A8513 ALLEGRO [Allegro MicroSystems], A8513 Datasheet - Page 16

• Manufacturer Part Number: A8513
• Description: Wide Input Voltage Range, High Efficiency Fault Tolerant LED Driver
• Manufacturer: ALLEGRO [Allegro MicroSystems]

C1
C2
C3
C4
Figure 18. ¯ F ¯ ¯ A ¯ ¯ ¯ U ¯ ¯ L ¯ ¯ T ¯ (ch1, 5 V/div.), V
100 mA/div.), and ISET (ch4, 1 V/div.), time = 1 μs/div.
A8513
FAULT
ISET
I
V
LED
SW
ISET Short to Ground
SW
t
(ch2, 20 V/div.), I
C1
C2
C3
C4
Figure 20. V
20 V/div.), ¯ F ¯ ¯ A ¯ ¯ ¯ U ¯ ¯ L ¯ ¯ T ¯ (ch4, 5 V/div.), time = 2 ms/div.
B
A
V
FAULT
V
V
OUT
SW
IN
IN
(ch1, 20 V/div.), V
OVP Tripped During Load Dump
LED
Wide Input Voltage Range, High Efficiency
(ch3,
OUT
t
(ch2, 20 V/div.), and V
C1
C2
C3
Figure 19. ¯ F ¯ ¯ A ¯ ¯ ¯ U ¯ ¯ L ¯ ¯ T ¯ (ch1, 5 V/div.), I
1 V/div.), time = 2 ms/div.
B
A
FAULT
ISET
I
LED
Recovery from ISET Short to Ground
Fault Tolerant LED Driver
SW
(ch3,
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
LED
t
(ch2, 100 mA/div.), and ISET (ch3,
16