DataSheetWiki


AAT3190 fiches techniques PDF

ANALOGICTECH - Positive/Negative Charge Pump for Voltage Bias

Numéro de référence AAT3190
Description Positive/Negative Charge Pump for Voltage Bias
Fabricant ANALOGICTECH 
Logo ANALOGICTECH 





1 Page

No Preview Available !





AAT3190 fiche technique
AAT3190
Positive/Negative Charge Pump for Voltage Bias
General Description
The AAT3190 charge pump controller provides the
regulated positive and negative voltage biases
required by active matrix thin-film transistor (TFT)
liquid-crystal displays (LCDs), charge-coupled
device (CCD) sensors, and organic light emitting
diodes (OLEDs). Two low-power charge pumps
convert input supply voltages ranging from 2.7V to
5.5V into two independent output voltages.
The dual low-power charge pumps independently
regulate a positive (VPOS) and negative (VNEG) out-
put voltage. These outputs use external diode and
capacitor multiplier stages (as many stages as
required) to regulate output voltages up to ±25V.
Built-in soft-start circuitry prevents excessive in-
rush current during start-up. A high switching fre-
quency enables the use of small external capaci-
tors. The device’s shutdown feature disconnects
the load from VIN and reduces quiescent current to
less than 1.0µA.
The AAT3190 is available in an MSOP-8 or
TSOPJW-12 package and is specified over the
-40°C to +85°C operating temperature range.
Features
ChargePump
• VIN Range: 2.7V to 5.5V
• Adjustable ± Dual Charge Pump
• Positive Supply Output Up to +25V
• Negative Supply Output Down to -25V
• Up to 30mA Output Current
• 1.0MHz Switching Frequency
• <1.0µA Shutdown Current
• Internal Power MOSFETs
• Internally Controlled Soft Start
• Fast Transient Response
• Ultra-Thin Solution (No Inductors)
• -40°C to +85°C Temperature Range
• Available in 8-Pin MSOP or 12-Pin TSOPJW
Package
Applications
• CCD Sensor Voltage Bias
• OLEDs
• Passive-Matrix Displays
• Personal Digital Assistants (PDAs)
• TFT Active-Matrix LCDs
Typical Application
INPUT
EN
NEGATIVE
OUTPUT
IN
EN
DRVN
AAT3190
FBN
DRVP
REF
FBP
GND
POSTIVE
OUTPUT
3190.2005.03.1.0
1

PagesPages 16
Télécharger [ AAT3190 ]


Fiche technique recommandé

No Description détaillée Fabricant
AAT3190 Positive/Negative Charge Pump for Voltage Bias ANALOGICTECH
ANALOGICTECH
AAT3192 (AAT3192 / AAT3193) 2-/3-Channel Charge-Pump LED Drivers AAT
AAT
AAT3193 (AAT3192 / AAT3193) 2-/3-Channel Charge-Pump LED Drivers AAT
AAT
AAT3194 High Efficiency 1.5X Fractional Charge Pump AAT
AAT

US18650VTC5A

Lithium-Ion Battery

Sony
Sony
TSPC106

PCI Bus Bridge Memory Controller

ATMEL
ATMEL
TP9380

NPN SILICON RF POWER TRANSISTOR

Advanced Semiconductor
Advanced Semiconductor


www.DataSheetWiki.com    |   2020   |   Contactez-nous  |   Recherche