Intersil ISL78229ARZ-T

Step-UpУвеличить5 В ~ 55 В

Overview

The ISL78229ARZ-T is an automotive grade (AEC-Q100 Grade 1), 2-phase 55V synchronous boost controller that simplifies the design of high power boost applications. It integrates strong half-bridge drivers, an analog/digital tracking input, comprehensive protection functions, and a PMBus interface for added control and telemetry.The ISL78229ARZ-T enables a simple, modular design for systems requiring power and thermal scalability. It offers peak-current mode control for fast line response and simple compensation. Its synchronous 2-phase architecture enables it to support higher current while reducing the size of input and output capacitors. The integrated drivers feature programmable adaptive dead time control offering flexibility in power stage design. The ISL78229ARZ-T offers a 90° output clock and supports 1-, 2-, and 4-phases.The ISL78229ARZ-T offers a highly robust solution for the most demanding environments. Its unique soft-start control prevents large negative current even in extreme cases, such as a restart under high output prebias on high volume capacitances. It also offers two levels of cycle-by-cycle OCP, average current limiting, input OVP, output UVP/OVP, and internal OTP. A thermistor input is provided for external OTP for the power-stage elements. In the event of a fault, the ISL78229ARZ-T offers individually programmable latch-off or hiccup recovery for each fault type. Also integrated are several functions that ease system design. A unique tracking input controls the output voltage, allowing it to track either a digital duty cycle (PWM) signal or an analog reference. The ISL78229ARZ-T provides input average current limiting so the system can deliver transient bursts of high load current while limiting the average current to avoid overheating. The ISL78229ARZ-T PMBus interface provides fault reporting, telemetry, and system control to support functional safety qualification.

Features

Tape & Reel (TR) Package
Transistor Driver Outputs
Switching Frequency: 50kHz~1.1MHz
Enable, Frequency Control, Phase Control, Power Good, Soft Start, Tracking
PULSE WIDTH MODULATION

Surface Mount Mounting Type

Applications

There are a lot of Renesas Electronics America Inc.
ISL78229ARZ-T DC to DC converter applications.

• Computer application technology
• Network technology
• Automation technology
• CMM
• Various precision measuring instruments
• Various precision measuring detectors
• Flaw detection equipment
• Balance equipment
• Industrial robots
• Industrial controllers