TCKE712BNL,RF - 13.2V 5A eFuse IC WSON10 | Toshiba
부품 번호: TCKE712BNL,RF ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $1.14 | $1.14 |
| 10 | $1.05 | $10.50 |
| 100 | $0.96 | $96.00 |
| 500 | $0.89 | $445.00 |
| 1,000 | $0.83 | $830.00 |
TCKE712BNL,RF 개요
An eFuse IC (electronic fuse) is a type of power-management protection IC that sits in series with a supply rail and disconnects the load when fault conditions such as overcurrent, short circuit, overvoltage, or undervoltage occur. Unlike a one-time fuse, an eFuse can automatically or manually recover after a fault, making it a building block of modern power management IC architectures in servers, storage systems, IoT devices, and general-purpose power supplies.
Key features of the TCKE712BNL include an adjustable overcurrent limit set by a single external resistor, adjustable overvoltage protection (OVP) and undervoltage lockout (UVLO), short-circuit fast-trip protection, and an adjustable output slew rate controlled by an external capacitor, which limits inrush current during hot-plug and capacitive load start-up. The device also integrates reverse current blocking (RCB) and a fault flag output for system-level fault reporting.
Technically, the part operates from a 4.4 V to 13.2 V input range, covering 5 V, 9 V, and 12 V rails from a single orderable device. The internal low-RDS(on) power MOSFET (about 53-56 mOhm) minimizes voltage drop and conduction loss, while a controlled gate-slew architecture keeps source-to-load turn-on monotonic. Thermal shutdown protects the die under sustained fault conditions, and the flag pin signals fault state to the host controller.
Typical applications include server backplane hot-swap protection, SSD and HDD storage rail protection, IoT node power-path protection, USB and 12 V accessory ports, and general-purpose industrial power supplies where a reusable fuse with adjustable trip points is preferred over discrete fuse plus supervisor circuits.
A key design consideration: size the ILIM resistor so the minimum guaranteed current limit exceeds the worst-case load transient, and set the slew-rate capacitor to balance inrush limiting against acceptable startup time; excessive capacitance on the output increases startup duration.
This page synthesizes distributor pricing, same-family drop-in alternatives, practical design notes, and comparison data not consolidated in the manufacturer datasheet, as of 2026-10-19.
드롭인 대체품: TCKE712BNL,RF — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
TCKE812BNL,RF
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
TCKE808BNL,RF
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
TCKE804BNL,RF
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
TCKE712ANL,RF
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
TCKE800BNL,RF
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
TCKE712BNL,RF 사양
| Product Type | eFuse IC (electronic fuse, hot swap controller) |
| 입력 전압 범위 | 4.4 V to 13.2 V |
| Maximum Continuous Current | 3.65 A |
| Peak Current Capability | 5 A |
| On-Resistance (Ron) | 56 mOhm (53 mOhm typ per Toshiba) |
| Overcurrent Limit | Adjustable via external resistor |
| Overvoltage Protection | Adjustable (OVP) |
| Undervoltage Lockout | Yes (UVLO) |
| Short Circuit Protection | Yes |
| Slew Rate Control | Adjustable via external capacitor |
| Reverse Current Blocking | Yes (RCB) |
| Fault Flag Output | Yes (flag output) |
| 열 차단 | Yes |
| 패키지 | WSON10 (10-pin leadless) |
| 실장 유형 | Surface Mount |
| Applications | Consumer equipment, server, IoT equipment, storage, general purpose power supply |
TCKE712BNL,RF wson10 (10-pin leadless) 핀 구성 가이드
TCKE712BNL,RF(wson10 (10-pin leadless) 패키지)의 핀 구성입니다. 핀 번호, 기능, 연결 다이어그램은 제조사 데이터시트에 정의되어 있습니다. 정확한 풋프린트와 솔더링 지침은 해당 문서를 참조하십시오.
다음에 대한 상세 핀아웃 데이터 없음: TCKE712BNL,RF.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
TCKE712BNL,RF 적합 용도: 6 애플리케이션s: Server Hot-Swap Power Protection, SSD and HDD Storage Rail Protection, IoT Equipment Power-Path Protection, Consumer Equipment DC Input Protection, General-Purpose Industrial Power Supplies, USB and Accessory Port Current Limiting.
