MAX16805ATP+ Maxim Integrated Products, MAX16805ATP+ Datasheet - Page 13

• Manufacturer Part Number: MAX16805ATP+
• Description: IC LED DRIVR HIGH BRIGHT 20-TQFN
• Manufacturer: Maxim Integrated Products
• Type: HBLED Driverr

Specifications of MAX16805ATP+

• Constant Current: Yes
• Topology: PWM
• Number Of Outputs: 1
• Internal Driver: Yes
• Type - Primary: Automotive
• Type - Secondary: High Brightness LED (HBLED)
• Frequency: 400kHz
• Voltage - Supply: 5.5 V ~ 40 V
• Voltage - Output: 5.1V
• Mounting Type: Surface Mount
• Package / Case: 20-TQFN Exposed Pad
• Operating Temperature: -40°C ~ 125°C
• Current - Output / Channel: 350mA
• Internal Switch(s): Yes
• High Level Output Current: 350 mA
• Operating Supply Voltage: 5.5 V to 40 V
• Maximum Power Dissipation: 2758.6 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

Write to the MAX16805/MAX16806 by transmitting the
device’s slave address with R/W, 8th bit set to zero fol-
lowed by at least 1 byte of information
first byte of information is the command byte. The bytes
received after the command byte are the data bytes.
The first data byte goes into the internal register as
selected by the command byte
more than one data byte, the MAX16805/MAX16806
auto-increment to the next register address locations to
write the subsequent data bytes. The MAX16805/
MAX16806 auto-increment up to the register address
0x05, EEPROM Content Transfer register.
A read operation is performed as follows:
Figure
Figure
S
After the START condition (S), a 7-bit slave ID is sent
followed by an 8th bit (R/W) set to zero. A register
address is then sent to specify the address location
from which the read has to take place. To complete a
read operation, the master needs to generate a repeat-
ed START (Sr) followed by the 7-bit slave ID but with
the 8th bit (R/W) set to "1" this time indicating a read
operation. On the other hand, a read operation can be
performed by sending in the 7-bit slave ID followed by
EEPROM-Programmable, High-Voltage, 350mA
7. Command Byte Received
8. Command and a Single Data Byte Received
S
SLAVE ADDRESS
______________________________________________________________________________________
LED Drivers with LED Current Foldback
ACKNOWLEDGE FROM
MAX16805/MAX16806
SLAVE ADDRESS
RW
(Figure
Message Format
0
ACKNOWLEDGE FROM
MAX16805/MAX16806
A
(Figure
8). If there is
RW
7). The
0
COMMAND BYTE
A
ACKNOWLEDGE FROM
MAX16805/MAX16806
Table
Binning Adjustment
Ramp Peak
LED Current Foldback
Threshold (LED_CFT)
Thermal Foldback Knee Point
Thermal Foldback Slope
Gain
Thermal Foldback Clamp
Level
EEPROM Content Transfer
EEPROM Program Enable
Password Register
an 8th bit (R/W) set to "1" if the current address location
happens to be the address location from which data
needs to be read.
REGISTER NAME
2. Registers Address
COMMAND BYTE
A
ACKNOWLEDGE FROM
MAX16805/MAX16806
DATA BYTE
1 BYTE
REGISTER
ADDRESS
ACKNOWLEDGE FROM
0x00
0x01
0x02
0x03
0x04
0x05
0x06
0x08
0xFF
MAX16805/MAX16806
A
NO. OF BITS/
REGISTER
P
—
—
—
4
4
4
2
3
3
A
P
13