- 5V to 14V Input Supply
- Integrated 4.4A Boost Converter
- Integrated VON Charge Pump and VON Slice Circuit
- Integrated VOFF Charge Pump Output
- Integrated 2.5A Buck Converter
- LDO Controller for an Additional Logic Supply
- High Voltage Stress (HVS) Test Mode
- Thermal Shutdown
- 40 Ld QFN (6mmx6mm) Package
- Pb-Free (RoHS Compliant)
The ISL97653A represents a fully integrated supply IC for LCD-TV applications. With an input operating range of 4V to 14V, both commonly used LCD-TV input supplies, 5V and 12V, are supported. An AVDD supply up to 20V is generated by a high-performance PWM BOOST converter with an integrated 4.4A FET. VON is generated using an integrated charge pump with on-chip diodes and can be modulated using an on-chip VON slice control circuit. VOFF is generated using an integrated charge pump controller. Additionally, the chip allows for two logic supplies. A buck regulator with an included 2.5A high side switch is used for the main logic output and an internal LDO controller can be used to generate a second logic LDO output.
To facilitate production test, an integrated HVS circuit is included which can provide high voltage stress of the LCD panel.
An on-board temperature sensor is also provided for system thermal management control.
The ISL97653A is packaged in a 40 Ld 6mmx6mm QFN package and is specified for operation over the -40°C to +105°C temperature range.
- Industrial/Medical LCD Displays
|VIN (min) (V)||4||2.3||3||9.5|
|VIN (max) (V)||14||5.5||5.5||15|
|VBOOST (min)||20 V||5.5 V||10.83 V|
|VBOOST (max)||20 V||20 V||19 V|
|Boost Current Limit (A)||4.4||2||5.5|
|VON (min) (V)||15||15|
|VON (max) (V)||30||36||36|
|VOFF (min) (V)||-15||-20||-10|
|VOFF (max) (V)||-5||-5|
|VLOGIC (min) (V)||1.5||1.3||2.5, 0.9|
|VLOGIC (max) (V)||3.3||VDD - 0.2||3.3, 2|
|# of VCOM||N/A||N/A||N/A|
|# of Gamma||N/A||N/A||N/A|
|Features||Integrated VON Charge Pump and VON Slice Circuit, Integrated VOFF Charge Pump Output, LDO Controller||Automatic Start-Up Sequencing, fault protection|