SI3402-B-GM vs SI3402-A-GM 对比
详细并排对比 SI3402-B-GM 出自 Skyworks Solutions 和 SI3402-A-GM 出自 Skyworks Solutions。对比关键规格、电气参数、封装、生命周期状态、价格和供货情况，以确定最适合您设计需求的元器件。
规格对比
| 参数 | SI3402-B-GM | SI3402-A-GM |
|---|---|---|
| 品牌 | Skyworks Solutions | Skyworks Solutions |
| 分类 | Power MOSFET Drivers | Voltage Regulators |
| 生命周期状态 | 有效 | 最后采购期 |
| 库存状态 | 有库存 | 有库存 |
| 单价（USD） | $2.45 | $1.92 |
| 功能 | PoE PD Interface + Switching Regulator | — |
| Standard Compliance | IEEE 802.3af / 802.3at (Type 1) Class 0-3 | — |
| Maximum Output Power | 15 W (Class 3) / 13 W typical | 17 W |
| Input Voltage Range (PoE) | 37 V to 57 V | 37 V to 57 V DC |
| Number of Channels | 1 | 1 |
| Integrated Hotswap FET | Yes (dual current-limited) | — |
| Integrated Diode Bridges | Yes (both pairs) | Yes (on-chip) |
| Integrated Surge Suppressor | Yes (transient) | — |
| 开关稳压器 | PWM with integrated power FET | — |
| 输出电压范围 | [DATA_NEEDED: Vout min/max] | — |
| 封装 | 20-QFN (5x5 mm) | 20-QFN (5x5 mm) with exposed pad |
| 安装类型 | Surface Mount | Surface Mount |
| 工作温度 | -40C to +85C | -40 C to +85 C |
| RoHS 状态 | Compliant | Compliant |
| Pin-Compatible Replacement | Si3402-A (obsolete) | — |
| Product Type | — | PoE Powered Device (PD) Controller with integrated switching regulator |
| PoE Standard | — | IEEE 802.3af (Type 1, Class 3) |
| Input Voltage Transient Tolerance | — | 100 V absolute max |
| 输出电压 | — | Adjustable (typical 3.3 V, 5 V, 12 V via external components) |
| Switching Topology | — | Synchronous buck PWM with low-EMI frequency dithering |
| Integrated Hot-Swap FET | — | Yes (internal pass device) |
| MSL 等级 | — | 2 |