SC658ULTRT Semtech, SC658ULTRT Datasheet - Page 7

• Manufacturer Part Number: SC658ULTRT
• Description: Backlight Driver For 4 LEDs With SemPulseTM Interface
• Manufacturer: Semtech

Typical Characteristics (continued)
V
V
OUT
OUT
V
V
IN
IN
I
I
BL
BL
(00mV/div)
(00mV/div)
(00mV/div)
(00mV/div)
(0mA/div)
(0mA/div)
-2
-6
-4
-8
8
6
4
2
0
4.2
Backlight Accuracy (4 LEDs) — 12mA Each
C
C
IN
IN
= C
= C
OUT
OUT
3.9
= 4.7µF, V
= 4.7µF, 4 LEDs, — 5mA each
Ripple — 2x Mode
Ripple — 1x Mode
IN
= 2.9V, 4 LEDs — 5mA each
3.6
A
A
CC
CC
20µs�div
20µs�div
V
Max %
IN
Min %
(V)
s�div
s�div
�div
�div
3.3
3
2.7
V
OUT
V
V
I
OUT
IN
BL
I
I
BL
BL
(00mV/div)
(00mV/div)
V
V
(500mV/div)
(0mA/div)
(50mA/div)
(0mA/div)
OUT
OUT
(V/div)
(V/div)
C
IN
= C
Output Short Circuit Current Limit
0
0
OUT
Output Open Circuit Protection
= 4.7µF, V
Ripple — 1.5x Mode
IN
0
= 2.9V, 4 LEDs, — 5mA each
20µs�div
20µs�div
1ms�div
s�div
s�div
s�div
�div
�div
�div
7