SLVSD05G March 2016 – August 2024 TPS56C215
PRODUCTION DATA
The EN pin controls the turn-on and turnoff of the device. When EN pin voltage is above the turn-on threshold which is around 1.2 V, the device starts switching and when the EN pin voltage falls below the turnoff threshold, which is around 1.1 V, it stops switching. If the user application requires a different turn-on (VSTART) and turnoff thresholds (VSTOP) respectively, the EN pin can be configured as shown in Figure 6-3 by connecting a resistor divider between VIN and EN. The EN pin has a pullup current Ip1 that sets the default state of the pin when it is floating. This current increases to Ip2 when the EN pin voltage crosses the turn-on threshold. The UVLO thresholds can be set by using Equation 4 and Equation 5.
where