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A8601 PDF Datasheet ( 特性, スペック, ピン接続図 )

部品番号 A8601
部品説明 Multiple-Output Regulator
メーカ Allegro
ロゴ Allegro ロゴ 



Total 30 pages
		

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A8601 Datasheet, A8601 PDF,ピン配置, 機能
A8601
Multiple-Output Regulator for Automotive LCD Displays
Features and Benefits
• Automotive Grade AEC-Q100 qualified
• Five individual output supplies
• Independent control of each output voltage
• 350 kHz to 2.25 MHz switching frequency with external
synchronization capability
• <10 μA shutdown current
• Preprogrammed power-up and shutdown sequences
• Overcurrent, overvoltage, short circuit, and thermal
overload protection
Applications:
• GPS
• Infotainment
• Medium LCDs
Package: 28-pin TSSOP with exposed
thermal pad (suffix LP)
Description
The A8601 is a fixed frequency, multiple-output supply for
LCD bias. Its switching frequency can be either programmed
or synchronized with an external clock signal between 350 kHz
and 2.25 MHz, to minimize interference with AM and FM
radio bands.
A total of five output voltages are provided, from three linear
regulators and two charge-pump regulators. Each output
voltage can be adjusted independently. During power-up and
shutdown, the outputs are turned on and off in preprogrammed
sequences, to meet the sequencing requirements for specific
LCD panels.
Short circuit protection is provided for all outputs. The boost
switch is protected against overcurrent and overvoltage. Input
disconnect protection is achieved by driving an external
P-MOSFET.
28-pin exposed thermal pad TSSOP package allows operation
at high ambient temperatures. It is lead (Pb) free with 100%
matte-tin leadframe plating.
Not to scale
VIN
System Block Diagram
RSCOptionaQl 1
L1
D1
A8601-DS, Rev. 1
External Sync
VIN INS GATE
EN1
A8601
EN2
SW OUT
DVDD
AVDD
VDVDD 3.3 V
VAVDD 5 to 14 V
FSET_SYNC
VVGH 10 to 25 V
VGH
+
LCD Panel
VVIN
VVGL 5 to –12 V
VGL
1.5 to 3.2 V
FAULT
VINAMP
VVCOM 3 to 6 V
VCOM
+
Output voltages shown are
for typical LCD Panel

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