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TPS92830-Q1

現行

汽車 3 通道高壓側高功率定電流線性 LED 控制器

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產品規格表

TPS92830-Q1

現行
產品規格表 立即訂購

產品詳細資料

Number of channels 3 Topology Current Source Rating Automotive Operating temperature range (°C) -40 to 125 Vin (min) (V) 5 Vin (max) (V) 40 Vout (min) (V) 0 Vout (max) (V) 40 Iout (max) (A) 1.2 Iq (typ) (mA) 3.5 Features Enable/Shutdown, Fault Detection, Fault Diagnostic, LED Open Detection, LED Short to Ground Detection, Power good, Precision Dimming Control, Thermal Foldback, Thermal shutdown
Number of channels 3 Topology Current Source Rating Automotive Operating temperature range (°C) -40 to 125 Vin (min) (V) 5 Vin (max) (V) 40 Vout (min) (V) 0 Vout (max) (V) 40 Iout (max) (A) 1.2 Iq (typ) (mA) 3.5 Features Enable/Shutdown, Fault Detection, Fault Diagnostic, LED Open Detection, LED Short to Ground Detection, Power good, Precision Dimming Control, Thermal Foldback, Thermal shutdown
TSSOP (PW) 28 62.08 mm² 9.7 x 6.4
  • AEC-Q100 Qualified
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C4B
  • Wide Voltage Input Range From 4.5 V to 40 V
  • 3-Channel High-Side Current Driving and Sensing
    • Channel-Independent Current Setting
    • Channel-Independent PWM Inputs
    • PWM Dimming via Both PWM Inputs and Power Supply
    • Optimized Slew Rate for EMC
  • High-Precision LED Driving
    • Precision Current Regulation With External N-Channel MOSFET (2.5% Tolerance)
    • 20:1 Analog Dimming Profile With Off-Board Bin Resistor Support
    • Precision PWM Generator With Full Duty-Cycle Mask (2% Tolerance)
    • Open-Drain PWM Output for Synchronization
  • Protection and Diagnostics
    • Adjustable Output Current Derating for External MOSFET Thermal Protection
    • Diagnostics for LED-String Open Circuit or Short Circuit With Auto Recovery
    • Diagnostic-Enable With Adjustable Threshold for Low-Voltage Operation
    • Fault Bus up to 15 Devices, Configurable As Either One-Fails–All-Fail or Only-Failed-Channel-Off
    • Low Quiescent Current in Fault Mode (<0.75 mA per Device)
  • Operating Junction Temperature Range: –40°C to 150°C
  • TSSOP 28 Package (PW)
  • AEC-Q100 Qualified
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C4B
  • Wide Voltage Input Range From 4.5 V to 40 V
  • 3-Channel High-Side Current Driving and Sensing
    • Channel-Independent Current Setting
    • Channel-Independent PWM Inputs
    • PWM Dimming via Both PWM Inputs and Power Supply
    • Optimized Slew Rate for EMC
  • High-Precision LED Driving
    • Precision Current Regulation With External N-Channel MOSFET (2.5% Tolerance)
    • 20:1 Analog Dimming Profile With Off-Board Bin Resistor Support
    • Precision PWM Generator With Full Duty-Cycle Mask (2% Tolerance)
    • Open-Drain PWM Output for Synchronization
  • Protection and Diagnostics
    • Adjustable Output Current Derating for External MOSFET Thermal Protection
    • Diagnostics for LED-String Open Circuit or Short Circuit With Auto Recovery
    • Diagnostic-Enable With Adjustable Threshold for Low-Voltage Operation
    • Fault Bus up to 15 Devices, Configurable As Either One-Fails–All-Fail or Only-Failed-Channel-Off
    • Low Quiescent Current in Fault Mode (<0.75 mA per Device)
  • Operating Junction Temperature Range: –40°C to 150°C
  • TSSOP 28 Package (PW)

With the trend of better lighting homogeneity, high-current LEDs are often used in automotive front and rear lamps with lighting diffusers and light-guides. Meanwhile, in order to meet strict EMC and reliability requirements, linear LED drivers are popular in automotive applications. However, it is a challenge to deliver high current for linear LED drivers with integrated power transistors. The TPS92830-Q1 device is an advanced automotive-grade high-side constant-current linear LED controller for delivering high current using external N-channel MOSFETs. The device has a full set of features for automotive applications and is compatible with a wide selection of N-channel MOSFETs.

