ZHCSHF4J May 2004 – January 2018 TPS51116
PRODUCTION DATA.
請參考 PDF 數據表獲取器件具體的封裝圖。
The TPS51116 device discharges VDDQ, VTTREF and VTT outputs when S3 and S5 are both low. There are two different discharge modes. The discharge mode can be set by connecting MODE pin as shown in Table 3.
| MODE | DISCHARGE MODE |
|---|---|
| V5IN | No discharge |
| VDDQ | Tracking discharge |
| GND | Non-tracking discharge |
When in tracking-discharge mode, the device discharges outputs through the internal VTT regulator transistors and VTT output tracks half of VDDQ voltage during this discharge. Note that VDDQ discharge current flows via VLDOIN to LDOGND thus VLDOIN must be connected to VDDQ output in this mode. The internal LDO can handle up to 3 A and discharge quickly. After VDDQ is discharged down to 0.2 V, the internal LDO is turned off and the operation mode is changed to the non-tracking-discharge mode.
When in non-tracking-discharge mode, teh device discharges outputs using internal MOSFETs which are connected to VDDQSNS and VTT. The current capability of these MOSFETs are limited to discharge slowly. Note that VDDQ discharge current flows from VDDQSNS to PGND in this mode. In no discharge mode, the device does not discharge any output charge.