TC1428COA Microchip

TC1426/TC1427/TC1428 1.2A Dual High-Speed MOSFET Drivers Features: Package Type 8-Pin PDIP/SOIC Low Cost NC 1 8 NC NC 1 8 NC NC 1 8 NC Latch-Up Protected: Will Withstand 500 mA IN A 2 7 OUT A IN A 2 7 OUT A IN A 2 7 OUT A Reverse Output Current TC1426CPA TC1427CPA TC1428CPA GND 3 6 V GND 3 6 V GND 3 6 V DD DD DD IN B 4 5 OUT B IN B 4 5 OUT B ESD Protected 2kV IN B 4 5 OUT B 2, 4 7, 5 2, 4 7, 5 High Peak Output Current: 1.2A 27 Inverting Noninverting Wide Operating Range: 45 - 4.5V to 16V NC 1 8 NC NC 1 8 NC NC 1 8 NC High Capacitive Load Drive Capability: 1000 pF in IN A 2 7 OUT A IN A 2 7 OUT A IN A 2 7 OUT A TC1426COA TC1427COA TC1428COA 38 nsec GND 3 6 V GND 3 6 V DD DD GND 3 6 V DD IN B 4 5 OUT B IN B 4 5 OUT B IN B 4 5 OUT B Low Delay Time: 75 nsec Max 2, 4 7, 5 Logic Input Threshold Independent of Supply 2, 4 7, 5 27 Noninverting Voltage Inverting 45 NC = No connection Output Voltage Swing to Within 25 mV of Ground or V DD Low Output Impedance: 8 General Description: The TC1426/TC1427/TC1428 are a family of 1.2A dual Applications: high-speed drivers. CMOS fabrication is used for low- Power MOSFET Drivers power consumption and high efficiency. Switched Mode Power Supplies These devices are fabricated using an epitaxial layer to Pulse Transformer Drive effectively short out the intrinsic parasitic transistor responsible for CMOS latch-up. They incorporate a Small Motor Controls number of other design and process refinements to Print Head Drive increase their long-term reliability. The TC1426 is compatible with the bipolar DS0026, but Device Selection Table only draws 1/5 of the quiescent current. The TC1426/ Part Number Package Temp. Range TC1427/TC1428 are also compatible with the TC426/ TC427/TC428, but with 1.2A peak output current rather TC1426COA 8-Pin SOIC 0C to +70C than the 1.5A of the TC426/TC427/TC428 devices. TC1426CPA 8-Pin PDIP 0C to +70C Other compatible drivers are the TC4426/TC4427/ TC1427COA 8-Pin SOIC 0C to +70C TC4428 and the TC4426A/TC4427A/TC4428A. The TC1427CPA 8-Pin PDIP 0C to +70C TC4426/TC4427/TC4428 have the added feature that TC1428COA 8-Pin SOIC 0C to +70C the inputs can withstand negative voltage up to 5V with diode protection circuits. The TC4426A/TC4427A/ TC1428CPA 8-Pin PDIP 0C to +70C TC4428A have matched input to output leading edge and falling edge delays, t and t , for processing D1 D2 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. 2001-2012 Microchip Technology Inc. DS21393D-page 1TC1426/TC1427/TC1428 Functional Block Diagram + V TC1426 Inverting 500 A TC1427 Noninverting 2.5 A TC1428 Inverting/Noninverting Noninverting Inverting Output Output (TC1427) (TC1426) Input GND NOTE: TC1428 has one inverting and one noninverting driver. Ground any unused driver input. DS21393D-page 2 2001-2012 Microchip Technology Inc.