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Numéro de référence | AAT1109 | ||
Description | ONE-CHANNEL STEP-UP PWM CONTROLLER | ||
Fabricant | Advanced Analog Technology | ||
Logo | |||
Advanced Analog Technology, Inc.
Details are subject to change without notice.
AAT1109
ONE-CHANNEL STEP-UP PWM CONTROLLER
FEATURES
www.DataShzeet4UU.cnodmer-Voltage Lockout (UVLO) Protection
z Totem Pole Output
z Output Short Circuit Protection
z Soft-Start Function
z Wide Operating Frequency
10 kHz to 1MHz
z Shutdown Control
z Low Dissipation Current :
Typical 1.6mA in Operation
z SOP-8 & TSSOP-8 Package Available
PIN CONFIGURATION
GENERAL DESCRIPTION
The AAT1109 is a one-channel step-up PWM
controller incorporating a soft-start and a short
circuit protection (SCP) function.
This device consists of an on-chip voltage reference,
error amplifier, pulse width modulation controller,
under-voltage lockout protection, soft-start, and
short circuit protection circuits. Switching
frequency up to 1MHz is set by an external resistor
and capacitor. Soft-start time can be implemented
by the SCP capacitor.
Additionally, a chip-enable feature is also provided
to power down and reduce the current supply
to10µA . With the minimal external components,
the AAT1109 offers a simple and economical
solution.
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– Advanced Analog Technology, Inc. –
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Pages | Pages 18 | ||
Télécharger | [ AAT1109 ] |
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