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EM8801A 데이터시트 PDF




Excelliance MOS에서 제조한 전자 부품 EM8801A은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

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부품번호 EM8801A 기능
기능 Current-Mode Controller
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EM8801A 데이터시트, 핀배열, 회로
EM8801A
Constant Off Time, Current-Mode Controller for LED Applications
General Description
EM8801A is a constant off time current mode
controller. This device can operated with a fixed off
time of the power switch. The TOFF pin is provided
to set the off time. In addition, the PWMD pin
enables the user to use a PWM signal to modulate
the switching pattern and adjust the average
luminosity. The LD/SS pin enables the user to set
peak current by adjust the voltage of this pin.
This part includes internal soft start, maximum
on time protection, over current protection and
thermal shutdown function. This part is available in
SOP-8 package.
Ordering Information
Part Number Package
EM8801AG SOP-8
Remark
Features
Constant Off Time Current-Mode Control
Adjustable Off Time
Internal Leading Edge Blanking
Internal Start Up Delay
Maximum On Time Protection
Over Current Protection
Built-in Thermal Shutdown
PFM mode operation to reduce EMI
Internal / External Soft Start Function
Applications
LED Backlight or lighting
RGB Backlight or lighting
Organic Light-Emitting Diode Backlight or
lighting
AC-DC or DC-DC LED Driver applications.
Pin Configuration
Typical Application Circuit
2011/12/09
Rev.A.1
1




EM8801A pdf, 반도체, 판매, 대치품
EM8801A
Absolute Maximum Ratings (Note 1)
Supply voltage, VCC--------------------------------------------------------------- -0.3V to 40V
GATE---------------------------------------------------------------------------------- -0.3V to 40V
Other pins--------------------------------------------------------------------------- 0.3V to 6V
Power Dissipation, PD @ TA = 25°C, SOP-8 -------------------------------- 0.909W
Package Thermal Resistance, ΘJA, SOP-8 (Note 2)------------------------- 110°C/W
Junction Temperature------------------------------------------------------------ 150°C
Lead Temperature (Soldering, 10 sec.)---------------------------------------- 260°C
Storage Temperature Range----------------------------------------------------- -65°C to 150°C
ESD susceptibility (Note3)
HBM (Human Body Mode)------------------------------------------------------ 2kV
MM (Machine Mode)------------------------------------------------------------ 200V
Recommended Operating Conditions (Note4)
Supply Input Voltage, VCC -----------------------------------------------------
VCC capacitor ---------------------------------------------------------------------
Junction Temperature -------------------------------------------------------
Ambient Temperature -------------------------------------------------------
9.75V to 34V
1uF to 10uF
-40°C to 125°C
-40°C to 85°C
Electrical Characteristics
VCC=12V, RTOFF=40kohm, TA=25, unless otherwise specified
Parameter
Symbol
Test Conditions
VCC Section
VCC On Threshold Voltage
VCC Off Hysteresis Voltage
Current Consumption in Latch Mode
Current Consumption in Start-up
VTH-ON
VTH-HY
ICC-L ATCH
ICC-OP1
Current Consumption in Device Disable ICC-OP2
Current Consumption
Switching
in
Device ICC-OP3
VCC OVP Protect voltage
IOVP
Gate Section
VCC=VTH-ON-0.2V
VCC=12V,
VPWMD=0V
CGATE=1nF
FSW=60KHz
Rising Time
Falling Time
Gate Maximum Voltage
Current-Sense Section
TR
TF
VGATE
CL = 1nF
CL = 1nF
Maximum Internal Current Set-point
Leading Edge Blanking Time
VCSLim
TLEB
Min Typ Max Units
9.0 9.75 10.5 V
1.5 V
0.6 1.2 mA
0.05 0.08 mA
0.6 1.2 mA
1.5 2.35 mA
34 36 38 V
80 140 ns
30 60 ns
15 V
0.285
0.3
0.315
V
300 ns
2011/12/09
Rev.A.1
4

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EM8801A 전자부품, 판매, 대치품
EM8801A
Temperature (oC)
Fig7. Max On Time vs. Temperature
Temperature (oC)
Fig8. Vcs_LIMIT vs. Temperature
Temperature (oC)
Fig9. Vcs_OCP vs. Temperature
Temperature (oC)
Fig10. VCC_OVP vs. Temperature
2011/12/09
Rev.A.1
7

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부품번호상세설명 및 기능제조사
EM8801A

Current-Mode Controller

Excelliance MOS
Excelliance MOS

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