ホーム パワー・マネージメント AC/DC および DC/DC コンバータ (FET 内蔵)

LM61480T-Q1

アクティブ

車載、上面に露出パッド搭載、電力密度と低 EMI (電磁干渉) を重視した最適化済み、8A、降圧コンバータ

製品詳細

Rating Automotive Operating temperature range (°C) to TI functional safety category Functional Safety-Capable Topology Buck Type Converter Iout (max) (A) 8 Vin (min) (V) 3 Vin (max) (V) 36 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2200 Features Enable, Forced PWM, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, UVLO Fixed, Wettable flanks package EMI features Spread Spectrum Control mode current mode Vout (min) (V) 1 Vout (max) (V) 34.2 Iq (typ) (µA) 5 Duty cycle (max) (%) 98
Rating Automotive Operating temperature range (°C) to TI functional safety category Functional Safety-Capable Topology Buck Type Converter Iout (max) (A) 8 Vin (min) (V) 3 Vin (max) (V) 36 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2200 Features Enable, Forced PWM, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, UVLO Fixed, Wettable flanks package EMI features Spread Spectrum Control mode current mode Vout (min) (V) 1 Vout (max) (V) 34.2 Iq (typ) (µA) 5 Duty cycle (max) (%) 98
VQFN-HR (VAM) 16 15.75 mm² 4.5 x 3.5
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C ambient operating temperature
  • Functional Safety-Capable
  • Input voltage range from 3V to 36V
  • Designed for low EMI:
    • CISPR 25 class 5 compliant EVM
    • Pin-configurable spread spectrum
    • Adjustable SW node rise time
    • Above and below AM band operation: pin configurable 400kHz and 2.2MHz fixed or adjustable from 200kHz – 2.2MHz
    • Low EMI symmetrical pinout
    • Light load mode is pin-configurable for constant frequency or pulse frequency modulation (PFM)
  • High-efficiency design
    • 95% efficient for an 8A load at 5VOUT
    • < 1µA shutdown current (typical)
  • High power density
    • Built-in compensation, soft start, current limit, thermal shutdown, and UVLO
    • 4.5mm × 3.5mm wettable flank QFN package
  • Thermally enhanced package provides exposed top and bottom thermal pads and enables dual-side cooling with RθJC(top) = 0.64°C/W
  • Pin compatible with LM62460-Q1, LM61480-Q1, and LM61495-Q1
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C ambient operating temperature
  • Functional Safety-Capable
  • Input voltage range from 3V to 36V
  • Designed for low EMI:
    • CISPR 25 class 5 compliant EVM
    • Pin-configurable spread spectrum
    • Adjustable SW node rise time
    • Above and below AM band operation: pin configurable 400kHz and 2.2MHz fixed or adjustable from 200kHz – 2.2MHz
    • Low EMI symmetrical pinout
    • Light load mode is pin-configurable for constant frequency or pulse frequency modulation (PFM)
  • High-efficiency design
    • 95% efficient for an 8A load at 5VOUT
    • < 1µA shutdown current (typical)
  • High power density
    • Built-in compensation, soft start, current limit, thermal shutdown, and UVLO
    • 4.5mm × 3.5mm wettable flank QFN package
  • Thermally enhanced package provides exposed top and bottom thermal pads and enables dual-side cooling with RθJC(top) = 0.64°C/W
  • Pin compatible with LM62460-Q1, LM61480-Q1, and LM61495-Q1

The LM614xxT-Q1 buck converters are automotive-focused regulators providing adjustable output voltage, which can be set from 1V to 95% of expected input voltage. These regulators operate under a wide input voltage range of 3V to 36V and have transient tolerance up to 42V.

The family is designed for low EMI. The device incorporates pin selectable spread spectrum, and an adjustable SW node rise time. Dual Random Spread Spectrum (DRSS) frequency hopping is set to ±4% (typical), drastically reducing peak emissions through a combination of triangular and pseudorandom modulation, and includes advanced techniques to reduce output voltage ripple caused by spread spectrum modulation.

