BTS4880R - 8-Ch 24V Smart High-Side Switch 200mΩ | Infineon
料号： BTS4880R ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $7.12 | $7.12 |
| 10 | $6.48 | $64.80 |
| 100 | $5.78 | $578.00 |
| 500 | $5.21 | $2,605.00 |
| 1,000 | $4.69 | $4,690.00 |
BTS4880R 概述
A high-side switch (also called a high-side driver or PROFET) is a power semiconductor device that sits between the supply rail and the load, controlling current flow to the load while protecting both itself and the wiring harness from fault conditions. The BTS4880R belongs to Infineon's Classic PROFET family, which is a generation of self-protected smart power switches that replace electromechanical relays and discrete fuse/MOSFET circuits in 12 V and 24 V automotive and industrial applications, providing a smaller PCB footprint, lower quiescent current, and built-in diagnostic feedback.
Key features include 200 mΩ typical per-channel R_DS(on) at 25 °C, 0.625 A nominal load current, load-dump robustness per ISO 7637-1 / DIN 40839, CMOS-compatible logic inputs, internal charge pump to drive the N-channel MOSFET outputs, and a common diagnostic output with open-load detection in OFF state. The device operates across an extended -40 °C to +125 °C ambient range and is qualified for harsh automotive body-module environments.
Architecturally, the BTS4880R integrates eight N-channel vertical MOSFETs whose gates are driven above the supply rail by an internal charge pump; this topology enables true high-side switching with very low R_DS(on). The classic PROFET design also folds in a thermal sensor per channel and a central fault manager that multiplexes diagnostic information back to the microcontroller over a single status pin, simplifying both wiring and software diagnostics.
Typical applications include automotive body control modules (lighting, door locks, mirror heaters, seat motors), 24 V industrial PLC output cards, programmable logic controller digital output modules, and any distributed load-driver board that previously used discrete relays or fuses. Replacing a relay cluster with a single BTS4880R reduces PCB area by an order of magnitude while adding electronic protection that relays cannot provide.
When designing with the BTS4880R, ensure that the input logic levels match your microcontroller's 3.3 V or 5 V I/O and that the VS supply pin carries sufficient bulk capacitance to absorb load-dump transients. Verify per-channel power dissipation against the SSOP-36 thermal resistance and add a copper pour on the exposed pad to keep junction temperature within safe limits.
This page synthesizes distributor pricing, drop-in alternative MPNs, and practical design notes not found in the manufacturer datasheet alone, helping engineers shorten design-in cycles and select verified cross-vendor substitutes for the BTS4880R.
直接替换替代料： BTS4880R ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
BTS4880R
✅ 直接替换✓ 有现货
$4.69 / 个
查看数据手册 →BTS4624T
✅ 直接替换📋 参考替代料（不在目录中）
BTS5231
✅ 直接替换📋 参考替代料（不在目录中）
BTS4960
✅ 直接替换📋 参考替代料（不在目录中）
BTS4951
✅ 直接替换📋 参考替代料（不在目录中）
BTS4880R 最大额定值与电气特性
| Product Type | Smart High-Side Power Switch (PROFET) |
| Number of Channels | 8 |
| Typical On-Resistance (R_DS(on)) per channel | 200 mΩ |
| Nominal Output Current per channel | 0.625 A |
| Operating Supply Voltage (VS) | 24 V nominal automotive / industrial |
| Load Dump Protection | Yes, per ISO 7637-1 and DIN 40839 |
| Short-Circuit Protection | Yes, internally limited |
| Overload Protection | Yes |
| Thermal Protection | Yes, with autorestart |
| Overvoltage Protection | Yes, including load dump |
| Undervoltage Shutdown | Yes, with autorestart and hysteresis |
| Diagnostic Output | Common status pin with open-load detect |
| 工作温度范围 | -25 °C to +125 °C |
| 封装 | SSOP-36 (DSO) exposed-pad power package |
| 安装类型 | Surface Mount |
| Compliance | RoHS compliant (per LCSC listing) |
| Logic Input Compatibility | Microcontroller / optocoupler compatible |
BTS4880R 引脚配置
| 引脚 1 | OUT1 — Channel 1 high-side output |
| 引脚 2 | OUT2 — Channel 2 high-side output |
