サージ・ストッパ、過電圧および過電流保護
アナログ・デバイセズの高電圧サージ・ストッパ、過電圧保護、過電流保護、および回路ブレーカーICのファミリは、低消費電力で設計が簡単な小型ソリューションで堅牢なフロントエンド保護を提供し、システムの信頼性を向上させます。回路は、ISO 7637-2、MIL-STD-1275、DO-160など、オートモーティブ、防衛、アビオニクスの多くの規格に適合するように設計することができます。当社のポートフォリオは、過渡電圧の上昇を防ぎ、イベント全体を通じて確実な動作が行われるようにすることで、敏感な電子部品を保護するという困難な課題をエンジニアが克服するのに役立ちます。低電圧、過電圧、過電流を様々に組み合わせたり、逆入力保護機能を使用したりすることで、機能、サイズ、コストの条件を最適化できます。当社のサージ・ストッパが電圧の上昇によるシステム動作の中断を避けることができる一方、保護コントローラは、故障発生時に入力を出力から即座に切り離すことができます。
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Technical Articles Page
- LTspice: Models of ISO 7637-2 & ISO 16750-2 Transients
- LTspice: Using Time-Dependent Exponential Sources to Model Transients
- Surge Stoppers Ease MIL-STD-1275D Compliance
- LTspice: Modeling Safe Operating Area Behavior of N-channel MOSFETs
- 10A μModule Step-Down Regulator with Advanced Input and Load Protection
- 大型のパッシブ・コンポーネントと置き換えてMIL-STD-1275Dへの適合を容易にする高電圧サージ・ストッパ
- Bench Comparison of Two Overvoltage Protection (Crowbar) Methods: MOSFET vs. Silicon Controlled Rectifier
- 低電圧マイクロプロセッサ、ASIC、FPGAを中間バス電圧サージから保護する降圧μModuleレギュレータ
- Prevent Your Next High Flying Product Launch From Being Grounded
- LTM4641 TechClip – 高効率、出力過電圧保護、過電流保護他
- 300Vのトランジェントから部品を保護する100Vサージ・ストッパー
- No Blocking Diode Needed to Protect Sensitive Circuits from Overvoltage and Reverse Supply Connections
- Protect Mobile Devices from Hot Plug Transients (to 85V) and from Users Who Use the Wrong Power Adapter
- Surge Stopper IC Simplifies Design of Intrinsic Safety Barrier for Electronics Destined for Hazardous Environments
アプリケーション・ノート
サージ・ストッパー、過電圧および過電流保護
| SortOrder | Part# | # of Channels | Power Management Function | Vin Range | Total Quiescent Current (typ) (A) | Circuit Breaker Threshold | Comments | Price (1000+) ($ US) |
|---|---|---|---|---|---|---|---|---|
| 1 | LTC7862 | 1 | Surge Stopper | 4V to 140V | 1.2m | 50mV | 140V High Efficiency Switching Surge Stopper | $3.40 (LTC7862EFE#PBF) |
| 2 | LTC4368 | 1 | Circuit Breaker, OV Disconnect, Reverse Current Blocking, Reverse Input Protection, UV Lockout | 2.5V to 60V | 80µ | ±50mV or +50mV/-3mV | Bidirectional circuit breaker, Voltage window passer with adjustable UV/OV thresholds and reverse in | $1.99 (LTC4368CDD-1#PBF) |
| 3 | LTC4380 | 1 | Circuit Breaker, Current Limit, Reverse Input Protection, Surge Stopper, UV Lockout | 4V to 72V | 8µ | 50mV | Ride-through protection with 8uA Iq, Adjustable output-clamp and circuit-breaker with timer, Shutdow | $2.48 (LTC4380CDD-1#PBF) |
| 4 | LTC4367 | 1 | OV Disconnect, Reverse Input Protection, UV Lockout | 2.5V to 60V | 70µ | - | Voltage window passer with adjustable UV/OV thresholds and reverse input protection, Shutdown mode | $1.75 (LTC4367CDD#PBF) |
| 5 | LTC7860 | 1 | Current Limit, Reverse Input Protection, Switching Surge Stopper | 60V (extendable to 200V+) | 770µ | 95mV | Ride-through PWM switching protection, Adjustable output-clamp with timer, Current limit, Shutdown m | $2.95 (LTC7860EMSE#PBF) |
| 6 | LTM4641 | 1 | Current Limit, OV Disconnect, uModule Regulator, UV Lockout | 4.5V to 38V | 8m | - | 38V, 10A DC/DC µModule Regulator with Advanced Input and Load Protection | $25.95 (LTM4641EY#PBF) |
