EL1056 データシートの表示（PDF） - Intersil

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EL1056

Monolithic High-Speed Pin Driver

Intersil 

EL1056A, EL1056

The transient currents that occur when driving capacitive or

back-matched loads can be very high, approaching 100mA.

The driver is capable of outputting a peak of 140mA, but

long-term load currents must be limited to 60mA. Short-

circuits can rapidly destroy the EL1056, although the part will

survive for 20ms periods. If there is the possibility of output

load fault the overcurrent sense circuitry should be used to

signal alarm to the controlling system, which should

ultimately activate the three-state mode to relieve the output

stage. Driving large static currents also raises internal

dissipation and should be part of the thermal budget.

The collectors of the output transistors are connected to the

Shunt terminals, and the output stage drivers' collectors are

connected to the B+ and B- terminals (see Figure 4). The

Shunt lines can have transient currents as high as 120mA

and are separated from the V+ and V- terminals to keep

switching noise out of the control and logic circuitry. A

bypass capacitor should be connected to the B+ and B-

terminals.

FIGURE 4. OUTPUT STAGE IN NORMAL MODE

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