TC426/TC427/TC428
1.5A Dual High-Speed Power MOSFET Drivers
Package Type
Features:
8-Pin PDIP/SOIC/CERDIP
• High-Speed Switching (CL = 1000 pF): 30 nsec
• High Peak Output Current: 1.5A
• High Output Voltage Swing:
- VDD -25 mV
NC
IN A
GND
IN B
1
2
3
4
8
7
6
5
NC
2, 4
Inverting
7, 5
OUT A
V
TC426
DD
OUT B
- GND +25 mV
• Low Input Current (Logic ‘0’ or ‘1’): 1 μA
• TTL/CMOS Input Compatible
NC
IN A
GND
IN B
1
2
3
4
8
7
6
5
NC
2, 4
7, 5
OUT A
• Available in Inverting and Noninverting
Configurations
V
TC427
TC428
DD
Noninverting
OUT B
• Wide Operating Supply Voltage:
- 4.5V to 18V
NC
1
2
3
4
8
7
6
5
NC
2
4
7
5
OUT A
IN A
• Current Consumption:
GND
V
DD
IN B
OUT B
- Inputs Low – 0.4 mA
Complementary
- Inputs High – 8 mA
NC = No internal connection
• Single Supply Operation
• Low Output Impedance: 6Ω
• Pinout Equivalent of DS0026 and MMH0026
General Description:
The TC426/TC427/TC428 are dual CMOS high-speed
drivers. A TTL/CMOS input voltage level is translated
into a rail-to-rail output voltage level swing. The CMOS
output is within 25 mV of ground or positive supply.
• Latch-Up Resistant: Withstands > 500 mA
Reverse Current
• ESD Protected: 2 kV
The low-impedance, high-current driver outputs swing
a 1000 pF load 18V in 30 nsec. The unique current and
voltage drive qualities make the TC426/TC427/TC428
ideal power MOSFET drivers, line drivers, and DC-to-
DC converter building blocks.
Applications:
• Switch Mode Power Supplies
• Pulse Transformer Drive
• Clock Line Driver
Input logic signals may equal the power supply voltage.
Input current is a low 1 μA, making direct interface
to CMOS/bipolar switch-mode power supply control
ICs possible, as well as open-collector analog
comparators.
• Coax Cable Driver
Device Selection Table
Part
Number
Temp.
Range
Package
Configuration
Quiescent power supply current is 8 mA maximum. The
TC426 requires 1/5 the current of the pin-compatible
bipolar DS0026 device. This is important in DC-to-DC
converter applications with power efficiency constraints
and high-frequency switch-mode power supply
applications. Quiescent current is typically 6 mA when
driving a 1000 pF load 18V at 100 kHz.
TC426COA
TC426CPA
TC426EOA
TC426EPA
TC426IJA
8-Pin SOIC
8-Pin PDIP
8-Pin SOIC
8-Pin PDIP
8-Pin CERDIP
Inverting
Inverting
Inverting
Inverting
Inverting
Inverting
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
-25°C to +85°C
-55°C to +125°C
TC426MJA 8-Pin CERDIP
TC427COA
TC427CPA
TC427EOA
TC427EPA
TC427IJA
8-Pin SOIC
8-Pin PDIP
8-Pin SOIC
8-Pin PDIP
8-Pin CERDIP
Noninverting
Noninverting
Noninverting
Noninverting
Noninverting
Noninverting
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
-25°C to +85°C
-55°C to +125°C
The inverting TC426 driver is pin-compatible with the
bipolar DS0026 and MMH0026 devices. The TC427 is
noninverting; the TC428 contains an inverting and non-
inverting driver.
TC427MJA 8-Pin CERDIP
TC428COA
TC428CPA
TC428EOA
TC428EPA
TC428IJA
8-Pin SOIC
8-Pin PDIP
8-Pin SOIC
8-Pin PDIP
Complementary
Complementary
Complementary
Complementary
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
-25°C to +85°C
Other pin compatible driver families are the TC1426/
8-Pin CERDIP Complementary
TC1427/TC1428,
TC4426/TC4427/TC4428
and
TC428MJA 8-Pin CERDIP Complementary -55°C to +125°C
TC4426A/TC4427A/TC4428A.
© 2006 Microchip Technology Inc.
DS21415C-page 1
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