MAX6966ATE+ Maxim Integrated Products, MAX6966ATE+ Datasheet - Page 21
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MAX6966ATE+
Manufacturer Part Number
MAX6966ATE+
Description
IC LED DRIVER LINEAR 16-TQFN
Manufacturer
Maxim Integrated Products
Type
Linear (Serial Interface)r
Datasheet
1.MAX6966ATE.pdf
(29 pages)
Specifications of MAX6966ATE+
Constant Current
Yes
Topology
Open Drain, PWM
Number Of Outputs
10
Internal Driver
Yes
Type - Primary
Backlight
Type - Secondary
RGB, White LED
Frequency
270kHz ~ 450kHz
Voltage - Supply
2.25 V ~ 3.6 V
Voltage - Output
7V
Mounting Type
Surface Mount
Package / Case
16-TQFN Exposed Pad
Operating Temperature
-40°C ~ 125°C
Current - Output / Channel
20mA
Internal Switch(s)
Yes
Number Of Segments
10
Low Level Output Current
21100 uA
Operating Supply Voltage
2.25 V to 3.6 V
Maximum Supply Current
4 mA
Maximum Power Dissipation
1176 mW
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Efficiency
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
The MAX6966/MAX6967 communicate through an SPI-
compatible 4-wire serial interface. The interface has
three inputs: clock (SCLK), chip select (CS), and data
in (DIN), and one output, data out (DOUT). CS must be
low to clock data into or out of the device, and DIN
must be stable when sampled on the rising edge of
SCLK. DOUT is stable on the rising edge of SCLK.
Note that the SPI protocol expects DOUT to be high
impedance when the MAX6966/MAX6967 are not being
accessed; DOUT on the MAX6966/MAX6967 is never
high impedance. Go to www.maxim-ic.com/an1879 for
ways to convert the MAX6966/MAX6967 to tri-state,
if required.
SCLK and DIN can be used to transmit data to other
peripherals. The MAX6966/MAX6967 ignore all activity
on SCLK and DIN except when CS is low.
Table 11. Serial-Data Format
Figure
D15
R/W
8. MAX6966/MAX6967 Multiple CS Connection
10-Port Constant-Current LED Drivers and I/O
MSB
D14
D13
______________________________________________________________________________________
µC
Expanders with PWM Intensity Control
D12
MOSI
SCLK
CS3
CS2
CS1
ADDRESS
Serial Interface
D11
D10
CS1
DIN
SCLK
MAX6966
MAX6967
D9
LSB
D8
MSB
Controlling the MAX6966/MAX6967 requires sending a
16-bit word. The first byte, D15 through D8, is the com-
mand, and the second byte, D7 through D0, is the data
byte
Multiple MAX6966/MAX6967s can be interfaced to a
common SPI bus by connecting DIN inputs together,
connecting SCLK inputs together, and providing an
individual CS per MAX6966/MAX6967 device
8). This connection works regardless of the configura-
tion of DOUT/OSC, but does not allow the MAX6966/
MAX6967s to be read.
D7
Connecting Multiple MAX6966/MAX6967s
CS2
DIN
SCLK
Control and Operation Using the 4-Wire
(Table
D6
MAX6966
MAX6967
11).
D5
D4
DATA
CS3
DIN
SCLK
D3
to the 4-Wire Bus
MAX6966
MAX6967
D2
D1
Interface
(Figure
LSB
D0
21