TPS92662 Series
12-channel high-brightness LED matrix manager for automotive headlight systems
Manufacturer: Texas Instruments
Catalog(2 parts)
| Part | Supplier Device Package | Voltage - Output▲▼ | Operating Temperature▲▼ | Operating Temperature▲▼ | Qualification | Dimming | Grade | Mounting Type | Internal Switch(s)▲▼ | Number of Outputs▲▼ | Voltage - Supply (Min)▲▼ | Type | Package / Case | Topology |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
48-HTQFP (7x7) | 62 V | -40 °C | 125 °C | AEC-Q100 | PWM | Automotive | Surface Mount | 12 ul | 4.5 V | DC DC Regulator | 48-PowerTQFP | |||
Texas Instruments TPS92662AQPHPRQ1LED Driver IC 1 Output DC DC Regulator Step-Down (Buck), Step-Up (Boost) PWM Dimming 48-HTQFP (7x7) | 48-HTQFP (7x7) | -40 °C | 125 °C | AEC-Q100 | PWM | Automotive | Surface Mount | 1 ul | 4.5 V | DC DC Regulator | 48-PowerTQFP | Step-Down (Buck), Step-Up (Boost) |
Key Features
• AEC-Q100 qualified for automotive applicationsGrade 1: –40°C to 125°C ambient operating temperatureDevice HBM classification level H1CDevice CDM classification level C5Input voltage range: 4.5 V to 60 V12 Integrated bypass switchesFour sub-strings of three series switches20-V maximum across switch62-V maximum switch to groundMulti-drop UART communication interfaceUp to 31 addressable devicesCompatible with CAN physical layerMinimum number of wires in cable harnessEight-bit ADC with two MUXed inputsCrystal oscillator driverExternal EEPROM I2C interfaceProgrammable 10-bit PWM dimmingIndividual phase shift and pulse widthDevice-to-device synchronizationLED open and short detection and protectionAEC-Q100 qualified for automotive applicationsGrade 1: –40°C to 125°C ambient operating temperatureDevice HBM classification level H1CDevice CDM classification level C5Input voltage range: 4.5 V to 60 V12 Integrated bypass switchesFour sub-strings of three series switches20-V maximum across switch62-V maximum switch to groundMulti-drop UART communication interfaceUp to 31 addressable devicesCompatible with CAN physical layerMinimum number of wires in cable harnessEight-bit ADC with two MUXed inputsCrystal oscillator driverExternal EEPROM I2C interfaceProgrammable 10-bit PWM dimmingIndividual phase shift and pulse widthDevice-to-device synchronizationLED open and short detection and protection
Description
AI
The TPS92662-Q1 LED matrix manager device enables fully dynamic adaptive lighting solutions by providing individual pixel-level LED control.
The device includes four sub-strings of three series-connected integrated switches for bypassing individual LEDs. The individual sub-strings allow the device to accept either single or multiple current sources. It also allows paralleling up to four switches for bypassing high current LEDs.
A master microcontroller is used to control and manage the TPS92662-Q1 devices via a multi-drop universal asynchronous receiver transmitter (UART) serial interface. The serial interface supports the use of CAN transceivers for a more robust physical layer. The I2C communication interface can be used to read from and write to an external EEPROM that can store system calibration data.
An on-board 8-bit ADC with two multiplexed inputs can be used for system temperature compensation and used to measure a binning value which allows for LED binning and coding.
The internal charge pump rail supplies the gate drive voltage for the LED bypass switches. The low on-resistance (RDS(on)) of the bypass switch minimizes conduction loss and power dissipation.
The phase shift and pulse width for each individual LED in the string are programmable. The device uses an internal register to adjust the PWM frequency. Multiple devices can be synchronized. The switch transitions during PWM dimming operation have a programmable slew rate to mitigate EMI concerns.
The device features open LED protection with programmable threshold. The serial interface reports open LED or short LED faults.
The TPS92662-Q1 LED matrix manager device enables fully dynamic adaptive lighting solutions by providing individual pixel-level LED control.
The device includes four sub-strings of three series-connected integrated switches for bypassing individual LEDs. The individual sub-strings allow the device to accept either single or multiple current sources. It also allows paralleling up to four switches for bypassing high current LEDs.
A master microcontroller is used to control and manage the TPS92662-Q1 devices via a multi-drop universal asynchronous receiver transmitter (UART) serial interface. The serial interface supports the use of CAN transceivers for a more robust physical layer. The I2C communication interface can be used to read from and write to an external EEPROM that can store system calibration data.
An on-board 8-bit ADC with two multiplexed inputs can be used for system temperature compensation and used to measure a binning value which allows for LED binning and coding.
The internal charge pump rail supplies the gate drive voltage for the LED bypass switches. The low on-resistance (RDS(on)) of the bypass switch minimizes conduction loss and power dissipation.
The phase shift and pulse width for each individual LED in the string are programmable. The device uses an internal register to adjust the PWM frequency. Multiple devices can be synchronized. The switch transitions during PWM dimming operation have a programmable slew rate to mitigate EMI concerns.
The device features open LED protection with programmable threshold. The serial interface reports open LED or short LED faults.