ISL97642

TFT-LCD DC/DC with Integrated Amplifiers

Product Status: 量産中(*)

OVERVIEW

The ISL97642 integrates a high performance boost regulator with 2 LDO controllers for VON and VOFF , a VON -slice circuit with adjustable delay and three amplifiers for VCOM and VGAMMA applications.

The boost converter in the ISL97642 is a current mode PWM type integrating an 18V N-Channel MOSFET.

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 the 32 Ld thin QFN (5mmx5mm) Pb-free package, the ISL97642 is specified for operation over the -40°C to +85°C temperature range.

KEY FEATURES

  • Current mode boost regulator
  • Fast transient response
  • 1% accurate output voltage
  • 18V/2.4A 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 5x5 thin QFN package
  • Pb-free plus anneal available (RoHS compliant)

PARAMETRICS

Parameters
ISL97642
Basic Information
Production Status
量産中(*)
入力電圧 (V) (min)
2.6
入力電圧 (V) (max)
5.5
VBOOST (V) (min)
3
VBOOST (V) (max)
18
ブースト電流制限 (A)
2.8
オン電圧 (V) (min)
15
オン電圧 (V) (max)
36
オフ電圧 (V) (min)
-25
オフ電圧 (V) (max)
-5
認定レベル
Standard
ロジック電圧 (V) (min)
N/A
ロジック電圧 (V) (max)
N/A
VCOM
1
ガンマ数
2
VBOOST (V)
3 to 18
入力電圧範囲 (V)
2.6 to 5.5
VLOGIC (V)
N/A
VOFF/VN (V)
-25 to -5
オン電圧範囲 (V)
15 to 36
温度範囲
-40 to +85

ブロック図

下記をご確認ください