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LINEAR IC UC3845G-S08-R SOP-8
| 附件下載 | |
| 商品名稱 | LINEAR INTEGRATED CIRCUIT |
| 訂購數量 | |
| 依數量訂價 | NTD |
| FLYiNG 零件編號 | ICUC3845GS08RUTC |
| FLYiNG 庫存現貨 | 5 |
| 製造商 | UTC |
| 製造商零件編號 | UC3845G-S08-R |
| 說明 | LINEAR IC UC3845G-S08-R SOP-8 |
| 無鉛狀態 / RoHS 指令狀態 | RoHS / Halogen Free |
| DC-DC開關穩壓器 DC-DC Switching Regulator | LINEAR INTEGRATED CIRCUIT |
| 製造商 | UTC |
| 系列 | UC3844/45 |
| 原廠料號 | UC3845G-S08-R |
| 輸入電壓 | 30V |
| 輸出電壓 | 5V |
| 輸出電流 | 1A |
| 交換頻率 | 52KHz |
| 功耗 | 800mW |
| 工作溫度 | 0~70°C |
| 封裝／外殼 | SOP-8 |
| 安裝類型 | SMD 表面黏著式 |
| 無鉛狀態 RoHS | RoHS / Halogen Free |
| 標準包裝數量 | 2500/Reel |
UC3844/45 LINEAR INTEGRATED CIRCUIT
HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS
DESCRIPTION
The UTC UC3844/3845 are high performance fixed frequency current mode controllers that specifically designed for Off-Line and DC to DC converter applications with minimal external parts count.
The differences between UC3844 and UC3845 are the maximum duty cycle ranges and under-voltage lockout thresholds.
The UC3844 ideally suited to off-line applications with UVLOthresholds of 16V(ON) and 10V(OFF), and UC3845 has UVLO thresholds of 8.5V(ON) and 7.6V(OFF) for lower voltage applications.
FEATURES
UC3844/45 線性集成電路
高性能電流模式 PWM 控制器
描述
UTC UC3844/3845 是高性能固定頻率電流模式控制器，專為離線和直流到直流轉換器應用而設計，外部部件數量最少。
UC3844 和 UC3845 之間的區別在於最大佔空比範圍和欠壓鎖定閾值。
UC3844 非常適合具有 16V(ON) 和 10V(OFF) 的 UVLO 閾值的離線應用，而 UC3845 具有 8.5V(ON) 和 7.6V(OFF) 的 UVLO 閾值，適用於較低電壓的應用。
特徵
HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS
DESCRIPTION
The UTC UC3844/3845 are high performance fixed frequency current mode controllers that specifically designed for Off-Line and DC to DC converter applications with minimal external parts count.
The differences between UC3844 and UC3845 are the maximum duty cycle ranges and under-voltage lockout thresholds.
The UC3844 ideally suited to off-line applications with UVLOthresholds of 16V(ON) and 10V(OFF), and UC3845 has UVLO thresholds of 8.5V(ON) and 7.6V(OFF) for lower voltage applications.
- Operation output switching frequency up to 500 kHz
- Automatic feed forward compensation
- Latching PWM for cycle-by-cycle current limiting
- High current totem pole output
- Internally trimmed reference with under voltage lockout
- UVLO with hysteresis
- Low startup and operating current
UC3844/45 線性集成電路
高性能電流模式 PWM 控制器
描述
UTC UC3844/3845 是高性能固定頻率電流模式控制器，專為離線和直流到直流轉換器應用而設計，外部部件數量最少。
UC3844 和 UC3845 之間的區別在於最大佔空比範圍和欠壓鎖定閾值。
UC3844 非常適合具有 16V(ON) 和 10V(OFF) 的 UVLO 閾值的離線應用，而 UC3845 具有 8.5V(ON) 和 7.6V(OFF) 的 UVLO 閾值，適用於較低電壓的應用。
特徵
- 操作輸出開關頻率高達 500 kHz
- 自動前饋補償
- 鎖存 PWM 用於逐週期限流
- 大電流圖騰柱輸出
- 帶欠壓鎖定的內部微調基準
- 具有遲滯的 UVLO
- 低啟動和工作電流
