LTC4416EMS-1#PBF - 36V Dual Ideal Diode OR Controller | ADI
部品番号: LTC4416EMS-1#PBF ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $5.98 | $5.98 |
| 10 | $5.42 | $54.20 |
| 100 | $4.86 | $486.00 |
| 500 | $4.38 | $2,190.00 |
| 1,000 | $3.95 | $3,950.00 |
LTC4416EMS-1#PBF 概要
An ideal diode controller is a power management IC that drives external MOSFETs to emulate a diode with near-zero forward voltage drop. In the power-supply hierarchy, it sits between raw power sources (adapters, batteries, PoE supplies) and the system load, replacing Schottky diodes in power ORing and source-switchover circuits to eliminate diode conduction losses and the associated heat.
Key features include a wide 3.5V to 36V operating range that supports one to eight series Li-Ion cells, a low 35uA per channel quiescent current that is independent of load current, and regulation of the MOSFET forward voltage so conduction loss scales down with load. The LTC4416-1 variant adds fast turn-off of the alternate channel MOSFET when the other device is selected via the enable pins, enabling priority-source switchover behavior.
The architecture drives large external P-channel MOSFETs with controlled gate voltage, forward-regulating each channel to a small setpoint voltage. When a source falls below its regulated forward drop, the MOSFET turns off quickly, providing reverse-current blocking without a discrete diode drop. Because the drop is I*Rds(on) rather than a fixed 0.3-0.5V, self-heating and efficiency losses are dramatically reduced at high currents.
Typical applications include highly efficient ORing of multiple power sources such as adapter/battery switchover in portable instruments, high-power PoE and telecom power feeds, and backup battery holdup systems. The LTC4416E grade is guaranteed from 0C to 85C; the I grade extends to -40C to 125C.
Design consideration: select external P-channel MOSFETs with adequate Vds rating (at least 40V for 36V rails) and low Rds(on), since the controller regulates only the gate drive, not the MOSFET thermal budget.
This page synthesizes distributor pricing, drop-in same-family alternatives, pinout guidance, and practical design notes not found in the manufacturer datasheet alone.
ドロップイン代替品: LTC4416EMS-1#PBF — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: LTC4416EMS-1#PBF （同一形状・フットプリント） — 相違点: Function, Package, RoHS Status, Number of Channels.
クイック比較ツール — 並列比較する代替部品を選択:
LTC4416IMS#PBF
✅ ドロップイン✓ 在庫あり
$3.58 / 個
データシートを見る →LTC4416EMS#PBF
✅ ドロップイン✓ 在庫あり
$3.84 / 個
データシートを見る →LTC4416IMS-1#PBF
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
LTC4416EMS-1#PBF 最大定格＆電気的特性
| 機能 | Dual ideal diode / PowerPath ORing controller |
| 入力電圧範囲 | 3.5 V to 36 V |
| Number of Channels | 2 |
| External Power Switch | P-channel MOSFET |
| 静止電流 | 35 uA per channel |
| Configuration (LTC4416-1) | 2:2 source selector with fast turn-off of alternate channel |
| Battery Support | 1 to 8 series Li-Ion cells |
| Operating Temperature Range (E grade) | 0C to 85C (guaranteed); -40C to 85C assured by design |
| パッケージ | 10-MSOP (MS10) |
| 実装タイプ | Surface Mount |
| RoHS ステータス | Compliant (#PBF suffix = lead-free) |
| Manufacturer | Analog Devices (originally Linear Technology) |
| Application | Power switchover, power supply ORing, PoE power feeds |
| Reverse Current Blocking | Yes (fast MOSFET turn-off) |
| Revision (datasheet 4416FA) | FA per ADI document URL |
LTC4416EMS-1#PBF 10-msop (ms10) ピン配置ガイド
LTC4416EMS-1#PBF (10-msop (ms10) パッケージ) のピン配置。 このパワーデバイスは、ゲート、ドレイン、ソース端子を備えています。非極性パッケージの場合、正確なピン1の向きとフットプリントの詳細については、メーカーのデータシートを参照してください。主な用途には、電源設計、モータ駆動、負荷スイッチングがあります。
詳細なピン配置データはありません: LTC4416EMS-1#PBF.
詳細は データシート をご参照ください。
主な用途
LTC4416EMS-1#PBF の用途: 6 件s: Power Supply ORing, Adapter / Battery Switchover, High-Power PoE Power Feeds, Backup Battery Holdup Systems, Industrial 24V Control Systems, Solar and Renewable Input ORing.
Power Supply ORing
The LTC4416EMS-1#PBF controls two sets of external P-channel MOSFETs to create two near-ideal diode functions, enabling highly efficient ORing of multiple power sources. Because the MOSFET forward drop is regulated to a small setpoint rather than a 0.3-0.5V Schottky diode drop, conduction loss falls to I2*Rds(on), extending battery life and cutting self-heating in redundant-supply systems. The 3.5V to 36V operating range covers 5V logic rails through 24V industrial buses and multi-cell Li-Ion stacks, while 35uA per channel quiescent draw keeps standby overhead negligible.
おすすめ
Adapter / Battery Switchover
In portable and industrial instruments powered by both a wall adapter and a Li-Ion battery pack, the LTC4416-1's fast turn-off feature disconnects the battery path the moment the adapter channel is selected via the enable pins, preventing reverse discharge into the battery during transitions. One to eight series Li-Ion cells are supported by the 3.5V to 36V range. The regulated forward voltage keeps the adapter-to-system path efficient at full load, and the low 35uA per channel quiescent current minimizes drain when running from battery alone.
