2005-2013 Microchip Technology Inc. DS21939B-page 1
TC4426AM/TC4427AM/TC4428AM
Features
• High Peak Output Current: 1.5A
• Wide Input Supply Voltage Operating Range:
- 4.5V to 18V
• High Capacitive Load Drive Capability:
- 1000 pF in 25 ns (typ .)
• Short Delay Times: 30 ns (typ.)
• Matched Rise, Fall and Delay Times
• Low Supply Current:
- With Logic ‘1’ Input – 1 mA (typ.)
- With Logic ‘0’ Input – 100 µA (typ.)
• Low Output Impedance: 7(typ.)
• Latch-U p P rotec te d: Wi ll Withstand 0.5 A Rev ers e
Current
• Input: Will Withstand Negative Inputs Up to 5V
• ESD Protected: 4 kV
• Pin-compatible with the
TC426M/TC427M/TC428M and
TC4426M/TC4427M/TC4428M
• Wide Operating Temperature Range:
- -55°C to +125°C
• See TC4426A/TC4427A/TC4428A Data Sheet
(DS21423) for additional temperature range and
packaging offerings
Applications
• Switch-mode Power S upp lie s
• Line Drivers
• Pulse Transformer Drive
General Description
The TC4426AM/TC4427AM/TC4428AM are improved
versions of the earlier TC4426M/TC4427M/TC4428M
family of MOSFET drivers. In addition to matched rise
and fall times, the TC4426AM/TC4427AM/TC4428AM
devices have matched leading and falling edge
propagation delay times.
These devices are highly latch-up resistant 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 Electrostatic Discharge (ESD) up to
4kV.
The TC4426AM/TC4427AM/TC4428AM MOSFET
drivers can easily charge/discharge 1000 pF gate
capacitances in under 30 ns, while providing 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 .
Package Types
8-Pin CERDIP
1
2
3
4
NC
5
6
7
8OUT A
OUT B
NC
IN A
GND
IN B VDD
TC4426AM
TC4427AM
TC4426AM TC4427AM
NC
OUT A
OUT B
VDD
TC4428AM
NC
OUT A
OUT B
VDD
TC4428AM
1.5A Dual High-Speed Power MOSFET Drivers
TC4426AM/TC4427AM/TC4428AM
DS21939B-page 2 2005-2013 Microchip Technology Inc.
Functional Block Diagram
Effective
Input C = 12 pF
(Each Input) TC4426AM/TC4427AM/TC4428AM(1)
Output
Input
GND(2)
VDD
300 mV
4.7V
Inverting
Non-Inverting
Note 1: The TC4426AM has two inverting drivers; the TC4427AM has two non-inverting drivers;
the TC4428AM has one inverting and one non-inverting driver.
2: Ground any unused driver input.
2005-2013 Microchip Technology Inc. DS21939B-page 3
TC4426AM/TC4427AM/TC4428AM
1.0 ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings†
Supply Voltage................................................................ +22V
Input Voltage, IN A or IN B..........(VDD + 0.3V) to (GND – 5V)
† Notice: Stresses above those listed under "Absolute
Maximum Ratings" may cause permanent 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.
TEMPERATURE CHARACTERISTICS
DC CHARACTERISTICS
Electrical Specifications: Unless otherwise noted, over operating temperature range with 4.5V VDD18V.
Parameters Sym Min Typ Max Units Conditions
Input
Logi c ‘ 1’, Hi gh Input Volt ag e VIH 2.4 — — V
Logic ‘0’, Low Input Voltage VIL ——0.8V
Input Current IIN -1.0
-10 —
—+1.0
+10 µA 0VVINVDD
Output
High Output Voltage VOH VDD – 0.025 — — V DC TEST
Low Ou tput Voltage VOL — — 0.025 V DC TEST
Output Re si stanc e RO—79IOUT = 10 mA, VDD = 18V, TA = +25°C
—812 -55°C TA +125°C
Peak Output Current IPK —1.5—AV
DD = 18V
Latch-Up Prote cti on
Withstand Reverse Current IREV — >0.5 — A Duty cycle2%, t 300 µs
VDD = 18V
Switching T ime (Note 1)
Rise Time tR—2535nsT
A = +25°C
—3040 -55°C TA +125°C, Figure 4-1
Fall Time tF—2535nsT
A = +25°C
—3040 -55°C TA +125°C, Figure 4-1
Delay Time tD1 —3035nsT
A = +25°C
—3850 -55°C TA +125°C, Figure 4-1
Delay Time tD2 —3035nsT
A = +25°C
—3850 -55°C TA +125°C, Figure 4-1
Power Supply
Power Supply Current IS—
—1.0
0.1 2.0
0.2 mA VIN = 3V (Both inputs )
VIN = 0V (Both inputs), VDD = 18V
Note 1: Switching times ensured by design.
