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TC1428

更新时间： 2024-11-17 22:49:55
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TELCOM 驱动器
页数 文件大小 规格书
6页 83K
描述
1.2A DUAL HIGH-SPEED MOSFET DRIVERS

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TC1428 数据手册

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4
TC1426  
TC1427  
TC1428  
1.2A DUAL HIGH-SPEED MOSFET DRIVERS  
FEATURES  
GENERAL DESCRIPTION  
■ Low Cost  
TheTC1426/27/28areafamilyof1.2Adualhigh-speed  
drivers. CMOS fabrication is used for low power consump-  
tion and high efficiency.  
These devices are fabricated using an epitaxial layer to  
effectively short out the intrinsic parasitic transistor respon-  
sibleforCMOSlatch-up.Theyincorporateanumberofother  
design and process refinements to increase their long-term  
reliability.  
The TC1426 is compatible with the bipolar DS0026, but  
only draws 1/5 of the quiescent current. The TC1426/27/28  
are also compatible with the TC426/27/28, but with 1.2A  
peak output current rather than the 1.5A of the TC426/27/28  
devices.  
Other compatible drivers are the TC4426/27/28 and the  
TC4426A/27A/28A. The TC4426/27/28 have the added  
feature that the inputs can withstand negative voltage up to  
5V with diode protection circuits. The TC4426A/27A/28A  
have matched input to output leading edge and falling edge  
delays, tD1 and tD2, for processing short duration pulses in  
the 25 nanoseconds range. All of the above drivers are pin  
compatible.  
■ Latch-UpProtected: WillWithstand500mAReverse  
Output Current  
■ ESD Protected ...................................................±2 kV  
■ High Peak Output Current........................ 1.2A Peak  
■ High Capacitive Load Drive  
Capability...................................... 1000pF in 38nsec  
■ Wide Operating Range ...........................4.5V to 16V  
■ Low Delay Time...................................... 75nsec Max  
■ Logic Input Threshold Independent of  
Supply Voltage  
■ Output Voltage Swing to Within 25mV of  
Ground or VDD  
■ Low Output Impedance ........................................ 8Ω  
APPLICATIONS  
■ Power MOSFET Drivers  
■ Switched Mode Power Supplies  
■ Pulse Transformer Drive  
■ Small Motor Controls  
■ Print Head Drive  
The high-input impedance TC1426/27/28 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  
achievelow-costandhigh-performancedevices,well-suited  
for the high-volume manufacturer.  
PIN CONFIGURATIONS  
1
2
3
4
8
7
6
5
1
2
3
4
NC  
8
7
6
5
1
2
3
4
NC  
8
7
6
5
NC  
IN A  
GND  
NC  
NC  
IN A  
GND  
NC  
IN A  
GND  
OUT A  
OUT A  
OUT A  
TC1426CPA  
TC1427CPA  
TC1428CPA  
V
V
V
DD  
DD  
DD  
IN B  
OUT B  
IN B  
OUT B IN B  
OUT B  
2, 4  
7, 5  
2, 4  
7, 5  
2
4
7
5
NON-INVERTING  
INVERTING  
NC = NO CONNECTION  
1
2
3
4
8
7
6
5
1
2
3
4
NC  
8
7
6
5
1
2
3
4
NC  
NC  
8
7
6
5
NC  
IN A  
GND  
NC  
NC  
IN A  
GND  
ORDERING INFORMATION  
OUT A  
OUT A  
IN A  
OUT A  
TC1426COA  
TC1427COA  
7, 5  
TC1428COA  
V
V
V
DD  
GND  
DD  
DD  
Part No.  
Package  
Temp. Range  
IN B  
OUT B  
IN B  
OUT B IN B  
OUT B  
2, 4  
2, 4  
INVERTING  
NC = NO CONNECTION  
7, 5  
2
7
5
TC1426COA  
TC1426CPA  
8-Pin SOIC  
0°C to +70°C  
0°C to +70°C  
NON-INVERTING  
4
8-Pin Plastic DIP  
TC1427COA  
TC1427CPA  
8-Pin SOIC  
0°C to +70°C  
0°C to +70°C  
FUNCTIONAL BLOCK DIAGRAM  
8-Pin Plastic DIP  
+
V
TC1428COA  
TC1428CPA  
8-Pin SOIC  
0°C to +70°C  
0°C to +70°C  
500µA  
TC1426 INVERTING  
TC1427 NONINVERTING  
TC1428 INVERTING/NONINVERTING  
Ϸ
8-Pin Plastic DIP  
2.5mA  
Ϸ
NONINVERTING  
OUTPUT  
INVERTING  
OUTPUT  
(TC1427)  
(TC1426)  
INPUT  
NOTE:TC1428 has one inverting and one noninverting driver.  
Ground any unused driver input.  
GND  
TC1426/7/8-8 10/11/96  
TELCOM SEMICONDUCTOR, INC.  
4-207  
123456

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