MAX16825AUE+ Maxim Integrated Products, MAX16825AUE+ Datasheet - Page 10

• Manufacturer Part Number: MAX16825AUE+
• Description: IC LED DRVR HIGH BRIGHT 16-TSSOP
• Manufacturer: Maxim Integrated Products
• Type: HBLED Driverr

Specifications of MAX16825AUE+

• Constant Current: Yes
• Topology: Linear, Open Drain, PWM
• Number Of Outputs: 3
• Internal Driver: Yes
• Type - Primary: Automotive, Backlight
• Type - Secondary: High Brightness LED (HBLED)
• Voltage - Supply: 6.5 V ~ 28 V
• Voltage - Output: 36V
• Mounting Type: Surface Mount
• Package / Case: 16-TSSOP Exposed Pad, 16-eTSSOP, 16-HTSSOP
• Operating Temperature: -40°C ~ 125°C
• Current - Output / Channel: 150mA
• Internal Switch(s): Yes
• Number Of Segments: 6
• Operating Supply Voltage: 6.5 V to 28 V
• Maximum Power Dissipation: 1500 mW
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Frequency: -
• Efficiency: -
• Lead Free Status / Rohs Status: Details

data. Holding OE low allows the output channels to fol-
low the state of the output latches. The duty cycle
depends on LE’s frequency. All output channels are
affected at the same time.
High-Voltage, Three-Channel Linear
High-Brightness LED Drivers
Figure 3. 4-Wire Serial-Interface Timing Diagram
10
DOUT
OUT_
CLK
DIN
OE
LE
______________________________________________________________________________________
50%
50%
t
DS
DO
t
DH
t
CH
50%
50%
50%
t
CL
t
OEL
D1
Another method of pulse dimming the outputs is to hold
LE high and drive OE with a PWM signal. Because the
input bits are always latched, the serial input constantly
refreshes the register. The control bits must be carefully
selected to dim the outputs properly.
t
F
50%
t
OEW
t
DO
50%
t
80%
20%
CP
50%
t
OEH
D2
t
R
50%
t
LS
50%
DO
t
LW
50%