UC3842BD1 vs NCP1294 对比
详细并排对比 UC3842BD1 出自 STMicroelectronics 和 NCP1294 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。
STMicroelectronics
UC3842BD1 - Current Mode PWM Controller | STMicroelectronics | SMPS
UC3842BD1 ✓ 量产中
规格对比
| 参数 | UC3842BD1 | NCP1294 |
|---|---|---|
| 品牌 | STMicroelectronics | onsemi |
| 分类 | DC-DC Converters | DC-DC Converters |
| 生命周期状态 | 有效 | 有效 |
| 库存状态 | 有库存 | 有库存 |
| 单价（USD） | $0.15 | $0.81 |
| 输入电压范围 | 7.5 V to 30 V | — |
| Output Current (Peak) | 1 A | — |
| Oscillator Frequency (Max) | 500 kHz | — |
| Maximum Duty Cycle | 96% | Programmable / Accurate Clamp [DATA_NEEDED: nominal %] |
| Reference Output Voltage | 5 V | — |
| Reference Tolerance | ±2% | — |
| Error Amplifier Bandwidth | 1 MHz | — |
| Current Sense Threshold | 1 V | — |
| Startup Current | 0.5 mA | < 50 uA |
| Operating Supply Current | 11 mA | — |
| Under-Voltage Lockout (UVLO) On | 16 V | — |
| Under-Voltage Lockout (UVLO) Off | 10 V | — |
| 工作温度范围 | -40°C to +150°C | — |
| 封装 | SOIC-8 | TSSOP-14 [DATA_NEEDED: verify pin count] |
| 安装类型 | Surface Mount | Surface Mount |
| RoHS 状态 | Compliant | Compliant |
| 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] |
| VCC Supply Voltage | — | [DATA_NEEDED: VCC range] |
| 软启动 | — | Internal, programmable |
| 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] |