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TC426
TC427
TC428
1.5A DUAL HIGH-SPEED POWER MOSFET DRIVERS
FEATURES
GENERAL DESCRIPTION
■ High-Speed Switching (CL = 1000pF)........... 30nsec
■ High Peak Output Current................................. 1.5A
■ High Output Voltage Swing .................. VDD – 25mV
GND + 25mV
■ Low Input Current (Logic "0" or "1") ................ 1µA
■ TTL/CMOS Input Compatible
■ Available in Inverting and Noninverting
Configurations
■ Wide Operating Supply Voltage ............ 4.5V to 18V
■ Current Consumption
— Inputs Low .................................................. 0.4mA
— Inputs High .................................................... 8mA
■ Single Supply Operation
■ Low Output Impedance ........................................ 6Ω
■ Pinout Equivalent of DS0026 and MMH0026
■ Latch-Up Resistant: Withstands > 500mA
Reverse Current
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.
The low impedance, high-current driver outputs swing
a 1000pF load 18V in 30nsec. 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.
Input logic signals may equal the power supply volt-
age. Input current is a low 1µA, making direct interface to
CMOS/bipolar switch-mode power supply control ICs pos-
sible, as well as open-collector analog comparators.
Quiescent power supply current is 8mA maximum. The
TC426 requires 1/5 the current of the pin-compatible bipo-
lar DS0026 device. This is important in DC-to-DC con-
verter applications with power efficiency constraints and
high-frequencyswitch-modepowersupply applications. Qui-
escent current is typically 6mA when driving a 1000pF load
18V at 100kHz.
■ ESD Protected ......................................................2kV
PIN CONFIGURATIONS (DIP and SOIC)
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.
Other pin compatible driver families are the TC1426/
27/28, TC4426/27/28, and TC4426A/27A/28A.
1
2
3
4
8
7
6
5
NC
NC
IN A
GND
IN B
2, 4
7, 5
OUT A
V
TC426
DD
INVERTING
OUT B
1
2
3
4
8
7
6
5
NC
NC
IN A
GND
IN B
2, 4
7, 5
OUT A
V
TC427
TC428
DD
ORDERING INFORMATION
NONINVERTING
OUT B
Temperature
1
2
3
4
8
7
6
5
NC
NC
IN A
GND
IN B
2
4
7
5
Part No.
Package
Configuration
Range
OUT A
TC426COA
TC426CPA
TC426EOA
TC426EPA
TC426IJA
8-Pin SOIC
8-Pin PDIP
8-Pin SOIC
8-Pin SOIC
8-Pin CerDIP
8-Pin CerDIP
8-Pin SOIC
8-Pin PDIP
8-Pin SOIC
8-Pin SOIC
8-Pin CerDIP
8-Pin CerDIP
8-Pin SOIC
8-Pin PDIP
8-Pin SOIC
8-Pin SOIC
8-Pin CerDIP
8-Pin CerDIP
Inverting
0°C to +70°C
0°C to +70°C
V
DD
Inverting
OUT B
COMPLEMENTARY
Inverting
–40°C to +85°C
–40°C to +85°C
–25°C to +85°C
–55°C to +125°C
0°C to +70°C
NC = NO INTERNAL CONNECTION
Complementary
Inverting
FUNCTIONAL BLOCK DIAGRAM
TC426MJA
TC427COA
TC427CPA
TC427EOA
TC427EPA
TC427IJA
Inverting
Noninverting
Noninverting
Noninverting
Complementary
Noninverting
Noninverting
Complementary
Complementary
Complementary
Complementary
Complementary
Complementary
0°C to +70°C
+
V
–40°C to +85°C
–40°C to +85°C
–25°C to +85°C
–55°C to +125°C
0°C to +70°C
TC426
TC427
TC428
500µA
2.5mA
NONINVERTING
OUTPUT
INVERTING
OUTPUT
TC427MJA
TC428COA
TC428CPA
TC428EOA
TC428EPA
TC428IJA
(TC427)
(TC426)
0°C to +70°C
INPUT
–40°C to +85°C
–40°C to +85°C
–25°C to +85°C
–55°C to +125°C
TC426/7/8-7 10/11/96
4-169
Note: The TC428 has one inverting and one noninverting
driver. Ground any unused driver input.
TC428MJA
TELCOM SEMICONDUCTOR, INC.
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