Server Hot-Swap Power Protection
Server blades and backplanes require boards to be inserted and removed while 12 V power is live, producing large inrush currents that would otherwise damage connectors and upstream supplies. The TCKE712BNL fits this role because its 4.4 V to 13.2 V input range covers 12 V rails, and its adjustable slew-rate control limits inrush by shaping output voltage ramp with a single external capacitor. The adjustable overcurrent limit via ILIM resistor lets one design cover multiple blade power classes, while short-circuit protection reacts faster than any software-supervised disconnect. The fault flag output reports latch-off events to the BMC, enabling remote fault diagnostics. Toshiba explicitly lists server equipment as a target application. The main trade-off versus a discrete hot-swap MOSFET controller is the internal 53-56 mOhm FET, which limits continuous current to 3.65 A but saves board area and simplifies design.
추천
SSD and HDD Storage Rail Protection
Storage devices such as enterprise SSDs and external HDD enclosures run from 5 V or 12 V rails that can be shorted by backplane hot-plug events or cable faults. The TCKE712BNL protects both rail voltages within its 4.4 V to 13.2 V window, and its reverse current blocking prevents a charged output capacitor from back-feeding the supply when input power is removed - a common failure mode in storage cages with many parallel devices. Its 56 mOhm on-resistance keeps voltage drop below roughly 200 mV at 3.65 A, preserving sequencing margin on 5 V rails. Adjustable OVP guards the drive against mis-cabled supplies, and the reusable-fuse behavior avoids field service after a transient fault. Toshiba lists storage equipment as a primary application. Designers should size the slew capacitor to the drive bulk capacitance to keep startup within controller timeout windows.
추천
IoT Equipment Power-Path Protection
IoT nodes and gateways are often deployed in uncontrolled electrical environments where supply faults, mis-wiring, and surge events are routine. The TCKE712BNL consolidates overcurrent, short-circuit, overvoltage, undervoltage, and reverse-current protection in one 10-pin WSON10 package, replacing a discrete fuse plus voltage supervisor plus discrete FET solution and saving significant board area on compact IoT PCBs. Its low quiescent overhead suits always-on nodes, and the flag output lets a microcontroller log power events for fleet diagnostics. The adjustable OVP is valuable where field power is provided by wall adapters of uncertain quality on 5 V or 12 V inputs. Toshiba lists IoT equipment among its target applications. Because the ILIM threshold is resistor-programmed, one firmware-uniform PCB can be trimmed per SKU simply by changing a single resistor value during manufacturing.
추천
Consumer Equipment DC Input Protection
Consumer products powered by external adapters - set-top boxes, small appliances, audio accessories - face adapter overvoltage, shorted cables, and stalled-motor overcurrent events. The TCKE712BNL addresses all of these within its 4.4 V to 13.2 V range: adjustable OVP clamps the acceptance window to the adapter specification, ILIM-programmed overcurrent limit protects wiring, and thermal shutdown protects against sustained overload without a one-time fuse replacement. This reusable behavior reduces warranty service costs because a transient fault self-clears on power cycle rather than requiring a fuse change. The adjustable slew rate limits audible capacitor charge transients and connector wear. Toshiba lists consumer equipment as a target market. Consumer-grade cost positioning makes it economical to deploy one device per input connector across a product family sharing a common protection circuit.
추천
General-Purpose Industrial Power Supplies
Industrial auxiliary 12 V rails distribute power to sensors, relays, and communication modules whose faults must not bring down the whole cabinet. Using a TCKE712BNL on each branch creates electronic branch protection: the 3.65 A continuous rating covers typical branch loads, the ILIM resistor sets coordinated trip levels per branch, and the flag output feeds a PLC or status LED for immediate fault localization - functionality a glass fuse cannot provide. Reverse current blocking prevents motor back-EMF from pumping energy onto the shared bus, and UVLO/OVP thresholds are adjustable to match 12 V industrial tolerance windows. Short-circuit fast-trip protects wiring during technician mis-wiring. Designers should derate thermally inside sealed enclosures, since at 3.65 A the internal FET dissipates roughly 0.75 W estimated at 56 mOhm.
