TL594
- Complete PWM power-control circuitry
- Uncommitted outputs for 200mA sink or source current
- Output control selects single-ended or push-pull operation
- Internal circuitry prohibits double pulse at either output
- Variable dead time provides control over total range
- Internal regulator provides a stable 5V reference supply trimmed to 1%
- Circuit architecture allows easy synchronization
- Undervoltage lockout (UVLO) for low-VCC conditions
The TL594 device incorporates all the functions required in the construction of a pulse width modulation (PWM) control circuit on a chip. Designed primarily for power-supply control, this device offers the systems engineer the flexibility to tailor the power-supply control circuitry to a specific application.
The TL594 device contains two error amplifiers, an on-chip adjustable oscillator, a dead-time control (DTC) comparator, a pulse-steering control flip-flop, a 5V regulator with a precision of 1%, an undervoltage lockout control circuit, and output control circuitry.
The uncommitted output transistors provide either common-source or source-follower output capability. Each device provides for push-pull or single-ended output operation, with selection by means of the output-control function. The architecture of these devices prohibits the possibility of either output pulsing twice during push-pull operation. The undervoltage lockout control circuit locks the outputs off until the internal circuitry is operational.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | TL594 Pulse-Width-Modulation Control Circuit datasheet (Rev. J) | PDF | HTML | 2026/9/4 | ||
| 應用說明 | Understanding Inverting Buck-Boost Power Stages in Switch Mode Power Supplies (Rev. B) | 2019/3/12 | ||||
| 選擇指南 | Power Management Guide 2018 (Rev. R) | 2018/6/25 | ||||
| 應用說明 | Understanding Buck Power Stages In Switchmode Power Supplies | 1999/3/4 | ||||
| 應用說明 | Understanding Boost Power Stages In Switchmode Power Supplies | 1999/3/4 |
設計與開發
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PMP40182 — 雙向電池初始化系統電源板參考設計
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| PDIP (N) | 16 | Ultra Librarian |
| SOIC (D) | 16 | Ultra Librarian |
| TSSOP (PW) | 16 | Ultra Librarian |
| SOP (NS) | 16 | Ultra Librarian |
訂購與品質
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。