MAX16816ATJ+T Maxim Integrated Products, MAX16816ATJ+T Datasheet - Page 27

• Manufacturer Part Number: MAX16816ATJ+T
• Description: IC LED DRIVR HIGH BRIGHT 32-TQFN
• Manufacturer: Maxim Integrated Products
• Type: HBLED Driverr

Specifications of MAX16816ATJ+T

• Topology: PWM, SEPIC, Step-Down (Buck), Step-Up (Boost)
• Number Of Outputs: 1
• Internal Driver: Yes
• Type - Primary: Automotive
• Type - Secondary: High Brightness LED (HBLED)
• Frequency: 125kHz ~ 500kHz
• Voltage - Supply: 5.5 V ~ 76 V
• Mounting Type: Surface Mount
• Package / Case: 32-TQFN Exposed Pad
• Operating Temperature: -40°C ~ 125°C
• Internal Switch(s): Yes
• Efficiency: 90%
• Low Level Output Current: 76 mA
• High Level Output Current: 67 mA
• Operating Supply Voltage: 5.5 V to 76 V
• Maximum Supply Current: 4.5 mA
• Maximum Power Dissipation: 2758 mW
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -
• Current - Output / Channel: -
• Lead Free Status / Rohs Status: Details

There are two types of write time slots: Write-1 time
slots and Write-0 time slots. The bus master uses a
Write-1 time slot to write a logic ‘1’ to the MAX16816
and a Write-0 time slot to write a logic ‘0’. All write time
slots must be a minimum of 60µs in duration with a min-
imum of a 1µs recovery time between individual Write
slots. Both types of write time slots are initiated by the
master pulling the 1-Wire bus low (Figures 7 and 8).
To generate a Write-1 time slot, the bus master must
release the 1-Wire bus within 15µs after pulling the bus
Figure 7. 1-Wire Write-1 Time Slot
Figure 8. 1-Wire Write-0 Time Slot
V
V
V
V
OH
0V
OH
0V
IL
OL
______________________________________________________________________________________
Programmable Switch-Mode LED Driver
with Analog-Controlled PWM Dimming
RESISTOR
RESISTOR
t
W1L
Write Time Slots
t
W0L
SAMPLING
MAX16816
WINDOW
t
t
SLOT
MASTER
SLOT
MASTER
low. When the bus is released, the pullup resistor will
pull the bus high. To generate a Write-0 time slot, the
bus master must continue to hold the bus low for the
duration of the time slot (at least 60µs) after pulling the
1-Wire bus low. The MAX16816 samples the 1-Wire bus
during a window that lasts from 15µs to 60µs after the
master initiates the Write time slot. If the bus is high
during the samples window, a ‘1’ is written to the
MAX16816. If the line is low, a ‘0’ is written to the
MAX16816.
MAX16816
SAMPLING
WINDOW
t
REC
t
REC
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