A8500EECTR-T Allegro Microsystems Inc, A8500EECTR-T Datasheet - Page 3

• Manufacturer Part Number: A8500EECTR-T
• Description: IC,Laser Diode/LED Driver,LLCC,28PIN,PLASTIC
• Manufacturer: Allegro Microsystems Inc
• Type: Backlight, White LED, RGBr

Specifications of A8500EECTR-T

• Topology: PWM, Step-Up (Boost)
• Number Of Outputs: 8
• Internal Driver: Yes
• Type - Primary: Backlight
• Type - Secondary: RGB, White LED
• Frequency: 2MHz
• Voltage - Supply: 4.2 V ~ 5.5 V
• Voltage - Output: 28V
• Mounting Type: Surface Mount
• Package / Case: 26-WFQFN Exposed Pad
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 25mA
• Internal Switch(s): Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Efficiency: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 620-1204-2

A8500
C
IN
V
5 V ±10%
R
R
IN
FSET
ISET
C
COMP
C
AGND
APWM
FSET
SEL1
SEL2
SEL3
PWM
SKIP
ISET
EN
100 kΩ
100 kΩ
100 kΩ
Reference
Amp
Soft Start
VIN
and
PWM Generator
Serial Interface
100 kΩ
I
OUT_SET
On/Off
+
–
Feedback
Loop
Functional Block Diagram
∑
LGND
OSC
+
–
C
BAT
PGND
V
5 to 25 V
BAT
R
Flexible WLED/RGB Backlight Driver
S
Q
Current Sinks
LGND
10 μH
L1
SW
–
+
PGND
SW
D1
OVP
LED1
LED2
LED3
LED4
LED5
LED6
LED7
LED8
COUT
V
ROVP
OUT
for Medium Size LCDs
115 Northeast Cutoff, Box 15036
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 [phone]
www.allegromicro.com
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