ホーム パワー・マネージメント DC/DC スイッチング・レギュレータ 降圧 (バック) レギュレータ 降圧 コントローラ (外部スイッチ)

TPS40090-Q1

アクティブ

車載向け 4.5V ~ 15V、マルチフェーズ、同期整流降圧コントローラ

製品詳細

Vin (min) (V) 4.5 Vin (max) (V) 15 Vout (min) (V) 0.7 Vout (max) (V) 3.3 Iout (max) (A) 120 Iq (typ) (mA) 4 Switching frequency (min) (kHz) 100 Switching frequency (max) (kHz) 1000 Features Adjustable current limit, Enable, Frequency synchronization, Phase Interleaving, Power good, Synchronous Rectification Operating temperature range (°C) -40 to 125 Regulated outputs (#) 1 Number of phases 4 Rating Automotive Control mode current mode Type Controller
Vin (min) (V) 4.5 Vin (max) (V) 15 Vout (min) (V) 0.7 Vout (max) (V) 3.3 Iout (max) (A) 120 Iq (typ) (mA) 4 Switching frequency (min) (kHz) 100 Switching frequency (max) (kHz) 1000 Features Adjustable current limit, Enable, Frequency synchronization, Phase Interleaving, Power good, Synchronous Rectification Operating temperature range (°C) -40 to 125 Regulated outputs (#) 1 Number of phases 4 Rating Automotive Control mode current mode Type Controller
TSSOP (PW) 24 49.92 mm² 7.8 x 6.4
  • Qualified for Automotive Applications
  • Two-, Three-, or Four-Phase Operation
  • 5-V to 15-V Operating Range
  • Programmable Switching Frequency Up to 1-MHz/Phase
  • Current Mode Control With Forced Current Sharing(1)
  • 1% Internal 0.7-V Reference
  • Resistive Divider Set Output Voltage
  • True Remote Sensing Differential Amplifier
  • Resistive or DCR Current Sensing
  • Current Sense Fault Protection
  • Programmable Load Line
  • Compatible with UCC37222 Predictive Gate Drive™ Technology Drivers
  • 24-Pin Space-Saving TSSOP Package
  • Binary Outputs
  • APPLICATIONS
    • Internet Servers
    • Network Equipment
    • Telecommunications Equipment
    • DC Power Distributed Systems

(1) Patent pending
Predictive Gate Drive is a trademark of Texas Instruments.

  • Qualified for Automotive Applications
  • Two-, Three-, or Four-Phase Operation
  • 5-V to 15-V Operating Range
  • Programmable Switching Frequency Up to 1-MHz/Phase
  • Current Mode Control With Forced Current Sharing(1)
  • 1% Internal 0.7-V Reference
  • Resistive Divider Set Output Voltage
  • True Remote Sensing Differential Amplifier
  • Resistive or DCR Current Sensing
  • Current Sense Fault Protection
  • Programmable Load Line
  • Compatible with UCC37222 Predictive Gate Drive™ Technology Drivers
  • 24-Pin Space-Saving TSSOP Package
  • Binary Outputs
  • APPLICATIONS
    • Internet Servers
    • Network Equipment
    • Telecommunications Equipment
    • DC Power Distributed Systems

(1) Patent pending
Predictive Gate Drive is a trademark of Texas Instruments.

The TPS40090 is a two-, three-, or four-phase programmable synchronous buck controller that is optimized for low-voltage, high-current applications powered by a 5-V to 15-V distributed supply. A multi-phase converter offers several advantages over a single power stage including lower current ripple on the input and output capacitors, faster transient response to load steps, improved power handling capabilities, and higher system efficiency.

Each phase can be operated at a switching frequency up to 1-MHz, resulting in an effective ripple frequency of up to 4-MHz at the input and the output in a four-phase application. A two-phase design operates 180° out of phase, a three-phase design operates 120° out of phase, and a four-phase design operates 90° out of phase, as shown in Figure 1.

The number of phases is programmed by connecting the deactivated phase PWM output to the output of the internal 5-V LDO. In two-phase operation the even phase outputs should be deactivated.

