MAX16805ATP+ Maxim Integrated Products, MAX16805ATP+ Datasheet - Page 12

• 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

EEPROM-Programmable, High-Voltage, 350mA
LED Drivers with LED Current Foldback
One data bit is transferred during each clock pulse.
The data on the SDA line must remain stable while SCL
is high
The acknowledge bit is a clocked 9th bit that the recipi-
ent uses to handshake receipt each byte of data
(Figure
requires 9 bits. The master controller generates the 9th
Figure
Figure 5. Acknowledge
Figure
12
SDA
SCL
SDA
SCL
______________________________________________________________________________________
SDA
START
SCL
4. Bit Transfer
6. Slave Address
(Figure
5). Therefore, each byte effectively transferred
DATA STABLE,
DATA VALID
4).
START
CHANGE OF DATA
MSB
A7
1
ALLOWED
2
A6
1
Acknowledge
Bit Transfer
3
A5
2
4
A4
clock pulse, and the recipient pulls down SDA during
the acknowledge clock pulse, so the SDA line remains
stable low during the high period of the clock pulse.
The MAX16805/MAX16806 have a 7-bit-long slave
address
bit slave address is the R/W bit. Set the R/W bit low for
a write command and high for a read command.
Table
5
A3
WRITE ADDRESS (HEX)
1. Slave Address
(Figure
6
A2
0xEE
NOT ACKNOWLEDGE
8
ACKNOWLEDGE
6,
Table
7
A1
1). The 8th bit following the 7-
8
RW
9
READ ADDRESS (HEX)
Slave Address
0xEF
ACK
9