最新免费av在线观看,亚洲综合一区成人在线,中文字幕精品无码一区二区三区,中文人妻av高清一区二区,中文字幕乱偷无码av先锋

MAX6968AAE+ Datasheet

  • MAX6968AAE+

  • IC LED DRIVER LINEAR 16-SSOP

  • 13頁

  • Maxim   Maxim

掃碼查看芯片數(shù)據(jù)手冊

上傳產(chǎn)品規(guī)格書

PDF預(yù)覽

16-Port, 36V Constant-Current LED Driver
Detailed Description
The MAX6971 LED driver comprises a 4-wire serial
interface driving 16 constant-current-sinking, open-
drain output ports. The outputs drive LEDs in either
static or multiplex applications (Figure 1). The constant-
current outputs are guaranteed for current accuracy
not only with chip-supply voltage variations (5V 鹵10%
and 3V to 5.5V), but also over a realistic range of driver
output voltage drop (0.8V to 2.5V). The drivers use cur-
rent-sensing feedback circuitry (not simple current mir-
rors) to ensure very small current variations over the full
allowed range of output voltage (see the
Typical
Operating Characteristics).
The 4-wire serial interface comprises a 16-bit shift reg-
ister and a 16-bit transparent latch. The shift register is
written through a clock input, CLK, and a data input,
DIN, and the data propagates to a data output, DOUT.
The data output allows multiple drivers to be cascaded
and operated together. The contents of the 16-bit shift
register are loaded into the transparent latch through a
latch-enable input, LE. The latch is transparent to the
shift register outputs when high, and latches the current
state on the falling edge of LE.
Each driver output is an open-drain, constant-current
sink that should be connected to the cathode of either
a single LED or a series string of multiple LEDs. The
LED anode can be connected to a supply voltage of up
to 36V, independent of the MAX6971 supply, V+. The
constant-current capability is up to 55mA per output,
set for all eight outputs by an external resistor, R
SET
.
MAX6971
4-Wire Serial Interface
The serial interface on the MAX6971 is a 4-wire serial
interface using four inputs (DIN, CLK, LE,
OE)
and a
data output (DOUT). This interface is used to write dis-
play data to the MAX6971. The serial-interface data
word length is 16 bits, D0鈥揇15. See Figure 2.
The functions of the five interface pins are as follows.
DIN is the serial-data input, and must be stable when it
is sampled on the rising edge of CLK. Data is shifted in,
MSB first. This means that data bit D15 is clocked in
first, followed by 15 more data bits finishing with the
LSB, D0.
LE
t
CL
t
CH
t
CP
CLK
t
DH
t
DS
DIN
D15
D14
D1
t
DO
DOUT
D0
t
LS
t
LW
t
LF
D7
OE
t
OEL
t
OEW
t
OEH
80%
.
t
r
20%
t
f
OUT_
Figure 2. 4-Wire Serial-Interface Timing Diagram
_______________________________________________________________________________________
7

MAX6968AAE+ 產(chǎn)品屬性

  • Lead (SnPb) Finish for COTSObsolescence Mitigation Program

  • 76

  • 集成電路 (IC)

  • PMIC - LED 驅(qū)動器

  • -

  • 是

  • -

  • 8

  • 是

  • LED 照明顯示器，標(biāo)牌，汽車

  • -

  • -

  • 3 V ~ 5.5 V

  • 5.5V

  • 表面貼裝

  • 16-SSOP（0.209"，5.30mm 寬）

  • 16-SSOP

  • 管件

  • -40°C ~ 125°C

MAX6968AAE+相關(guān)型號PDF文件下載

您可能感興趣的PDF文件資料

熱門IC型號推薦

掃碼下載APP，
一鍵連接廣大的電子世界。

在線人工客服

買家服務(wù)：
賣家服務(wù)：
技術(shù)客服：

0571-85317607

網(wǎng)站技術(shù)支持

13606545031

客服在線時間周一至周五
9:00-17:30

關(guān)注官方微信號，
第一時間獲取資訊。

建議反饋
返回頂部

建議反饋

聯(lián)系人：

聯(lián)系方式：

按住滑塊，拖拽到最右邊
>>
感謝您向阿庫提出的寶貴意見，您的參與是維庫提升服務(wù)的動力！意見一經(jīng)采納，將有感恩紅包奉上哦！