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RT8477A डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - High Voltage High Multiple-Topology Current LED Driver - Richtek

भाग संख्या RT8477A
समारोह High Voltage High Multiple-Topology Current LED Driver
मैन्युफैक्चरर्स Richtek 
लोगो Richtek लोगो 
पूर्व दर्शन
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<?=RT8477A?> डेटा पत्रक पीडीएफ

RT8477A pdf
RT8477A
Functional Pin Description
Pin No.
Pin Name
Pin Function
1
VCC
Supply Voltage Input. For good bypass, a low ESR capacitor is required.
2 ISP Positive Input Current Sense.
3 ISN Negative Input Current Sense. Voltage threshold between ISP and ISN is 100mV.
4 VC VC Compensation Node for Current Loop.
5 CTL Analog Dimming Control Input. Effective programming range is 0.33V to 2V.
6
SENS
Current Sense Input for LED Current. Connect the current sense resistor
between external N-MOSFET switch and the ground.
7
DRV
External MOSFET Switch Gate Driver Output.
8
CREG
Regulator Output. Placed 1F capacitor to stabilize the 5V regulator output.
9 (Exposed Pad) GND
Ground. The exposed pad must be soldered to a large PCB and connected to
GND for maximum power dissipation.
Function Block Diagram
VCC
CREG
VC
4.5V
OSC
-
+
5V
LDO
Soft-Start
CTL
S
R
R
-
GM
+
+
-
DRV
SENS
ISN
ISP
GND
Copyright ©2018 Richtek Technology Corporation. All rights reserved.
www.richtek.com
2
is a registered trademark of Richtek Technology Corporation.
DS8477A-04T00 December 2018

विन्यास 13 पेज
डाउनलोड[ RT8477A Datasheet.PDF ]


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भाग संख्याविवरणविनिर्माण
RT8477High Voltage High Current LED DriverRichtek
Richtek
RT8477AHigh Voltage High Multiple-Topology Current LED DriverRichtek
Richtek


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