TPS259230DRCR - 5V 5A 28mOhm eFuse with BFET Driver | TI
部品番号: TPS259230DRCR ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $0.92 | $0.92 |
| 10 | $0.82 | $8.20 |
| 100 | $0.69 | $69.00 |
| 500 | $0.58 | $290.00 |
| 1,000 | $0.51 | $510.00 |
| 3,000 | $0.44 | $1,320.00 |
TPS259230DRCR 概要
An eFuse (electronic fuse) is a solid-state circuit-protection and power-management IC that replaces discrete fuses, MOSFETs, and supervision ICs. It sits between a power source and its load, protecting against over-current, short-circuit, over-voltage, inrush current, and reverse-current faults. Compared to a polymeric PTC or glass fuse, an eFuse is resettable, programmable, and far faster - reacting in microseconds rather than seconds. It belongs to the broader category of hot-swap controllers / power management ICs in the TI power-tree hierarchy. The TPS259230DRCR adds an external N-FET blocking driver, enabling true input-side reverse-current blocking.
Key features include an adjustable current-limit threshold from 1 A to 5 A (set by ILIM pin), 28 mOhm typical on-resistance, integrated over-voltage clamp, programmable dV/dt soft-start, fault output (FLG), and thermal shutdown. The package thermal resistance (theta_JA) is approximately 49 C/W on a standard JEDEC 2s2p board.
The device uses a charge-pump gate driver to control an external N-channel blocking MOSFET for true reverse-current blocking (BFET_CTRL pin). The internal control loop combines current sensing, SOA-aware fold-back, and programmable blanking to distinguish real faults from benign transients such as load-step or hot-plug events. The 28 mOhm internal pass element minimizes conduction loss and on-chip heat, while the BFET driver offloads continuous reverse-current dissipation to the external FET.
Typical applications include 5-V rail hot-swap protection in servers, SSDs and storage cards, USB Type-C VBUS protection, fan bay surveillance, and industrial PLC I/O protection. The wide SOA and adjustable ILIM make the part well suited to high-transient capacitive loads where conventional fuses would nuisance-trip.
When using this part, select the external N-FET blocking MOSFET for Vds rating that comfortably exceeds the highest expected input surge, and size it for the continuous load current. Place the sense resistor or ILIM setting accurately, and follow the dV/dt capacitor recommendation to control inrush. Always honor the -40C to +85C operating junction temperature envelope.
This page synthesizes distributor pricing, drop-in alternatives, and design considerations not found in the manufacturer datasheet alone - giving engineers a one-stop reference for sourcing and designing with the TPS259230DRCR.
ドロップイン代替品: TPS259230DRCR — 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。
クイック比較ツール — 並列比較する代替部品を選択:
TPS259230DRCT
✅ ドロップイン📋 参考代替品（カタログ未掲載）
TPS259231DRCR
✅ ドロップイン📋 参考代替品（カタログ未掲載）
TPS259240DRCR
✅ ドロップイン📋 参考代替品（カタログ未掲載）
TPS259241DRCR
✅ ドロップイン📋 参考代替品（カタログ未掲載）
TPS259250DRCR
✅ ドロップイン📋 参考代替品（カタログ未掲載）
TPS259230DRCR 仕様
| 機能 | eFuse (Electronic Fuse) / Hot-Swap Controller |
| 入力電圧範囲 | 4.5 V to 5.5 V |
| Continuous Load Current | 1 A to 5 A (adjustable via ILIM) |
| On-Resistance (typ) | 28 mOhm |
| Over-Voltage Protection | Yes (integrated clamp) |
| Reverse-Current Blocking | Yes (external N-FET via BFET driver) |
| Soft-Start (dV/dt) | Programmable via CSS capacitor |
| Fault Output | Yes (FLG pin, active-low) |
| 熱シャットダウン | Yes |
| 動作温度 | -40 C to +85 C |
| パッケージ | 10-pin VSON (DRC) 3x3 mm |
| 実装タイプ | Surface Mount |
| RoHS ステータス | Compliant |
| Lead-Free | Yes |
TPS259230DRCR ピン構成
| ピン 1 | VIN — Input supply (4.5 V to 5.5 V) |
| ピン 2 | VOUT — Output to load (protected rail) |
| ピン 3 | GND — Ground |
| ピン 4 | ILIM — Current-limit programming resistor |
| ピン 5 | BFET_CTRL — External blocking FET gate driver |
| ピン 6 | dVdt — Soft-start capacitor |
| ピン 7 | EN/UVLO — Enable / under-voltage lockout |
| ピン 8 | FLG — Fault output (active-low) |
| ピン 9 | NC — Not connected (per datasheet) |
| ピン 10 | PAD — Thermal pad (connect to GND) |
主な用途
TPS259230DRCR の用途: 6 件s: 5-V Server Hot-Swap / Hot-Plug Protection, USB Type-C VBUS Hot-Swap Protection, Fan Bay Hot-Swap Surveillance, Industrial PLC 5-V I/O Protection, Portable SSD / Storage Card Power-Path Protection, 5-V Load Switch for Battery-Powered IoT / Wearable.