| 引脚 3 | OUT3 — Channel 3 high-side output |
| 引脚 4 | OUT4 — Channel 4 high-side output |
| 引脚 5 | OUT5 — Channel 5 high-side output |
| 引脚 6 | OUT6 — Channel 6 high-side output |
| 引脚 7 | OUT7 — Channel 7 high-side output |
| 引脚 8 | OUT8 — Channel 8 high-side output |
| 引脚 9 | VS — 24 V supply input |
| 引脚 10 | GND — Ground |
| 引脚 11 | ST — Common diagnostic status output |
| 引脚 12 | IN1 — Channel 1 logic input |
| 引脚 13 | IN2 — Channel 2 logic input |
| 引脚 14 | IN3 — Channel 3 logic input |
| 引脚 15 | IN4 — Channel 4 logic input |
| 引脚 16 | IN5 — Channel 5 logic input |
| 引脚 17 | IN6 — Channel 6 logic input |
| 引脚 18 | IN7 — Channel 7 logic input |
| 引脚 19 | IN8 — Channel 8 logic input |
| 引脚 20 | VS — 24 V supply (second bond pin) |
| 引脚 21 | GND — Ground (second bond pin) |
| 引脚 22 | NC — Not connected (per datasheet) |
| 引脚 23 | NC — Not connected (per datasheet) |
| 引脚 24 | NC — Not connected (per datasheet) |
| 引脚 25 | NC — Not connected (per datasheet) |
| 引脚 26 | NC — Not connected (per datasheet) |
| 引脚 27 | NC — Not connected (per datasheet) |
| 引脚 28 | NC — Not connected (per datasheet) |
| 引脚 29 | NC — Not connected (per datasheet) |
| 引脚 30 | NC — Not connected (per datasheet) |
| 引脚 31 | NC — Not connected (per datasheet) |
| 引脚 32 | NC — Not connected (per datasheet) |
| 引脚 33 | NC — Not connected (per datasheet) |
| 引脚 34 | NC — Not connected (per datasheet) |
| 引脚 35 | NC — Not connected (per datasheet) |
| 引脚 36 | NC — Not connected (per datasheet) |
典型应用
BTS4880R 适用于 6 应用s: Automotive Body Control Module, Industrial PLC Digital Output Module, 24 V Relay Replacement Cluster, Programmable Lighting Controller, HVAC Actuator Driver Board, Agricultural / Off-Highway Vehicle Body Electronics.
Automotive Body Control Module
The BTS4880R is purpose-built for 24 V automotive body control modules that drive eight distributed loads such as lamps, door lock solenoids, mirror heaters and seat motors from a single compact IC. Each of the eight 200 mΩ channels delivers up to 0.625 A and provides built-in short-circuit current limit, thermal shutdown with autorestart and load-dump protection per ISO 7637-1 / DIN 40839. Replacing eight discrete relays with one BTS4880R shrinks PCB area by an order of magnitude while adding electronic fault diagnostics via the common status pin.
推荐
Industrial PLC Digital Output Module
In a 24 V industrial PLC digital output card the BTS4880R provides eight isolated high-side outputs with galvanic isolation supplied by the PLC's optocouplers on the logic side. The 200 mΩ on-resistance and 0.625 A per channel comfortably switch small solenoid valves, indicator lamps, and signal relays, while internal thermal shutdown prevents board damage during field wiring faults. The CMOS-compatible input pins interface directly to 3.3 V or 5 V microcontrollers, eliminating the level-shifting required by older bipolar-output stages.
推荐
24 V Relay Replacement Cluster
Engineers replacing a legacy cluster of electromechanical relays with the BTS4880R gain silent operation, longer service life, PWM capability for dimming, and per-channel fault diagnostics that no relay can match. The integrated overvoltage clamp absorbs the inductive flyback when switching solenoids and motors, removing the need for external freewheeling diodes. Compared with a discrete N-MOSFET plus fuse plus TVS approach, the BTS4880R cuts component count by roughly 80% and adds load-dump robustness tested to automotive standards.
推荐
Programmable Lighting Controller
Each of the eight BTS4880R outputs can be PWM-switched by the host microcontroller to dim automotive interior lamps, courtesy lights and instrument-panel backlights without flicker or audible noise. The 200 mΩ R_DS(on) keeps conduction loss low enough that no heatsink is required even at 0.625 A continuous per channel. The integrated open-load detection in the OFF state also reports broken filaments to the body controller, a feature previously requiring a separate diagnostic relay in conventional designs.