The TPS40090 uses fixed frequency, peak current mode control with forced phase current balancing. When compared to voltage mode control, current mode results in a simplified feedback network and reduced input line sensitivity. Phase current is sensed by using either current sense resistors installed in series with output inductors or, for improved efficiency, by using the DCR (direct current resistance) of the filter inductors. The latter method involves generation of a current proportional signal with an R-C circuit (shown in Figure 11).

The R-C values are selected by matching the time constants of the R-C circuit and the inductor; R-C = L/DCR. With either current sense method, the current signal is amplified and superimposed on the amplified voltage error signal to provide current mode PWM control.

An output voltage droop can be programmed to improve the transient window and reduce size of the output filter. Other features include a single voltage operation, a true differential sense amplifier, a programmable current limit, soft-start, and a power good indicator.

The TPS40090 is a two-, three-, or four-phase programmable synchronous buck controller that is optimized for low-voltage, high-current applications powered by a 5-V to 15-V distributed supply. A multi-phase converter offers several advantages over a single power stage including lower current ripple on the input and output capacitors, faster transient response to load steps, improved power handling capabilities, and higher system efficiency.

Each phase can be operated at a switching frequency up to 1-MHz, resulting in an effective ripple frequency of up to 4-MHz at the input and the output in a four-phase application. A two-phase design operates 180° out of phase, a three-phase design operates 120° out of phase, and a four-phase design operates 90° out of phase, as shown in Figure 1.

The number of phases is programmed by connecting the deactivated phase PWM output to the output of the internal 5-V LDO. In two-phase operation the even phase outputs should be deactivated.

The TPS40090 uses fixed frequency, peak current mode control with forced phase current balancing. When compared to voltage mode control, current mode results in a simplified feedback network and reduced input line sensitivity. Phase current is sensed by using either current sense resistors installed in series with output inductors or, for improved efficiency, by using the DCR (direct current resistance) of the filter inductors. The latter method involves generation of a current proportional signal with an R-C circuit (shown in Figure 11).

The R-C values are selected by matching the time constants of the R-C circuit and the inductor; R-C = L/DCR. With either current sense method, the current signal is amplified and superimposed on the amplified voltage error signal to provide current mode PWM control.

An output voltage droop can be programmed to improve the transient window and reduce size of the output filter. Other features include a single voltage operation, a true differential sense amplifier, a programmable current limit, soft-start, and a power good indicator.

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。
1 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 High-Frequency Multiphase Controller. データシート (Rev. C) 2011年 5月 17日

設計と開発

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

TPS40090EVM-001 — TPS40090EVM-001 評価モジュール

The TPS40090EVM−001 multi-phase dc-to-dc converter utilizes the TPS40090 multi-phase controller and UCC27222 predictive gate driver to step down a 12-V input to 1.5-V at 420 kHz. The output current is 100 A. The TPS40090 provides fixed-frequency, peak current-mode control with forced-phase current (...)

ユーザー ガイド: PDF
シミュレーション・モデル

TPS40090 PSpice Transient Model

SLUM308.ZIP (173 KB) - PSpice Model
シミュレーション・ツール

PSPICE-FOR-TI — TI Design / シミュレーション・ツール向け PSpice®

PSpice® for TI は、各種アナログ回路の機能評価に役立つ、設計とシミュレーション向けの環境です。設計とシミュレーションに適したこのフル機能スイートは、Cadence® のアナログ分析エンジンを使用しています。PSpice for TI は無償で使用でき、アナログや電源に関する TI の製品ラインアップを対象とする、業界でも有数の大規模なモデル・ライブラリが付属しているほか、選択された一部のアナログ動作モデルも利用できます。

設計とシミュレーション向けの環境である PSpice for TI (...)
パッケージ ピン数 ダウンロード
TSSOP (PW) 24 オプションの表示

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
  • 材質成分
  • 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

推奨製品には、この TI 製品に関連するパラメータ、評価基板、またはリファレンス デザインが存在する可能性があります。

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