MAX6965AEE+ Maxim Integrated Products, MAX6965AEE+ Datasheet - Page 8

• Manufacturer Part Number: MAX6965AEE+
• Description: IC LED DRIVER LINEAR 16-QSOP
• Manufacturer: Maxim Integrated Products
• Type: Linear (I²C Interface)r

Specifications of MAX6965AEE+

• Topology: Open Drain, PWM
• Number Of Outputs: 9
• 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: 16-QSOP
• Operating Temperature: -40°C ~ 125°C
• Current - Output / Channel: 50mA
• Internal Switch(s): Yes
• Number Of Segments: 6
• Operating Supply Voltage: 2 V to 3.6 V
• Maximum Supply Current: 110 uA
• Maximum Power Dissipation: 666 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 MAX6965, the device gen-
erates the acknowledge bit because the MAX6965 is
the recipient. When the MAX6965 is transmitting to the
master, the master generates the acknowledge bit
because the master is the recipient.
The MAX6965 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 MAX6965 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 MAX6965 has
four possible slave addresses (Table 1), and therefore
a maximum of four MAX6965 devices can be controlled
independently from the same interface.
9-Output LED Driver with Intensity Control
and Hot-Insertion Protection
Table 1. MAX6965 I
Table 2. Register Address Map
8
PIN AD0
_______________________________________________________________________________________
GND
SDA
SCL
V+
Outputs intensity O1, O0
Outputs intensity O3, O2
Outputs intensity O5, O4
Outputs intensity O7, O6
Blink phase 0 outputs
Blink phase 1 outputs
Master, O8 intensity
Configuration
REGISTER
User RAM
A6
1
1
0
0
2
C Slave Address Map
A5
1
1
1
1
Slave Address
A4
0
0
0
0
ADDRESS CODE
DEVICE ADDRESS
(hex)
0x01
0x03
0x09
0x0E
0x0F
0x10
0x11
0x12
0x13
A write to the MAX6965 comprises the transmission of
the MAX6965’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 MAX6965 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 MAX6965 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 MAX6965 selected by the command byte (Figure 8).
If multiple data bytes are transmitted before a STOP con-
dition is detected, these bytes are generally stored in
subsequent MAX6965 internal registers because the
command byte address autoincrements (Table 2). A
diagram of a write to the output ports registers (blink
phase 0 register or blink phase 1 register) is given in
Figure 10.
A3
0
0
0
0
Message Format for Writing the MAX6965
A2
0
1
0
1
AUTOINCREMENT
0x01 (no change)
0x03 (no change)
0x09 (no change)
0x0E (no change)
0x0F (no change)
A1
0
0
0
0
ADDRESS
0x11
0x12
0x13
0x10
A0
0
0
0
0