おすすめ
High-Power PoE Power Feeds
Mouser lists this device as a 36V low-loss dual PowerPath controller for large PFETs targeting large PoE power feed (PFE) applications. The controller drives large external P-channel MOSFETs, so power throughput is defined by MOSFET rating rather than the IC, and near-zero forward drop reduces the heat that must be dissipated in dense PoE infrastructure. Dual channels allow ORing of a primary and auxiliary PSE feed with priority selection via the enable pins and fast-off behavior of the LTC4416-1 variant.
おすすめ
Backup Battery Holdup Systems
Server, telecom, and industrial control systems use supercapacitor or battery holdup modules to ride through input dips. The LTC4416EMS-1#PBF ORs the main 24V or 36V rail with the holdup source, forward-regulating each MOSFET so the holdup path engages seamlessly when the main rail sags below regulation. Reverse-current blocking via fast MOSFET turn-off prevents the holdup reservoir from back-feeding the failed main source, preserving ride-through energy exactly where the load needs it.
おすすめ
Industrial 24V Control Systems
Factory automation controllers routinely combine a 24V DIN-rail supply with a locally installed battery or secondary supply. The LTC4416's 36V maximum input covers nominal 24V rails with transient headroom, and the E grade 0C to 85C guaranteed range matches control-cabinet environments. Dual near-ideal diodes allow live swapping of the primary supply without dropping the load, and the I2*Rds(on) conduction loss keeps cabinet thermal load low compared with Schottky ORing diodes at multi-ampere load currents.
おすすめ
Solar and Renewable Input ORing
Off-grid systems combine panel, battery, and generator sources whose voltages vary widely. The 3.5V to 36V operating window and MOSFET-based ORing of the LTC4416EMS-1#PBF let designers parallel diverse sources without diode losses eroding harvested energy at low irradiance. Because quiescent current is a fixed 35uA per channel and independent of load, nighttime or idle drain stays minimal. Selecting MOSFETs with 40V or higher Vds rating protects against open-circuit panel transients on 24V-class arrays.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: LTC4416EMS-1#PBF — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | LTC4416IMS#PBF | LTC4416EMS#PBF | LTC4416IMS-1#PBF |
|---|---|---|---|---|
| Package | 10-MSOP (MS10) | 10-MSOP (MS10) - same | 10-MSOP (MS10) - same | 10-MSOP (MS10) - same |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Input Voltage Range | 3.5 V to 36 V | 3.5 V to 36 V | 3.5 V to 36 V | 3.5 V to 36 V |
| Quiescent Current | 35 uA per channel | 35 uA per channel | 35 uA per channel | 35 uA per channel |
| Fast Alternate-Channel Turn-Off (-1 feature) | Yes | No (standard LTC4416) | No (standard LTC4416) | Yes |
| Operating Temperature (guaranteed) | 0C to 85C (E grade) | -40C to 125C (I grade) | 0C to 85C (E grade) | -40C to 125C (I grade) |
| Channel Configuration | 2:2 (dual source selector) | 2:2 | 2:1 (per DigiKey categorization) | 2:2 |
| RoHS / Lead-Free | Compliant (#PBF) | Compliant (#PBF) | Compliant (#PBF) | Compliant (#PBF) |
主な差別化要因
- Fast alternate-channel turn-off for priority switchover （vs LTC4416EMS#PBF)
- Low fixed quiescent current independent of load （vs LTC4416IMS#PBF)
- Trade-off: commercial temperature guarantee only （vs LTC4416IMS-1#PBF)
設計ノート
Verify the variant suffix before design-in. The standard LTC4416 and the LTC4416-1 share the same package and pinout but differ in behavior: the -1 enables fast turn-off of the off-channel MOSFET when the other device is selected via the enable pins. Designs relying on priority-source switchover must use the -1; substituting the plain LTC4416 can allow reverse current during source transitions. Also note the E grade is guaranteed only from 0C to 85C; -40C to 85C performance is assured by design and characterization, not production test. Use LTC4416IMS-1#PBF for guaranteed extended temperature.
Choose external P-channel MOSFETs with Vds rating of at least 40V to withstand 36V maximum input plus transients, and Rds(on) low enough that I2*Rds(on) stays within the MOSFET thermal budget at full load. The LTC4416 regulates the forward voltage across each MOSFET, so total power capability is set entirely by the external MOSFET, not the controller. Estimate: at 5A with a 20mOhm MOSFET, conduction loss is about 0.5W per path versus roughly 2W for a 0.4V Schottky diode - a 4x heat reduction.
Place the sense connections directly at the MOSFET drain and source terminals with short, wide Kelvin traces so the controller regulates the true forward voltage rather than trace drop. Keep the GATE drive loops compact to limit ringing during the fast turn-off transitions of the LTC4416-1. Decouple the supply pin with at least 0.1uF ceramic close to the IC. Provide generous copper pour under the MOSFET drain/source pads since the MOSFETs, not the controller, carry the load current and heat.
コンプライアンス情報
The #PBF suffix denotes Analog Devices Pb-free/RoHS-compliant packaging. REACH, halogen-free, and conflict-minerals declarations not found in provided data; consult ADI quality documentation.
