TC1428COA713【PDF 1/14 页】IC MOSFET DVR 1.2A DUAL HS 8SOIC

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TC1426/TC1427/TC1428

1.2A Dual High-Speed MOSFET Drivers

Features:

? Low Cost

Package Type

8-Pin PDIP/SOIC

? Latch-Up Protected: Will Withstand 500 mA

NC 1

8 NC

NC 1

8 NC

NC 1

8 NC

Reverse Output Current

? ESD Protected ±2kV

IN A 2

GND 3

IN B 4

TC1426CPA

7 OUT A IN A 2

6 V DD GND 3

5 OUT B IN B 4

TC1427CPA

7 OUT A IN A 2

6 V DD GND 3

5 OUT B IN B 4

TC1428CPA

7 OUT A

6 V DD

5 OUT B

? High Peak Output Current: 1.2A

2, 4

7, 5

2, 4

7, 5

? Wide Operating Range:

Inverting

Noninverting

- 4.5V to 16V

? High Capacitive Load Drive Capability: 1000 pF in

NC 1

8 NC

NC 1

8 NC

NC 1

8 NC

38 nsec

IN A 2

GND 3

TC1426COA

7 OUT A

6 V DD

IN A 2

GND 3

TC1427COA

7 OUT A

6 V DD

IN A 2

GND 3

TC1428COA

7 OUT A

6 V DD

? Low Delay Time: 75 nsec Max

IN B 4

5 OUT B IN B 4

5 OUT B

? Logic Input Threshold Independent of Supply

2, 4

7, 5

2, 4

7, 5

Voltage

? Output Voltage Swing to Within 25 mV of Ground

or V DD

Inverting

NC = No connection

Noninverting

? Low Output Impedance: 8 Ω

Applications:

General Description:

The TC1426/TC1427/TC1428 are a family of 1.2A dual

high-speed drivers. CMOS fabrication is used for low-

Power MOSFET Drivers

Switched Mode Power Supplies

Pulse Transformer Drive

Small Motor Controls

Print Head Drive

power consumption and high efficiency.

These devices are fabricated using an epitaxial layer to

effectively short out the intrinsic parasitic transistor

responsible for CMOS latch-up. They incorporate a

number of other design and process refinements to

increase their long-term reliability.

Device Selection Table

The TC1426 is compatible with the bipolar DS0026, but

Part Number

TC1426COA

TC1426CPA

TC1427COA

TC1427CPA

TC1428COA

TC1428CPA

Package

8-Pin SOIC

8-Pin PDIP

8-Pin SOIC

8-Pin PDIP

8-Pin SOIC

8-Pin PDIP

Temp. Range

0°C to +70°C

only draws 1/5 of the quiescent current. The TC1426/

TC1427/TC1428 are also compatible with the TC426/

TC427/TC428, but with 1.2A peak output current rather

than the 1.5A of the TC426/TC427/TC428 devices.

Other compatible drivers are the TC4426/TC4427/

TC4428 and the TC4426A/TC4427A/TC4428A. The

TC4426/TC4427/TC4428 have the added feature that

the inputs can withstand negative voltage up to 5V with

diode protection circuits. The TC4426A/TC4427A/

TC4428A have matched input to output leading edge

and falling edge delays, t D1 and t D2 , for processing

short duration pulses in the 25 nanoseconds range. All

of the above drivers are pin compatible.

The high-input impedance TC1426/TC1427/TC1428

drivers are CMOS/TTL input-compatible, do not require

the speed-up needed by the bipolar devices, and can

be directly driven by most PWM ICs.

This family of devices is available in inverting and non-

inverting versions. Specifications have been optimized

to achieve low-cost and high-performance devices,

well-suited for the high-volume manufacturer.

? 2006 Microchip Technology Inc.

DS21393C-page 1

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