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
0 100 200 300 400 500
300
310
320
330
340
350
I
LED
(mA)
RIADJ ()
0 20 40 60 80 100
350
375
400
425
450
I
LED
(mA)
RVREF (k)
Complete Circuit Schematic www.ti.com
Figure 1. LED current vs. RIADJ Figure 2. LED current vs. RVREF
RVREF = open RIADJ = 0Ω
4 Complete Circuit Schematic
Figure 3. Complete Evaluation Board Schematic
2
AN-2208 TPS92550 450mA 36V LED Driver Micro-Module Evaluation Board SNVA640A–May 2012–Revised May 2013
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