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TS4268 Arkusz danych(PDF) 1 Page - Taiwan Semiconductor Company, Ltd |
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TS4268 Arkusz danych(HTML) 1 Page - Taiwan Semiconductor Company, Ltd |
1 / 7 page TS4268 180mA Fixed-Voltage Ultra Low LDO 1/7 Version: B07 SOP-8 General Description TS4268 is a 5V low-drop fixed-voltage regulator. The maximum input voltage is 45 V. It can deliver an output current of at least 180mA. TS4268 is short-circuit proof and features temperature protection that disables the circuit in the event of impermissibly high temperatures. The watchdog function is disabled as a function of the load, so that a controller is not interrupted during sleep mode by a watchdog reset. Application Description TS4268 regulates an input voltage in the range 5.5V ~ 45V. In the event of an output voltage Vout < VRT, a reset signal is generated. The wiring of the reset switching threshold input enables the value of VRT to be reduced. The reset delay time can be adjusted using an external capacitor. The integrated watchdog monitors the connected active controller. If there is no positive-going edge at the watchdog input, the reset output is set to low. The reset delay capacitor provides a wide adjustment range for the pulse repetition time. The watchdog function is only activated if the load exceeds 8mA. This ensures that a microcontroller is not activated during power-down and the current drain is not increased. The IC is protected against overload and over temperature. Features ● Output voltage tolerance <±2% ● Very low current consumption ● Low-drop voltage ● Watchdog ● Settable reset threshold ● Over temperature protection ● Reverse polarity protection ● Short-circuit proof ● Suitable for use in automotive electronics ● Wide temperature range Ordering Information Part No. Package Packing TS4268CS50 RL SOP-8 2.5Kpcs / 13” Reel Pin Description Pin No. Symbol Pin Description 1 IN Input Voltage. block to ground directly with ceramic capacitor 2 N/C Not Connected 3 RO Reset Output. the open collector output is connected to the 5V output via an integrated resistor of 30kΩ 4 GND Ground 5 RD Reset Delay. connect a capacitor to ground for delay time adjustment. 6 RADJ Reset Switching Threshold. for setting the switching threshold, output to ground with voltage divider. If this input is connected to ground, the reset is triggered at an output voltage of 4.5V. 7 WI Watchdog Input. positive-edge-triggered input for monitoring a microcontroller. 8 OUT Output Voltage. block to ground with 22uF capacitor, ESR <3Ω Pin Definition: 1. IN 8. OUT 2. N/C 7. WI 3. RO 6. RADJ 4. GND 5. RD |
Podobny numer części - TS4268_08 |
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Podobny opis - TS4268_08 |
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