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XR76205EL-Q Datasheet, PDF (21/25 Pages) Exar Corporation – Power Management
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LED Lighting
AC Step Drivers
Exar is the world leader in AC step driver solutions for LED bulbs, tubes,
troffers, downlights and decorative LED applications. Our patented
distributed architecture eliminates the need for magnetics, MOVs and
electrolytic capacitors providing robust, cost effective and extremely
small solutions with low flicker, high power factor and low THD.
Applications
■■ Downlight
■■ High bay
■■ Specialty
■■ Architectural
Part
Number
XR46203
XR46110
XR46073
XR46050
XR46051
XR46084
XR46083
XR46010
XR46014
XR46000
Steps
2
1
2
2
2
1
1
1
1
-
Max
Voltage
(V)
78
78
78
78
78
80
80
80
80
600
VOUT
MAX
(mA)
180
Power Line
Regulation
Y
Dimming
Y; Triac
180
Y
Y; Triac
180
Y
Y; Triac
180
N
Y; Triac
180
N
Y; Triac
130
N
Y; Triac
130
N
N
60
-
Y; Improved Triac
250
N
Y; Triac
-
-
-
+
VAC
ILED
BD
Package
TDFN-8
TDFN-6
TDFN-6
TDFN-6
TDFN-8
TDFN-6,
SOT-89-5
TDFN-6,
SOT-89-5
SOT23-3
SOT223-3
SOT223-3
Features
■■ 2-step integrated driver
■■ Better thermal performance
■■ Built in thermal foldback and VIN pin clamp
■■ 1-step driver
■■ Improved line regulation
■■ Built in thermal foldback and VIN pin clamp
■■ 2-step integrated driver
■■ Improved line regulation
■■ Built in thermal foldback and VIN pin clamp
■■ 2-step integrated driver
■■ Smallest footprint solution
■■ Built in thermal foldback and VIN pin clamp
■■ 2-step integrated driver
■■ Smallest footprint solution
■■ Built in thermal foldback and VIN pin clamp
■■ 1-step driver
■■ For use in non-dimmable applications
■■ 1-step driver
■■ For use in non-dimmable applications
■■ Improves TRIAC dimmable performance when used
with other AC step drivers
■■ 1-step driver
■■ For use in dimmable applications and
full balance systems
■■ N-Channel Power MOSFET
■■ Use with all Exar step driver solutions
■■ Provides > 750V native surge capability
LED1
RA
RIN
RB CLR
VIN
GATE
VL
SOURCE
XR46073
GND
CS
U1
LED2
Q1 (NMOS)
XR46000
LED3
R1
Two-Step LED Current Controller
21
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