IS31FL3189-QFLS2-TR ISSI, IS31FL3189-QFLS2-TR Datasheet - Page 11

• Manufacturer Part Number: IS31FL3189-QFLS2-TR
• Description: LED Lighting Drivers Audio Modulated Led Drvr
• Manufacturer: ISSI

Specifications of IS31FL3189-QFLS2-TR

• Maximum Supply Current: 1 mA
• Output Current: 17.5 mA, 28.9 mA, 38.9 mA, 46.7 mA, 66.5 mA
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: QFN-20
• Factory Pack Quantity: 2500

IS31FL3189
OUTx_EN
0
1
Table 14 Top-down_EN Registers (1Fh)
Top-down_EN Register controls the on or off state of
top-down scan mode. This function is designed for the
application where constant output current is needed.
When IS31FL3189 is working in top-down scan mode,
setting
D4 of Top-down register to “1”， the IS31FL3189 can
keep the output always turned on, and the output
current range can be set by writing the RC register
(D4:D2 of Audio Input Gain Register(01h)).
_________________________
Top-down_EN
0
1
Integrated Silicon Solution, Inc. – www.issi.com
Rev.A, 11/14/2011
Default
Name
Bit
Output States
Output Off
Output On
D7:D5
000
-
Top-down Scan Mode Enable
Enable
Disable
_________________________
Top-down_EN
D4
0
D3: D0
0000
-
Table 15 RGB Gain2 Register (20h)
RGB Gain2 Register makes RGB current on the fifth
setting at 17.5mA.
D1
1
0
D0
1
0
Function
Default
Bit
RGB1 Current Setting
RGB1 Current is Set To 17.5mA
RGB1 Current is Set By REG 03h
RGB2 Current Setting
RGB2 Current is Set To 17.5mA
RGB2 Current is Set By REG 03h
000000
D7:D2
-
RGB1_C
D1
0
RGB2_C
D0
0
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