ISL78010
Automotive Grade TFT-LCD Power Supply

Key Features

• 2A current FET
• 3V to 5V input
• Up to 20V boost output
• 1% regulation on boost output
• V_LOGIC-V_BOOST-V_OFF- V_ON or V_LOGIC-V_OFF-V_BOOST- V_ON sequence control
• Programmable sequence delay
• Fully fault protected
• Thermal shutdown
• Internal soft-start
• 32 Ld 5x5 TQFP packages
• AEC-Q100 Tested
• TS16949 Compliant
• Pb-free (RoHS compliant)

Description

The ISL78010 is a multiple output regulator for use in all TFT-LCD automotive applications. It features a single boost converter with an integrated 2A FET, two positive LDOs for V_ON and V_LOGIC generation, and a single negative LDO for V_OFF generation. The boost converter can be programmed to operate in either P-mode for optimal transient response or PI-mode for improved load regulation.

The ISL78010 includes fault protection for all four channels. Once a fault is detected on either the V_BOOST, V_ON or V_OFF channels, the device is latched off until the input supply or EN is cycled. If a fault is detected on the V_LOGIC channel, the device is latched off until the input supply is cycled. The V_LOGIC channel is not affected by the EN function.

The ISL78010 also includes an integrated start-up sequence for V_LOGIC, V_BOOST, V_OFF, then V_ON or for V_LOGIC, V_OFF, V_BOOST, and V_ON. The latter sequence requires a single external transistor. The timing of the start-up sequence is set using an external capacitor.

The ISL78010 comes in a 32 Ld 5x5 TQFP package and is specified for operation over a
-40°C to +105°C temperature range. It is both AEC-Q100 rated and fully TS16949 compliant.

Applications

• All Automotive LCD Displays