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TC1426 Datasheet(PDF) 1 Page - Microchip Technology |
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TC1426 Datasheet(HTML) 1 Page - Microchip Technology |
1 / 14 page 2002 Microchip Technology Inc. DS21393B-page 1 M TC1426/TC1427/TC1428 Features •Low Cost • Latch-Up Protected: Will Withstand 500mA Reverse Output Current • ESD Protected ±2kV • High Peak Output Current: 1.2A • Wide Operating Range - 4.5V to 16V • High Capacitive Load Drive Capability: 1000pF in 38nsec • Low Delay Time: 75nsec Max • Logic Input Threshold Independent of Supply Voltage • Output Voltage Swing to Within 25mV of Ground or VDD • Low Output Impedance: 8 Ω Applications • Power MOSFET Drivers • Switched Mode Power Supplies • Pulse Transformer Drive • Small Motor Controls • Print Head Drive Device Selection Table Package Type General Description The TC1426/TC1427/TC1428 are a family of 1.2A dual high-speed drivers. CMOS fabrication is used for low power consumption and high efficiency. These devices are fabricated using an epitaxial layer to effectively short out the intrinsic parasitic transistor responsible for CMOS latch-up. They incorporate a number of other design and process refinements to increase their long-term reliability. The TC1426 is compatible with the bipolar DS0026, but only draws 1/5 of the quiescent current. The TC1426/ TC1427/TC1428 are also compatible with the TC426/ TC427/TC428, but with 1.2A peak output current rather than the 1.5A of the TC426/TC427/TC428 devices. Other compatible drivers are the TC4426/TC4427/ TC4428 and the TC4426A/TC4427A/TC4428A. The TC4426/TC4427/TC4428 have the added feature that the inputs can withstand negative voltage up to 5V with diode protection circuits. The TC4426A/TC4427A/ TC4428A have matched input to output leading edge and falling edge delays, tD1 and tD2, for processing short duration pulses in the 25 nanoseconds range. All of the above drivers are pin compatible. The high-input impedance TC1426/TC1427/TC1428 drivers are CMOS/TTL input-compatible, do not require the speed-up needed by the bipolar devices, and can be directly driven by most PWM ICs. This family of devices is available in inverting and non- inverting versions. Specifications have been optimized to achieve low-cost and high-performance devices, well-suited for the high-volume manufacturer. Part Number Package Temp. Range TC1426COA 8-Pin SOIC 0°C to +70°C TC1426CPA 8-Pin PDIP 0°C to +70°C TC1427COA 8-Pin SOIC 0°C to +70°C TC1427CPA 8-Pin PDIP 0°C to +70°C TC1428COA 8-Pin SOIC 0°C to +70°C TC1428CPA 8-Pin PDIP 0°C to +70°C TC1426CPA 1 2 3 4 NC 5 6 7 8 OUT A OUT B NC IN A GND IN B VDD 2, 4 7, 5 Inverting TC1427CPA 1 2 3 4 NC 5 6 7 8 OUT A OUT B NC IN A GND IN B 2, 4 7, 5 Noninverting TC1428CPA 1 2 3 4 NC 5 6 7 8 OUT A OUT B NC IN A GND IN B 27 45 VDD VDD TC1426COA 1 2 3 4 NC 5 6 7 8 OUT A OUT B NC IN A GND IN B VDD NC = No connection 2, 4 7, 5 Inverting TC1427COA 1 2 3 4 NC 5 6 7 8 OUT A OUT B NC IN A GND IN B 2, 4 7, 5 Noninverting TC1428COA 1 4 NC 5 6 7 8 OUT A OUT B NC IN B 2 7 45 VDD VDD 8-Pin PDIP/SOIC 1.2A Dual High-Speed MOSFET Drivers |
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