参数资料
型号: PCA9922PW,118
厂商: NXP Semiconductors
文件页数: 5/27页
文件大小: 0K
描述: IC LED DRIVER LINEAR 16-TSSOP
产品培训模块: LED Controllers
标准包装: 1
恒定电流:
输出数: 8
内部驱动器:
类型 - 主要: 通用
类型 - 次要: 颜色
频率: 25MHz
电源电压: 3.3 V ~ 5.5 V
输出电压: 5.5V
安装类型: 表面贴装
封装/外壳: 16-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 16-TSSOP
包装: 标准包装
工作温度: -40°C ~ 85°C
产品目录页面: 845 (CN2011-ZH PDF)
其它名称: 568-4775-6
NXP Semiconductors
PCA9922
8-channel constant current LED driver with output error detection
6.2 Pin description
Table 3. Pin description
I = input; O = output.
Symbol
Pin
DIP16,
HVQFN20
Type
Description
TSSOP16
V SS
SDI
CLK
1
2
3
19 [1]
20
1
power supply
I
I
supply ground
serial data in
serial data clock used to shift data on SDI
into the shift register
LE/DM1
4
2
I
latch enable with internal pull-down
resistor; active HIGH signal used to
capture data in the shift register to present
to the outputs
Detection Mode 1
LED0
LED1
LED2
LED3
LED4
LED5
LED6
LED7
OE/DM2
5
6
7
8
9
10
11
12
13
3
4
5
6
10
11
12
13
14
O
O
O
O
O
O
O
O
I
constant current LED output driver 0
constant current LED output driver 1
constant current LED output driver 2
constant current LED output driver 3
constant current LED output driver 4
constant current LED output driver 5
constant current LED output driver 6
constant current LED output driver 7
output enable with internal pull-up resistor;
active LOW signal used to allow data
captured in the latch to be presented to the
constant current outputs
Detection Mode 2
SDO
R_EXT
V DD
n.c.
14
15
16
-
15
16
17
7, 8, 9, 18
O
analog input
power supply
-
serial data output
external resistor input
supply voltage
not connected
[1]
HVQFN20 package die supply ground is connected to both V SS pin and exposed center pad. V SS pin must
be connected to supply ground for proper device operation. For enhanced thermal, electrical, and board
level performance, the exposed pad needs to be soldered to the board using a corresponding thermal pad
on the board and for proper heat conduction through the board, thermal vias need to be incorporated in the
PCB in the thermal pad region.
PCA9922
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 6 April 2011
? NXP B.V. 2011. All rights reserved.
5 of 27
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