller. The Four high-precision current sinks support phase shifting that is automatically adjusted based on the number of channels in use. LED brightness can be controlled globally through the I²C interface or PWM input.
The boost controller has adaptive output voltage control based on the headroom voltages of the LED current sinks. This feature minimizes the power consumption by adjusting the boost voltage to the lowest sufficient level in all conditions. A wide-range adjustable frequency allows the TPS92390 to avoid disturbance for AM radio band.
The TPS92390 supports built-in hybrid PWM dimming and analog current dimming, which reduces EMI, extends the LED lifetime, and increases the total optical efficiency.
The TPS92390 is an automotive high-efficiency LED driver with boost controller. The Four high-precision current sinks support phase shifting that is automatically adjusted based on the number of channels in use. LED brightness can be controlled globally through the I²C interface or PWM input.
The boost controller has adaptive output voltage control based on the headroom voltages of the LED current sinks. This feature minimizes the power consumption by adjusting the boost voltage to the lowest sufficient level in all conditions. A wide-range adjustable frequency allows the TPS92390 to avoid disturbance for AM radio band.
The TPS92390 supports built-in hybrid PWM dimming and analog current dimming, which reduces EMI, extends the LED lifetime, and increases the total optical efficiency.