Datasheet

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 2002-2013 Microchip Technology Inc. DS20001423H-page 1

TC4426A/TC4427A/TC4428A

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 (typical)

• Short Delay Times – 30 ns (typical)

• Matched Rise, Fall and Delay Times

• Low Supply Current:

- With Logic ‘1’ Input – 1 mA (typical)

- With Logic ‘0’ Input – 100 µA (typical)

• Low Output Impedance – 7(typical)

• Latch-Up Protected: Will Withstand 0.5A Reverse

Current

• Input Will Withstand Negative Inputs Up to 5V

• Electrostatic Discharge (ESD) Protected – 2 kV

• Pin-compatible with TC426/TC427/TC428 and

TC4426/TC4427/TC4428

• Space-saving 8-Pin MSOP and 8-Pin 6x5 DFN-S

Packages

Applications:

• Switch Mode Power Supplies

• Line Drivers

• Pulse Transformer Drive

General Description:

The TC4426A/TC4427A/TC4428A are improved

versions of the earlier TC4426/TC4427/TC4428 family

of MOSFET drivers. In addition to matched rise and fall

times, the TC4426A/TC4427A/TC4428A 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 2 kV.

The TC4426A/TC4427A/TC4428A MOSFET drivers

can easily charge/discharge 1000 pF gate

capacitances in under 30 ns. These devices 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.

Package Types

8-Pin 6x5 DFN-S*

IN A

GND

IN B

OUT A

OUT B

IN A

GND

IN B

OUT A

OUT B

OUT A

OUT B

OUT A

OUT B

OUT A

OUT B

OUT A

OUT B

8-Pin MSOP/

PDIP/SOIC

TC4426A

TC4427A

TC4428A

TC4427A

TC4426A

TC4428A

* Includes Exposed Thermal Pad (EP); see Table 3-1.

1.5A Dual High-Speed Power MOSFET Drivers

Summary of content (26 pages)

