TC428

Features:

• High-Speed Switching (C_L = 1000pF): 30nsec
• High Peak Output Current: 1.5A
• High Output Voltage Swing
- V_DD -25mV
- GND +25mV
• Low Input Current (Logic "0" or "1"): 1µA
• TTL/CMOS Input Compatible
• Available in Inverting and Noninverting Configurations
• Wide Operating Supply Voltage
- 4.5V to 18V
• Current Consumption
- Inputs Low 0.4mA
- Inputs High 8mA
• Single Supply Operation
• Low Output Impedance: 6Ω
• Pinout Equivalent of DS0026 and MMH0026
• Latch-Up Resistant: Withstands > 500mA Reverse Current
• ESD Protected: 2kV




Application

• Switch Mode Power Supplies
• Pulse Transformer Drive
• Clock Line Driver
• Coax Cable Driver




Pinout

Specifications

Parameter NameValuePowerDual Peak Output Current (mA)1500Output Resistance (RH/RL)(Max. @ 25°C)15/10Max. Supply Voltage (V)18Input/Output Delay (td1, td2)1 (ns)50/75DescriptionLow-Side MOSFET Drivers, 1.5A Peak Output CurrentOperating Temp. Range (°C)-40 to 85

Parameter Name	Value
Power	Dual
Peak Output Current (mA)	1500
Output Resistance (RH/RL)(Max. @ 25°C)	15/10
Max. Supply Voltage (V)	18
Input/Output Delay (td1, td2)1 (ns)	50/75
Description	Low-Side MOSFET Drivers, 1.5A Peak Output Current
Operating Temp. Range (°C)	-40 to 85

Supply Voltage.............................................................. +20V
Input Voltage, Any Terminal......... V_DD + 0.3V to GND 0.3V
Power Dissipation (T_A 70)
PDIP .................................................................. 730mW
CERDIP............................................................... 800mW
SOIC................................................................... 470mW
Derating Factor
PDIP ................................................................... 8mW/
CERDIP............................................................. 6.4mW/
SOIC.................................................................... 4mW/
Operating Temperature Range
C Version.......................................................0 to +70
I Version.................................................... -25 to +85
E Version .................................................. -40 to +85
M Version................................................. -55 to +125
Storage Temperature Range ........................... -65to +150

*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.

Description

The TC426/TC427/TC428 are dual CMOS high-speed drivers. A TTL/CMOS input voltage level is translated into a rail-to-rail output voltage level swing. The CMOS output is within 25mV of ground or positive supply. The low impedance, high-current driver outputs swing a 1000pF load 18V in 30nsec. The unique current and voltage drive qualities make the TC426/TC427/TC428 ideal power MOSFET drivers, line drivers, and DC-to-DC converter building blocks. Input logic signals may equal the power supply voltage. Input current is a low 1A, making direct interface to CMOS/bipolar switch-mode power supply control ICs possible, as well as open-collector analog comparators. Quiescent power supply current is 8mA maximum. The TC426 requires 1/5 the current of the pin-compatible bipolar DS0026 device. This is important in DC-to-DC converter applications with power efficiency constraints and high-frequency switch-mode power supply applications. Quiescent current is typically 6mA when driving a 1000pF load 18V at 100kHz. The inverting TC426 driver is pin-compatible with the bipolar DS0026 and MMH0026 devices. The TC427 is noninverting; the TC428 contains an inverting and non-inverting driver. Other pin compatible driver families are the TC1426/27/28, TC4426/27/28, and TC4426A/27A/28A.