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TPS92520-Q1

現行

具有 SPI 的 1.6-A 雙同步降壓 LED 驅動器

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產品規格表

TPS92520-Q1

現行
產品規格表 立即訂購

產品詳細資料

Number of channels 2 Topology Buck Rating Automotive TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 125 Vin (min) (V) 4.5 Vin (max) (V) 65 Vout (min) (V) 0 Vout (max) (V) 61 Iout (max) (A) 1.6 Iq (typ) (mA) 5 Switching frequency (max) (kHz) 2200 Features Fault Detection, LED Open Detection, Precision Dimming Control, Thermal Error Flag, Thermal shutdown
Number of channels 2 Topology Buck Rating Automotive TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 125 Vin (min) (V) 4.5 Vin (max) (V) 65 Vout (min) (V) 0 Vout (max) (V) 61 Iout (max) (A) 1.6 Iq (typ) (mA) 5 Switching frequency (max) (kHz) 2200 Features Fault Detection, LED Open Detection, Precision Dimming Control, Thermal Error Flag, Thermal shutdown
HTSSOP (DAD) 32 89.1 mm² 11 x 8.1 HTSSOP (DAP) 32 89.1 mm² 11 x 8.1
  • AEC-Q100 qualified for automotive applications
    • Grade 1: –40°C to 125°C ambient operating temperature
    • Device HBM classification level H1C
    • Device CDM classification level C5
  • Functional Safety-Capable
  • 4.5-V to 65-V wide input voltage range
  • Up to 1.6-A continuous output current with 4% accuracy
  • Adaptive on-time average current control
  • Programmable switching frequency from 100-kHz to 2.2-MHz
  • Advanced dimming operation
    • 10-bit precision analog dimming
    • 10-bit precision internal PWM dimming
    • Supports external PWM dimming input
    • Optimized for external shunt dimming including LED Matrix Manager
  • Cycle-by-cycle switch overcurrent protection
  • Switch thermal protection
  • Serial peripheral interface (SPI)
    • Configurable analog reference, switching frequency, and PWM dimming duty cycle
    • Fault monitoring and reporting
  • Limp-home (LH) and stand-alone mode operation
  • AEC-Q100 qualified for automotive applications
    • Grade 1: –40°C to 125°C ambient operating temperature
    • Device HBM classification level H1C
    • Device CDM classification level C5
  • Functional Safety-Capable
  • 4.5-V to 65-V wide input voltage range
  • Up to 1.6-A continuous output current with 4% accuracy
  • Adaptive on-time average current control
  • Programmable switching frequency from 100-kHz to 2.2-MHz
  • Advanced dimming operation
    • 10-bit precision analog dimming
    • 10-bit precision internal PWM dimming
    • Supports external PWM dimming input
    • Optimized for external shunt dimming including LED Matrix Manager
  • Cycle-by-cycle switch overcurrent protection
  • Switch thermal protection
  • Serial peripheral interface (SPI)
    • Configurable analog reference, switching frequency, and PWM dimming duty cycle
    • Fault monitoring and reporting
  • Limp-home (LH) and stand-alone mode operation

The TPS92520-Q1 is a monolithic dual synchronous buck LED driver with a wide 4.5-V to 65-V operating input voltage range that can independently power two strings of series connected LEDs. The TPS92520-Q1 implements an adaptive on-time average current mode control and is designed to be compatible with shunt FET dimming techniques and LED matrix manager-based dynamic beam headlamps. The adaptive on-time control provides near constant switching frequency that can be set between 100-kHz and 2.2-MHz. Inductor current sensing and closed-loop feedback enables better than ±4% accuracy over wide input voltage, output voltage and ambient temperature range.

The high performance LED driver can independently modulate LED current using both analog or PWM dimming techniques. Linear analog dimming response with over 16:1 range is obtained by programming the 10-bit IADJ value via SPI. PWM dimming of LED current is achieved by directly modulating the corresponding UDIM input pin with the desired duty cycle or by enabling the internal PWM generator circuit. The PWM generator translates the 10-bit PWM register value to a corresponding duty cycle by comparing it to a programmable digital counter.

The TPS92520-Q1 incorporates advanced SPI programmable diagnostic and fault protection featuring: cycle-by-cycle switch current limit, bootstrap undervoltage, LED open, LED short, thermal warning and thermal shutdown. An on-board 10-bit ADC samples critical input parameters required for system health monitoring and diagnostics.

The TPS92520-Q1 is available in a 8.1-mm x 11-mm thermally-enhanced 32-pin HTSSOP package with a 2.75-mm x 3.45-mm top-exposed and bottom-exposed pad.

The TPS92520-Q1 is a monolithic dual synchronous buck LED driver with a wide 4.5-V to 65-V operating input voltage range that can independently power two strings of series connected LEDs. The TPS92520-Q1 implements an adaptive on-time average current mode control and is designed to be compatible with shunt FET dimming techniques and LED matrix manager-based dynamic beam headlamps. The adaptive on-time control provides near constant switching frequency that can be set between 100-kHz and 2.2-MHz. Inductor current sensing and closed-loop feedback enables better than ±4% accuracy over wide input voltage, output voltage and ambient temperature range.

The high performance LED driver can independently modulate LED current using both analog or PWM dimming techniques. Linear analog dimming response with over 16:1 range is obtained by programming the 10-bit IADJ value via SPI. PWM dimming of LED current is achieved by directly modulating the corresponding UDIM input pin with the desired duty cycle or by enabling the internal PWM generator circuit. The PWM generator translates the 10-bit PWM register value to a corresponding duty cycle by comparing it to a programmable digital counter.

