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RT8470 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - High Brightness LED Driver - Richtek

भाग संख्या RT8470
समारोह High Brightness LED Driver
मैन्युफैक्चरर्स Richtek 
लोगो Richtek लोगो 
पूर्व दर्शन
1 Page
		
<?=RT8470?> डेटा पत्रक पीडीएफ

RT8470 pdf
RT8470
Typical Application Circuit
VIN
7V to 30V
CIN
RT8470
VIN SENSE
ADJ
GND
LX
RS
optional
D
L
Functional Pin Description
Pin No.
SOP-8
(Exposed Pad)
TSOT-23-5
71
Pin Name
LX
Pin Function
Switch Output Terminal. Drain of internal N-MOSFETs.
3, 8,
9 (Exposed Pad)
2
GND
Ground. The exposed pad must be soldered to a large PCB and
connected to GND for maximum power dissipation.
Dimming Control Input :
4
3 ADJ
--- Analog signal input for analog control of PWM dimming.
--- PWM signal input for digital PWM dimming.
2 4 SENSE Output Current Sense Terminal. Sense LED string current.
1
5 VIN
Supply Input Voltage.
5, 6
-- NC
No Internal Connection.
Function Block Diagram
VIN
Regulator
Bandgap
UVLO
UVLO
VCC
1.25V
+
-
Ramp Gen.
+ Dimming
ADJ -
www.richtek.com
2
UVLO
Dimming
SENSE
LX
GND
DS8470-04 August 2011

विन्यास 13 पेज
डाउनलोड[ RT8470 Datasheet.PDF ]


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