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AAT1118

Features: · Built in 1.6A, 0.2 Switching NMOS· Fault and Thermal Protection· Internal Soft-Start Function· Internal Power Up Sequencing· Dual Adjustable Charge Pump Output Positive Output to 40V Negative Output to 40V -· Power Good Output·TSSOP-16 PackagePinoutSpecifications PARAMETER SYM...

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SeekIC No. : 004261007 Detail

AAT1118: Features: · Built in 1.6A, 0.2 Switching NMOS· Fault and Thermal Protection· Internal Soft-Start Function· Internal Power Up Sequencing· Dual Adjustable Charge Pump Output Positive Output to 40V Ne...

AAT1118 Data Sheet

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Part Number:
AAT1118
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/11/21

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Product Details

Description



Features:

· Built in 1.6A, 0.2 Switching NMOS
· Fault and Thermal Protection
· Internal Soft-Start Function
· Internal Power Up Sequencing
· Dual Adjustable Charge Pump Output Positive Output to 40V Negative Output to 40V -
· Power Good Output
·TSSOP-16 Package




Pinout

Connection Diagram




Specifications

PARAMETER
SYMBOL
VALUE
UNIT
VDD to GND
VDD
7
V
SW to GND
VSW
18
V
VDD1 , VDD2 to GND
VDDH
16
V
Input Voltage 1 (IN1, IN2, IN3, SHDN)
VI1
VDD +0.3
V
Output Voltage 1 (EO, REF V )
VO1
VDD +0.3
Output Voltage 2 (OUT2, OUT3, SW, PGO)
VO2
VDDH +0.3
V
Operating Free-Air Temperature Range
CT
-40 to+ 85
°C
Storage Temperature Range
storage T
-45 to +125
°C
Power Dissipation
Pd
750
mW





Description

The AAT1118/A/B is an adjustable triple-channel TFT LCD DC-DC converter that provides one current mode PWM, one positive charge pump and one negative charge pump. Built-in functions include soft-start and power up sequencing. When power is turned on, soft-start avoids inrush current. Power up sequencing feature provides compensation for LCD panel to maintain a smooth voltage during a turn-on cycle

The DC-DC converter AAT1118 consists of an on-chip voltage reference, error amplifier, current sense, pulse width modulation controller, under-voltage lockout protection, thermal detect, soft-start, and fault protection circuit.

When the two charge pumps are in operation, the output voltage would be doubled and the generated VP3 and VP2 (Note 1) could switch on or off TFT gate.

With the minimal external components, the AAT1118/A/B offers a simple and economical solution for TFT LCD power.






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