NCP1294 vs NCP1294DB مقارنة
مقارنة تفصيلية جنبًا إلى جنب لـ NCP1294 بواسطة onsemi و NCP1294DB بواسطة onsemi. قارن المواصفات الرئيسية والمعلمات الكهربائية والتغليف وحالة دورة الحياة والأسعار والتوافر لتحديد أفضل مكوّن لمتطلبات تصميمك.
مقارنة المواصفات
| المعامل | NCP1294 | NCP1294DB |
|---|---|---|
| العلامة التجارية | onsemi | onsemi |
| الفئة | DC-DC Converters | DC-DC Converters |
| حالة دورة الحياة | نشط | Unknown |
| Topology Supported | Flyback, Boost, Forward | — |
| Control Method | Fixed Frequency Feed Forward Voltage Mode PWM | — |
| تردد التبديل | 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] |
| بدء التشغيل الناعم | Internal, programmable | Yes |
| حد التيار | Cycle-by-cycle | — |
| Leading Edge Blanking | Yes (internal) | — |
| Undervoltage Protection (UVP) | Yes | — |
| Overvoltage Protection (OVP) | Yes | — |
| Output Driver | Totem pole (MOSFET gate drive) | — |
| درجة حرارة التشغيل | -40C to +125C [DATA_NEEDED: verified from datasheet] | — |
| العلبة | TSSOP-14 [DATA_NEEDED: verify pin count] | [DATA_NEEDED: package designation and pin count] |
| نوع التركيب | Surface Mount | [DATA_NEEDED: mounting type] |
| حالة RoHS | 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] |
| نطاق درجة حرارة التشغيل | — | [DATA_NEEDED: operating temperature range] |