5-V Server Hot-Swap / Hot-Plug Protection
The TPS259230DRCR's 28 mOhm RDS(on) and 5-A adjustable ILIM let it act as the primary 5-V rail hot-swap element on server motherboards and storage backplanes, where SATA/SAS SSDs present high inrush on insertion. The integrated BFET driver adds true reverse-current blocking for redundant supply OR-ing. Programmable dV/dt soft-start via the CSS capacitor suppresses inrush to within IEEE SS-3-9 / server PSU hold-up limits, while the FLG pin feeds the BMC for fault telemetry. Engineers typically pair the TPS259230DRCR with a TVS such as SMBJ5.0A at the input and a TVS at the output for robust hot-plug behavior.
おすすめ
USB Type-C VBUS Hot-Swap Protection
USB Type-C VBUS can be back-driven by a downstream device during power-role swaps; the TPS259230DRCR's external N-FET blocking driver (BFET_CTRL) prevents reverse current when the device is unplugged. The 4.5-V to 5.5-V VIN window matches the USB VBUS range exactly, and the 1-A to 5-A ILIM range covers USB Type-C default-current advertisement up to 5 V @ 5 A. Compared to a TPS2051/TPS2055 USB switch, the TPS259230DRCR adds programmable current limit, fault flag, and true reverse-current blocking in one IC. Place a 1-uF VBUS bulk cap upstream and follow the BFET drain-source trace guidance for clean switching.
おすすめ
Fan Bay Hot-Swap Surveillance
Server and telecom fan bays are prone to backplane shorts when a failing fan is hot-swapped; the TPS259230DRCR's fast short-circuit response and 28 mOhm pass element protect the backplane from catastrophic fan-short events. The FLG pin can be wired to the fan controller or BMC for predictive failure telemetry. With 5-A ILIM, the part easily handles inrush of multi-fan trays while remaining within SOA. The same VSON-10 DRC footprint as other TPS2592x parts enables a single PCB layout to support 3-A, 5-A, and wide-VIN fan-bay variants without redesign.
おすすめ
Industrial PLC 5-V I/O Protection
Industrial 24-V PLC systems often derive a 5-V logic supply that must survive field wiring faults. The TPS259230DRCR adds a 28-mOhm eFuse with adjustable ILIM and BFET reverse-block at the 5-V rail, protecting downstream logic and sensors from field-induced shorts and back-feeds. The -40 C to +85 C industrial temperature range and integrated OVP match PLC cabinet environments. The BFET topology also protects against reverse polarity at the 5-V rail when an external PSU is wired incorrectly during commissioning. Typical BOM pairs the eFuse with a TVS and PTC for layered protection.
おすすめ
Portable SSD / Storage Card Power-Path Protection
Portable SSDs and removable storage cards draw high inrush on insertion and are vulnerable to host-side back-drive; the TPS259230DRCR's BFET driver blocks reverse current when the device is unplugged, preserving host-side rail integrity. The 28 mOhm on-resistance adds minimal voltage drop on a 5-V rail (140 mV at 5 A), preserving headroom for the SSD's 3.3-V/1.8-V LDO chain. The adjustable dV/dt soft-start can be tuned to match the SSD's bulk-cap bank to limit inrush below USB or NVMe enclosure hold-up limits. The VSON-10 3x3 mm package is ideal for space-constrained M.2 / U.2 accessory boards.
