sc624a Semtech Corporation, sc624a Datasheet - Page 7

• Manufacturer Part Number: sc624a
• Description: Led Light Management Unit Charge Pump, 4 Leds, Dual Ldos, And I 2 C Interface
• Manufacturer: Semtech Corporation

Typical Characteristics
160
110
150
140
130
120
100
100
35
30
40
25
20
15
90
80
70
60
50
4.2
4.2
4.2
V
V
V
OUT
OUT
OUT
Backlight Effi ciency (4 LEDs) — 25mA Each
=3.33V, I
=3.66V, I
=3.66V, I
Battery Current (4 LEDs) — 25mA Each
Battery Current (4 LEDs) — 5.0mA Each
4.0
4.0
4.0
OUT
OUT
OUT
=20mA, 25°C
=100mA, 25
=100mA, 25
3.8
3.8
3.8
°
°
C
C
V
V
V
IN
3.6
IN
3.6
IN
3.6
(V)
(V)
(V)
3.4
3.4
3.4
3.2
3.2
3.2
3.0
3.0
3.0
100
100
90
70
80
70
50
90
80
60
50
80
66
59
52
45
73
60
4.2
4.2
4.2
V
V
V
Backlight Effi ciency (4 LEDs) — 12mA Each
Backlight Effi ciency (4 LEDs) — 5.0mA Each
OUT
OUT
OUT
=3.50V, I
=3.50V, I
=3.33V, I
Battery Current (4 LEDs) — 12mA Each
4.0
4.0
4.0
OUT
OUT
OUT
=48mA, 25°C
=48mA, 25°C
=20mA, 25°C
3.8
3.8
3.8
V
V
V
IN
IN
IN
3.6
3.6
3.6
(V)
(V)
(V)
3.4
3.4
3.4
SC624A
3.2
3.2
3.2
3.0
3.0
3.0
7