Electrical Specifications: Unless otherwise noted, all parameters apply with 4.5V VDD 18V.
Parameters Sym Min Typ Max Units Conditions
Temperature Ranges
Specified Temperature Range (M) TA-55 — +125 ºC
Maximum Junction Temperatur e TJ——+150ºC
Storage Temperature Range TA-65 — +150 ºC
Package Thermal Resistances
Thermal Resistance, 8L-CERDIP JA — 150 — ºC/W
TC4426AM/TC4427AM/TC4428AM
DS21939B-page 4 2005-2013 Microchip Technology Inc.
2.0 TY PICAL PERFORMANCE CURVES
Note: Unless otherwise indicated, over operating temperature range with 4.5V VDD18V.
FIGURE 2-1: Rise Time vs. Supply
Voltage.
FIGURE 2-2: Delay Time vs. Input
Amplitude.
FIGURE 2-3: Rise and Fall Times vs.
Temperature.
FIGURE 2-4: Fall Time vs. Supply
Voltage.
FIGURE 2-5: Propagation Delay Time vs.
Supply Voltage.
FIGURE 2-6: Propagation Delay Time vs.
Temperature.
Note: The graphs and tables provided following this note are a statistical summary based on a limited number of
samples and are provided for informational purposes only. The performance characteristics listed herein
are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified
operating range (e.g., outside specified power supply range) and therefore outside the warranted range.
5.0 7.5 10.0 12.5 15.0 17.5
0
20
40
60
80
100
T
A
= +25°C
V
DD
(V)
C
L
= 2200 pF
C
L
= 1500 pF
C
L
= 100 pF
C
L
= 1000 pF
C
L
= 470 pF
t
RISE
(nsec)
12 3 4 5 67 8 9
20
70
60
50
40
30
80
90
100
110
Delay Time (nsec)
Input Amplitude (V)
CL = 1000 pF
VDD = 10V
tD1
tD2
-100 -50 0 50 100 150
24
22
20
18
16
14
26
28
Time (nsec)
C
L
= 1000 pF
V
DD
= 18V
TEMPERATURE (
°
C)
t
FALL
t
RISE
5.0 7.5 10.0 12.5 15.0 17.5
0
20
40
60
80
100
CL= 100pF
T
A
= +25°C
V
DD
(V)
C
L
= 2200pF
C
L
= 2200 pF
C
L
= 1500 pF
C
L
= 100 pF
C
L
= 1000 pF
C
L
= 470 pF
t
FALL
(nsec)
0 5 10 15 20
50
45
40
35
30
25
20
55
60
Delay Time (nsec)
VDD (V)
CL = 1000 pF
tD1
tD2
15
20
25
30
35
40
Delay Time (nsec)
-100 -50 0 50 100 150
C
L
= 1000 pF
V
DD
= 18V
TEMPERATURE (°C)
t
D1
t
D2
2005-2013 Microchip Technology Inc. DS21939B-page 5
TC4426AM/TC4427AM/TC4428AM
Note: Unless otherwise indicated, over operating temperature range with 4.5V VDD18V.
FIGURE 2-7: High-State Output
Resistance.
FIGURE 2-8: Supply Cur rent vs .
Frequency.
FIGURE 2-9: Supply Cur rent vs .
Frequency.
FIGURE 2-10: Low-State Output
Resistance.
FIGURE 2-11: Supply Current vs.
Capacitive Loa d.
FIGURE 2-12: Supply Current vs.
Capacitive Loa d.
0 5 10 15 20
25
20
15
10
5
0
30
VDD
(V)
R
DS(ON)
(Ω)
T
A
= +125°C
T
A
= +25°C
0500 1000 1500 2000 2500
0
20
10
30
40
50
60
FREQUENCY (kHz)
ISUPPLY (mA)
VDD = 18V
CL = 2200 pF CL = 1500 pF
CL = 1000 pF CL = 100 pF
FREQUENCY (kHz)
0500 1000 1500 2000 2500
70
60
50
40
30
20
10
0
80
I
SUPPLY
(mA)
V
DD
= 12V C
L
= 2200 pF
C
L
= 1500 pF
C
L
= 1000 pF
C
L
= 100 pF
0510 15 20
25
20
15
10
5
0
30
V
DD
(V)
R
DS(ON)
(Ω)
T
A
= +125°C
T
A
= +25°C
0500 1000 1500 2000 2500
0
20
10
30
40
50
60 2 MHz
VDD
= 18V
ISUPPLY
(mA)
C
LOAD
(pF)
900 kHz
600 kHz
200 kHz
20 kHz
0500 1000 1500 2000 2500
70
60
50
40
30
20
10
0
80
ISUPPLY (mA)
CLOAD (pF)
VDD = 12V
900 kHz
600 kHz
200 kHz
20 kHz
2 MHz
TC4426AM/TC4427AM/TC4428AM
DS21939B-page 6 2005-2013 Microchip Technology Inc.
