TC1426_13 Datasheet, PDF (1/16 Pages) Microchip Technology – 1.2A Dual High-Speed MOSFET Drivers

TC1426/TC1427/TC1428
1.2A Dual High-Speed MOSFET Drivers
Features:
• 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 V_DD
• Low Output Impedance: 8
Applications:
• Power MOSFET Drivers
• Switched Mode Power Supplies
• Pulse Transformer Drive
• Small Motor Controls
• Print Head Drive
Device Selection Table
Part Number Package
TC1426COA
TC1426CPA
TC1427COA
TC1427CPA
TC1428COA
TC1428CPA
8-Pin SOIC
8-Pin PDIP
8-Pin SOIC
8-Pin PDIP
8-Pin SOIC
8-Pin PDIP
Temp. Range
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
Package Type
8-Pin PDIP/SOIC
NC 1
8 NC
NC 1
8 NC
NC 1
8 NC
IN A 2
7 OUT A IN A 2
7 OUT A IN A 2
7 OUT A
TC1426CPA
TC1427CPA
TC1428CPA
GND 3
6 V_DD GND 3
6 V_DD GND 3
6 V_DD
IN B 4
5 OUT B IN B 4
5 OUT B IN B 4
5 OUT B
2, 4
7, 5
Inverting
2, 4
7, 5
Noninverting
2
7
4
5
NC 1
IN A 2
GND 3
IN B 4
8 NC
NC 1
7 OUT A IN A 2
TC1426COA
6 V_DD GND 3
5 OUT B IN B 4
8 NC
NC 1
7 OUT A IN A 2
TC1427COA
6 V_DD GND 3
5 OUT B IN B 4
8 NC
7 OUT A
TC1428COA
6 V_DD
5 OUT B
2, 4
7, 5
2, 4
7, 5
2
7
Inverting
NC = No connection
Noninverting
4
5
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, t_D1 and t_D2, 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.
 2001-2012 Microchip Technology Inc.
DS21393D-page 1