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