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汽車 LED 驅動器

TPS92515-Q1

現行

具有整合式 NFET 和電流校準功能的 42-V 汽車 2-A 分流 PWM 可調光 LED 驅動器

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產品規格表

TPS92515-Q1

現行
產品規格表 立即訂購

產品詳細資料

Number of channels 1 Topology Buck Rating Automotive Operating temperature range (°C) -40 to 125 Vin (min) (V) 5.5 Vin (max) (V) 42 Vout (min) (V) 0 Vout (max) (V) 39 Iout (max) (A) 2 Iq (typ) (mA) 1 Switching frequency (max) (kHz) 2000 Features Integrated Switch, Precision Dimming Control, Thermal shutdown
Number of channels 1 Topology Buck Rating Automotive Operating temperature range (°C) -40 to 125 Vin (min) (V) 5.5 Vin (max) (V) 42 Vout (min) (V) 0 Vout (max) (V) 39 Iout (max) (A) 2 Iq (typ) (mA) 1 Switching frequency (max) (kHz) 2000 Features Integrated Switch, Precision Dimming Control, Thermal shutdown
HVSSOP (DGQ) 10 14.7 mm² (3 mm × 4.9 mm)
  • AEC-Q100 Grade 1 Qualified
  • Integrated 290-mΩ (typ) Internal N-Channel FET
  • Input Voltage Range:
    • TPS92515x: 5.5 V to 42 V
    • TPS92515HVx: 5.5 V to 65 V
    • Operation Down to 5.15 V After Start-Up
  • Low Offset High-side Peak Current Comparator
  • Constant Average Current, up to 2 A
  • Inherent Cycle-by-Cycle Current Limit
  • Multiple Dimming Methods
    • 10,000:1 Shunt PWM Dimming Range
    • 1000:1 PWM Dimming Range
    • 200:1 Analog Dimming Range
  • Simple Constant Off-time Control
    • No Loop Compensation
    • Fast Transient Response
  • Thermally Enhanced HVSSOP Package
  • Integrated Thermal Protection
  • AEC-Q100 Grade 1 Qualified
  • Integrated 290-mΩ (typ) Internal N-Channel FET
  • Input Voltage Range:
    • TPS92515x: 5.5 V to 42 V
    • TPS92515HVx: 5.5 V to 65 V
    • Operation Down to 5.15 V After Start-Up
  • Low Offset High-side Peak Current Comparator
  • Constant Average Current, up to 2 A
  • Inherent Cycle-by-Cycle Current Limit
  • Multiple Dimming Methods
    • 10,000:1 Shunt PWM Dimming Range
    • 1000:1 PWM Dimming Range
    • 200:1 Analog Dimming Range
  • Simple Constant Off-time Control
    • No Loop Compensation
    • Fast Transient Response
  • Thermally Enhanced HVSSOP Package
  • Integrated Thermal Protection

The TPS92515 family of devices are compact monolithic switching regulators integrating a low resistance N-Channel MOSFET. The devices are intended for high-brightness LED lighting applications where efficiency, high bandwidth, PWM and/or analog dimming and small size are important.

The regulator operates using a constant off-time, peak current control. The operation is simple: after an off-time based on the output voltage, an on-time begins. The on-time ends once the inductor peak current threshold is reached. The TPS92515 device can be configured to maintain a constant peak-to-peak ripple during the ON and OFF periods of a shunt FET dimming cycle. This is ideal for maintaining a linear response across the entire shunt FET dimming range.

Steady-state accuracy is aided by the inclusion of a low-offset, high-side comparator. LED current can be modulated using either Analog or PWM dimming, or both simultaneously. Other features include UVLO, wide input voltage operation, inherent LED Open operation and wide operating temperature range with thermal shut-down.

The TPS92515 and TPS92515-Q1 devices have an operational input range up to 42 V. The TPS92515HV and TPS92515HV-Q1 offer high-voltage options with an input range up to 65 V. All are available in a thermally enhanced 10-pin HVSSOP package.

The TPS92515 family of devices are compact monolithic switching regulators integrating a low resistance N-Channel MOSFET. The devices are intended for high-brightness LED lighting applications where efficiency, high bandwidth, PWM and/or analog dimming and small size are important.

The regulator operates using a constant off-time, peak current control. The operation is simple: after an off-time based on the output voltage, an on-time begins. The on-time ends once the inductor peak current threshold is reached. The TPS92515 device can be configured to maintain a constant peak-to-peak ripple during the ON and OFF periods of a shunt FET dimming cycle. This is ideal for maintaining a linear response across the entire shunt FET dimming range.

Steady-state accuracy is aided by the inclusion of a low-offset, high-side comparator. LED current can be modulated using either Analog or PWM dimming, or both simultaneously. Other features include UVLO, wide input voltage operation, inherent LED Open operation and wide operating temperature range with thermal shut-down.

The TPS92515 and TPS92515-Q1 devices have an operational input range up to 42 V. The TPS92515HV and TPS92515HV-Q1 offer high-voltage options with an input range up to 65 V. All are available in a thermally enhanced 10-pin HVSSOP package.
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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 TPS92515x 2-A, Buck LED Driver with Integrated N-channel FET, High-Side Current Sense, and Shunt FET PWM Dimming Capability datasheet (Rev. A) PDF | HTML 2016/8/16
應用說明 Automotive Front Headlight Selection Guide PDF | HTML 2021/4/16

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

TPS92515HVEVM-749 — TPS92515HV-Q1 降壓 LED 驅動器評估板

TPS92515HVEVM-749 是完全組裝且經過測試的 LED 驅動器。可以為單串列串聯 LED 供電。各種調光配置可使用此 EVM 測試：類比調光、PWM 調光、分流 FET 調光。
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模擬型號

TPS92515 PSpice Transient Model

SLUM524.ZIP (44 KB) - PSpice 模型
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模擬型號

TPS92515 TINA-TI Reference Design

SLUM554.TSC (54 KB) - TINA-TI 參考設計
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模擬型號

TPS92515 TINA-TI Transient Spice Model

SLUM553.ZIP (48 KB) - TINA-TI Spice 模型
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計算工具

SLUC613 — TPS92515 Design Calculator

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參考設計

PMP15004 — 具有類比和 PWM 調光的 7.5W 1.25A 車用降壓 LED 驅動器參考設計

此參考設計展示了小尺寸 LED 驅動器 (TPS92515HV-Q1)，經最佳化可驅動兩個 LED，用於霧燈設計。降壓拓樸結構實現為直接對電池的單級 LED 驅動器，這是一種簡單且具有成本效益的照明方式。額外的設計靈活性包括類比和 PWM 調光支援，以及逐週期電流限制和整合式過熱自動關機保護。已包含 EMI 濾波器，其設計符合 CISPR-25 Class 3 傳導要求。
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封裝 針腳 CAD 符號、佔位空間與 3D 模型
HVSSOP (DGQ) 10 Ultra Librarian
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