ISL78022中文资料Automotive Grade TFT-LCD DC/DC with Integrated Amplifiers数据手册Renesas规格书

描述 Description

Support is limited to customers who have already adopted these products.

The ISL78020 and ISL78022 integrate a high performance boost regulator with 2 LDO controllers for VON and VOFF, a VON-slice circuit with adjustable delay and either one (ISL78020) or five (ISL78022) amplifiers for VCOM and VGAMMA applications. The boost converter in the ISL78020 and ISL78022 is a current mode PWM type integrating an 18V N-Channel MOSFET. Operating at 1. 2MHz, this boost converter can operate in either P-Mode for superior transient response, or in PI-Mode for tighter output regulation. Using external low-cost transistors, the LDO controllers provide tight regulation for VON, VOFF, as well as providing start-up sequence control and fault protection. The amplifiers are ideal for VCOM and VGAMMA applications, with 150mA peak output current drive, 12MHz bandwidth, and 12V/µs slew rate. All inputs and outputs are rail-to-rail. Available in a 32 Ld TQFP (7mmx7mm) Pb-free package, the ISL78020, ISL78022 are specified for operation over a -40°C to +105°C temperature range.

特性 Features

• Current mode boost regulator
• Fast transient response
• 1% accurate output voltage
• 18V/3A integrated FET
• >90% efficiency
• 2.6V to 5.5V VIN supply
• 2 LDO controllers for VON and VOFF
• 2% output regulation
• VON-slice circuit
• High speed amplifiers
• 150mA short-circuit output current
• 12V/µs slew rate
• 12MHz -3dB bandwidth
• Rail-to-rail inputs and outputs
• Built-in power sequencing
• Internal soft-start
• Multiple overload protection
• Thermal shutdown
• 32 Ld 7x7 TQFP package
• Pb-free (RoHS compliant)

应用 Application

• All automotive TFT-LCD panels