Datasheet

1 3 4 5 6 2 7
EP
LED+ LED+
DIM
GND
VREF
IADJ
LED-
V
IN
High Power LED String
I
LED
I
IN
TPS92550
CIN
RVREF
RIADJ
COUT
U1
www.ti.com Circuit Example 1: Complies with EN55015 Radiated Emissions
7 Circuit Example 1: Complies with EN55015 Radiated Emissions
Figure 29. Component Schematic, V
IN
= 36V, I
LED
= 300mA , No. of LED = 10, Complies with EN55015
Radiated Emissions
Table 5. Bill of Materials
Designator Description Case Size Manufacturer Manufacturer P/N Quantity
LED Micro-Module
U1 PFM-7 Texas Instruments TPS92550 1
Driver
CIN 2.2 µF, X7R, 100V 1210 Murata GRM32ER72A225KA35L 1
COUT 2.2 µF, X7R, 100V 1210 Murata GRM32ER72A225KA35L 1
RIADJ 499Ω 0603 Vishay CRCW0603499RFKEA 1
RVREF No connection N/A N/A N/A 0
Figure 30. Complies with EN55015 Radiated Figure 31. Complies with EN55015 Radiated
Emissions Emissions
(HORI. / HEIGHT=3.0m / RANGE=10m) (VERT. / HEIGHT=1.0m / RANGE=10m)
V
IN
= 36V, I
LED
= 300mA , No. of LED = 10 V
IN
= 36V, I
LED
= 300mA, No. of LED = 10
Tested on TPS92550 Evaluation Board Tested on TPS92550 Evaluation Board
11
SNVA640A–May 2012–Revised May 2013 AN-2208 TPS92550 450mA 36V LED Driver Micro-Module Evaluation Board
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