추천
USB and Accessory Port Current Limiting
Protected 12 V accessory ports and high-current USB-style power outlets in vehicles, kiosks, and industrial panels benefit from the TCKE712BNL combination of fast short-circuit response and user-adjustable current limit. A shorted cable or damaged accessory is isolated within microseconds by the internal fast-trip path, before connector damage occurs, while the adjustable ILIM resistor permits port-specific limits (for example a lower limit on shared hubs and a higher limit on dedicated ports). The 13.2 V maximum input accommodates automotive 12 V load-dump-adjacent conditions when paired with upstream surge protection, and the flag pin drives a per-port status indicator. Adjustable slew rate suppresses contact bounce artifacts at insertion. Estimated conduction loss stays modest for typical 2-3 A port loads: about 0.22-0.50 W at 56 mOhm, usually manageable with a modest copper pour.
추천
추천 제품 요약
엔지니어링 참조 데이터: TCKE712BNL,RF — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | TCKE812BNL,RF | TCKE808BNL,RF | TCKE804BNL,RF | TCKE712ANL,RF | TCKE800BNL,RF |
|---|---|---|---|---|---|---|
| Package | WSON10 | WSON10 - same | WSON10 - same | WSON10 - same | WSON10 - same | WSON10 - same |
| Brand | Toshiba | Toshiba | Toshiba | Toshiba | Toshiba | Toshiba |
| Overcurrent Limit | Adjustable, 3.65 A cont / 5 A peak | Adjustable | Adjustable (lower class) | Adjustable (lower class) | Adjustable | Adjustable (lowest class) |
| Protection Features | OCP, SCP, OVP, UVLO, RCB, flag, thermal shutdown | Same feature set | Same feature set | Same feature set | Same feature set | Same feature set |
| Target Market Grade | Consumer / server / IoT / storage | Higher-reliability grade | Standard | Standard | Previous generation | Entry grade |
| Slew Rate Control | Adjustable via external capacitor | Yes (external capacitor) | Yes (external capacitor) | Yes (external capacitor) | Yes (external capacitor) | Yes (external capacitor) |
주요 차별점
- Higher current class in same WSON10 footprint (vs TCKE808BNL,RF)
- Cost-optimized consumer grade (vs TCKE812BNL,RF)
- Latest B-generation die (vs TCKE712ANL,RF)
설계 노트
The TCKE712BNL dissipates conduction loss in its internal ~56 mOhm FET. Estimated: at the 3.65 A continuous rating, loss is I^2 x R = 13.3 x 0.056 = approximately 0.75 W. The WSON10 relies on PCB copper for heat extraction - provide at least 1 square inch of continuous copper plane connected to the source/ground pins and use thermal vias to inner layers when ambient exceeds 50 C. Verify junction temperature against the datasheet thermal resistance in your actual stackup, as WSON10 theta_JA varies strongly with copper area.
Set the ILIM resistor so the minimum guaranteed current-limit threshold exceeds the worst-case load transient, not just the steady-state current. Capacitive load inrush during hot-plug must be absorbed by the programmed soft-start: choose the slew-rate capacitor so that inrush current (C_load x dV/dt) stays below the ILIM threshold minus load margin. If startup repeatedly trips, increase the slew capacitor before raising ILIM, since raising ILIM weakens short-circuit coordination with upstream protection.
Do not exceed the 13.2 V absolute input condition - automotive or industrial 12 V rails with load-dump transients require upstream TVS clamping. Place the input capacitor within a few millimeters of VIN/GND to minimize parasitic inductance during short-circuit shutdown events. The fault flag polarity must be verified in the datasheet before connecting to a host GPIO, and the flag should not be used as a power-good signal for sequencing without debounce in firmware.
규정 준수 정보
Compliance data not present in provided web sources; Toshiba consumer eFuse parts are typically RoHS-compliant but this must be confirmed on the official Toshiba product page before use in regulated products.
