MIC4451 Micrel Semiconductor, MIC4451 Datasheet
MIC4451
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MIC4451 Summary of contents
Page 1
... MIC4451/4452 General Description MIC4451 and MIC4452 CMOS MOSFET drivers are tough, efficient, and easy to use. The MIC4451 is an inverting driver, while the MIC4452 is a non-inverting driver. Both versions are capable of 12A (peak) output and can drive the largest MOSFETs with an improved safe operating margin ...
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... MIC4451/4452 Ordering Information Part No. MIC4451BN MIC4451BM MIC4451CT MIC4452BN MIC4452BM MIC4452CT Pin Configurations Pin Description Pin Number Pin Number Pin Name TO-220-5 DIP, SOIC TAB April 1998 Temperature Range Package – +85 C 8-Pin PDIP – +85 C ...
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... MIC4451/4452 Absolute Maximum Ratings Supply Voltage .............................................................. 20V Input Voltage .................................. V Input Current (V > ............................................ Power Dissipation AMBIENT PDIP .................................................................... 960mW SOIC ................................................................. 1040mW 5-Pin TO-220 .............................................................. 2W Power Dissipation CASE 5-Pin TO-220 ......................................................... 12.5W Derating Factors (to Ambient) PDIP ................................................................ 7.7mW/ C SOIC .............................................................. 8.3 mW/ C 5-Pin TO-220 .................................................... 17mW/ C Storage Temperature ............................... – +150 C Lead Temperature (10 sec) ...
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... Functional operation above the absolute maximum stress ratings is not implied. NOTE 2: Static-sensitive device. Store only in conductive containers. Handling personnel and equipment should be grounded to prevent damage from static discharge. NOTE 3: Switching times guaranteed by design. Test Circuits V = 18V S 0.1µF 0.1µF IN 15000pF MIC4451 5V 90% INPUT 10 ...
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... MIC4451/4452 Typical Characteristic Curves Rise Time vs. Supply Voltage 220 200 180 160 140 47,000pF 120 100 80 22,000pF 60 40 10,000pF SUPPLY VOLTAGE (V) Rise Time vs. Capacitive Load 300 250 5V 200 150 10V 100 18V 50 0 100 1000 10k ...
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... MIC4451/4452 Typical Characteristic Curves (Cont.) Propagation Delay vs. Supply Voltage SUPPLY VOLTAGE (V) Quiescent Supply Current vs. Temperature 1000 V = 18V S INPUT = 1 100 INPUT = 120 TEMPERATURE ( C) April 1998 Propagation Delay vs. Input Amplitude 120 ...
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... The MIC4451 input structure includes 200mV of hysteresis to ensure clean transitions and freedom from oscillation, but attention to layout is still recommended. Figure 5 shows the feedback effect in detail. As the MIC4451 1µF input begins to go positive, the output goes negative and several amperes of current flow in the ground lead. As little ...
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... The MIC4451/4452 on the other hand, can source or sink several amperes and drive large capacitive loads at high frequency. The package power ...
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... MIC4451/4452 driver. The energy stored in a capacitor is described by the equation 1 this energy is lost in the driver each time the load is charged or discharged, for power dissipation calculations the 1/2 is removed. This equation also shows that it is good practice not to place more voltage on the capacitor than is necessary, as dissipation increases as the square of the voltage applied to the capacitor ...
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... MIC4451/4452 0 V April 1998 +18 V WIMA MK22 1 F 5.0V 1 TEK CURRENT PROBE 6302 MIC4452 5 0 Figure 6. Peak Output Current Test Circuit 5- 15,000 pF POLYCARBONATE Micrel 5 ...