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SC652 Datasheet(PDF) 7 Page - Semtech Corporation

Part # SC652
Description  Backlight Driver for 5 LEDs with Charge Pump and PWM Control
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Manufacturer  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC652 Datasheet(HTML) 7 Page - Semtech Corporation

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SC652
7
Ripple — 1X Mode
V
IN
(100mV/div)
V
IN
=4.2V, R
ISET
= 4kΩ, 5 Backlights — 25 mA each, 25°C (see note 1)
Time (10μs/div)
V
OUT
(100mV/div)
Ripple — 1.5X Mode
V
IN
(100mV/div)
V
IN
=3.2V, R
ISET
= 4kΩ, 5 Backlights — 25 mA each, 25°C (see note 1)
Time (10μs/div)
V
OUT
(100mV/div)
Ripple — 2X Mode
V
IN
(100mV/div)
V
IN
=2.9V, R
ISET
= 4kΩ, 5 Backlights — 25 mA each, 25°C (see note 1)
Time (10μs/div)
V
OUT
(100mV/div)
Typical Characteristics (continued)
NOTE 1: C
IN
= C
OUT
= 4.7μF — 0603 size (1608 metric); C
1
= C
2
= 2.2μF — 0402 size (1005 metric)
NOTE 2: C
IN
= C
OUT
= C
1
= C
2
= 2.2μF — 0603 size (1608 metric)
Ripple — 1X Mode
V
IN
(100mV/div)
V
IN
=4.2V, R
ISET
= 5.56kΩ, 5 Backlights — 18 mA each, 25°C (see note 2)
Time (10μs/div)
V
OUT
(100mV/div)
Ripple — 1.5X Mode
V
IN
(100mV/div)
V
IN
=3.2V, R
ISET
= 5.56kΩ, 5 Backlights — 18 mA each, 25°C (see note 2)
Time (10μs/div)
V
OUT
(100mV/div)
Ripple — 2X Mode
V
IN
(100mV/div)
V
IN
=2.9V, R
ISET
= 5.56kΩ, 5 Backlights — 18 mA each, 25°C (see note 2)
Time (10μs/div)
V
OUT
(100mV/div)


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