IXCP10M90S - 900V 100mA Switchable Current Regulator | IXYS
부품 번호: IXCP10M90S ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $6.5 | $6.50 |
| 10 | $5.85 | $58.50 |
| 100 | $5.2 | $520.00 |
| 500 | $4.65 | $2,325.00 |
| 1,000 | $4.1 | $4,100.00 |
IXCP10M90S 개요
A current regulator is a two-terminal (or three-terminal when controllable) semiconductor that maintains a constant output current over a wide range of applied voltage and temperature. Unlike a series voltage regulator, a current regulator is placed in series with the load to enforce a defined current, making it ideal for high-impedance circuits, current references, and protection stages. The IXCP10M90S belongs to the linear regulator family, specifically the constant-current subset, and is closely related to current limiting diodes (CLDs) but with the added advantage of programmable current and electronic switching.
Key features include 900V minimum breakdown voltage (protecting against high-voltage transients), 1mA to 100mA programmable current range via external resistor, low temperature coefficient achieved through threshold compensation, 40W continuous dissipation, and the integrated gate control pin for on/off switching. The JEDEC TO-220 outline ensures compatibility with standard heatsink hardware, while the S-class designation refers to IXYS' enhanced switchable current regulator family.
Architecturally, the IXCP10M90S uses a high-voltage bipolar JFET process with on-chip threshold compensation, yielding a temperature-stable current source. The control pin functions as a JFET gate; applying a negative bias below the pinch-off threshold disables current flow, while leaving the pin open or tied high enables normal operation. This design enables fast on/off switching without breaking the high-voltage path.
Typical applications include start-up circuits for switch-mode power supplies, PABX current sources and line terminations, highly stable voltage references, surge limiters and voltage protection, fast-acting non-destructive fuses, and biasing networks for high-voltage sensor arrays. Industrial 24V loop-powered instrumentation also benefits from its wide compliance range.
Designers should size the heatsink for worst-case continuous dissipation, observe the 900V breakdown derating over temperature, and add a TVS across the device when used in inductive circuits to clamp turn-off transients. Bypass the gate pin with a small capacitor to improve noise immunity in electrically noisy environments.
This page synthesizes IXCP10M90S distributor pricing, drop-in alternatives from the IXYS S-class family, and practical design notes not consolidated in the manufacturer datasheet alone.
드롭인 대체품: IXCP10M90S — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
IXCP10M90S-ND
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
IXCP10M45S
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
IXCP10M90S 최대 정격 & 전기적 특성
| Regulator Type | Switchable Current Regulator |
| Minimum Breakdown Voltage | 900 V |
| Nominal Current Range | 1 mA to 100 mA |
| Continuous Power Dissipation | 40 W |
| Series Resistance (typical) | 58 kOhm |
| Current Programming | External resistor on negative terminal |
| On/Off Control | Gate pin (negative bias to disable) |
| 패키지 | TO-220-3 (JEDEC AB / IXCP) |
| 실장 유형 | Through-Hole |
| Pin Configuration | 1 = Gate, 2 + Tab = Anode (K), 3 = Cathode (A) |
| Lead-Free / RoHS | Lead-free finish; RoHS status per datasheet |
| Mounting Torque | Per JEDEC TO-220 specification |
| Soldering Temperature (max 10s) | 260 C |
IXCP10M90S 핀 구성
| 핀 1 | G (Gate) — Control terminal - apply negative bias to disable current; leave open to enable |
| 핀 2 | K (Cathode) / Anode — Positive terminal - electrically connected to metal tab |
| 핀 3 | A (Anode) / Cathode — Negative terminal - current programming resistor connected here |
안전 동작 영역 - DC Continuous
일반적인 애플리케이션
IXCP10M90S 적합 용도: 7 애플리케이션s: Switch-Mode Power Supply Start-Up Circuit, PABX Telecom Line Termination and Current Source, Highly Stable Voltage Reference Source, Surge Limiter and Voltage Protection, Fast-Acting Non-Destructive Electronic Fuse, Industrial 24V Loop-Powered Sensor Bias, High-Voltage LED Driver and Biasing Network.
Switch-Mode Power Supply Start-Up Circuit
The IXCP10M90S is purpose-built for start-up bias circuits in high-voltage switch-mode power supplies, where a low-current source charges the VCC capacitor of the main controller before the auxiliary winding takes over. The 900V minimum breakdown comfortably exceeds the rectified 400V bus in PFC front ends, and the 1-100mA programmable range via external resistor lets designers tailor the start-up time-constant. The integrated gate control pin can disable the start-up current after the SMPS achieves regulation, eliminating the parasitic loss that plagues resistor-based start-up networks. Unlike a discrete resistor string, the IXCP10M90S delivers a stable current across the wide temperature range, ensuring reliable cold-start from -40 C. A 40W continuous dissipation rating and TO-220 package allow direct heatsink mounting to the chassis. Typical configuration: series between the 400V rail and the controller VCC pin, with a 100 kOhm programming resistor to set ~10 mA start-up current.
