ISL6612ACB

Current - Peak Output (Source, Sink):	1.25A, 2A
Base Part Number:	ISL6612A
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 125°C (TJ)
Rise / Fall Time (Typ):	26ns, 18ns
High Side Voltage - Max (Bootstrap):	36V
Input Type:	Non-Inverting
Series:	--
Logic Voltage - VIL, VIH:	--
Voltage - Supply:	10.8 V ~ 13.2 V
Gate Type:	N-Channel MOSFET
Number of Drivers:	2
Channel Type:	Synchronous
Driven Configuration:	Half-Bridge
Part Status:	Obsolete
Packaging:	Tube

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Introduction

The ISL6612ACB is an integrated gate driver for high-voltage, non-isolated applications. It combines an exciting and a keep-alive gate driver, as well as low and high side switches in one integrated chip. The ISL6612ACB is designed especially to maintain a controlled turn-on sequence of high voltage and low voltage switches to reduce electromagnetic interference (EMI) in a power supply application. This makes it ideal for switching applications that require high-voltage control, such as motor control, DC/DC converters and switched-mode power supplies.

Features

The ISL6612ACB includes several features to make it ideal for high-voltage applications. It incorporates two independent high-voltage and low-voltage gate drivers for simultaneous switching on both the high and low sides in a single device. It also has a integrated low-voltage keeper to maintain the switch’s turn-on state even when the power supply is off. The ISL6612ACB is designed to operate at up to 65V in pulsed mode, and up to 20V in steady-state mode. Its undervoltage lockout (UVLO) feature enables the chip to protect the load against over-current, while its slew-rate control reduces EMI in the power supply circuit.

Operation and Application

The ISL6612ACB operates by controlling the turn-on sequence of the low- and high-side switches. When the chip is powered, it has an initialization sequence during which it checks for valid power levels and determines the voltage level of the pins. It then sends pulses to the high-voltage switch to control its turn-on sequence. During its off-time, the low-voltage keeper keeps the low-side switch in its turn-on state, even when the power supply is off. The ISL6612ACB is widely used in a variety of motor control and DC/DC converter applications. It is useful for controlling large loads that require high-voltage switching, such as motors and solenoids, as well as for providing isolated power supplies in DC/DC converters. As a result, it is ideal for high-voltage switching applications that require low EMI.

Conclusion

The ISL6612ACB is an integrated gate driver designed to control the turn-on sequence of low- and high-voltage switches. Its features make it ideal for high-voltage switching applications, such as motor control and DC/DC converters. Its undervoltage lockout and slew-rate control features reduce EMI in the power supply circuit, making it an ideal choice for applications requiring low EMI. As such, the ISL6612ACB is widely used in motor control and DC/DC converter applications for reducing EMI and maintaining a controlled turn-on sequence.

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