SLVSGJ7 April 2022 TLVM13640
PRODUCTION DATA
The EN pin provides precision ON and OFF control for the TLVM13640. Once the EN pin voltage exceeds the rising threshold and VIN is above its minimum turn-on threshold, the device starts operation. The simplest way to enable the TLVM13640 is to connect EN directly to VIN. This allows the TLVM13640 to start up when VIN is within its valid operating range. However, many applications benefit from the use of an enable divider network as shown in Figure 8-1, which establishes a precision input undervoltage lockout (UVLO). This can be used for sequencing, to prevent re-triggering the device when used with long input cables, or to reduce the occurrence of deep discharge of a battery power source. An external logic signal can also be used to drive the enable input to toggle the output on and off and for system sequencing or protection.
Calculate RENB using Equation 7:
where