Want to post a buying lead? If you are not a member yet, please select the specific/related part number first and then fill the quantity and your contact details in the "Request for Quotation Form" on the left, and then click "Send RFQ".Your buying lead can then be posted, and the reliable suppliers will quote via our online message system or other channels soon.
The TDE1708DFT is an Integrated Power Switch with up to 48V Power supply capability. Two output configurations are possible: Load to Gnd. (High Side Mode) Load to VS (Low side Mode)
Especially dedicated to proximity detectors, its internal +5V supply can be used to supply external circuits (See also AN495).
A signal is internally generated to block the In signal, and prevent activation of the output switch, as long as an abnormal condition is detected. The power-on transition, as well as the chip over temperature and the output overcurrent, concur to the generation of such signal. A minimum delay of 25ms (Typ.value) is added to the trailing edge of such signal to ensure that a stable normal situation is present when the signal disappears. The delay (of the disappearance of the block signal; no delay at its on set) can be further increased connecting a capacitor between pin3 and ground. It can drive resistive or inductive loads.
TDE1708DFT Maximum Ratings
VS Supply voltage........................................................ 50 V VS Supply reverse voltage ...........................................50 V Io Output current................................... internally limited A Vreg Regulated voltage pin ....................................0 to 7 V Vdelay Delay cap. source pin.................................. 0 to 5 V Vo Output diff. voltage .................................................55 V Vi Input voltage................................................. -10 to 50 V TJ Junction operating temperature ........Internally limited Tstg Storage temperature range..................... -55 to 150 Ptot Power dissipation....................... internally limited mW Ei Energy inductive load ...........................................100 mJ
TDE1708DFT Features
Low side or high side switch configuration 6V to 48V supply voltage range Overload and short circuit protections Internal voltage clamping Supply and output reversal protection Thermal shutdown GND and vs open wire protection Adjustable delay at switch on Indicator status led driver +5V regulated aux. voltage High burst immunity