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汽車 LED 驅動器

TPS929240-Q1

現行

車用 24 通道 40-V 高側 LED 和 OLED 驅動器

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產品規格表

TPS929240-Q1

現行
產品規格表 立即訂購

產品詳細資料

Number of channels 24 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) 0.1 Iq (typ) (mA) 10 Features Enable/Shutdown, Fault Detection, Fault Diagnostic, LED Open Detection, LED Short Detection, Precise dimming control, Thermal shutdown
Number of channels 24 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) 0.1 Iq (typ) (mA) 10 Features Enable/Shutdown, Fault Detection, Fault Diagnostic, LED Open Detection, LED Short Detection, Precise dimming control, Thermal shutdown
HTSSOP (DCP) 38 62.08 mm² 9.7 x 6.4
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • 24-channel precision high-side current output:
    • Device supply voltage 4.5V to 40V
    • LED supply voltage 4V to 36V
    • Up to 100mA channel current set by resistor
    • 2-bit global, 6-bit independent current setting
    • High-current accuracy < ±5% at 5mA to 100mA
    • Low voltage drop 750mV at 100mA
    • 12-bit independent PWM dimming
    • Programmable PWM frequency up to 20kHz
    • Phase-shift PWM dimming
    • Linear and exponential dimming method
  • FlexWire™ control interface
    • Up to 1MHz clock frequency
    • Maximum 16 devices on one FlexWire bus
    • Up to 24 bytes data transaction in one frame
    • 5V LDO output to supply CAN transceiver
  • Diagnostic and protection:
    • Programmable FAIL-SAFE state
    • LED open-circuit detection
    • LED short-circuit detection
    • Single-LED short-circuit diagnostic
    • Programmable low-supply detection
    • Open-drain ERR for fault indication
    • Watchdog and CRC for FlexWire interface
    • 8-bit ADC for pin voltage measurement
    • Overtemperature protection
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • 24-channel precision high-side current output:
    • Device supply voltage 4.5V to 40V
    • LED supply voltage 4V to 36V
    • Up to 100mA channel current set by resistor
    • 2-bit global, 6-bit independent current setting
    • High-current accuracy < ±5% at 5mA to 100mA
    • Low voltage drop 750mV at 100mA
    • 12-bit independent PWM dimming
    • Programmable PWM frequency up to 20kHz
    • Phase-shift PWM dimming
    • Linear and exponential dimming method
  • FlexWire™ control interface
    • Up to 1MHz clock frequency
    • Maximum 16 devices on one FlexWire bus
    • Up to 24 bytes data transaction in one frame
    • 5V LDO output to supply CAN transceiver
  • Diagnostic and protection:
    • Programmable FAIL-SAFE state
    • LED open-circuit detection
    • LED short-circuit detection
    • Single-LED short-circuit diagnostic
    • Programmable low-supply detection
    • Open-drain ERR for fault indication
    • Watchdog and CRC for FlexWire interface
    • 8-bit ADC for pin voltage measurement
    • Overtemperature protection

With the increasing demand for animation in automotive lighting, LEDs must be controlled independently. Therefore, LED drivers with digital interfaces are essential to effectively drive pixel-controlled lighting applications. In exterior lighting, multiple lamp functions are typically located on different PCB boards with off-board wires connected to each other. It is difficult for a traditional single-ended interface to meet the strict EMC requirements. By using an industrial-standard CAN physical layer, the UART-based FlexWire interface of the TPS929240-Q1 easily accomplishes long distance off-board communication without impacting EMC.

The TPS929240-Q1 is a 24-channel, 40V high-side LED driver that controls the 8-bit output current and 12-bit PWM duty cycles. The device meets multiple regulation requirements with LED open-circuit, short-to-ground, and single LED short-circuit diagnostics. A configurable watchdog also automatically sets FAIL-SAFE states when the MCU connection is lost, and, with programmable EEPROM, TPS929240-Q1 can flexibly be set for different application scenarios.

With the increasing demand for animation in automotive lighting, LEDs must be controlled independently. Therefore, LED drivers with digital interfaces are essential to effectively drive pixel-controlled lighting applications. In exterior lighting, multiple lamp functions are typically located on different PCB boards with off-board wires connected to each other. It is difficult for a traditional single-ended interface to meet the strict EMC requirements. By using an industrial-standard CAN physical layer, the UART-based FlexWire interface of the TPS929240-Q1 easily accomplishes long distance off-board communication without impacting EMC.

The TPS929240-Q1 is a 24-channel, 40V high-side LED driver that controls the 8-bit output current and 12-bit PWM duty cycles. The device meets multiple regulation requirements with LED open-circuit, short-to-ground, and single LED short-circuit diagnostics. A configurable watchdog also automatically sets FAIL-SAFE states when the MCU connection is lost, and, with programmable EEPROM, TPS929240-Q1 can flexibly be set for different application scenarios.
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類型 標題 日期
* Data sheet TPS929240-Q1 24-Channel, Automotive, 40V, High-Side (O)LED Driver With FlexWire™ Interface datasheet (Rev. B) PDF | HTML 2024年 4月 16日
User guide TPS929xxx-Q1 Sample Code User's Guide PDF | HTML 2023年 4月 10日
Application note Typical Application to Achieve High Immunity to BCI PDF | HTML 2022年 11月 7日

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開發板

TPS929240EVM — 24 通道汽車 LED 驅動器的 TPS929240-Q1 評估模組

TPS929240-Q1 評估模組 (EVM) 協助設計人員評估 TPS929240-Q1 的操作和性能，這是一款具有 FlexLED ™ 介面的 12 通道 40-V 高側 LED 驅動器，可個別控制汽車照明應用的輸出電流和 PWM 工作週期。它還具有 LED 開路、接地短路和單一 LED 短路診斷功能。支援在 MCU 連線遺失或沒有 MCU 控制的情況下，自動輸入預先定義的容錯狀態。

使用指南: PDF | HTML
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應用軟體及架構

TPS929240Q1-F5529-SW — TPS929240-Q1 reference code based on MSP430F5529 (MSP-EXP430F5529LP)

This reference code showcases the ability of the MSP430F5529 device to communicate with the TPS929240-Q1 LED driver. The code configures the MCU using UART to drive 24 LEDs which is available on the TPS929240EVM.
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汽車 LED 驅動器
TPS929240-Q1 — 車用 24 通道 40-V 高側 LED 和 OLED 驅動器
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計算工具

SLVRBM1 — TPS929240-Q1 TPS929160-Q1 EEPROM Configuration Tool

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汽車 LED 驅動器
TPS929160-Q1 — 車用 16 通道 40-V 高側 LED 和 OLED 驅動器 TPS929240-Q1 — 車用 24 通道 40-V 高側 LED 和 OLED 驅動器
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