EC4217 Datasheet, PDF (1/4 Pages) E-CMOS Corporation – Linear LED Driver (Pre-limitary Version)

Linear LED Driver
(Pre-limitary Version)
EC4217
GENERAL DESCRIPTION
EC4217 is a signal segment Linear LED Driver chip, Supply current(Sink) is 120mA at V_LED=25V and Pow=15V. Other
characteristic are sample application circuit (EC4217 use in 3.5 watts LED driver is only bridge rectifier and one
150kΩ resistor and one 4.7uF capacitor) and OVP( Over Voltage Protection)Function and negative coefficient output
current behavior。
FEATURES
●TO-252-5L Package Type。
● Sample application circuit。
● Built in 8V~15V Zener Diode equal circuit to supply chip power which no need Start up HVNMOS, so is convenient
used in 110V/220V line voltage。
APPLICATIONS
● LED Bulbs
ABSOLUTE MAXIMUM RATINGS
● I_Z=8mA。
● Pow=16.5V。
● Pin1 Break Down Voltage=600V at Pow=0V。
● Operating Temperature Range：-40℃ to 120℃
● Storage Temperature Range：-40℃ to 140℃
● ESD Level………………(H.B.M) 2KV
(M.M) 200V
Note:
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional Operation under
these conditions is not implied. Continuous operation of the device at the absolute rating level
may affect device reliability。
PIN CONFIGURATION
Pin Number
1
2
3
4
5
E-CMOS Corp. (www.ecmos.com.tw)
Top View
Pin Name
Function
LED
Link LED
OVP_In
Over Voltage Detect In
Gnd
Ground
Vref
2.5V Reference Voltage
Pow
Chip Power Supply
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4F24N Rev. P003