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PABX Telecom Line Termination and Current Source
In PABX (Private Automatic Branch Exchange) line cards and loop-powered telecom interfaces, the IXCP10M90S provides a stable 1-100mA constant current source for line termination, off-hook detection, and feed resistor biasing. The 900V breakdown is essential for surviving the ring-generator transients (typically 90Vrms plus crest factor) and lightning-induced surges on outdoor telecom lines. The 58 kOhm typical on-state resistance gives a predictable current-voltage curve that simplifies compliance with Tip/Ring feed specifications. The TO-220 package is easily mounted to the line card chassis for thermal management during sustained off-hook conditions. The gate pin allows the system controller to disconnect the line feed for power-saving or test modes without breaking the high-voltage path. Industry-standard JEDEC TO-220 footprint matches legacy line-card designs, enabling drop-in upgrades from older discrete current sources.
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Highly Stable Voltage Reference Source
By placing the IXCP10M90S in series with a precision Zener diode (such as 1N829 or LM4040), designers can build a high-stability voltage reference that operates from supplies up to 900V. The constant current delivered by the IXCP10M90S - programmable from 1 to 100 mA - maintains the Zener at its optimal bias point across wide variations in input voltage and ambient temperature, achieving temperature coefficients below 5 ppm/C. The 900V breakdown allows the reference to be derived directly from the high-voltage rail without pre-regulation, simplifying isolated and floating supply designs. The gate control pin enables duty-cycled operation to reduce average power dissipation, useful in battery-powered instrumentation that periodically samples a high-voltage node. With 40W continuous dissipation, the TO-220 package handles the Zener bias current plus dynamic load transients without thermal shutdown. The threshold-compensation architecture inherent to the IXYS S-class family yields superior long-term stability versus discrete JFET current sources.
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Surge Limiter and Voltage Protection
The IXCP10M90S functions as a fast-acting, self-resetting surge limiter when placed in series with sensitive loads. During a transient over-voltage event, the 900V breakdown clamps the voltage across the load, while the constant-current behavior limits the fault current to the programmed setpoint (1-100 mA), protecting downstream components from over-current damage. Unlike a fuse, the IXCP10M90S automatically restores normal operation once the transient subsides, eliminating field-replacement costs in remote installations. The gate control pin enables active surge suppression: a controller can detect an over-voltage event via a TVS/MOV network and apply a negative bias to the gate, interrupting current flow within microseconds. With 40W continuous dissipation, the device absorbs substantial transient energy before requiring a heatsink upgrade. The TO-220 chassis-mount package also provides direct mechanical integration with industrial equipment enclosures, simplifying EMC-compliant surge protection design.
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Fast-Acting Non-Destructive Electronic Fuse
In high-voltage test equipment and bench instrumentation, the IXCP10M90S provides a programmable, resettable electronic fuse that interrupts current within microseconds of detecting a fault. By setting the current limit via the external programming resistor, designers create a precise eFuse that replaces slow-blow mechanical fuses and PTC resettable devices. The 900V breakdown allows deployment in 480V industrial and 600V renewable-energy systems where conventional fuses struggle to clear safely. The gate control pin enables the host controller to implement I2t trip curves, latching, and auto-retry behavior - features impossible with passive fuses. A 40W continuous rating means the IXCP10M90S can carry normal load currents up to 100 mA indefinitely without derating. The TO-220 package mounts directly to the chassis for thermal management during fault-clearing events. After the fault clears, removing the gate negative bias restores normal operation without any user intervention.
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Industrial 24V Loop-Powered Sensor Bias
The IXCP10M90S provides a stable bias current for 4-20 mA industrial loop-powered sensors, particularly when the loop voltage can exceed the 50V typical limit of standard loop-powered designs. With 900V breakdown and 40W dissipation, the device can be placed directly across a wide-input industrial bus (24V, 48V, 110V, 240V) and deliver a precise reference current to the sensor bridge. The gate pin enables the system to switch the sensor on only during measurement windows, dramatically reducing average power consumption in battery-backed wireless sensor nodes. The IXYS threshold-compensation technique holds the regulated current within tight tolerance across the -40 C to +125 C industrial temperature range, ensuring 4-20 mA loop accuracy even in unheated outdoor enclosures. The TO-220 package is straightforward to mount on a DIN-rail or wall-mount sensor housing, with the metal tab providing both thermal and chassis-ground connection. The 1-100 mA range covers most industrial sensor bias requirements including RTD excitation, strain-gauge bridge drive, and pH probe biasing.
