参数资料
型号: MAX6966ATE+T
厂商: Maxim Integrated
文件页数: 22/29页
文件大小: 0K
描述: IC LED DRIVER LINEAR 16-TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
恒定电流:
拓扑: 开路漏极,PWM
输出数: 10
内部驱动器:
类型 - 主要: 背光
类型 - 次要: RGB,白色 LED
频率: 270kHz ~ 450kHz
电源电压: 2.25 V ~ 3.6 V
输出电压: 7V
安装类型: 表面贴装
封装/外壳: 16-WFQFN 裸露焊盘
供应商设备封装: 16-TQFN(3x3)
包装: 带卷 (TR)
工作温度: -40°C ~ 125°C
MAX6966/MAX6967
10-Port Constant-Current LED Drivers and I/O
Expanders with PWM Intensity Control
Alternatively, the MAX6966/MAX6967s can be daisy-
chained by connecting the DOUT of one device to the
DIN of the next, and driving SCLK and CS lines in paral-
lel ( Figure 9). This connection allows the MAX6966/
MAX6967s to be read. Data at DIN propagates through
the internal shift registers and appears at DOUT 15.5
clock cycles later, clocked out on the falling edge of
SCLK. When sending commands to daisy-chained
MAX6966/MAX6967s, all devices are accessed at the
same time. An access requires (16 x n) clock cycles,
where n is the number of MAX6966/MAX6967s connect-
ed together. For daisy-chaining to work, DOUT/OSC
must be configured as DOUT by clearing configuration
register bit D7 to zero ( Table 4). Note that the MAX6966
powers up with DOUT/OSC configured as DOUT output
by default, while the MAX6967 powers up with
DOUT/OSC configured as OSC input by default. The
serial-interface speed (maximum SCLK) is limited to
17.5MHz when multiple devices are daisy-chained due
to the DOUT propagation delay and DIN setup time.
Figure 10 is the timing diagram.
MOSI
DIN
DOUT
DIN
DOUT
DIN
DOUT
CS
CS
CS
CS
μ C
SCLK
MAX6966
SCLK MAX6967
SCLK
MAX6966
MAX6967
SCLK
MAX6966
MAX6967
MISO
Figure 9. MAX6966/MAX6967 Daisy-Chain Connection
CS
t CSW
t CL
t CSH
SCLK
t CSS
t DS
t DH
t CH
t CP
DIN
D15
D14
D1
D0
t DO
DOUT
Figure 10. Timing Diagram
22
D15
Maxim Integrated
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