mic44f18 Micrel Semiconductor, mic44f18 Datasheet
mic44f18
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mic44f18 Summary of contents
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... Comparable bipolar devices are capable of swinging only to within 1V of the supply. The input supply voltage range of the MIC44F18/19/20 is 4.5V to 13.2V, making the devices suitable for driving MOSFETs in a wide range of power applications. Other features include an enable function, latch-up protection, and a programmable UVLO function ...
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... MIC44F18 and a high output voltage for the MIC44F19/20 Under-Voltage Lockout (Input): Pulling this pin below low disables the driver. When disabled, the output is in the off state (low for the MIC44F18/20 and high for the MIC44F19). Floating this pin enables the driver and the UVLO circuitry when V reaches the UVLO threshold. A resistor divider can set a different UVLO threshold voltage as shown on page 1 (See “ ...
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... January 2007 (1) Operating Ratings Supply Voltage (V Package Thermal Impedance + 0.1V) to (GND-5V) S Operating Junction Temperature (T ) …. . -65°C to +150°C dd (4) Condition (MIC44F18 (MIC44F19/20 (MIC44F18 (MIC44F19/20 open EN V rising DD V rising DD Steady State Voltage (note 5) Ta=25C (+/-5%) Over temperature range (+/-10%) ...
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Electrical Characteristics (cont.) Symbol Parameter Output V High Output Voltage OH V Low Output Voltage OL Output Resistance, Output High R O Output Resistance, Output Low Peak Output Sink Current I PEAK Peak Output Source Current I Latch-Up Protection Withstand ...
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Typical Characteristics January 2007 5 M9999-011207 ...
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Typical Characteristics cont. January 2007 6 M9999-011207 ...
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... Timing Diagram Functional Diagram January 2007 Figure 1. MIC44F18/19/20 Functional Block Diagram 7 M9999-011207 ...
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... Functional Description The MIC44F18/19/20 family of drivers are high speed, high current drivers that are designed to drive P-channel and N-channel MOSFETs. The drivers come in both inverting and non-inverting versions. The block diagram of the MIC44Fxx driver is shown in Figure 1. The MIC44F18 is a non-inverting driver. ...
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Output Driver Section A block diagram of the low-side driver is shown in Figure 3. Low driver impedances allow the external MOSFET to be turned on and off quickly. The rail-to-rail drive capability of the output ensures a low R ...
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... B and C is difficult and Figure 5 shows GS The power dissipated inside the MIC4100/4101 is equal to the ratio the MIC44F18 due to driving the external MOSFET is × × E Ciss but = × × ...
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... R ON Supply Current Power Dissipation Power is dissipated in the MIC44F18 even if is there is nothing being driven. The supply current is drawn by the bias for the internal circuitry, the level shifting circuitry and shoot-through current in the output drivers. The supply current is proportional to operating frequency and the V voltage ...
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... VDD & GND pins be minimized to reduce pin inductance ground plane is recommended to minimize parasitic inductance and impedance of the return paths. The MIC44F18 family of drivers is capable of high peak currents and very fast transition times. Any impedance between the driver, the decoupling capacitors and the external MOSFET will degrade the performance of the circuit ...
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Package Information MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA TEL +1 (408) 944-0800 FAX +1 (408) 474-1000 WEB http:/www.micrel.com The information furnished by Micrel in this data sheet is believed to be accurate and reliable. However, no ...