TPS3514
- Over-Voltage Protection and
Lockout: 12V, 5V, and 3.3V Supplies - Over-Current Protection and Lockout: 12V, 5V, and 3.3V Supplies
- Under-Voltage Protection and Lockout: 12V Supplies
- Under-Voltage Detect: 5V and 3.3V Supplies
- Fault-Protection Output with Open-Drain Output Stage
- Open-Drain, Power-Good Output Signal: Monitors Power-Good Signal Input 3.3V and 5V Supplies
- 300ms Power-Good Delay
- 75ms Delay: 5V, 3.3V Power-Supply Short-Circuit Turn-On Protection
- 2.3ms PSON Control To FPO Turn-Off Delay
- 38ms PSON Control Debounce
- Wide Supply Voltage Range: 4.5V to 15V
All trademarks are the property of their respective owners.
The TPS3514 is a PC switching power-supply system monitor with minimum external components. It provides under-voltage lockout (UVLO), over-voltage (OV), under-voltage (UV), over-current (OC) protection circuits, power-good indicator, and on/off control.
UVLO thresholds are 4.45V (on) and 3.65V (off). Over-current protection (OCP) and over-voltage protection (OVP) monitor 3.3V, 5V, and 12V supplies. When an OC or OV condition is detected, the power-good output (PGO) is asserted low and the fault protection output (FPO) is latched high. PSON from low-to-high resets the latch. The OCP function will be enabled 75ms after PSON goes LOW with PGI HIGH and a debounce of typically 38ms. A built-in 2.3ms delay with 38ms debounce from PSON to FPO output is enabled at turn-off.
An external resistor is connected between the RI pin and the GND pin. This will program a precise I(REF) for OCP function. The programmable I(REF) range is from 12.5µA to 62.5µA. Three OCP comparators and the I(REF) section are supplied by VS12. The current draw from the VS12 pin is less than 1mA.
The power-good feature monitors PGI, the 3.3V and 5V supplies, and issues a power-good signal when the output is ready.
The TPS3514 is characterized for operation from -40°C to +85°C. The TPS3514 is available in DIP-14 and SO-14 packages.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | PC Power-Supply Supervisors datasheet (Rev. C) | 2006年 12月 1日 | |
| Application note | Optimizing Resistor Dividers at a Comparator (Rev. B) | PDF | HTML | 2021年 4月 30日 | |
| Selection guide | Voltage Supervisors (Reset ICs) Quick Reference Guide (Rev. H) | 2020年 2月 28日 | ||
| E-book | Voltage Supervisor and Reset ICs: Tips, Tricks and Basics | 2019年 6月 28日 | ||
| Selection guide | Power Management Guide 2018 (Rev. R) | 2018年 6月 25日 | ||
| Application note | Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs | 2011年 9月 19日 |
設計與開發
如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
| 封裝 | 引腳 | 下載 |
|---|---|---|
| PDIP (N) | 14 | 檢視選項 |
| SOIC (D) | 14 | 檢視選項 |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 資格摘要
- 進行中可靠性監測
- 晶圓廠位置
- 組裝地點