MAX16823ATE+ Maxim Integrated Products, MAX16823ATE+ Datasheet - Page 10

• Manufacturer Part Number: MAX16823ATE+
• Description: IC LED DRIVR HIGH BRIGHT 16-TQFN
• Manufacturer: Maxim Integrated Products
• Type: HBLED Driverr

Specifications of MAX16823ATE+

• Constant Current: Yes
• Topology: Linear (LDO), Open Drain, PWM
• Number Of Outputs: 3
• Internal Driver: Yes
• Type - Primary: Automotive
• Type - Secondary: High Brightness LED (HBLED), RGB
• Voltage - Supply: 5.5 V ~ 40 V
• Voltage - Output: 3.41V
• Mounting Type: Surface Mount
• Package / Case: 16-TQFN Exposed Pad
• Operating Temperature: -40°C ~ 125°C
• Current - Output / Channel: 100mA
• Internal Switch(s): Yes
• Operating Supply Voltage: 5.5 V to 40 V
• Maximum Power Dissipation: 2666 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: Lead free / RoHS Compliant

High-Voltage, 3-Channel Linear High-Brightness
LED Driver with Open LED Detection
Figure 5. Increased LED Current (Amper Range) with a Single
BJT
Figure 6. Preload Current Setting
10
V
IN
PWM DIMMING
C
______________________________________________________________________________________
IN
STOP
TAIL
R
PRELOAD
IN
DIM_
MAX16823
GND
100kΩ
100kΩ
OUT_
CS_
REG
C
LGC
C
IN
C2
C
REG
R
CS_
Q1
LEDs
IN
IN
IN
DIM1
DIM2
DIM3
LGC
REG
MAX16823
Figure 6 shows the MAX16823 with a preload circuit. In
the circuit, the BJT, R
preset load current. The preset load current I
determined with the following formula:
This circuit is used with older body controllers that
monitor minimum RCL current to detect failures.
GND
OUT1
OUT2
OUT3
CS1
CS2
CS3
I
PRESET
TAIL
R
PRELOAD
=
CS1
V
R
REG
PRELOAD
TAIL
− 0 7 .
R
, and REG generate a
CS2
Preload Current
V
STOP
R
CS3
PRESET
is