Description

UCC384-X The series of negative linear series connectors is designed for low leakage applications. The low static power is very important. UCC384-X is manufactured by BCDMOS technology, which is very suitable for low input and output differences. Through 0.5 A, only 0.2 V input voltage is empty. The leakage voltage decreased linearly with the output current, and the leakage was less than 20mV at 50mA.

Static current consumption of the device under normal (missing) conditions is usually 200 micro -safety. Only when the device works nearby with a low vehicle identification number, the integrated charge pump is enabled internally. This ensures that even under the maximum load current and -3.2V vehicle recognition number (vehicle identification number), the static current can be moderately increased, and the device can meet the exit specifications. When the charging pump is enabled, the static current is always less than 350 Weire. The static current of UCC384 does not increase with increased load current.

Internal limited current. The device responded to the continuous over -current state and closed after a ton of delay. Then this device will be closed for a period of time, TOFF, which is 40 times that of tons delay. The device then starts to open and close the pulse at the 2.5%T/T dik dumbo ratio. This greatly reduces the power loss at short circuit. Therefore, if it is required, it must only adapt to normal work. The opening time of the external capacitor settings.

By pulling the positive voltage of the SD/CT pin to-0.7 V, the UCCX84-X can be closed to 45 Weian (maximum value). In order to simplify the interface, the SD/CT pin can be pulled to the position of 6 V higher than the ground pins without opening the clamping diode.

further control the internal power consumption through the heat overload protection circuit. If the knot temperature exceeds 140 ° C, heat shutdown will occur. The chip is closed until the temperature drops by 20 ° C (t 120 ° C).

Figure Figure

The absolute maximum rated value exceeding the free air temperature (unless otherwise explained) [123 ]