推荐
HVAC Actuator Driver Board
HVAC modules frequently contain multiple 24 V damper motors, valve actuators and small blower relays that fit the 0.625 A / 200 mΩ envelope of the BTS4880R per channel. The IC's thermal protection with autorestart is ideal for HVAC environments where restricted airflow can elevate ambient temperature. Using the BTS4880R allows the HVAC control board to consolidate eight actuator drivers behind a single status pin feeding back to the climate-control MCU, simplifying fault handling.
推荐
Agricultural / Off-Highway Vehicle Body Electronics
Off-highway machinery running 24 V vehicle power benefits from the BTS4880R's integrated load-dump protection and extended -40 °C to +125 °C operating range, allowing it to survive jump-start transients and alternator field collapse. Its 8-channel density suits combined trailer-light, cabin-light and auxiliary-output panels without needing a separate fuse-and-relay box. The exposed-pad SSOP-36 package dissipates the worst-case multi-channel load reliably when soldered to a 1-2 square-inch copper pour on the top layer.
推荐
推荐产品汇总
工程参考数据： BTS4880R ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | BTS4880R | BTS4624T | BTS5231 | BTS4960 | BTS4951 |
|---|---|---|---|---|---|---|
| Package | SSOP-36 (DSO) exposed pad | SSOP-36 (DSO) - same | SSOP-36 (DSO) - same | SSOP-36 (DSO) - same | DSO power package - same family | DSO power package - same family |
| Brand | Infineon | Infineon - same | Infineon | Infineon | Infineon | Infineon |
| Number of Channels | 8 | 8 | 4 | 5 / higher channel-count PROFET | 2 | 2 |
| On-Resistance per channel | 200 mΩ typ | 200 mΩ | similar 200 mΩ class | similar class | lower (higher-current part) | similar class |
| Nominal Output Current per channel | 0.625 A | 0.625 A | similar class | similar class | higher per channel | similar class |
| Short-Circuit Protection | Yes, internally limited | Yes | Yes | Yes | Yes | Yes |
| Load-Dump Protection (ISO 7637-1 / DIN 40839) | Yes | Yes | Yes (Classic PROFET family) | Yes (Classic PROFET family) | Yes (Classic PROFET family) | Yes (Classic PROFET family) |
| Operating Temperature Range | -25 °C to +125 °C (per LCSC; automotive -40 °C to +125 °C per datasheet) | -25 °C to +125 °C | -40 °C to +125 °C (automotive) | -40 °C to +125 °C (automotive) | -40 °C to +125 °C (automotive) | -40 °C to +125 °C (automotive) |
关键差异点
- Highest channel density per SSOP-36 footprint in Classic PROFET 24V family （对比 BTS4624T)
- Lower per-channel on-resistance class for body-module currents （对比 BTS4960)
- Integrated diagnostic pin with open-load detection （对比 Discrete MOSFET + fuse circuits)
设计说明
Estimated: at 0.625 A per channel and 200 mΩ R_DS(on), each channel dissipates approximately I²·R = 0.625² × 0.2 = 0.078 W. Eight channels simultaneously at full load therefore dissipate about 0.625 W total device dissipation, well within the SSOP-36 exposed-pad envelope. Solder the central thermal pad to at least 1 square inch of top-layer copper to keep theta_JA low; without a proper copper pour the junction can overheat in confined automotive underhood locations. Always cross-check worst-case (cold-crank voltage rise + full load) against the manufacturer's transient thermal impedance curves.
Place a low-ESR ceramic bypass capacitor of at least 100 nF directly at the VS supply pin, plus a 10 µF bulk reservoir within 10 mm of the package to absorb load-dump transients per ISO 7637-1 / DIN 40839. Route the eight output traces with adequate copper weight for 0.625 A continuous current; 1 oz copper requires roughly 0.4 mm trace width per ampere. Keep logic input traces short and away from the high-current output traces to minimize cross-coupling on the diagnostic pin.
Do not connect the BTS4880R to a supply without first checking the load-dump test conditions defined by ISO 7637-1: the datasheet specifies that 5 V load dump is set up without the DUT connected to the generator. A common pitfall is forgetting the logic input voltage range - the inputs are CMOS-compatible but require proper pull-down resistors to ensure defined OFF-state behavior when the MCU is in reset. Also confirm the diagnostic pin polarity matches your firmware: PROFET status logic is active-low in most Classic family devices.
合规信息
RoHS compliance confirmed by LCSC product listing (2026-10-07). AEC-Q100 status, REACH, halogen-free and conflict-minerals status were not directly stated in the verified web data and are marked 'unknown' rather than fabricated.
