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A8519KETTR-R 数据表(PDF) 4 Page - Allegro MicroSystems

部件名 A8519KETTR-R
功能描述  Fully integrated 42 V MOSFET for boost converter
PDF  35 Pages
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制造商  ALLEGRO [Allegro MicroSystems]
网页  http://www.allegromicro.com
标志 ALLEGRO - Allegro MicroSystems

A8519KETTR-R 数据表(HTML) 4 Page - Allegro MicroSystems

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Wide Input Voltage Range, High-Efficiency,
Fault-Tolerant LED Driver
A8519 and
A8519-1
4
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Functional Block Diagram
Fault
Block
ISET
Block
Gate
Off
LED
Driver
Block
Diode Open
Sense
TSD
OVP2
VOUT
OVP
Enable
Block
PWM
Block
Regulator
UVLO Block
Input Current
Sense
Amplifier
GATE
PWM
VSENSE
VIN
Vin
AGND
AGND
AGND
SW
FSET
AGND
1.235 V
Reference
NMOS
Driver
Driver
Circuit
Internal Soft
Start Block
VOUT Hyst.
Control
OVP
Sense
Open/Short
LED Detect
Oscillator
Internal
V
CC
Internal V
CC
Frequency
Dithering
LED1
LED2
LED3
LED4
APWM
ISET
AGND
V
REF
V
REF
VDD
I
ADJ
AGND
FAULT
PGND
PGND
COMP
CLKOUT
+
–
OCP2
Current
Sense
Error
Amplifier



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