ca3274 Intersil Corporation, ca3274 Datasheet
ca3274
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ca3274 Summary of contents
Page 1
... Current sensing in the emitter circuit of a power-darlington output stage is fed back from a sampling resistor to the sense input of the CA3274 which has a 335mV typical offset. For the example shown in Figure 1, a sampling resistor of 0.056 permits 6.0A (0.335/0.056) of current in the emitter of the output driver. When the current limiter is activated, the fl ...
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... Block Diagram 7 CONTROL IN 1 FLAG OUT Q1 4 SIGNAL GROUND 7 CONTROL IN 1 FLAG OUT Q1 LATCH 4 SIGNAL GROUND FIGURE 1. TYPICAL APPLICATION AS A POWER SWITCH PRE-DRIVER SWITCH CA3274 CONTROL LOGIC AND Q2 CURRENT LIMITER - SENSE LATCH IN + 335mV 3 POWER GROUND CONTROL LOGIC & ...
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... Refer to Figure 2 Timing Diagram for logic switching and prop delay. 3. Unless otherwise specified CC1 V = “Low”; V SENSE Control in levels are defined as “Low” equals 0.0V and “High” equals 5.0V. Specifications CA3274 Thermal Information Thermal Resistance Plastic DIP Package 8 Lead . . . . . . . . . . . . . . . . . . . . . 130 + 0.5V Power Dissipation ...
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... FIGURE 2. CA3274 TIMING DIAGRAM POWER SUPPLY + CONTROL Q2 LOGIC - LATCH + 335mV 3 POWER GROUND FIGURE 3. CA3274 TEST CIRCUIT 10-43 CONTROL IN - PIN 7 t OFF DELAY DRIVE OUT- PIN 5 OUTPUT LOAD CURRENT SENSE IN - PIN 2 FLAG OUT- PIN 1 t FLAG DELAY OUTPUT LOAD POWER SUPPLY +V ...
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... For information regarding Intersil Corporation and its products, see web site http://www.intersil.com Sales Office Headquarters NORTH AMERICA Intersil Corporation P. O. Box 883, Mail Stop 53-204 Melbourne, FL 32902 TEL: (407) 724-7000 FAX: (407) 724-7240 CA3274 EUROPE Intersil SA Mercure Center 100, Rue de la Fusee 1130 Brussels, Belgium TEL: (32) 2.724.2111 FAX: (32) 2.724.22.05 ...