- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄24836 > 935285129118 (NXP SEMICONDUCTORS) LED DISPLAY DRIVER, PDSO28 PDF資料下載
參數(shù)資料
| 型號： | 935285129118 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 顯示驅(qū)動器 |
| 英文描述： | LED DISPLAY DRIVER, PDSO28 |
| 封裝： | 4.40 MM, PLASTIC, MO-153, SOT361-1, TSSOP-28 |
| 文件頁數(shù)： | 51/54頁 |
| 文件大?。?/td> | 410K |
| 代理商： | 935285129118 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁當(dāng)前第51頁第52頁第53頁第54頁
PCA9685_2
NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 02 — 16 July 2009
6 of 50
NXP Semiconductors
PCA9685
16-channel, 12-bit PWM Fm+ I2C-bus LED controller
[1]
HVQFN28 package die supply ground is connected to both VSS pin and exposed center pad. VSS 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.
[2]
This pin must be grounded when this feature is not used.
7.
Functional description
Refer to Figure 1 “Block diagram of PCA9685”.
7.1 Device addresses
Following a START condition, the bus master must output the address of the slave it is
accessing.
There are a maximum of 64 possible programmable addresses using the 6 hardware
address pins. Two of these addresses, Software Reset and LED All Call, cannot be used
because their default power-up state is ON, leaving a maximum of 62 addresses. Using
other reserved addresses, as well as any other subcall address, will reduce the total
number of possible addresses even further.
7.1.1 Regular I2C-bus slave address
internal pull-up resistors are incorporated on the hardware selectable address pins and
they must be pulled HIGH or LOW.
Remark: Using reserved I2C-bus addresses will interfere with other devices, but only if the
devices are on the bus and/or the bus will be open to other I2C-bus systems at some later
date. In a closed system where the designer controls the address assignment these
addresses can be used since the PCA9685 treats them like any other address. The
LED All Call, Software Reset and PCA9564 or PCA9665 slave address (if on the bus) can
never be used for individual device addresses.
PCA9685 LED All Call address (1110 000) and Software Reset (0000 0110) which
are active on start-up
LED12
19
16
O
LED driver 12
LED13
20
17
O
LED driver 13
LED14
21
18
O
LED driver 14
LED15
22
19
O
LED driver 15
OE
23
20
I
active LOW output enable
A5
24
21
I
address input 5
EXTCLK
25
22
I
external clock input[2]
SCL
26
23
I
serial clock line
SDA
27
24
I/O
serial data line
VDD
28
25
power supply
supply voltage
Table 2.
Pin description …continued
Symbol
Pin
Type
Description
TSSOP28
HVQFN28
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 935287058118 | LED DISPLAY DRIVER, PQCC28 |
| 935289802118 | LED DISPLAY DRIVER, PDSO28 |
| 935288883112 | DATACOM, INTERFACE CIRCUIT, PDSO8 |
| 935288883115 | DATACOM, INTERFACE CIRCUIT, PDSO8 |
| 935288883118 | DATACOM, INTERFACE CIRCUIT, PDSO8 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 935286409157 | 制造商:NXP Semiconductors 功能描述:IC AMP AUDIO DGTL MONO D 24HVQFN |
| 935286496115 | 制造商:NXP Semiconductors 功能描述:IC ANALOG SWITCH SPDT 10XQFN |
| 935286689118 | 制造商:NXP Semiconductors 功能描述:935286689118 |
| 935286882115 | 制造商:NXP Semiconductors 功能描述:IC ANALOG SWITCH SPDT 10HVSON |
| 935286883115 | 制造商:NXP Semiconductors 功能描述:IC BUFFER/LINE DVR 3STATE 10XSON |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。