A8504EECTR-T Allegro Microsystems Inc, A8504EECTR-T Datasheet - Page 6

• Manufacturer Part Number: A8504EECTR-T
• Description: IC,Laser Diode/LED Driver,LLCC,28PIN,PLASTIC
• Manufacturer: Allegro Microsystems Inc
• Type: Backlight, White LED, RGBr

Specifications of A8504EECTR-T

• Topology: PWM, Step-Up (Boost)
• Number Of Outputs: 8
• Internal Driver: Yes
• Type - Primary: Backlight
• Type - Secondary: RGB, White LED
• Frequency: 200kHz ~ 2MHz
• Voltage - Supply: 4.2 V ~ 5.5 V
• Voltage - Output: 47V
• Mounting Type: Surface Mount
• Package / Case: 26-WFQFN Exposed Pad
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 45mA
• 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: 620-1215-2

A8504
100
95
90
85
80
75
95
90
85
80
75
70
95
90
85
80
75
70
95
90
85
80
75
70
0
0
0
0
20
20
20
20
40
40
40
40
Duty Cycle (%)
Duty Cycle (%)
Duty Cycle (%)
Duty Cycle (%)
60
60
60
60
V
V
V
V
WLED/RGB Backlight Driver for Medium Size LCDs
IN
IN
IN
IN
= 5 V, 6 ch. with 7 LEDs per ch., 40 mA per ch., f
= 5 V, 6 ch. with 7 LEDs per ch., 40 mA per ch., f
= 5 V, 8 ch. with 8 LEDs per ch., 40 mA per ch., f
= 5 V, 8 ch. with 8 LEDs per ch., 40 mA per ch., f
Efficiency with PWM dimming: PLED/PBAT, V
Performance Characteristics
80
80
80
80
V
V
V
V
BAT
BAT
BAT
BAT
(V)
(V)
(V)
(V)
15
21
15
21
15
21
15
21
9
9
9
9
100
100
100
100
100
95
90
85
80
75
70
95
90
85
80
75
95
90
85
80
75
70
95
90
85
80
75
70
0
0
0
0
IN
Expanded View, Lower Range: Duty Cycle (%)
Expanded View, Lower Range: Duty Cycle (%)
Expanded View, Lower Range: Duty Cycle (%)
Expanded View, Lower Range: Duty Cycle (%)
= 5 V
2
2
2
2
SW
SW
SW
SW
= 1 MHz
= 2 MHz
= 1 MHz
= 2 MHz
4
4
4
4
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
6
6
6
6
8
8
8
8
V
V
V
V
BAT
BAT
BAT
BAT
(V)
(V)
(V)
(V)
15
21
15
21
15
21
15
21
9
9
9
9
10
10
10
10
6