| 7 | LTC4364 | 1 | Circuit Breaker, Current Limit, Reverse Current Blocking, Reverse Input Protection, Reverse Output Protection, Surge Stopper, UV Lockout | 4V to 80V | 483µ | 50mV | Ride-through protection with ideal diode, Adjustable output-clamp and circuit-breaker with timer, Sh | $3.45 (LTC4364CDE-1#PBF) |
| 8 | LT4363 | 1 | Circuit Breaker, Current Limit, Reverse Input Protection, Surge Stopper, UV Lockout | 4V to 80V | 970µ | 50mV | Ride-through protection, Adjustable output-clamp and circuit-breaker with timer, Shutdown mode, Latc | $2.48 (LT4363CDE-1#PBF) |
| 9 | LTC4366 | 1 | Reverse Input Protection, Surge Stopper | 9V to Over 500V | 159µ | - | Ride-through protection, Floats for high voltage operation, Adjustable output-clamp with timer, Shut | $2.65 (LTC4366CDDB-1#TRPBF) |
| 10 | LTC4365 | 1 | OV Disconnect, Reverse Input Protection, UV Lockout | 2.5V to 34V | 125µ | - | Voltage window passer with adjustable UV/OV thresholds and reverse input protection, Shutdown mode | $1.49 (LTC4365CDDB#TRPBF) |
| 11 | LTC4362 | 1 | Circuit Breaker, OV Disconnect, Reverse Input Protection | 2.5V to 5.5V | 220µ | 1.5A | 5.8V OV threshold, Internal FET and sense resistor, 28V Protection, Reverse input PFET driver, -1 La | $1.60 (LTC4362CDCB-1#TRPBF) |
| 12 | LTC4361 | 1 | Circuit Breaker, OV Disconnect, Reverse Input Protection | 2.5V to 5.5V | 230µ | 50mV | 5.8V OV threshold, 50mV overcurrent threshold, 80V protection, Reverse input PFET driver, -1 Latchof | $1.40 (LTC4361CDC-1#TRPBF) |
| 13 | LTC4360 | 1 | OV Disconnect, Reverse Input Protection | 2.5V to 5.5V | 230µ | - | 5.8V OV threshold, 80V protection, -1 for Shutdown mode, -2 for Reverse input PFET driver | $1.15 (LTC4360CSC8-1#TRPBF) |
| 14 | LT4356MP-2 | 1 | Circuit Breaker, Current Limit, Reverse Input Protection, Surge Stopper, UV Lockout | 4V to 80V | 1.21m | 50mV | Ride-through protection, Adjustable output-clamp and circuit-breaker with timer, -55C to 125C Operat | $5.94 (LT4356MPS-2#PBF) |
| 15 | LT4356MP-1 | 1 | Circuit Breaker, Current Limit, Reverse Input Protection, Surge Stopper | 4V to 80V | 1.21m | 50mV | Ride-through protection, Adjustable output-clamp and circuit-breaker with timer, -55C to 125C Operat | $5.94 (LT4356MPS-1#PBF) |
| 16 | LT4356-3 | 1 | Circuit Breaker, Current Limit, Reverse Input Protection, Surge Stopper | 4V to 80V | 1.21m | 50mV | Ride-through protection, Adjustable output-clamp and circuit-breaker with timer, Shutdown mode, Latc | $1.98 (LT4356CDE-3#PBF) |
| 17 | LT4356-2 | 1 | Circuit Breaker, Current Limit, Reverse Input Protection, Surge Stopper, UV Lockout | 4V to 80V | 1.21m | 50mV | Ride-through protection, Adjustable output-clamp and circuit-breaker with timer, Shutdown mode (aux | $1.98 (LT4356CDE-2#PBF) |
| 18 | LT4356-1 | 1 | Circuit Breaker, Current Limit, Reverse Input Protection, Surge Stopper | 4V to 80V | 1.21m | 50mV | Ride-through protection, Adjustable output-clamp and circuit-breaker with timer, Shutdown mode, Auto | $1.98 (LT4356CMS-1#PBF) |
| 19 | LTC1696 | 2 | OV Disconnect | 0.8V to 24V | 170µ | - | Monitors Two Output Voltages from 0.8V to 24V. Gate drive for SCR crowbar or external N-channel FET | $1.76 (LTC1696ES6#TRPBF) |
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