封裝資訊
| 封裝 | 引腳 CFP (HKU) | 10 |
| 作業溫度範圍 (°C) 25 to 25 |
| 包裝數量 | 運送包裝 25 | TUBE |
UC1843B-SP 的特色
- QML class V (QMLV) qualified, SMD 5962-86704
- 5962R8670412VYC:
- Radiation hardness assurance (RHA) up to 100-krad(Si) total ionizing dose (TID)
- Optimized for offline and DC-to-DC converters
- Low start-up current (< 0.5 mA)
- Trimmed oscillator discharge current
- Automatic feed forward compensation
- Pulse-by-pulse current limiting
- Enhanced load response characteristics
- Undervoltage lockout (UVLO) with hysteresis
- Double-pulse suppression
- High-current totem-pole output
- Internally-trimmed bandgap reference
- 500-kHz operation
- Low RO error amplifier
UC1843B-SP 的說明
The UC1843B-SP control IC is a radiation hardened pin-for-pin compatible version of the UC1843A-SP. Providing the necessary characteristics to control current-mode switched-mode power supplies, this device has improved features. Start-up current is specified to be less than 0.5 mA and oscillator discharge is trimmed to 8.3 mA. During UVLO, the output stage can sink at least 10 mA at less than 1.2 V for VCC over 5 V.