Note: Unless otherwise indicated, over operating temperature range with 4.5V VDD18V.
FIGURE 2-13: Su ppl y Cur re nt vs.
Frequency.
FIGURE 2-14: Quiescent Supply Current
vs. Voltage.
FIGURE 2-15: Supply Current vs.
Capacitive Loa d.
FIGURE 2-16: Quiescent Supply Current
vs. Temperature.
0500 1000 1500 2000 2500
30
25
20
15
10
5
0
35
40
FREQUENCY (kHz)
I
SUPPLY
(mA)
V
DD
= 6V C
L
= 2200 pF
C
L
= 1500 pF
C
L
= 1000 pF
C
L
= 100 pF
TA = 25°C
BOTH INPUTS = 1
0 5 10 15 20
800
700
600
500
400
200
100
0
300
900
IQUIESCENT (µA)
V
DD (V)
BOTH INPUTS = 0
0500 1000 1500 2000 2500
30
25
15
10
5
0
35
40
I
SUPPLY
(mA)
C
LOAD
(pF)
V
DD
= 6V
900 kHz
600 kHz
200 kHz
20 kHz
2 MHz
20
-100 -50 0 50 100 150
1000
900
800
700
600
400
300
200
100
0
500
1100
IQUIESCENT (µA)
TEMPERATURE (
°
C)
V
DD = 18V
BOTH INPUTS = 1
BOTH INPUTS = 0
2005-2013 Microchip Technology Inc. DS21939B-page 7
TC4426AM/TC4427AM/TC4428AM
3.0 PIN DESCRIPTIONS
The descriptions of the pins are listed in Table 3-1.
TABLE 3-1: PIN FUNCTION TABLE
3.1 Inputs A & B (IN A and IN B)
MOSFET driver IN A & B are high-impedance,
TTL/CMOS-compatible inputs. These inputs also have
300 mV of hysteresis between the high and low
thresholds, which prevents output glitching even when
the rise and fall time of the input signal is very slow.
3.2 Ground (GND)
The GND pin is the r eturn pat h for both the bia s current
and the high peak current that discharges the external
load capacitance. The ground pin should be tied into a
groun d plane or have a very sh ort trace to the bias su p-
ply source r eturn.
3.3 Outputs A & B (OUT A and OUT B)
MOSFET driver OUT A & B are low-impedance,
CMOS, push-pull style outputs. The pull-down and pull-
up devices are of equal strength, making the rise and
fall times equiv al ent.
3.4 Supply Input (VDD)
The VDD in put is the bias s upply for the MO SFET driver
and is rat ed fo r 4.5 V to 18 V, with respect to the groun d
pin. The VDD input should be bypassed with local
ceramic capacitors. The value of these capacitors
should be chosen based on the capacitive load that is
being driven.
8-Pin
CERDIP Symbol Description
1 NC No connection
2 IN A Input A
3 GND Ground
4 IN B Input B
5 OUT B Output B
6V
DD Supply input
7 OUT A Output A
8 NC No connection
TC4426AM/TC4427AM/TC4428AM
DS21939B-page 8 2005-2013 Microchip Technology Inc.
4.0 APPLICATIONS INFORMATION
FIGURE 4-1: Switching Time Test Circuit.
