A8514KLPTR-T Allegro Microsystems Inc, A8514KLPTR-T Datasheet - Page 30

• Manufacturer Part Number: A8514KLPTR-T
• Description: IC LED DVR WHT 4X80MA 16-ETSSOP
• Manufacturer: Allegro Microsystems Inc

Specifications of A8514KLPTR-T

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

A8514
Typical Application Circuits
4.7 μF
C
IN
C
10 kΩ
10 to 14 V
IN
9 to 16 V
V
V
IN
IN
V
Figure 34. Typical application showing boost configuration, using R
ground protection.
Figure 35. Typical application showing SEPIC configuration, with accurate input current sense, and VSENSE
to ground protection.
V
C
C
0.03 Ω
243 Ω
R
R
R
R
SC
ADJ
SC
8.25 kΩ
ADJ
R
ISET
R
ISET
20 Ω
R
R
C
C
C
0.1 μF
VDD
22 nF
C
C
C
VDD
C
C
R
10 kΩ
R
FSET
FSET
Q1
Q1
Wide Input Voltage Range, High Efficiency
GATE
VSENSE
VIN
VDD
FAULT
PWM/EN
APWM
ISET
FSET/SYNC
GATE
VSENSE
VIN
VDD
FAULT
PWM/EN
APWM
ISET
FSET/SYNC
10 μH
L1
AGND
L1
AGND
A8514
A8514
PAD
PAD
SW
SW
PGND
PGND
COMP
C
COMP
LED1
LED2
LED3
LED4
SW
LED1
LED2
LED3
LED4
OVP
OVP
SC
143 kΩ
Fault Tolerant LED Driver
current sensing and, and VSENSE to
L2
R
R
OVP
120 pF
OVP
C
C
P
P
4.7 μF
C
C
150 Ω
R
V
OUT
C
0.47 μF
R
OUT
C
Z
OUT
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
Z
Z
Z
4.7 μF
C
V
OUT
OUT
30