TC1428CPA

TC1426/TC1427/TC1428 1.2A Dual High-Speed MOSFET Drivers Features: Package Type • Low Cost • Latch-Up Protected: Will Withstand 500 mA Reverse Output Current • ESD Protected ±2kV • High Peak Output Current: 1.2A • Wide Operating Range: - 4.5V to 16V • High Capacitive Load Drive Capability: 1000 pF in 38 nsec • Low Delay Time: 75 nsec Max • Logic Input Threshold Independent of Supply Voltage • Output Voltage Swing to Within 25 mV of Ground or VDD • Low Output Impedance: 8 Power MOSFET Drivers Switched Mode Power Supplies Pulse Transformer Drive Small Motor Controls Print Head Drive Package Temp. Range 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 TC1426COA 8 NC GND 3 7 OUT A TC1426CPA 6 VDD IN B 4 NC 1 GND 3 7 OUT A TC1427CPA 5 OUT B IN B 4 2, 4 7, 5 NC 1 7 OUT A TC1426COA IN B 4 7, 5 Inverting GND 3 7, 5 6 VDD NC 1 8 NC IN A 2 TC1427COA GND 3 7 OUT A 6 VDD 5 OUT B IN B 4 2, 4 8 NC 7 OUT A TC1428CPA 6 VDD 5 OUT B 2 7 4 5 Noninverting 8 NC IN A 2 6 VDD NC 1 IN A 2 5 OUT B IN B 4 2, 4 Inverting GND 3 8 NC IN A 2 NC 1 IN A 2 8 NC TC1428COA GND 3 5 OUT B IN B 4 2, 4 7, 5 7 OUT A 6 VDD 5 OUT B 2 7 4 5 Noninverting NC = No connection General Description: 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. Device Selection Table Part Number NC 1 IN A 2 The TC1426/TC1427/TC1428 are a family of 1.2A dual high-speed drivers. CMOS fabrication is used for lowpower consumption and high efficiency. Applications: • • • • • 8-Pin PDIP/SOIC 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 noninverting 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 1 TC1426/TC1427/TC1428 Functional Block Diagram V+ ≈500 μA ≈2.5 μA TC1426 Inverting TC1427 Noninverting TC1428 Inverting/Noninverting Noninverting Output Inverting 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. TC1426/TC1427/TC1428 1.0 ELECTRICAL CHARACTERISTICS *Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions above those indicated in the operation sections of the specifications is not implied. Exposure to Absolute Maximum Rating conditions for extended periods may affect device reliability. Absolute Maximum Ratings* Supply Voltage ..................................................... +18V Input Voltage, Any Terminal ................................... VDD + 0.3V to GND – 0.3V Power Dissipation (TA 70°C) PDIP........................................................ 730 mW SOIC ....................................................... 470 mW Derating Factor PDIP....................................................... 8 mW/C SOIC ...................................................... 4 mW/C Operating Temperature Range C Version ........................................ 0°C to +70°C Storage Temperature Range.............. -65°C to +150°C TC1426/TC1427/TC1428 ELECTRICAL SPECIFICATIONS Electrical Characteristics: TA = +25°C, with 4.5V VDD16V, unless otherwise noted. Symbol Parameter Min Typ Max Units Test Conditions Input VIH Logic 1, High Input Voltage 3 — — V VIL Logic 0, Low Input Voltage — — 0.8 V IIN Input Current -1 — 1 A 0VVINVDD Output VOH High Output Voltage VDD – 0.025 — — V Figure 3-1, Figure 3-2 VOL Low Output Voltage — — 0.025 V Figure 3-1, Figure 3-2 RO Output Resistance — — 12 8 18 12  IOUT = 10 mA, VDD = 16V IPK Peak Output Current — 1.2 — A IREV Latch-Up Current Withstand Reverse Current — >500 — mA Switching Time (Note 1) tR Rise Time — — 35 nsec tF Fall Time — — 25 nsec Figure 3-1, Figure 3-2 tD1 Delay Time — — 75 nsec Figure 3-1, Figure 3-2 tD2 Delay Time — — 75 nsec Figure 3-1, Figure 3-2 — — — — 9 0.5 mA VIN = 3V (Both Inputs) VIN = 0V (Both Inputs) Figure 3-1, Figure 3-2 Power Supply Power Supply Current IS Note 1: Switching times ensured by design.  2001-2012 Microchip Technology Inc. DS21393D-page 3 TC1426/TC1427/TC1428 TC1426/TC1427/TC1428 ELECTRICAL SPECIFICATIONS (CONTINUED) Electrical Characteristics: Over operating temperature range with 4.5V VDD16V, unless otherwise noted. Symbol Parameter Min Typ Max Units V Test Conditions Input VIH Logic 1, High Input Voltage 3 — — VIL Logic 0, Low Input Voltage — — 0.8 V IIN Input Current -10 — 10 A 0VVINVDD Output VOH High Output Voltage VDD – 0.025 — — V Figure 3-1, Figure 3-2 VOL Low Output Voltage — — 0.025 V Figure 3-1, Figure 3-2 RO Output Resistance — — 15 10 23 18  IOUT = 10 mA, VDD = 16V IREV Latch-Up Current Withstand Reverse Current — >500 — mA Switching Time (Note 1) tR Rise Time — — 60 nsec Figure 3-1, Figure 3-2 tF Fall Time — — 40 nsec Figure 3-1, Figure 3-2 tD1 Delay Time — — 125 nsec Figure 3-1, Figure 3-2 tD2 Delay Time — — 125 nsec Figure 3-1, Figure 3-2 — — — — 13 0.7 mA VIN = 3V (Both Inputs) VIN = 0V (Both Inputs) Power Supply Power Supply Current IS Note 1: Switching times ensured by design. DS21393D-page 4  2001-2012 Microchip Technology Inc. TC1426/TC1427/TC1428 2.0 PIN DESCRIPTIONS The descriptions of the pins are listed in Table 2-1. TABLE 2-1: Pin No. (8-Pin PDIP, SOIC) PIN FUNCTION TABLE Symbol Description 1 NC No connection. 2 IN A Control input A, TTL/CMOS compatible logic input. 3 GND Ground. 4 IN B Control input B, TTL/CMOS compatible logic input. 5 OUT B 6 VDD 7 OUT A 8 NC  2001-2012 Microchip Technology Inc. Output B, CMOS totem-pole output. Supply input, 4.5V to 16V. Output A, CMOS totem-pole output. No connection. DS21393D-page 5 TC1426/TC1427/TC1428 3.0 APPLICATIONS INFORMATION 3.1 SUPPLY BYPASSING Large currents are required to charge and discharge capacitive loads quickly. For example, charging a 1000 pF load to 16V in 25 nsec requires a 0.8A current from the device's power supply. To ensure low supply impedance over a wide frequency range, a parallel capacitor combination is recommended for supply bypassing. Low-inductance ceramic MLC capacitors with short lead lengths (