PCA9922BS NXP [NXP Semiconductors], PCA9922BS Datasheet - Page 3
PCA9922BS
Manufacturer Part Number
PCA9922BS
Description
8-channel constant current LED driver with output error detection
Manufacturer
NXP [NXP Semiconductors]
Datasheet
1.PCA9922BS.pdf
(26 pages)
NXP Semiconductors
5. Block diagram
PCA9922_1
Product data sheet
Fig 1.
R_EXT
Block diagram of PCA9922
CLK
V
SDI
OE
DD
LE
8-channel constant current LED driver with output error detection
V
V
DD
SS
Rev. 01 — 15 January 2009
CURRENT REGULATOR
LED0
8 SHIFT REGISTER
ERROR CONTROL
OUTPUT ENABLE
8 DATA LATCH
LED1
LED7
AUTO SHUTDOWN
AUTO POWER-UP
PCA9922
AND
DETECT
ERROR
002aad311
PCA9922
© NXP B.V. 2009. All rights reserved.
SDO
V
SS
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