ZHCS447C SEPTEMBER 2011 – April 2018 TPS84210
PRODUCTION DATA.
- 1 特性
- 2 應(yīng)用
- 3 說明
- 4 修訂歷史記錄
- 5 Pin Configuration and Functions
- 6 Specifications
- 7 Functional Block Diagram
- 8 Application and Implementation
- 9 Capacitor Recommendations For The TPS84210 Power Supply
- 10Transient Response
- 11Application Schematics
- 12Power Good (PWRGD)
- 13Power-Up Characteristics
- 14Remote Sense
- 15Output On/Off Inhibit (INH)
- 16Slow Start (SS/TR)
- 17Overcurrent Protection
- 18Synchronization (CLK)
- 19Sequencing (SS/TR)
- 20Programmable Undervoltage Lockout (UVLO)
- 21Thermal Shutdown
- 22Layout Guidelines
- 23Layout Example
- 24EMI
- 25器件和文檔支持
- 26機械、封裝和可訂購信息
封裝選項
機械數(shù)據(jù) (封裝 | 引腳)
- RKG|39
散熱焊盤機械數(shù)據(jù) (封裝 | 引腳)
- RKG|39
訂購信息
20 Programmable Undervoltage Lockout (UVLO)
The TPS84210 implements internal UVLO circuitry on the VIN pin. The device is disabled when the VIN pin voltage falls below the internal VIN UVLO threshold. The internal VIN UVLO rising threshold is 3.135 V (max) with a typical hysteresis of 300 mV.
If an application requires a higher UVLO threshold on the VIN pin, the UVLO pin can be configured as shown in Figure 33. Table 8 lists standard values for RUVLO to adjust the VIN UVLO voltage up.
Figure 33. Adjustable VIN UVLO
Table 8. Standard Resistor values for Adjusting VIN UVLO
| VIN UVLO (V) (typ) | 3.25 | 3.5 | 3.75 | 4.0 | 4.25 | 4.5 | 4.75 |
|---|---|---|---|---|---|---|---|
| RUVLO (kΩ) | 294 | 133 | 86.6 | 63.4 | 49.9 | 42.2 | 35.7 |
| Hysteresis (mV) | 325 | 335 | 345 | 355 | 365 | 375 | 385 |