IPS521R - 5A Fully Protected High Side MOSFET Switch | Infineon
부품 번호: IPS521R ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $2.45 | $2.45 |
| 10 | $2.18 | $21.80 |
| 100 | $1.86 | $186.00 |
| 500 | $1.62 | $810.00 |
| 1,000 | $1.41 | $1,410.00 |
IPS521R 개요
A high-side switch (HSS) is a power-distribution topology that places the switching element between the positive supply rail and the load, returning load current to system ground. Compared with a low-side switch, a high-side switch simplifies load wiring, eliminates ground-referenced load returns, and allows direct interface with logic inputs while providing inherent protection against short-to-ground events. The IPS521R is therefore classified within the broader hierarchy: intelligent power switch -> high-side driver -> power distribution switch -> power management IC.
Key features include a 5A continuous load current rating, integrated active over-temperature shutdown with auto-restart, current-limit foldback, open-load detection in the off state, status feedback through an isolated logic ground, and ESD protection on every pin. The logic ground terminal allows the device to be driven from a low-voltage microcontroller without ground-shift issues, and the diagnostic flag can be wired directly to an MCU interrupt to report fault conditions.
The IPS521R is built on International Rectifier's proprietary HEXFET power-MOSFET process combined with mixed-signal CMOS control, yielding a single monolithic die that contains both the power stage and the protection logic. The active clamp structure uses the MOSFET body-drain avalanche capability to absorb unclamped inductive transients, which is critical when switching solenoids, relays, and motors that store energy in their windings.
Typical applications include industrial PLC output modules, automotive body electronics (lamp drivers, solenoid drivers, valve drivers), 24V building automation, and battery-powered equipment requiring eFuse-style protection. The device is pin-compatible with the legacy IPS521 and IPS521S families, simplifying existing designs.
When designing with the IPS521R, ensure adequate heatsinking for the TO-220 tab and respect the SOA envelope for inrush loads such as incandescent lamps and motor startup. Decouple Vcc with at least 1uF of low-impedance capacitance placed within 5 mm of the supply pin.
드롭인 대체품: IPS521R — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: IPS521R (동일 폼 팩터 및 풋프린트) — 차이점: Package, Mounting Type, Output Configuration, Product Type, Short-Circuit Protection.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
IPS521
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
IPS521G
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
IPS521S
✅ 드롭인✓ 재고 있음
$2.6 / 개
데이터시트 보기 →VN5E010MH
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
BTS6143DAUMA1
✅ 드롭인✓ 재고 있음
$1.21 / 개
데이터시트 보기 →IPS521R 최대 정격 & 전기적 특성
| 기능 | High-side intelligent power switch (IPS) |
| 토폴로지 | 1:1 N-Channel high-side switch |
| Continuous Load Current | 5 A |
| Current Limit (Ilim) | Internally regulated (see datasheet curve) |
| Over-Temperature Protection | Yes, with auto-restart |
| Short-Circuit Protection | Yes, current-limit foldback |
| Active Clamp (Inductive Load) | Yes |
| ESD Protection | Yes, on all pins |
| Open-Load Detection | Yes, in off state |
| Status Feedback / Diagnostic | Yes, via isolated logic ground |
| 동작 온도 | -40C to +125C (junction) |
| 패키지 | TO-220-5 (5-lead TO-220AB) |
| 실장 유형 | Through-hole |
| RoHS 상태 | Compliant |
IPS521R 핀 구성
| 핀 1 | Vcc — Logic supply input (5V/3.3V referenced to GND) |
| 핀 2 | GND — Logic ground, isolated from load return |
| 핀 3 | IN — Logic input - drives high-side MOSFET gate |
| 핀 4 | STATUS — Open-drain diagnostic feedback (fault indicator) |
| 핀 5 | LOAD — High-side output to the load (drain of internal MOSFET) |
일반적인 애플리케이션
IPS521R 적합 용도: 6 애플리케이션s: Industrial PLC Output Module, Automotive Body Electronics - Lamp and Solenoid Drivers, 24V Building Automation and HVAC Valves, Battery-Powered Equipment eFuse Replacement, Relay and Contactor Coil Driver, Process Control Valve Actuation.
Industrial PLC Output Module
The IPS521R is well suited to 24V industrial PLC discrete-output stages driving relays, solenoids, and indicator lamps. Its 5 A continuous load rating covers most field-side actuators, while the integrated short-circuit current limit protects wiring against field miswiring - a common failure in plant environments. The active clamp absorbs the inductive kickback when de-energizing 24V relay coils, eliminating external freewheeling diodes and reducing PCB area by roughly 30% versus a discrete MOSFET+fuse design. Status feedback to the PLC's isolated logic input simplifies fault diagnostics and supports predictive maintenance routines across the entire I/O rack.
추천
Automotive Body Electronics - Lamp and Solenoid Drivers
The IPS521R drops directly into automotive body-electronics modules driving incandescent lamps, LED strings, and small solenoids from a 12V battery rail. Its built-in short-circuit protection handles the cold-filament inrush of an incandescent bulb (10x nominal current for tens of milliseconds), while over-temperature auto-restart tolerates the sustained thermal stress without latching off. The logic-ground isolation lets a 3.3V or 5V MCU drive the IPS521R safely without ground-shift concerns, and the open-load detection flags a burned-out bulb back to the BCM. Operating junction range of -40C to +125C covers under-hood and under-cabin automotive environments.
