ZHCSNL0B April 2021 – January 2024 TPS3899-Q1
PRODUCTION DATA
Upon power up, RESET/RESET begins asserted and remains asserted until the SENSE pin voltage rises above the positive voltage threshold VIT- + VHYS for the duration of the reset delay set by CTR. After the SENSE pin voltage is above VIT- + VHYS for the reset delay, RESET/RESET deasserts. RESET/RESET remains deasserted long as the SENSE pin voltage is above the positive threshold. If the SENSE pin voltage falls below the negative threshold (VIT-) for the duration of the sense delay set by CTS, then RESET/RESET is asserted.
An external pull-up resistor is required for the open-drain variants. Connect the external pull-up resistor to the proper voltage rail to enable the outputs to be connected to other devices at the correct interface voltage level. RESET/RESET can be pulled up to any voltage up to 6.0V, independent of the device supply voltage.