CL = 1000 pF
0.1 µF
4.7 µF
Inverting Driver
Non-Inverting Driver
Input
VDD = 18V
Input
Output
tD1 tF
tR
tD2
Input: 100 kHz,
square wave,
tRISE = t FALL 10 ns
Output
Input
Output
tD1 tF
tR
tD2
+5V
10%
90%
10%
90%
10%
90%
VDD
0V
90%
10%
10% 10%
90%
+5V
VDD
0V
0V
0V
90%
3
27
6
45
2005-2013 Microchip Technology Inc. DS21939B-page 9
TC4426AM/TC4427AM/TC4428AM
5.0 PACKAGING INFORMATION
5.1 Package Marking Information
8-Lead CERDIP (300 mil) Example:
XXXXXXXX
XXXXXNNN
YYWW
TC4427A
MJA^^ 256
0543
Legend: XX...X Customer-specific information
Y Year code (last digit of calendar year)
YY Year code (last 2 digits of calendar year)
WW Week code (week of January 1 is week ‘01’)
NNN Alpha nu me ric trac ea bil ity code
Pb-free JEDEC designator for Matte Tin (Sn)
*This package is Pb-free. The Pb-free JEDEC designator ( )
can be found on the outer packaging for this package.
Note: In the even t the full Mic rochip part nu mber ca nn ot be marked o n one lin e, it wil l
be carried over to the next line, thus limiting the number of available
characters for customer-specific information.
3
e
3
e
3
e
TC4426AM/TC4427AM/TC4428AM
DS21939B-page 10 2005-2013 Microchip Technology Inc.
8-Lead Ceramic Dual In-line – 300 mil (CERDIP)
1
2
D
n
E1
c
eB
E
p
L
A2
B
B1
A
A1
Note: For the most cu rr e nt pac ka ge dr aw i ngs, p le ase se e t he Mi c ro c hi p Pa ck ag ing Specifica t i on lo ca t ed
at http://www.microchip.com/packaging
2005-2013 Microchip Technology Inc. DS21939B-page 11
TC4426AM/TC4427AM/TC4428AM
APPENDIX A: REVISION HISTORY
Revision A (February 2005)
• Original Rel ease of this Document.
Revision B (January 2013)
Added a note to each package outline drawing.
TC4426AM/TC4427AM/TC4428AM
DS21939B-page 12 l 2005-2013 Microchip Technology Inc.
NOTES:
2005-2013 Microchip Technology Inc. DS21939B-page 13
TC4426AM/TC4427AM/TC4428AM
PRODUCT IDENTIFICATION SYSTEM
To order or o btain information, e.g., on pricing or delivery, refer to the factory or the listed sales office.
Device and
Temper atu re R ang e: TC4426AM: 1.5A Dual MOSFET Driver, Inverting,
-55°C to +125°C
TC4427AM: 1.5A Dual MOSFET Driver, Non-Inverting,
-55°C to +125°C
TC4428AM: 1.5A Dual MOSFET Driver, Complementary,
-55°C to +125°C
Package: JA = Ceramic Dual In-line (300 mil Body), 8-lead
PART NO. XX
Package
Device and Temperature
Range
Examples:
a) TC4426AMJA: 1.5A Dual MOSFET
driver, Inverting,
-55°C to +125°C
8LD CERDIP package.
a) TC4427AMJA: 1.5A Dual MOSFET
driver, Non-Inverting
-55°C to +125°C
8LD CERDIP package.
a) TC4428AMJA: 1.5A Dual MOSFET
driver, Complementary,
-55°C to +125°C
8LD CERDIP package.
TC4426AM/TC4427AM/TC4428AM
DS21939B-page 14 2005-2013 Microchip Technology Inc.
NOTES:
2005-2013 Microchip Technology Inc. DS21939B-page 15
Information contained in this publication regarding device
applications a nd the lik e is provided only f or yo ur convenience
and may be supers ed ed by u pda t es . It is y our responsibil it y to
ensure that your application meets with your specifications.
MICROCHIP MAKES NO REPRESENTATIONS OR
WARRANTIES OF ANY KIND WHETHER EXPRESS OR
IMPLIED, WRITTEN OR ORAL, STATUTORY OR
OTHERWISE, RELATED TO THE INFORMATION,
INCLUDING BUT NOT LIMITED TO ITS CONDITION,
QUALITY, PERFORMANCE, MERCHANTABILITY OR
FITNESS FOR PURPOSE. Microchip disclaims all liability
arising from this information and its use. Use of Microchip
devices in life support and/or safety applications is entirely at
the buyer’s risk, and the buyer agrees to defend, indemnify and
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suits, or expenses resulting from such use. No licenses are
conveyed, implicitly or otherwise, under any Microchip
intellectual property rights.
Trademarks
The Microchip name and logo, the Microchip logo, dsPIC,
FlashFlex, KEELOQ, KEELOQ logo, MPLAB, PIC, PICmicro,
PICSTART, PIC32 logo, rfPIC, SST, SST Logo, SuperFlash
and UNI/O are registered trademarks of Microchip T echnology
Incorporated in the U.S.A. and other countries.