PAGE 1
TC4426A/TC4427A/TC4428A 1.5A Dual High-Speed Power MOSFET Drivers Features: General Description: • High Peak Output Current – 1.5A • Wide Input Supply Voltage Operating Range: - 4.
PAGE 2
TC4426A/TC4427A/TC4428A Functional Block Diagram VDD Inverting 500 A 300 mV Output Non-Inverting Input Effective Input C = 12 pF (Each Input) GND 4.7V TC4426A/TC4427A/TC4428A Note 1: TC4426A has two inverting drivers, while the TC4427A has two non-inverting drivers. The TC4428A has one inverting and one non-inverting driver. 2: Ground any unused driver input. DS20001423H-page 2  2002-2013 Microchip Technology Inc.
PAGE 3
TC4426A/TC4427A/TC4428A 1.0 ELECTRICAL CHARACTERISTICS † 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. Absolute Maximum Ratings† Supply Voltage .............
PAGE 4
TC4426A/TC4427A/TC4428A DC CHARACTERISTICS (CONTINUED) Electrical Specifications: Unless otherwise noted, over operating temperature range with 4.5V  VDD  18V. Parameters Sym Min Typ Max Units tD2 — 30 35 ns — 33 40 0°C  TA  +70°C — 35 45 -40°C  TA  +85°C — 38 50 -40°C  TA  +125°C, Figure 4-1 Delay Time Conditions TA = +25°C Power Supply Power Supply Current Note 1: 2: IS — 1.0 2.0 — 0.1 0.
PAGE 5
TC4426A/TC4427A/TC4428A 2.0 TYPICAL PERFORMANCE CURVES 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.
PAGE 6
TC4426A/TC4427A/TC4428A Note: Unless otherwise indicated, over operating temperature range with 4.5V  VDD  18V. 30 30 TA = +125°C 20 25 RDS(ON) (Ω) RDS(ON) (Ω) 25 TA = +25°C 15 10 15 TA = +25°C 10 5 5 0 0 5 FIGURE 2-7: Resistance. 60 10 VDD (V) 15 20 FIGURE 2-10: Resistance.
PAGE 7
TC4426A/TC4427A/TC4428A Note: Unless otherwise indicated, over operating temperature range with 4.5V  VDD  18V. 40 40 VDD = 6V CL = 2200 pF 30 CL = 1500 pF 25 CL = 1000 pF 20 15 CL = 100 pF 10 VDD = 6V 35 ISUPPLY (mA) ISUPPLY (mA) 35 5 0 2 MHz 30 25 20 900 kHz 15 600 kHz 10 200 kHz 20 kHz 5 0 0 500 1000 1500 2000 0 2500 500 FREQUENCY (kHz) FIGURE 2-15: Capacitive Load. Supply Current vs.
PAGE 8
TC4426A/TC4427A/TC4428A 3.0 PIN DESCRIPTIONS The descriptions of the pins are listed in Table 3-1. TABLE 3-1: PIN FUNCTION TABLE (Note 1) Symbol Description PDIP, MSOP, SOIC 6x5 DFN-S 1 1 NC 2 2 IN A Input A 3 3 GND Ground 4 4 IN B Input B 5 5 OUT B 6 6 VDD 7 7 OUT A 8 8 NC No connection 9 EP Exposed Metal Pad — Note 1: 3.1 Inputs A and B (IN A, IN B) Output A 3.4 Supply Input (VDD) The VDD input is the bias supply for the MOSFET driver and is rated for 4.
PAGE 9
TC4426A/TC4427A/TC4428A 4.0 APPLICATIONS INFORMATION +5V 90% Input VDD = 18V 0V 4.7 µF 0.1 µF Input tD1 7 VDD tR 90% 90% Output 5 10% 10% 0V Inverting Driver (TC4426A, ½ TC4428A) CL = 1000 pF 4 tD2 tF Output 6 2 10% +5V 90% Input 3 Input: 100 kHz, square wave, tRISE = tFALL  10 ns 0V VDD 10% tD190% tR Output 0V tD2 10% 90% tF 10% Non-Inverting Driver (TC4426A, ½ TC4428A) FIGURE 4-1: Switching Time Test Circuit.  2002-2013 Microchip Technology Inc.
PAGE 10
TC4426A/TC4427A/TC4428A 5.0 PACKAGING INFORMATION 5.1 Package Marking Information 8-Lead DFN-S (6x5x0.9 mm) NNN PIN 1 Example TC4426A EMF e ^^3 1330 256 PIN 1 8-Lead MSOP (3x3 mm) Example 4426AE 330256 8-Lead PDIP (300 mil) XXXXXXXX XXXXXNNN YYWW 8-Lead SOIC (3.90 mm) NNN Legend: XX...
PAGE 11
TC4426A/TC4427A/TC4428A $ ! "# 3 & ' !& " & + && 244*** ' '4 # * !( + ! ! & + % & & # & e D L b N N K E2 E EXPOSED PAD NOTE 1 1 2 2 NOTE 1 1 D2 BOTTOM VIEW TOP VIEW A A3 A1 NOTE 2 5 &! ' ! 6 ' &! 7"') % ! 66 - - 7 7 ; & 9 : & 8 78 0 1 : :/ & # %% / 1 & & +
PAGE 12
TC4426A/TC4427A/TC4428A $ 3 & ' !& " & + && 244*** ' '4 DS20001423H-page 12 # * !( + ! ! & + % & & # &  2002-2013 Microchip Technology Inc.
PAGE 13
TC4426A/TC4427A/TC4428A 8$ 1RWH For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging  2002-2013 Microchip Technology Inc.
PAGE 14
TC4426A/TC4427A/TC4428A UA Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging DS20001423H-page 14  2002-2013 Microchip Technology Inc.
PAGE 15
TC4426A/TC4427A/TC4428A 8-Lead Plastic Micro Small Outline Package (UA) [MSOP] Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging  2002-2013 Microchip Technology Inc.
PAGE 16
TC4426A/TC4427A/TC4428A $ %& & ' ()) ! % # 3 & ' !& " & + && 244*** ' '4 # * !( + ! ! & + % & & # & N NOTE 1 E1 1 3 2 D E A2 A L A1 c e eB b1 b 5 &! ' ! 6 ' &! 7"') % ! 71;- 7 7 78 9 : & 0 1 & & > > / , / / > > " # & " # < #& - , , / # # + - / :
PAGE 17
TC4426A/TC4427A/TC4428A Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging  2002-2013 Microchip Technology Inc.
PAGE 18
TC4426A/TC4427A/TC4428A Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging DS20001423H-page 18  2002-2013 Microchip Technology Inc.
PAGE 19
TC4426A/TC4427A/TC4428A $ " * & *' ++ , (-.) !"*%/# 3 & ' !& " & + && 244*** ' '4  2002-2013 Microchip Technology Inc.
PAGE 20
TC4426A/TC4427A/TC4428A NOTES: DS20001423H-page 20  2002-2013 Microchip Technology Inc.
PAGE 21
TC4426A/TC4427A/TC4428A APPENDIX A: REVISION HISTORY Revision H (September 2013) The following is the list of modifications: 1. 2. 3. Changed ESD protection value to 2 kV on the Features page. Updated the package specification drawings in Section 5.0, Packaging Information, to show all views available. Minor typographical corrections.  2002-2013 Microchip Technology Inc.
PAGE 22
TC4426A/TC4427A/TC4428A NOTES: DS20001423H-page 22  2002-2013 Microchip Technology Inc.
PAGE 23
TC4426A/TC4427A/TC4428A PRODUCT IDENTIFICATION SYSTEM To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office. PART NO. Device X Temperature Range XX XXX X Package Tape & Reel PB Free Examples: a) TC4426ACOA: b) TC4426AEOA: Device: Temperature Range: Package: TC4426A: 1.5A Dual MOSFET Driver, Inverting TC4427A: 1.5A Dual MOSFET Driver, Non-Inverting TC4428A: 1.
PAGE 24
TC4426A/TC4427A/TC4428A NOTES: DS20001423H-page 24  2002-2013 Microchip Technology Inc.
PAGE 25
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 the most secure families of its kind on the market today, when used in the intended manner and under normal conditions. • There are dishonest and possibly illegal methods used to breach the code protection feature.
PAGE 26
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