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1.5A DUAL HIGH-SPEED POWER MOSFET DRIVERS
TC4426A TC4427A TC4428A
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.
PIN CONFIGURATIONS
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................................7? 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
ORDERING INFORMATION
Part No.
Package
Temp. Range
TC4426ACOA 8-Pin SOIC
0°C to +70°C TC4426ACPA 8-Pin Plastic DIP 0°C to +70°C TC4426AEOA 8-Pin SOIC
– 40°C to +85°C TC4426AEPA 8-Pin Plastic DIP – 40°C to +85°C TC4426AMJA 8-Pin CerDIP – 55°C to +125°C TC4427ACOA 8-Pin SOIC
0°C to +70°C TC4427ACPA 8-Pin Plastic DIP 0°C to +70°C TC4427AEOA 8-Pin SOIC
– 40°C to +85°C TC4427AEPA 8-Pin Plastic DIP – 40°C to +85°C TC4427AMJA 8-Pin CerDIP – 55°C to +125°C TC4428ACOA 8-Pin SOIC
0°C to +70°C TC4428ACPA 8-Pin Plastic DIP 0°C to +70°C TC4428AEOA 8-Pin SOIC
– 40°C to +85°C TC4428AEPA 8-Pin Plastic DIP – 40°C to +85°C TC4428AMJA
8-Pin CerDIP
– 55°C to +125°C
TC4426A/7A/8A-9 10/21/96
1.5A DUAL HIGH-SPEED
POWER MOSFET DRIVERS TC4426A
TC4427A
TC4428A
ABSOLUTE MAXIMUM RATINGS*
Supply Voltage (22)
Input Voltage, IN A or IN B..(V DD + 0.3V) to (GND – 5.0V) Maximum Chip Temperature.................................+150°C Storage Temperature Range................– 65°C to +150°C Lead Temperature (Soldering, 10 sec).................+300°C Package Thermal Resistance
CerDIP RθJ-A................................................150°C/W CerDIP RθJ-C..................................................50°C/W PDIP RθJ-A...................................................125°C/W PDIP RθJ-C.....................................................42°C/W SOIC RθJ-A...................................................155°C/W SOIC RθJ-C.....................................................45°C/W Operating Temperature Range
C Version...............................................0°C to +70°C
E Version..........................................– 40°C to +85°C
M Version.......................................– 55°C to +125°C Package Power Dissipation (T A≤ 70°C)
Plastic.............................................................730mW CerDIP............................................................800mW SOIC...............................................................470mW *Static-sensitive device. Unused devices must be stored in conductive material. Protect devices from static discharge and static fields. Stresses above those listed under "Absolute Maximum Ratings" may cause perma-nent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions above those indicated in the operation sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS:Over operating temperature range with 4.5V ≤ V DD≤ 18V, unless
otherwise specified.
Symbol Parameter Test Conditions Min Typ Max Unit
Input
V IH Logic 1 High Input Voltage 2.4——V
V IL Logic 0 Low Input Voltage——0.8V
I IN Input Current– 0V ≤ V IN≤ V DD T A = 25°C–1—1μA
– 40°C ≤ T A ≤ 85°C– 10—10
Output
V OH High Output Voltage DC Test V DD – 0.025——V
V OL Low Output Voltage DC Test——0.025V
R O Output Resistance V DD = 18V, I O = 10mA T A = 25°C—79?
0°C ≤ T A ≤ 70°C—710
– 40°≤ T A ≤ 85°C—811
I PK Peak Output Current V DD = 18V— 1.5—A
I REV Latch-Up Protection Duty Cycle ≤ 2%V DD = 18V0.5——A
Withstand Reverse Current t ≤ 300μsec
Switching Time (Note 1)
t R Rise Time Figure 1T A = 25°C—2535nsec
0°C ≤ T A ≤ 70°C—2740
– 40°C ≤ T A ≤ 85°C—2940
t F Fall Time Figure 1T A = 25°C—2535nsec
0°C ≤ T A ≤ 70°C—2740
– 40°C ≤ T A ≤ 85°C—2940
t D1Delay Time Figure 1T A = 25°C—3035nsec
0°C ≤ T A ≤ 70°C—3340
– 40°C ≤ T A ≤ 85°C—3545
t D2Delay Time Figure 1T A = 25°C—3035nsec
0°C ≤ T A ≤ 70°C—3340
– 40°C ≤ T A ≤ 85°C—3545
Power Supply
I S Power Supply Current V IN = 3V (Both Inputs)V DD = 18V— 1.0 2.0mA
V IN = 0V (Both Inputs)—0.10.2
NOTE: 1. Switching times are guaranteed by design.
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1.5A DUAL HIGH-SPEED POWER MOSFET DRIVERS
TC4426A TC4427A TC4428A
Figure 1. Switching Time Test Circuit
1.5A DUAL HIGH-SPEED POWER MOSFET DRIVERS
TC4426A TC4427A TC4428A
TYPICAL CHARACTERISTICS
5.0
7.5
10.012.515.017.5
02040
6080100
V DD (Volts)
t R (n s e c )
C L = 470pF C L = 100pF
C L = 1000pF
C L = 2200pF
C L = 1500pF 5.0
7.5
10.012.515.017.5
020
4060
80100V DD (Volts)
t F (n s e c )
C L = 470pF
C L = 100pF
C L = 1000pF
C L = 2200pF
C L = 1500pF
1520
25303540t D1
t D2
1
234567
8
9
20
70605040308090100110V DD (Volts)
D e l a y T i m e (n s e c )
t D1
t D2
05101520
50454035302520
5560
V DD (Volts)
D e l a y T i m e (n s e c )
D e l a y T i m e (n s e c )
V DD (Volts)
V DD (Volts)
t R t D2t F t D1-100
-50
50
100
150
-100
-50
050100
150
2422201816142628
TEMPERATURE (°C)
TEMPERATURE (°C)
T i m e (n s e c )
5
1015
20
252015105030R d s (o n )o h m s
T A = 125°C
T A = 125°C
5101520
252015105030R d s (o n )o h m s
T A = 125°C
T A = 125°C
Rise Time vs. Supply Voltage
Temperature = 25°C
Effect of Input Amplitude on Delay
V DD = 10V C L = 1000pF
Propagation Delay Time vs. Supply Voltage
C L = 1000pF
Rise and Fall Times vs. Temperature
V DD = 18V C L = 1000pF
High-State Output Resistance
Low State Output Resistance
Propagation Delay Time vs.Temperature
V DD = 18V C L = 1000pF
Fall Time vs. Supply Voltage
Temperature = 25°C
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1.5A DUAL HIGH-SPEED POWER MOSFET DRIVERS
TC4426A TC4427A TC4428A
TYPICAL CHARACTERISTICS (Cont.)
500
1000
1500
2000
2500
020********
60FREQUENCY (KHz)
I S u p p l y (m A )
I S u p p l y (m A )
C L = 100pF
C L = 1000pF C L = 2200pF
C L = 1500pF
70603080V DD (Volts)
3025201510503540 I S u p p l y (m A )
0108007006005004002001000
300900I Q u i e s c e n t (μA )
Supply Current vs. Frequency
V DD = 18v
Supply Current vs. Frequency
V DD = 12v
500
1000
1500
2000
2500
20
10304050
60
C L (pF)
I S u p p l y (m A )
2MHz
900MHz
600MHz
200MHz
20MHz
Supply Current vs. Capacitance Load
V DD = 18v
Supply Current vs.Capacitance Load
V DD = 12v
TEMPERATURE = (°C)
-100
-500
50100150