STLED325QTR STMicroelectronics, STLED325QTR Datasheet - Page 57

• Manufacturer Part Number: STLED325QTR
• Description: LED Lighting Drivers I2C interfaced LED controller/driver
• Manufacturer: STMicroelectronics

Specifications of STLED325QTR

• Product Category: LED Lighting Drivers
• Rohs: yes
• Input Voltage: 5 V
• Maximum Supply Current: 2 mA
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: QFN-32
• Minimum Operating Temperature: - 40 C
• Power Dissipation: 1200 mW

STLED325
10.3
Application diagram
Figure 22. Application schematic
Resistors:
RSET = external resistor for current setting
R1 = 1-10 KO SDA external pull-up resistor
R2 = 1-10 KO SCL external pull-up resistor
R3 = 1-10 KO IRQ_N external pull-up resistor
R4-R5 = 10 KO external key-matrix pull-down resistors
Capacitors:
C1 = 33 µF (25 V) electrolytic
C2 = 0.01-0.1µF (25V) ceramic
Creg=0.1 uF
CL1 = CL2 = 25pF
Diodes
D1-D8 = 1N4148
Supply voltage
V
CC
M ain C P U
IR rem ote
= 5 V ± 10%
C 1
G N D
control
sensor
C L1
(32.768K H z)
C 2
C rystal
R 3
R 2
C L2
R 1
W A K E _U P
IR Q _N
M U TE
S TB Y
R E A D Y
S C L
S D A
V B A T
R S E T
X O
IS E T
IR _IN
X I
G N D
G N D
V C C
S T LE D 325
R 4
Doc ID 17576 Rev 1
R 5
-S E G 8/K S 8
S E G 1/K S 1
K E Y 1-K E Y 2
D IG 1-D IG 4
D IG 5
D 1
D 2
C reg
D 3
(8x2 m atrix)
K eyscan
4
D 4
D 5
D 6
D 7
D 8
Application information
W ith som e individual LE D s
LE D 4 -D igit 7 -segm ent
D isplay panel
(+ dot
-point)
AM08725V1
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