An open-drain RESET output, with filtering and delayed release, gives a true indication of system status. In auto mode, the device automatically transitions between fixed frequency Pulse Width Modulation (FPWM) and Pulse Frequency Modulation (PFM) modes of operation, allowing an unloaded current consumption of only 5µA (typical). Electrical characteristics are specified over a junction temperature range of –40°C to +150°C.

The LM614xxT-Q1 buck converters are automotive-focused regulators providing adjustable output voltage, which can be set from 1V to 95% of expected input voltage. These regulators operate under a wide input voltage range of 3V to 36V and have transient tolerance up to 42V.

The family is designed for low EMI. The device incorporates pin selectable spread spectrum, and an adjustable SW node rise time. Dual Random Spread Spectrum (DRSS) frequency hopping is set to ±4% (typical), drastically reducing peak emissions through a combination of triangular and pseudorandom modulation, and includes advanced techniques to reduce output voltage ripple caused by spread spectrum modulation.

An open-drain RESET output, with filtering and delayed release, gives a true indication of system status. In auto mode, the device automatically transitions between fixed frequency Pulse Width Modulation (FPWM) and Pulse Frequency Modulation (PFM) modes of operation, allowing an unloaded current consumption of only 5µA (typical). Electrical characteristics are specified over a junction temperature range of –40°C to +150°C.

ダウンロード 字幕付きのビデオを表示 ビデオ

技術資料

star =TI が選定したこの製品の主要ドキュメント
結果が見つかりませんでした。検索条件をクリアしてから、再度検索を試してください。
2 をすべて表示
種類 タイトル 最新の英語版をダウンロード 日付
* データシート LM614xxT-Q1 3V to 36V, 8A/10A, Automotive, Buck Converter Optimized for Power Density and Low EMI in a Thermally Enhanced Package for Dual Side Cooling データシート (Rev. A) PDF | HTML 2024年 12月 12日
機能安全情報 LM62460-Q1, LM61480(T)-Q1, and LM61495(T)-Q1 Functional Safety FIT Rate, FMD and Pin FMA (Rev. B) PDF | HTML 2024年 12月 12日

設計および開発

その他のアイテムや必要なリソースを参照するには、以下のタイトルをクリックして詳細ページをご覧ください。

評価ボード

LM61495RPHEVM — LM61495-Q1 10A、400kHz、同期整流降圧コンバータの評価基板

LM61495RPHEVM 評価基板 (EVM) は、同期整流降圧コンバータ LM61495-Q1 の評価を目的とする、包括的な組み立てとテスト実施済みの回路です。LM61495-Q1 は、非常に優れた効率、低静止電流 (IQ)、低 EMI (電磁干渉) を小型ソリューション サイズで実現します。
ユーザー ガイド: PDF | HTML
パッケージ ピン数 CAD シンボル、フットプリント、および 3D モデル
VQFN-HR (VAM) 16 Ultra Librarian

購入と品質

記載されている情報:
  • RoHS
  • REACH
  • デバイスのマーキング
  • リード端子の仕上げ / ボールの原材料
  • MSL 定格 / ピーク リフロー
  • MTBF/FIT 推定値
  • 使用原材料
  • 認定試験結果
  • 継続的な信頼性モニタ試験結果
記載されている情報:
  • ファブの拠点
  • 組み立てを実施した拠点

サポートとトレーニング

TI E2E™ フォーラムでは、TI のエンジニアからの技術サポートを提供

コンテンツは、TI 投稿者やコミュニティ投稿者によって「現状のまま」提供されるもので、TI による仕様の追加を意図するものではありません。使用条件をご確認ください。

TI 製品の品質、パッケージ、ご注文に関するお問い合わせは、TI サポートをご覧ください。​​​​​​​​​​​​​​

ビデオ