Power management IC - iML1942

  • Power management IC
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8.6V to 14.7V Input Supply Voltage Range for TV
4.3V to 6V Input Supply Voltage Range for MNT
Fully I2C Interface Control
1-bit Selectable Switching Frequency for AVDD,VBK1, VGH, VGL (500kHz/750kHz)

  • Model Number: iML1942
  • Data Sheet: Date Sheet File
Quantity:
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Product Specification

The iML1942 is a highly integrated power management IC for TFT LCD panels. It features fully I2C interface to program various parameters.

The device consists of one current mode boost regulator for AVDD, one synchronous buck converter for VBK1. An optional inverting converter or negative charge pump regulator for VGL with temperature-compensated output, a negative linear regulator for VSS1, an optional boost regulator or charge pump regulator for VGH with temperature-compensated output, a programmable amplifier for VCOM1, a programmable DAC for VOCM2 and 14-channel programmable Gamma amplifiers.
The iML1942 device includes various protection features such as input under-voltage lockout (UVLO) and over temperature shutdown (OTP). The outputs include under voltage protection (UVP), and short circuit protection (SCP).

The iML1942 is available in a WQFN 46 pin 6.5 mm X 4.5 mm with a bottom side exposed thermal pad to provide optimal heat dissipation. The device is rated to operate from –40 to +85°C temperature range.

FEATURES:
8.6V to 14.7V Input Supply Voltage Range for TV
4.3V to 6V Input Supply Voltage Range for MNT
Fully I2C Interface Control
1-bit Selectable Switching Frequency for AVDD,VBK1, VGH, VGL (500kHz/750kHz)
Optional Internal or External MOSFET Drive Boost Regulator for AVDD
◆ 13.5V to 19.8V Output Voltage Range
Synchronous Buck Regulator for VBK1
◆ 1.8V to 3.35V Output Voltage Range
High-Current Programmable Amplifier for HAVDD
◆ 7-Bit Resolution
◆ ±200mA Output Short-Circuit Current
Optional Inverting Regulator Converter or Charge Pump Regulator for VGL
◆ –3V to –18V Output Voltage Range
◆ Temperature-compensated Output
The Negative Linear Regulator for VSS1
◆ –3V to –16V Output Voltage Range
◆ Sourcing and Sinking Capacity
Optional Boost Regulator or Change Pump Regulator for VGH
◆ 20V to 45V Output Voltage
◆ Temperature-compensated Output
1-Channel Programmable Amplifier for VCOM1
◆ 7 Bit Resolution
◆ ±400mA Short-Circuit Current
1-Channel Programmable VCOM2 DAC
◆ 7 Bit Resolution
14-Channel Programmable Gamma Amplifiers
◆ 10 Bit Resolution
◆ ±100mA Short-Circuit Current
Protection
◆ UVP, SCP, OTP

Slave Address: 

◆ 0100 000 R/W (PMIC)

◆ 1110 100 R/W (VCOM1)
WQFN 6.5x4.5-46 Package
WQFN 6x6-48L Package



APPLICATIONS:

Monitor Panel
TV Panel

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