추천
24V Building Automation and HVAC Valves
In 24V building-automation systems, the IPS521R drives pneumatic valve actuators, damper motors, and relay coils in HVAC control panels. Its 5 A continuous rating handles most commercial-grade damper actuators that draw 1-3 A inrush. The diagnostic status pin wires to a BACnet or Modbus supervisory controller to log actuator faults centrally. The integrated protection eliminates the need for inline fuses at every actuator output, simplifying maintenance and reducing panel-builder assembly time. The TO-220-5 through-hole package supports hand-soldered service and field replacement without specialized tooling.
추천
Battery-Powered Equipment eFuse Replacement
The IPS521R replaces traditional glass fuses or PTC self-resetting devices in battery-powered equipment such as e-bike controllers, portable test instruments, and industrial hand tools. When a short occurs the IPS521R current-limits instead of blowing, then auto-restarts once the fault clears - eliminating fuse-replacement downtime in the field. Its low quiescent draw in the off state preserves battery life between uses, and the status feedback to the host MCU enables fault logging for warranty analysis. Compared with a discrete MOSFET+eFuse IC solution, the IPS521R saves roughly 40% of PCB area and BOM cost.
추천
Relay and Contactor Coil Driver
The IPS521R is ideal as a low-side-replacement high-side driver for 12V/24V relay coils, contactor coils, and small motor windings. When the coil de-energizes, the IPS521R's active clamp dissipates the magnetizing energy safely inside the silicon rather than arcing across relay contacts - extending mechanical relay life by 2-3x. The 5 A rating comfortably handles 24V/2 A industrial relays with margin. Because the IPS521R can be duty-cycled from an MCU PWM output, it can also implement soft-start relay pull-in to reduce contact welding on capacitive loads.
추천
Process Control Valve Actuation
In process-control cabinets the IPS521R drives 24V solenoid valves, pneumatic actuators, and small hydraulic valves where reliability is paramount. Its diagnostic output reports open-circuit coils and short-circuited wiring to a PLC or DCS, enabling predictive maintenance on critical process lines. The wide -40C to +125C junction operating range allows cabinet-internal or remote-field mounting without derating. Because the IPS521R replaces a discrete MOSFET, fuse, and freewheeling-diode triplet, control-panel builders reduce component count and assembly time significantly while improving MTBF.
추천
추천 제품 요약
엔지니어링 참조 데이터: IPS521R — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | IPS521 | IPS521G | IPS521S | VN5E010MH | BTS6143D |
|---|---|---|---|---|---|---|
| Package | TO-220-5 | TO-220-5 - same | TO-220-5 - same | TO-220-5 - same | TO-220-5 equivalent leadform | TO-220-5/TO-252 - same footprint family |
| Brand | Infineon | Infineon | Infineon | Infineon | STMicroelectronics | Infineon |
| Continuous Load Current | 5 A | 5 A | 5 A | 5 A | 5 A | 14 A |
| Current Limit (Ilim) | Internally regulated (see datasheet) | Same as IPS521R | Minor trim variant | Same as IPS521R | Cross-brand - verify datasheet | Higher Ilim (~14 A class) |
| Over-Temperature Protection | Yes, auto-restart | Yes, auto-restart | Yes, auto-restart | Yes, auto-restart | Yes | Yes |
| Active Clamp (Inductive) | Yes | Yes | Yes | Yes | Yes | Yes |
| Open-Load Detection | Yes | Yes | Yes | Yes | Yes (verify pin mapping) | Yes |
| Status Feedback | Yes, isolated logic ground | Yes | Yes | Yes | Yes (verify polarity) | Yes |
주요 차별점
- Integrated logic-ground isolation on a single die (vs Discrete MOSFET + opto-isolated driver)
- Active clamp absorbs inductive transients on-chip (vs Discrete MOSFET requiring external freewheeling diode)
- Open-load detection in off state (vs Standard IPS without diagnostic feedback)
설계 노트
Estimated: at 5 A continuous load with a typical Rds(on) of ~50 milliohms, conduction loss is approximately 1.25 W. Mount the TO-220 tab to a heatsink with thermal resistance below 10 C/W to keep junction rise under 12.5C. For 100% duty-cycle 5 A operation in a 60C ambient, a 5 C/W or better heatsink is recommended.
Place a 1uF X7R ceramic decoupling capacitor within 5 mm of the Vcc pin to GND. Use wide PCB traces (>= 2 oz copper, 5 mm minimum width) on the LOAD and battery return paths to handle 5 A continuous and reduce voltage drop. Keep logic-side traces (IN, STATUS) away from the LOAD node to avoid capacitive coupling into the MCU.
Do not exceed the SOA curve during inrush loads such as incandescent lamps (10x inrush for ~10 ms) or motor startup (6-8x for ~100 ms). The current-limit circuit protects the silicon but sustained operation at Ilim will trigger thermal shutdown - verify inrush profiles against the SOA graph in the datasheet. Also, the STATUS pin is open-drain and requires an external pull-up resistor to Vcc (typically 10 kohm).
Keep the load-return path separate from the logic-ground path until they meet at the IPS521R GND pin. This separation prevents load-current ground-shift from disturbing the logic input threshold. If the MCU ground and load ground are at different potentials, route STATUS and IN through optocouplers or level shifters to maintain isolation.
규정 준수 정보
RoHS compliant per Heisener product listing; AEC-Q100 status not explicitly published for IPS521R - confirm with Infineon for automotive grade qualification.
