ZHCSIP1G April 1999 – July 2025 UCC2808A-1 , UCC2808A-2 , UCC3808A-1 , UCC3808A-2
PRODUCTION DATA
| 參數 | 測試條件 | 最小值 | 典型值 | 最大值 | 單位 | |
|---|---|---|---|---|---|---|
| 振蕩器 | ||||||
| 振蕩器頻率 | 175 | 194 | 213 | kHz | ||
| 振蕩器振幅/VDD(2) | 0.44 | 0.5 | 0.56 | V/V | ||
| 誤差放大器 | ||||||
| 輸入電壓 | COMP = 2V | 1.95 | 2 | 2.05 | V | |
| 輸入偏置電流 | -1 | 1 | μA | |||
| 開放式環路電壓增益 | 60 | 80 | dB | |||
| COMP 灌電流 | FB = 2.2 V，COMP = 1 V | 0.3 | 2.5 | mA | ||
| COMP 源電流 | FB = 1.3 V，COMP = 3.5 V | -0.2 | -0.5 | mA | ||
| PWM | ||||||
| 最大占空比 | 在 OUTA 或 OUTB 處測得 | 48% | 49% | 50% | ||
| 最小占空比 | COMP = 0V | 0% | ||||
| 電流檢測 | ||||||
| 增益(3) | 1.9 | 2.2 | 2.5 | V/V | ||
| 最大輸入信號 | COMP = 5V(4) | 0.45 | 0.5 | 0.55 | V | |
| CS 至輸出延遲 | COMP = 3.5V， CS 從 0mV 至 600mV |
100 | 200 | ns | ||
| CS 源電流 | -200 | nA | ||||
| CS 灌電流 | CS = 0.5V，RC = 5.5V(5) | 5 | 10 | mA | ||
| 過流閾值 | 0.7 | 0.75 | 0.8 | V | ||
| COMP 至 CS 失調電壓 | CS = 0V | 0.35 | 0.8 | 1.2 | V | |
| 輸出 | ||||||
| OUT 低電平 | I = 100mA | 0.5 | 1 | V | ||
| OUT 高電平 | I = -50mA，VDD - OUT | 0.5 | 1 | V | ||
| 上升時間 | CL = 1nF | 25 | 60 | ns | ||
| 下降時間 | CL = 1nF | 25 | 60 | ns | ||
| 欠壓鎖定 | ||||||
| 啟動閾值 | UCCx808A-1(1) | 11.5 | 12.5 | 13.5 | V | |
| UCCx808A-2 | 4.1 | 4.3 | 4.5 | |||
| 啟動后的最小工作電壓 | UCCx808A-1 | 7.6 | 8.3 | 9 | V | |
| UCCx808A-2 | 3.9 | 4.1 | 4.3 | |||
| 遲滯 | UCCx808A-1 | 3.5 | 4.2 | 5.1 | V | |
| UCCx808A-2 | 0.1 | 0.2 | 0.3 | |||
| 軟啟動 | ||||||
| COMP 上升時間 | FB = 1.8V，從 0.5V 上升至 4V | 3.5 | 20 | ms | ||
| 總計 | ||||||
| 啟動電流 | VDD < 啟動閾值 | 130 | 260 | μA | ||
| 工作電源電流 | FB = 0V，CS = 0V(1)(6) | 1 | 2 | mA | ||
| VDD 齊納分流電壓 | IDD = 10mA(7) | 13 | 14 | 15 | V | |