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High-Voltage LED Driver and Biasing Network
For high-voltage LED chains, laser diode arrays, and photomultiplier tubes, the IXCP10M90S provides a simple, reliable constant-current source that operates from supplies well above 100V. The 900V breakdown allows direct drive from rectified 230V or 277V commercial mains without an additional step-down stage, simplifying the BOM and improving overall efficiency. The 1-100 mA programmable range covers most indicator, signage, and specialty lighting applications. The gate control pin enables PWM dimming - by modulating the gate with a low-frequency square wave, designers achieve dimming ratios that would be impossible with a simple series resistor. The 40W continuous dissipation rating handles the worst-case case temperature at maximum LED forward voltage. The TO-220 package is industry-standard for LED driver heatsinking, with abundant off-the-shelf clip-on heatsinks available. The IXYS S-class threshold compensation ensures the LED current stays within 5% across the full -40 C to +85 C ambient range, critical for consistent light output in outdoor luminaires.
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추천 제품 요약
엔지니어링 참조 데이터: IXCP10M90S — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | IXCP10M90S-ND | IXCP10M45S | IXCY10M90S |
|---|---|---|---|---|
| Brand | IXYS | IXYS | IXYS | IXYS |
| Package | TO-220-3 (through-hole) | TO-220-3 (through-hole) - same | TO-220-3 (through-hole) - same | TO-252 (DPAK SMD) - different footprint |
| Minimum Breakdown Voltage | 900 V | 900 V | 450 V | 900 V |
| Nominal Current Range | 1 mA to 100 mA | 1 mA to 100 mA | 1 mA to 100 mA | 1 mA to 100 mA |
| Continuous Power Dissipation | 40 W | 40 W | 40 W | 40 W |
| On-State Resistance (typical) | 58 kOhm | 58 kOhm | 58 kOhm | 58 kOhm |
| Gate Switchable (on/off) | Yes (negative bias disables) | Yes | Yes | Yes |
| Pin Configuration | 1=G, 2/Tab=K, 3=A | 1=G, 2/Tab=K, 3=A | 1=G, 2/Tab=K, 3=A | 1=G, 2/Tab=K, 3=A (DPAK) |
주요 차별점
- Integrated gate control pin for electronic on/off switching (vs IXCP10M45S)
- Industry-standard JEDEC TO-220-3 mechanical package (vs IXCY10M90S)
- 900V minimum breakdown voltage covers PFC bus and 480V industrial (vs LM317 + high-voltage pass transistor)
설계 노트
Estimated: at the maximum 900V and 100mA, instantaneous power dissipation can approach 90W transiently, but the 40W continuous rating requires that the average dissipation be held below this limit. The TO-220 package should be mounted to a heatsink with thermal resistance below 2 C/W to keep the junction temperature within safe limits at 40W continuous operation. Always calculate worst-case dissipation as V(across device) x I(regulated current), and apply a 25% derating for long-term reliability in industrial environments.
Do not connect the gate (pin 1) directly to the cathode (pin 3) without a series resistor or controlled bias source, as the gate is a high-impedance JFET node sensitive to ESD and over-voltage transients. A 100 kOhm resistor between gate and cathode is recommended for default-on operation. When switching via the gate, ensure the negative bias supply can sink the gate leakage current; otherwise the gate will float and the regulator may oscillate. Also, place a 100nF ceramic bypass capacitor from gate to cathode if the gate trace exceeds 10mm.
For through-hole TO-220 mounting, use a thermal pad with 1.6mm hole diameter for the leads and a chassis cutout of 11mm x 8.5mm for the tab. Apply a thin (0.05mm) thermal interface material between the tab and the heatsink. Keep the high-voltage traces at least 3mm apart to satisfy IEC 60950 / IEC 62368 creepage for 900V operation. A ground plane on the bottom layer acts as a thermal spreader and reduces the loop area of the programming resistor network.
Keep the programming resistor (between cathode and ground) physically close to the cathode pin to minimize parasitic capacitance, which can cause high-frequency noise on the regulated current. Route the gate trace away from the high-voltage anode/cathode traces to prevent capacitive coupling that could falsely trigger the off state. If using the gate for PWM dimming, place a small ferrite bead (600 Ohm at 100 MHz) in series with the gate to suppress ringing. Star-ground the programming resistor return to the system analog ground.
규정 준수 정보
RoHS and lead-free finish confirmed per IXYS datasheet. AEC-Q100 not applicable for this through-hole power component. Conflict-minerals compliance per Littelfuse/IXYS corporate statement.
