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ACT6358 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - (ACT6357 / ACT6358) 40V Step-Up WLED Bias Supplies - Active-Semi

भाग संख्या ACT6358
समारोह (ACT6357 / ACT6358) 40V Step-Up WLED Bias Supplies
मैन्युफैक्चरर्स Active-Semi 
लोगो Active-Semi लोगो 
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<?=ACT6358?> डेटा पत्रक पीडीएफ

ACT6358 pdf
ACT6357/ACT6358www.DataSheet4U.com
Rev0, 03-Feb-08
ORDERING INFORMATION
PART NUMBER
ACT6357NH-T
ACT6358NH-T
CURRENT
LIMIT
0.5A
1A
TEMPERATURE
RANGE
-40°C to 85°C
-40°C to 85°C
PIN CONFIGURATION
PACKAGE
TDFN33-8
TDFN33-8
PINS
8
8
PACKAGING
TAPE & REEL
TAPE & REEL
G1
IN 2
EN 3
BC 4
ACT6357
ACT6358
8 SW
7 OV
6 SS
5 FB
TDFN33-8
PIN DESCRIPTIONS
PIN NAME
DESCRIPTION
1 G Ground
2 IN Supply Input
3
EN
Enable Control. Drive to a logic high to enable the device. Connect to a logic low to disable the
device. EN should not be left floating; connect EN to IN when unused.
Brightness Control. Multifunction pin accepts either a PWM or analog control signal. When using a
4
BC
PWM control signal, the best results are achieved when the PWM frequency is in the 100Hz to
10kHz range and when the PWM high voltage is 1.8V or higher. When using an analog control sig-
nal, the best results are achieved when the control voltage is in the 0V to 1.8V range.
5
FB
Feedback Input. Connect this pin to the cathode of the bottom LED, and a current feedback resistor
between this pin and G to set the LED bias current.
6
SS
Soft Start Control Input. Connect a capacitor from this pin to G to program the soft start duration. SS
is internally discharged when IC the is disabled.
7
OV
Over Voltage Protection Input. The IC is automatically disabled when the voltage at this pin exceeds
1.21V. Connect OV to the center point of a resistive voltage divider connected across the LED string.
8 SW Switch Output. Connect this pin to the inductor and the Schottky diode.
EP EP Exposed Pad. Connect to ground.
Innovative Products. Active Solutions.
-2-
www.active-semi.com
Copyright © 2008 Active-Semi, Inc.

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भाग संख्याविवरणविनिर्माण
ACT6357(ACT6357 / ACT6358) 40V Step-Up WLED Bias SuppliesActive-Semi
Active-Semi
ACT6358(ACT6357 / ACT6358) 40V Step-Up WLED Bias SuppliesActive-Semi
Active-Semi


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