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AAT1343

Features: Complete PWM Power Control Circuitry Precision Reference:2.5V ± 1% (25 )Under-Voltage Lockout (UVLO) ProtectionOpen Drain OutputOutput Short Circuit ProtectionLow Dissipation Current:1.6mA Dead-Time Control:0 % to 100%Wide Operating Frequency: 10kHz to 800kHzVDD Range:4.0V to 14.0VPinout...

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SeekIC No. : 004261057 Detail

AAT1343: Features: Complete PWM Power Control Circuitry Precision Reference:2.5V ± 1% (25 )Under-Voltage Lockout (UVLO) ProtectionOpen Drain OutputOutput Short Circuit ProtectionLow Dissipation Current:1.6mA...

AAT1343 Data Sheet

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Part Number:
AAT1343
Supply Ability:
5000

Price Break

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

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Product Details

Description



Features:

Complete PWM Power Control Circuitry
Precision Reference:2.5V ± 1% (25 )
Under-Voltage Lockout (UVLO) Protection
Open Drain Output
Output Short Circuit Protection
Low Dissipation Current:1.6mA
Dead-Time Control:0 % to 100%
Wide Operating Frequency: 10kHz to 800kHz
VDD Range:4.0V to 14.0V




Pinout

Connection Diagram




Specifications

CHARACTERISTICS
SYMBOL
VALUE
UNIT
Supply Voltage
VDD
14.0
V
Input Voltage ( IE − , DTC)
VI
VDD
V
Output Voltage
VO
VDD + 0.3
V
Output Current
IO
120
mA
Operating Free-Air Temperature Range
TC
− 20 to + 85
Storage Temperature Range
Tstorage
− 45 to + 125
Power Dissipation
Pd
500
mW





Description

The AAT1343 provides an integrated two-channel pulse-width-modulation (PWM) solution for the power supply of DC-DC system; this device offers the systems engineer flexibility to tailor-make the power supply circuitry for specific applications.

Each channel contains its own error amplifier, PWM comparator, deadtime control (DTC) and output driver. The under-voltage protection, oscillator, short circuit protection and voltage reference circuit are the common features for these two channels.

Both channels of AAT1343 can be used for DC-DC converter operations including step-up, step-down, and inverting. Dead-time control can be set to provide 0% to 100% dead-time through a resistive divider network. Soft-start can be implemented by paralleling the DTC resistor with a capacitor. Two dead-time control inputs are assigned for channel 1 (CH1) and channel 2 (CH2) individually, and dead-time control inputs can be used to control on / off operation.

With a minimal number of external components, the AAT1343 offers a simple and cost effective solution.






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