Each channel of the TPS92830-Q1 device sets the channel current independently by the sense-resistor value. An internal precision constant-current regulation loop senses the channel current by the voltage across the sense resistor and controls the gate voltage of the N-channel MOSFET accordingly. The device also integrates a two-stage charge pump for low-dropout operation. The charge-pump voltage is high enough to support a wide selection of N-channel MOSFETs. PWM dimming allows multiple

sources for flexibility—internal PWM generator, external PWM inputs, or power supply dimming. Various diagnostics and protection features specially designed for automotive applications help improve system robustness and ease of use. A one-fails–all-fail fault bus supports TPS92830-Q1 operation together with the TPS92630-Q1, TPS92638-Q1, and TPS9261x-Q1 family to fulfill various fault-handling requirements.

With the trend of better lighting homogeneity, high-current LEDs are often used in automotive front and rear lamps with lighting diffusers and light-guides. Meanwhile, in order to meet strict EMC and reliability requirements, linear LED drivers are popular in automotive applications. However, it is a challenge to deliver high current for linear LED drivers with integrated power transistors. The TPS92830-Q1 device is an advanced automotive-grade high-side constant-current linear LED controller for delivering high current using external N-channel MOSFETs. The device has a full set of features for automotive applications and is compatible with a wide selection of N-channel MOSFETs.

Each channel of the TPS92830-Q1 device sets the channel current independently by the sense-resistor value. An internal precision constant-current regulation loop senses the channel current by the voltage across the sense resistor and controls the gate voltage of the N-channel MOSFET accordingly. The device also integrates a two-stage charge pump for low-dropout operation. The charge-pump voltage is high enough to support a wide selection of N-channel MOSFETs. PWM dimming allows multiple

sources for flexibility—internal PWM generator, external PWM inputs, or power supply dimming. Various diagnostics and protection features specially designed for automotive applications help improve system robustness and ease of use. A one-fails–all-fail fault bus supports TPS92830-Q1 operation together with the TPS92630-Q1, TPS92638-Q1, and TPS9261x-Q1 family to fulfill various fault-handling requirements.
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類型 標題 日期
* Data sheet TPS92830-Q1 3-Channel High-Current Linear LED Controller datasheet (Rev. B) PDF | HTML 2018年 1月 16日
Technical article TI at the Auto Lamp Exhibition 2018 in Shanghai PDF | HTML 2018年 3月 30日
White paper LED Drivers for Automotive Exterior Applications (Rev. B) 2018年 3月 27日
Selection guide 汽车外部照明应用的LED驱动器 2018年 3月 15日
Technical article A wiser choice for automotive lighting PDF | HTML 2017年 11月 29日
EVM User's guide TPS92830EVM User's Guide 2017年 7月 4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

TPS92830EVM — TPS92830-Q1 三通道高電流線性 LED 控制器評估模組 (EVM)

The TPS92830-Q1 evaluation module (EVM) helps designers evaluate the operation and performance of the TPS92830-Q1, a 3-channel high-current linear LED controller for automotive lighting applications. It features precision current regulation with external MOSFET. It also has full diagnostics for (...)
使用指南: PDF
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模擬型號

TPS92830-Q1 Unencrypted PSpice Transient Model Package (Rev. B)

SLIM338B.ZIP (54 KB) - PSpice 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-01376 — 符合 EMC 規範的車用 LED 轉向指示器參考設計

This automotive reference design details a solution for a turn indicator application. The automotive battery directly supplies the TPS92830-Q1 linear lightemitting-diode (LED) controller used in this design. This reference design features robust electromagnetic compatibility (EMC) performance, full (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-01374 — 符合 EMC 規範的車用停車燈和尾燈參考設計

This automotive reference design details a solution for a stop light and a tail light. The automotive battery directly supplies the TPS92830-Q1 linear lightemitting-diode (LED) controller used in this design, which allows the designer to use the same LEDs for both functions. This reference design (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-01375 — 符合 EMC 規範的汽車日間行車燈和位置燈參考設計

This reference design details a solution for an automotive daytime running light (DRL) and position light. The TPS92830-Q1 linear LED controller used in this design is directly supplied from the automotive battery, allowing you to use the same LEDs for both functions. This reference design also (...)
Design guide: PDF
電路圖: PDF
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