おすすめ
5-V Load Switch for Battery-Powered IoT / Wearable
Battery-powered IoT and wearable designs benefit from a 5-V load switch that can block reverse current when the device is unplugged or replaced; the TPS259230DRCR's BFET_CTRL pin drives an external N-FET to provide true isolation. The 28 mOhm internal pass element minimizes quiescent drain in always-on paths, and the programmable ILIM protects Li-ion chargers from shorted cables. Engineers typically use the FLG pin as an interrupt to the host MCU to signal cable-disconnect events without a dedicated load switch. The VSON-10 DRC 3x3 mm package supports compact wearable form factors.
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: TPS259230DRCR — 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 | TPS259230DRCT | TPS259231DRCR | TPS259240DRCR | TPS259241DRCR | TPS259250DRCR |
|---|---|---|---|---|---|---|
| Package | VSON-10 (DRC) 3x3 mm | VSON-10 (DRC) 3x3 mm - same | VSON-10 (DRC) 3x3 mm - same | VSON-10 (DRC) 3x3 mm - same | VSON-10 (DRC) 3x3 mm - same | VSON-10 (DRC) 3x3 mm - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Input Voltage Range | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 13.8 V |
| Adjustable Current Limit | 1 A to 5 A | 1 A to 5 A | 1 A to 5 A (variant) | Higher range (5 A to 10 A class) | Higher range variant | 0.5 A to 5 A |
| BFET Reverse-Current Block | Yes (external N-FET) | Yes | Yes | Yes | Yes | Yes |
| Fault Output (FLG) | Yes | Yes | Yes | Yes | Yes | Yes |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
主な差別化要因
- Integrated BFET driver for true reverse-current blocking （vs TPS2559DRCR)
- Lower on-resistance in same footprint （vs TPS2560DRCR)
- Adjustable ILIM with same VSON-10 footprint as TPS259240DRCR （vs TPS259240DRCR)
- Programmable dV/dt soft-start prevents USB Type-C VBUS inrush faults （vs TPS2051B-type DR class)
設計ノート
Estimated: at VIN = 5.0 V, VOUT = 5.0 V, IOUT = 5 A continuous, conduction loss is I^2 x R = 25 x 0.028 = 0.7 W. With theta_JA of ~49 C/W on a JEDEC 2s2p board, junction rise is ~34 C above ambient. For sustained 5 A in enclosed chassis, provide at least 100 mm^2 of copper pour on the thermal pad and VIN/VOUT traces to keep Tj below 125 C. The external BFET offloads reverse-current dissipation; size it for Vds rating 2x the maximum VIN transient and the same 5 A continuous rating.
Place input bulk capacitance (>= 1 uF ceramic) as close as possible to VIN pin to suppress input ringing during hot-plug events. Place the dV/dt capacitor (typically 1 nF to 100 nF) directly at the dVdt pin - the soft-start ramp is set by the internal 10 uA source and this CSS capacitor. The BFET gate driver trace should be kept short (<5 mm) to avoid parasitic coupling; route VOUT and the BFET drain together to minimize load-step ringing.
Do not omit the ILIM resistor - leaving ILIM floating disables current-limit programming and the part may default to minimum or maximum trip unpredictably. The BFET must be an N-channel logic-level FET; using a standard-level N-FET will not turn on at 5-V VGS. Do not exceed 5.5 V on VIN; the part does not tolerate 12-V transients. Place a TVS such as SMBJ5.0A at VIN if the upstream supply has inductive kick-back or hot-plug surges.
The FLG pin is an open-drain output requiring a pull-up (10 k to 100 k) to a logic rail. It pulls low during over-current, over-voltage, and thermal shutdown events; debounce in firmware if the cable environment can cause false triggers. Keep the FLG trace away from the BFET gate driver to avoid coupling during fault events. The EN/UVLO pin has a precise internal reference - use a resistor divider for under-voltage lockout programming rather than tying it directly to VIN when monitoring a battery.
コンプライアンス情報
RoHS and REACH compliant per TI product page. Not AEC-Q100 qualified - use TPS259230-Q1 variants if AEC-Q100 is required.