The TPS92520-Q1 incorporates advanced SPI programmable diagnostic and fault protection featuring: cycle-by-cycle switch current limit, bootstrap undervoltage, LED open, LED short, thermal warning and thermal shutdown. An on-board 10-bit ADC samples critical input parameters required for system health monitoring and diagnostics.

The TPS92520-Q1 is available in a 8.1-mm x 11-mm thermally-enhanced 32-pin HTSSOP package with a 2.75-mm x 3.45-mm top-exposed and bottom-exposed pad.
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類型 標題 日期
* Data sheet TPS92520-Q1 4.5-V to 65-V Dual 1.6-A Synchronous Buck LED Driver with SPI Control datasheet (Rev. D) PDF | HTML 2020年 2月 15日
User guide TPS92520EVM-133 Dual 1.6-A Synchronous Buck LED Driver Evaluation Module (Rev. A) PDF | HTML 2021年 9月 23日
Application note Paralleling LED Driver Channels to Support Higher Currents Using TPS92520/519-Q1 PDF | HTML 2021年 9月 10日
Application note Automotive Front Headlight Selection Guide PDF | HTML 2021年 4月 16日
User guide LEDMCUEVM-132 MSP432™ LED Controller Evaluation Module PDF | HTML 2020年 10月 6日
Application note TPS92520-Q1 Frame Definitions and Examples 2020年 10月 5日
White paper 簡化汽車及工業領域的功 能安全認證 2020年 6月 9日
Technical article Designing a headlight ECU with a high-power-density constant-on-time DC/DC buck LE PDF | HTML 2019年 10月 24日
Technical article How semiconductor technologies are changing automotive lighting roadmaps PDF | HTML 2019年 10月 24日
EVM User's guide TPS92520-Q1 Launchpad Evaluation Module User's Guide (Rev. B) 2019年 10月 22日
White paper An ECU Architecture for Adaptive Headlights 2019年 8月 6日

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

LEDMCUEVM-132 — 適用 LED 評估模組的 MSP432E401Y MCU 通訊板

The LEDMCUEVM-132 implements SPI communications that support multiple devices on the bus, UART communications for the LMMs family of devices, CAN transceiver for UART to control LMM family of devices, 4 PWM signals for dimming, multiple IOs, isolated 5-V supply, digital isolators, and a standard (...)

使用指南: PDF | HTML
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開發板

TPS92520EVM-074 — 適用於汽車頭燈的 TPS92520-Q1 降壓轉換器

The TPS92520EVM-074 features a two phase, constant voltage ('CV') boost regulator based on the TPS92682-Q1 dual channel controller powering 2 x TPS92520-Q1 IC's provding 4 current regulated channels of up to 1.6 Amps and 50W per cahnnel (total output power limited to 100W). The TPS92682-Q1 and (...)
使用指南: PDF
要求
開發板

TPS92520EVM-133 — TPS92520-Q1 降壓轉換器評估模組

The TPS92520EVM-133 features the TPS92520-Q1 product providing 2 current regulated channels of up to 1.6 A and 30 W per channel. (Total output power limited to 60 W) TPS92520 are controlled via a SPI interface. The EVM is controlled and monitored via the serial interface bus by the required (...)

使用指南: PDF | HTML
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開發板

TPS92664EVM-216 — 具有內部 EEPROM 和振盪器且適用於 LED 矩陣管理器的 TPS92664-Q1 評估模組

TPS92664 評估模組 (EVM) 採用 TPS92664 16 通道矩陣管理裝置。EVM 套件包含三個 PCB 及相關佈線，可為一般矩陣式頭燈系統提供端對端電源解決方案。PSIL216 PCB 包含四部 TPS92664 裝置，可提供總共 64 個 LED 的像素位準控制。PSIL215 PCB 包含由 TPS92682 多相升壓電壓前置穩壓器組成的功率級，隨後為兩個 TPS92520 雙通道同步 LED 驅動器，可為矩陣 LED 負載提供四個總電流來源輸出。PSIL132 PCB 提供 MSP432 微控制器與周邊裝置，可從筆記型電腦控制系統。

要求
開發板

TPS92667EVM-243 — 適用於 LED 矩陣管理器的 TPS92667-Q1 評估模組

TPS92667-Q1 評估模組採用 TPS92667-Q1 和 TPS92665-Q1 16 通道矩陣管理裝置。EVM 套件包含三個 PCB 及相關佈線，可為一般矩陣式頭燈系統提供端對端電源解決方案。PSIL243 PCB 包含一部 TPS9265-Q1 裝置和三部 TPS92667-Q1 裝置，可提供總共 64 個 LED 的像素位準控制。PSIL215 PCB 包含由 TPS92682-Q1 多相升壓電壓前置穩壓器組成的功率級，隨後為兩個 TPS92520-Q1 雙通道同步 LED 驅動器，可為矩陣 LED 負載提供四個總電流來源輸出。PSIL132 PCB 提供 MSP432 (...)

要求
模擬型號

TPS92520-Q1 Loop Analysis SIMPLIS Model

SLUM727.ZIP (170 KB) - SIMPLIS Model
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模擬工具

PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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參考設計

TIDA-050040 — 適用於鹵素替換參考設計的車用 LED 車頭燈驅動器模組

This reference design showcases the TPS92682 and the TPS92520 as a fully self functional three-channel LED driver for headlight applications.  The design is intended to be a low-cost halogen headlight module replacement compatible with an automotive body control module.  The three LED (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-050030 — 120W 雙級矩陣相容汽車頭燈 ECU 參考設計

This reference design details a headlight ECU using an interleaved boost in voltage regulation mode feeding four synchronous buck channels. This design is also capable of matrix headlight control and is mounted to a heatsink and enclosure to emulate an automotive headlight ECU. The TPS92682-Q1 is (...)
Design guide: PDF
電路圖: PDF
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