FilterLab, Hampshire, HI-TECH C, Linear Active Thermistor,
MTP, SEEVAL and The Embedded Control Solutions
Company are registered trademarks of Microchip Technology
Incorporated in the U.S.A.
Silicon Storage Technology is a registered trademark of
Microchip Technology Inc. in other countries.
Analog-for-the-Digital Age, Application Maestro, BodyCom,
chipKIT, chipKIT logo, CodeGuard, dsPICDEM,
dsPICDEM.net, dsPICworks, dsSPEAK, ECAN,
ECONOMONIT OR, FanSense, HI-TIDE, In-Circuit Serial
Programm ing, ICSP, Mindi, MiWi, MPASM, MPF, MPLAB
Certified logo, MPLIB, MPLINK, mTouch, Omniscient Code
Generation, PICC, PICC-18, PICDEM, PICDEM.net, PICkit,
PICtail, REAL ICE, rfLAB, Select Mode, SQI, Serial Quad I/O,
Total Endurance, TSHARC, UniWinDriver , WiperLock, ZENA
and Z-Scale are trademarks of Microchip Technology
Incorporated in the U.S.A. and other countries.
SQTP is a service mark of Microchip T echnology Incorporated
in the U.S.A.
GestIC and ULPP are registered trademarks of Microchip
Te c hnolog y Germany II Gm bH & Co. & KG, a subsidiary of
Microchip Technology Inc., in other countries.
All other trademarks mentioned herein are property of their
respective companies.
© 2005-2013, Microchip Technology Incorporated, Printed in
the U.S.A., All Rights Reserved.
Printed on recycled paper.
ISBN: 9781620769201
Note the following details of the code protection feature on Microchip devices:
• Microchip products meet the specification contained in their particular Microchip Data Sheet.
• Microchip believes that its family of products is one of t he most secure famili es of its kind on t he market today, when used in the
intended manner and under normal conditions.
• The re are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our
knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data
Sheets. Most likely, the person doing so is engaged in theft of intellectual property.
• Microchip is willing to work with the customer who is concerned about the integrity of their code.
• Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not
mean that we are guaranteeing the product as “unbreakable.”
Code protection is c onstantly evolving. We a t Microc hip are co m mitted to continuously improving the code prot ect ion featur es of our
products. Attempts to break Microchip’ s code protection feature may be a violation of the Digital Mill ennium Copyright Act. If such act s
allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.
Microchip received ISO/TS-16949:2009 certification for its worldwide
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are for its PIC® MCUs and dsPIC® DSCs, KEELOQ® code hopping
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QUALITY MANAGEMENT S
YSTEM
CERTIFIED BY DNV
== ISO/TS 16949 ==
DS21939B-page 16 2005-2013 Microchip Technology Inc.
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Fax: 82-53-744-4302
Korea - Seoul
Tel: 82-2-554-7200
Fax: 82-2-558-5932 or
82-2-558-5934
Malaysia - Kuala Lumpur
Tel: 60-3-6201-9857
Fax: 60-3-6201-9859
Malaysia - Penang
Tel: 60-4-227-8870
Fax: 60-4-227-4068
Philippines - Manila
Tel: 63-2-634-9065
Fax: 63-2-634-9069
Singapore
Tel: 65-6334-8870
Fax: 65-6334-8850
Taiwan - Hsin Chu
Tel: 886-3-5778-366
Fax: 886-3-5770-955
Taiwan - Kaohsiung
Tel: 886-7-213-7828
Fax: 886-7-330-9305
Taiwan - T aipei
Tel: 886-2-2508-8600
Fax: 886-2-2508-0102
Thailand - Bangkok
Tel: 66-2-694-1351
Fax: 66-2-694-1350
EUROPE
Austria - Wels
Tel: 43-7242-2244-39
Fax: 43-7242-2244-393
Denmark - Cop e nha gen
Tel: 45-4450-2828
Fax: 45-4485-2829
France - Paris
Tel: 33-1-69-53-63-20
Fax: 33-1-69-30-90-79
Germany - Munich
Tel: 49-89-627-144-0
Fax: 49-89-627-14 4-44
Italy - Milan
Tel: 39-0331-742611
Fax: 39-0331-466781
Netherlands - Drunen
Tel: 31-416-690399
Fax: 31-416-690340
Spain - Ma dri d
Tel: 34-91-708-08-90
Fax: 34-91-708-08 -91
UK - Wokingham
Tel: 44-118-921-5869
Fax: 44-118-921-5820
Worldwide Sales and Service
11/29/12