NCP1294 vs NCP1294DB 对比
详细并排对比 NCP1294 出自 onsemi 和 NCP1294DB 出自 onsemi。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 | NCP1294 | NCP1294DB |
|---|---|---|
| 品牌 | onsemi | onsemi |
| 分类 | DC-DC Converters | DC-DC Converters |
| 生命周期状态 | 有效 | Unknown |
| Topology Supported | Flyback, Boost, Forward | — |
| Control Method | Fixed Frequency Feed Forward Voltage Mode PWM | — |
| 开关频率 | Programmable (up to 1 MHz typical) [DATA_NEEDED: exact max] | [DATA_NEEDED: switching frequency] |
| Startup Current | < 50 uA | Less than 50 uA |
| VCC Supply Voltage | [DATA_NEEDED: VCC range] | — |
| Maximum Duty Cycle | Programmable / Accurate Clamp [DATA_NEEDED: nominal %] | [DATA_NEEDED: maximum duty cycle] |
| 软启动 | Internal, programmable | Yes |
| 限流 | Cycle-by-cycle | — |
| Leading Edge Blanking | Yes (internal) | — |
| Undervoltage Protection (UVP) | Yes | — |
| Overvoltage Protection (OVP) | Yes | — |
| Output Driver | Totem pole (MOSFET gate drive) | — |
| 工作温度 | -40C to +125C [DATA_NEEDED: verified from datasheet] | — |
| 封装 | TSSOP-14 [DATA_NEEDED: verify pin count] | [DATA_NEEDED: package designation and pin count] |
| 安装类型 | Surface Mount | [DATA_NEEDED: mounting type] |
| RoHS 状态 | Compliant | [DATA_NEEDED: RoHS status] |
| Controller Type | — | Fixed-frequency feed-forward voltage-mode PWM controller |
| Supported Topologies | — | Flyback, boost, and forward converters |
| Optimization | — | High-frequency primary-side control |
| Duty-Cycle Limit | — | Accurate duty-cycle limit control |
| Overvoltage Protection | — | Yes |
| Undervoltage Protection | — | Yes |
| Control Mode | — | Voltage-mode |
| Feedback | — | Primary-side feedback control |
| Operating Voltage Range | — | [DATA_NEEDED: operating voltage range] |
| Output Drive Capability | — | [DATA_NEEDED: gate-drive current and sink current] |
| Protection Threshold | — | [DATA_NEEDED: overvoltage and undervoltage thresholds] |
| 工作温度范围 | — | [DATA_NEEDED: operating temperature range] |