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PDF TC4427A Data sheet ( Hoja de datos )
| Número de pieza | TC4427A | |
| Descripción | (TC4426A - TC4428A) 1.5A DUAL HIGH-SPEED POWER MOSFET DRIVERS | |
| Fabricantes | TelCom Semiconductor | |
| Logotipo |  |
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1TC4426A
TC4427A
TC4428A
1.5A DUAL HIGH-SPEED POWER MOSFET DRIVERS
FEATURES
s High Peak Output Current ............................... 1.5A
s Wide Operating Range .......................... 4.5V to 18V
s High Capacitive Load
Drive Capability ................. 1000 pF in 25 nsec Typ
s Short Delay Time ................................. 30 nsec Typ
s Matched Rise, Fall and Delay Times
s Low Supply Current
— With Logic “1” Input ............................ 1 mA Typ
— With Logic “0” Input ......................... 100 µA Typ
s Low Output Impedance ................................ 7Ω Typ
s Latch-Up Protected: Will Withstand 0.5A
Reverse Current
s Input Will Withstand Negative Inputs Up to 5V
s ESD Protected .................................................... 4 kV
s Pinout Same as TC426/TC427/TC428
GENERAL DESCRIPTION
The TC4426A/4427A/4428A are improved versions of
the earlier TC426/427/428 family of buffer/drivers (with
which they are pin compatible). They will not latch up under
any conditions within their power and voltage ratings. They
are not subject to damage when up to 5V of noise spiking (of
either polarity) occurs on the ground pin. They can accept,
without damage or logic upset, up to 500 mA of reverse
current (of either polarity) being forced back into their
outputs. All terminals are fully protected against up to 4 kV
of electrostatic discharge.
As MOSFET drivers, the TC4426A/4427A/4428A can
easily switch 1000 pF gate capacitances in under 30 ns, and
provide low enough impedances in both the ON and OFF
states to ensure the MOSFET's intended state will not be
affected, even by large transients.
2
3
4
PIN CONFIGURATIONS
NC 1
IN A 2
GND 3
IN B 4
TC4426A
8 NC
7 OUT A
6 VDD
5 OUT B
NC 1
8 NC
IN A 2
7 OUT A
GND 3 TC4427A 6 VDD
IN B 4
5 OUT B
NC 1
8 NC
IN A 2
7 OUT A
TC4428A
GND 3
6 VDD
IN B 4
5 OUT B
2,4 7,5
2,4 7,5
INVERTING
NONINVERTING
NC = NO INTERNAL CONNECTION
NOTE: SOIC pinout is identical to DIP.
27
45
DIFFERENTIAL
FUNCTIONAL BLOCK DIAGRAM
INVERTING
OUTPUTS
2 mA
VDD
300 mV
INPUT
4.7V
NONINVERTING
OUTPUTS
OUTPUT
GND
EFFECTIVE INPUT
C = 12 pF
TC4426A/TC4427A/TC4428A
NOTES: 1. TC4426A has 2 inverting drivers; TC4427A has 2 noninverting drivers.
2. TC4428A has one inverting and one noninverting driver.
3. Ground any unused driver input.
TELCOM SEMICONDUCTOR, INC.
ORDERING INFORMATION
Part No.
TC4426ACOA
TC4426ACPA
TC4426AEOA
TC4426AEPA
TC4426AMJA
TC4427ACOA
TC4427ACPA
TC4427AEOA
TC4427AEPA
TC4427AMJA
TC4428ACOA
TC4428ACPA
TC4428AEOA
TC4428AEPA
TC4428AMJA
Package
8-Pin SOIC
8-Pin Plastic DIP
8-Pin SOIC
8-Pin Plastic DIP
8-Pin CerDIP
8-Pin SOIC
8-Pin Plastic DIP
8-Pin SOIC
8-Pin Plastic DIP
8-Pin CerDIP
8-Pin SOIC
8-Pin Plastic DIP
8-Pin SOIC
8-Pin Plastic DIP
8-Pin CerDIP
Temp. Range
0°C to +70°C
0°C to +70°C
– 40°C to +85°C
– 40°C to +85°C
– 55°C to +125°C
0°C to +70°C
0°C to +70°C
– 40°C to +85°C
– 40°C to +85°C
– 55°C to +125°C
0°C to +70°C
0°C to +70°C
– 40°C to +85°C
– 40°C to +85°C
– 55°C to +125°C
5
6
7
TC4426A/7A/8A-9 10/21/96
4-251
8
1 page  
1.5A DUAL HIGH-SPEED
POWER MOSFET DRIVERS
TYPICAL CHARACTERISTICS (Cont.)
Supply Current vs. Frequency
VDD = 18v
60
50
CL= 2200pF CL= 1500pF
40
CL= 1000pF
CL= 100pF
30
20
10
0
0
500
1000
1500
2000
2500
FREQUENCY (KHz)
80
70
60
50
40
30
20
10
0
0
Supply Current vs. Frequency
VDD = 12v
CL= 2200pF
CL= 1500pF
CL= 1000pF
CL= 100pF
500 1000
1500
2000 2500
FREQUENCY (KHz)
40
35
30
25
20
15
10
5
0
0
Supply Current vs. Frequency
VDD = 6v
CL= 2200pF
CL= 1500pF
CL= 1000pF
CL= 100pF
500 1000
1500
2000
FREQUENCY (KHz)
2500
Quiescent Supply Current vs. Voltage
TEMPERATURE = 25°C
900
800
700
Both inputs = 1
600
500
400
300
200
100
Both inputs = 0
0
05
10
VDD (Volts)
15
20
TELCOM SEMICONDUCTOR, INC.
1
TC4426A
TC4427A
TC4428A
Supply Current vs. Capacitance Load
VDD = 18v
60
2MHz
50
900MHz
40
600MHz
30
20
10
0
0
200MHz
20MHz
500
1000
1500
2000
2500
CL (pF)
Supply Current vs.Capacitance Load
VDD = 12v
80
70
2MHz
60
50
40
30
20
10
0
0
500 1000
1500
CL (pF)
900MHz
600MHz
2000
200MHz
20MHz
2500
Supply Current vs. Capacitance Load
VDD = 6v
40
35 2MHz
30
25
15 900MHz
10
5
0
0
500 1000
1500
CL (pF)
600MHz
200MHz
20MHz
2000 2500
Quiescent Supply Current vs. Temperature
1100
1000
VDD = 18v
900
Both inputs = 0
800
700
600
500
400
300
200 Both inputs = 0
100
0
-100
-50
0
50 100
150
TEMPERATURE = (°C)
2
3
4
5
6
7
8
4-255
5 Page | ||
| Páginas | Total 5 Páginas | |
| PDF Descargar | [ Datasheet TC4427A.PDF ] | |
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