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TPS929121-Q1

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具有 FlexWire 接口的 12 通道汽车类 40V 高侧 LED 驱动器

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数据表

TPS929121-Q1

正在供货
数据表 立即订购

产品详情

Number of channels 12 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 Iout (max) (A) 0.075 Iq (typ) (mA) 10 Features Enable/Shutdown, Fault Detection, Fault Diagnostic, LED Open Detection, LED Short to Ground Detection, LED Weak Supply Diagnostics, PWM Dimming, Reference Resistor Open or Short Detection, Thermal Error Flag, Thermal Prewarning and Shutdown, Thermal shutdown
Number of channels 12 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 Iout (max) (A) 0.075 Iq (typ) (mA) 10 Features Enable/Shutdown, Fault Detection, Fault Diagnostic, LED Open Detection, LED Short to Ground Detection, LED Weak Supply Diagnostics, PWM Dimming, Reference Resistor Open or Short Detection, Thermal Error Flag, Thermal Prewarning and Shutdown, Thermal shutdown
HTSSOP (PWP) 24 49.92 mm² (7.8 mm × 6.4 mm)
  • AEC-Q100-qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • 12-channel precision high-side current output:
    • Supply voltage 4.5 V to 40 V
    • Up to 75-mA channel current set by resistor
    • 2-bit global, 6-bit independent current setting
    • High current accuracy < ±5% at 5 mA to 75 mA
    • High current accuracy < ±10% at 1 mA
    • Low voltage drop 500 mV at 50 mA
    • 12-bit independent PWM dimming
    • Programmable PWM frequency up to 20 kHz
    • Linear and exponential dimming method
  • FlexWire control interface
    • Up to 1-MHz clock frequency
    • Maximum 16 devices on one FlexWire bus
    • Up to 8-bytes data transaction in one frame
    • 5-V 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
  • 12-channel precision high-side current output:
    • Supply voltage 4.5 V to 40 V
    • Up to 75-mA channel current set by resistor
    • 2-bit global, 6-bit independent current setting
    • High current accuracy < ±5% at 5 mA to 75 mA
    • High current accuracy < ±10% at 1 mA
    • Low voltage drop 500 mV at 50 mA
    • 12-bit independent PWM dimming
    • Programmable PWM frequency up to 20 kHz
    • Linear and exponential dimming method
  • FlexWire control interface
    • Up to 1-MHz clock frequency
    • Maximum 16 devices on one FlexWire bus
    • Up to 8-bytes data transaction in one frame
    • 5-V 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 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 TPS929121-Q1 easily accomplishes long distance off-board communication without impacting EMC.

The TPS929121-Q1 is a 12-channel, 40-V 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, TPS929121-Q1 can flexibly be set for different application scenarios.

With 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 TPS929121-Q1 easily accomplishes long distance off-board communication without impacting EMC.

The TPS929121-Q1 is a 12-channel, 40-V 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, TPS929121-Q1 can flexibly be set for different application scenarios.
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TPS929120-Q1 正在供货 具有 FlexWire 接口的 12 通道汽车类 40V 高侧 LED 驱动器 Low-supply detection threshold decreased to 5V

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* 数据表 TPS929121-Q1 12-Channel Automotive 40-V High-Side LED Driver With FlexWire 数据表 (Rev. A) PDF | HTML 2021-2-5
用户指南 TPS929xxx-Q1 示例代码 PDF | HTML 英语版 PDF | HTML 2023-4-11

设计与开发

如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。

评估板

TPS929120EVM — TPS929120-Q1 适用于 12 通道汽车 LED 驱动器的评估模块

TPS929120-Q1 评估模块 (EVM) 可帮助设计人员评估 TPS929120-Q1 的运行和性能，TPS929120-Q1 是一款带有 FlexLED 接口的 12 通道 40V 高侧 LED 驱动器，可独立控制输出电流和 PWM 占空比，适用于汽车照明应用。该评估模块还具有 LED 开路、接地短路和单 LED 短路诊断功能，支持在失去 MCU 连接或没有 MCU 控制时，自动进入预定义的失效防护状态。
用户指南: PDF
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应用软件和框架

TPS92912XQ1-SW-F5529 — Reference code for TPS92912x-Q1 based on MSP430F5529 (MSP-EXP430F5529LP)

This reference code showcases the ability of the MSP430F5529 device to communicate with the TPS929120-Q1 and TPS929121-Q1 LED driver. The code configures the MCU using UART to drive 12 LEDs which is available on the TPS929120EVM.
支持的产品和硬件
评估模块 (EVM) 用 GUI

TPS929120EVM-GUI-SW — TPS929120EVM GUI

支持的产品和硬件
评估模块 (EVM) 用 GUI

TPS929120EVM-GUI-SW — TPS929120EVM GUI

支持的产品和硬件
计算工具

SLVRBF8 — TPS92912x-Q1 EEPROM Configuration Tool

支持的产品和硬件
封装 引脚 CAD 符号、封装和 3D 模型
HTSSOP (PWP) 24 Ultra Librarian
适用于评估类项目的 TI 标准条款与条件。

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