The TC4427EPA is a high-performance MOSFET driver that offers exceptional speed and efficiency for demanding applications. With its wide voltage range and high peak output current, this driver is ideal for power electronics and motor control systems that require rapid switching and minimal shoot-through current. The under-voltage lockout protection ensures reliable operation even in low voltage conditions, giving users peace of mind in critical situations.
Microchip TC4427EPA's Features
The Microchip TC4427EPA features numerous outstanding characteristics. It has a peak output current of up to 1.5 A, providing a powerful driving capability and easily meeting the high - current - drive requirements of various power devices. Regarding the power supply voltage, its operating range is from - 4.5 V to 18 V. This wide voltage range allows it to be adapted to a variety of circuit systems with different voltage levels, making its application scenarios extremely extensive. Its capacitive load driving capability is particularly remarkable. It can drive a 1000 pF capacitor in just 25 ns. This characteristic enables extremely rapid switching actions of power devices.
Moreover, it has a short delay time, with a typical value of only 40 ns, and the rise and fall times are well - matched. This ensures the timeliness and accuracy of signal transmission, thereby effectively increasing the switching speed of power devices and reducing switching losses. In addition, this chip also has the characteristic of low supply current, only 4 mA when the logic '1' is input and as low as 400 µA when the logic '0' is input, which greatly reduces its own power consumption and improves energy - use efficiency.
Microchip TC4427EPA's Applications
The Microchip TC4427EPA has a wide range of applications in multiple fields. In switching mode power supplies, relying on its powerful driving capability and fast switching speed, it precisely controls the turn-on and turn-off of power devices, effectively improving the power conversion efficiency and ensuring a stable voltage output. It is widely used in the power modules of electronic devices.
It is also indispensable in motor drive systems. It can provide large transient currents and quickly respond to motor control signals, enabling efficient starting, smooth operation, and precise speed regulation of motors. It is commonly found in the motor drive units of industrial automation equipment.
In terms of signal amplification and transmission, the TC4427EPA can be used as a line driver. By taking advantage of its low delay and excellent signal transmission characteristics, it ensures the integrity and stability of signals during long-distance transmission or in complex electromagnetic environments. It is applied in the signal processing circuits of communication devices.
In addition, in the driving of pulse transformers, it can match the input requirements of transformers and generate appropriate pulse drive signals, which are used for energy conversion and transmission in power electronic devices.
Microchip TC4427EPA's Attributes
| Package |
Tube |
Product Status |
Active |
| Programmabe |
Not Verified |
Driven Configuration |
Low-Side |
| Channel Type |
Independent |
Number of Drivers |
2 |
| Gate Type |
N-Channel, P-Channel MOSFET |
Voltage - Supply |
4.5V ~ 18V |
| Logic Voltage - VIL, VIH |
0.8V, 2.4V |
Current - Peak Output (Source, Sink) |
1.5A, 1.5A |
| Input Type |
Non-Inverting |
Rise / Fall Time (Typ) |
19ns, 19ns |
| Operating Temperature |
-40°C ~ 85°C (TA) |
Mounting Type |
Through Hole |
| Package / Case |
8-DIP (0.300", 7.62mm) |
Supplier Device Package |
8-PDIP |
| Base Product Number |
TC4427 |
Microchip TC4427EPA's Category - Gate Drivers ICs
Microchip's TC4427EPA belongs to the Category of Gate Drivers ICs, playing a pivotal role in power - electronics systems. As a gate driver, its fundamental function is to serve as a buffer between low - voltage controllers and high - voltage circuits.
It first and foremost takes the low - voltage signals from controllers and amplifies them into high - voltage drive signals. For instance, when interfacing with a microcontroller's low - voltage output, the TC4427EPA boosts the voltage to a level sufficient to ensure stable turn - on and turn - off of power devices like MOSFETs or IGBTs. This conversion is crucial for the proper operation of power - conversion circuits.
In terms of current - handling capabilities, the TC4427EPA can source and sink significant transient currents. By providing these rapid bursts of current, it substantially enhances the switching speed of power devices. Faster switching not only reduces switching losses but also enables more efficient power transfer in applications such as switch - mode power supplies.
Noise isolation is another key aspect. In high - power circuits, noise can be a major issue that may interfere with sensitive control circuits. The TC4427EPA effectively shields the low - voltage control circuitry from the high - power circuit's noise, maintaining the integrity of the control signals.
Moreover, this gate driver comes integrated with protection features. It monitors various parameters and takes action to prevent power - device damage. For example, it can detect over - current or over - voltage conditions and promptly shut down the power device, safeguarding it from potential harm. All these functions combined make the TC4427EPA an essential component in ensuring power devices operate optimally within a system.
TC4426EPA vs TC4427EPA
| |
 |
 |
| Part Number |
TC4426EPA +BOM |
TC4427EPA +BOM |
| Manufacturer |
Microchip |
Microchip Technology, Inc |
| Package |
PDIP-8 |
PDIP-8 |
| Description |
MOSFET Driver with 1.5A Output Current and 2 Outputs |
Low-Side Gate Driver IC Non-Inverting 8-PDIP |
| Stock |
1788 |
2082 |
| RoHS |
True |
True |
| Product |
MOSFET Gate Drivers |
MOSFET Gate Drivers |
| Manufacturer Type |
Low-Side |
Low-Side |
| Mounting Style |
Through Hole |
Through Hole |
| Number of Drivers |
2 Driver |
2 Driver |
| Number of Outputs |
2 Output |
2 Output |
| MAX Output Current |
1.5 A |
1.5 A |
| Supply Voltage - Min |
4.5 V |
4.5 V |
| Max Supply Voltage |
18 V |
18 V |
| Configuration |
Inverting |
Non-Inverting |
| Rise Time |
25 ns |
25 ns |
| Fall Time |
25 ns |
25 ns |
| Minimum Operating Temperature (°C) |
- 40 |
- 40 |
| Maximum Operating Temperature (°C) |
+ 85 |
+ 85 |
| Series |
TC4426 |
TC4427 |
| Logic Type |
CMOS, TTL |
CMOS, TTL |
| Current @ Pmpp |
4.5 mA |
4.5 mA |
| Collector-Emitter Saturation Voltage |
4.5 V to 18 V |
4.5 V to 18 V |
| Pd - Power Dissipation |
730 mW |
730 mW |
| Product Type |
Gate Drivers |
Gate Drivers |
| Factory Pack Quantity |
60 |
60 |
| Technology |
Si |
Si |
| Unit Weight |
0.032805 oz |
0.032805 oz |
| Moisture Sensitive |
Yes |
Yes |
| +BOM |
Yes |
Yes |
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