TC4432VPA

Logic Voltage - VIL, VIH:	0.8V, 2.4V
Base Part Number:	TC4432
Supplier Device Package:	8-PDIP
Package / Case:	8-DIP (0.300", 7.62mm)
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 150°C (TJ)
Rise / Fall Time (Typ):	25ns, 33ns
Input Type:	Non-Inverting
Current - Peak Output (Source, Sink):	1.5A, 1.5A
Series:	--
Voltage - Supply:	4.5 V ~ 30 V
Gate Type:	N-Channel, P-Channel MOSFET
Number of Drivers:	1
Channel Type:	Single
Driven Configuration:	High-Side or Low-Side
Part Status:	Active
Packaging:	Tube

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Introduction

TC4432VPA is a high performance gate driver integrated circuit (IC). It is designed to drive Power Factor Correction (PFC) MOSFETs and IGBTs. It is from the PMIC - Gate Drivers category. It has an exceptionally low quiescent current and supports high efficiency operation, low system cost and small board area.

Features

The TC4432VPA provides a wide range of features for easy and cost-effective operation. The features include:

• Operating temperature range from -40°C to 125°C
• On-chip protection from false triggering and miswiring
• Integrated short-circuit protection
• Under voltage and over voltage protection
• Enhanced Built-in-Test (BIT) feature, which is a low cost method to perform system test during production
• Integrated soft start circuitry
• Low quiescent current (less than 7 mA), enabling low system standby power
• Compatible with high-side and low-side switches
• On-chip thermal condition monitoring and protection
• Integrated fault delay circuitry

Applications

The TC4432VPA is suitable for a variety of applications, including:

• Low power lighting and LED lighting
• Battery management system for Lithium-ion or other batteries
• Power factor correction
• Solar inverter
• DC-DC converters
• High power factor AC-DC converters
• AC-DC UPS systems

Working Principle

The TC4432VPA has an integrated high side and low side N-channel power transistor. They are driven by a fast turn-on and turn-off driver. The driver generates a gate voltage of up to 10 V to switch on the power transistor. The driver also contains an integrated logic control feature with double pulse width modulation (PWM). This enables the device to switch on and off both the high side and low side power transistors at the same frequency and duty cycle for constant power control.The TC4432VPA also features an integrated fault delay circuit. When an overcurrent or overvoltage fault is detected, the device will delay the gate voltage from turning on for a specific amount of time. This can provide an extra safety margin in applications where the circuit needs to be protected from high inrush currents.The TC4432VPA also features an integrated on-chip thermal protection. This feature monitors the junction temperature of the device and will shut down the driver if the temperature reaches a certain threshold. This ensures the device is protected against thermal overload and also prevents any wrong operation due to improper external heatsinking.

Conclusion

The TC4432VPA is a high performance gate driver integrated circuit. It is designed to drive Power Factor Correction (PFC) MOSFETs and IGBTs. It has an exceptionally low quiescent current and supports high efficiency operation, low system cost, and small board area. It is suitable for a variety of applications, including low power lighting and LED lighting, battery management system for Lithium-ion or other batteries, and AC-DC UPS systems. It features an integrated high side and low side N-channel power transistor, a fast turn-on and turn-off driver, and an integrated logic control. It also contains an integrated fault delay circuit and thermal protection, providing extra safety and reliability.

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