MAX6964ATG+ Maxim Integrated Products, MAX6964ATG+ Datasheet - Page 8

• Manufacturer Part Number: MAX6964ATG+
• Description: IC LED DRIVER LINEAR 24-TQFN
• Manufacturer: Maxim Integrated Products
• Type: Linear (I²C Interface)r

Specifications of MAX6964ATG+

• Topology: Open Drain, PWM
• Number Of Outputs: 17
• Internal Driver: Yes
• Type - Primary: Backlight, LED Blinker
• Type - Secondary: RGB, White LED
• Frequency: 400kHz
• Voltage - Supply: 2 V ~ 3.6 V
• Voltage - Output: 7V
• Mounting Type: Surface Mount
• Package / Case: 24-TQFN Exposed Pad
• Operating Temperature: -40°C ~ 125°C
• Current - Output / Channel: 50mA
• Internal Switch(s): Yes
• Number Of Segments: 12
• Low Level Output Current: 50 mA
• Operating Supply Voltage: 2 V to 3.6 V
• Maximum Supply Current: 122.1 uA
• Maximum Power Dissipation: 1666 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: Details

during the high period of the clock pulse. When the
master is transmitting to the MAX6964, the device gen-
erates the acknowledge bit because the MAX6964 is
the recipient. When the MAX6964 is transmitting to the
master, the master generates the acknowledge bit
because the master is the recipient.
The MAX6964 has a 7-bit long slave address (Figure 6).
The eighth bit following the 7-bit slave address is the
R/W bit. The R/W bit is low for a write command, high
for a read command.
The second (A5), third (A4), fourth (A3), sixth (A1), and
last (A0) bits of the MAX6964 slave address are always
1, 0, 0, 0, and 0. Slave address bits A6 and A2 are
selected by the address input AD0. AD0 can be con-
nected to GND, V+, SDA, or SCL. The MAX6964 has
17-Output LED Driver/GPO with
Intensity Control and Hot-Insertion Protection
Table 1. MAX6964 Address Map
Table 2. Register Address Map
8
PIN AD0
_______________________________________________________________________________________
GND
SDA
SCL
V+
Master and global/O16 intensity
Blink phase 0 outputs O15–O8
Blink phase 1 outputs O15–O8
Blink phase 0 outputs O7–O0
Blink phase 1 outputs O7–O0
Outputs intensity O11, O10
Outputs intensity O13, O12
Outputs intensity O15, O14
Outputs intensity O1, O0
Outputs intensity O3, O2
Outputs intensity O5, O4
Outputs intensity O7, O6
Outputs intensity O9, O8
Configuration
REGISTER
User RAM0
User RAM1
A6
1
1
0
0
A5
1
1
1
1
Slave Address
A4
0
0
0
0
ADDRESS CODE
DEVICE ADDRESS
(hex)
0x02
0x03
0x06
0x07
0x0A
0x0B
0x0E
0x0F
0x10
0x11
0x12
0x13
0x14
0x15
0x16
0x17
four possible slave addresses (Table 1), and therefore
a maximum of four MAX6964 devices can be controlled
independently from the same interface.
A write to the MAX6964 comprises the transmission of
the MAX6964’s slave address with the R/W bit set to
zero, followed by at least 1 byte of information. The first
byte of information is the command byte. The command
byte determines which register of the MAX6964 is to be
written to by the next byte, if received (Table 2). If a
STOP condition is detected after the command byte is
received, then the MAX6964 takes no further action
beyond storing the command byte.
Any bytes received after the command byte are data
bytes. The first data byte goes into the internal register of
the MAX6964 selected by the command byte (Figure 8).
A3
0
0
0
0
Message Format for Writing the MAX6964
A2
0
1
0
1
AUTOINCREMENT
A1
0
0
0
0
ADDRESS
0x0B
0x0A
0x03
0x02
0x07
0x06
0x11
0x12
0x13
0x14
0x15
0x16
0x17
0x10
—
—
A0
0
0
0
0