sc643 Semtech Corporation, sc643 Datasheet - Page 6

• Manufacturer Part Number: sc643
• Description: Light Management Unit With 4 Ldos And Sempulse Interface
• Manufacturer: Semtech Corporation

Typical Characteristics
100
100
200
180
160
140
120
90
70
60
50
80
60
50
10
40
30
20
4.2
4.2
4.2
V
V
V
OUT
OUT
OUT
Battery Current (5 LEDs) — 5.0mA Each
Battery Current (5 LEDs) — 25mA Each
= 3.65V, I
Battery Current (5 LEDs) — 12mA Each
= 3.45V, I
= 3.28V, I
3.9
3.9
3.9
OUT
OUT
OUT
= 125mA, 25°C
= 60mA, 25°C
= 25mA, 25°C
3.6
3.6
3.6
V
V
V
IN
IN
IN
(V)
(V)
(V)
3.3
3.3
3.3
3.0
3.0
3.0
2.7
2.7
2.7
100
100
100
50
90
80
70
60
90
80
70
50
90
70
60
60
50
80
4.2
4.2
4.2
V
V
V
Backlight Effi ciency (5 LEDs) — 12mA Each
Backlight Effi ciency (5 LEDs) — 25mA Each
Backlight Effi ciency (5 LEDs) — 5.0mA Each
OUT
OUT
OUT
= 3.65V, I
= 3.45V, I
= 3.28V, I
3.9
3.9
3.9
OUT
OUT
OUT
= 125mA, 25
= 60mA, 25
= 25mA, 25°C
3.6
3.6
3.6
°C
°C
V
V
V
IN
IN
IN
(V)
(V)
(V)
3.3
3.3
3.3
3.0
3.0
3.0
SC643
2.7
2.7
2.7
6
6