MAX16803ATE+ Maxim Integrated Products, MAX16803ATE+ Datasheet - Page 7
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MAX16803ATE+
Manufacturer Part Number
MAX16803ATE+
Description
IC LED DRIVR HIGH BRIGHT 16-TQFN
Manufacturer
Maxim Integrated Products
Type
HBLED Driverr
Datasheet
1.MAX16803ATET.pdf
(11 pages)
Specifications of MAX16803ATE+
Topology
PWM
Number Of Outputs
1
Internal Driver
Yes
Type - Primary
Automotive
Type - Secondary
High Brightness LED (HBLED)
Voltage - Supply
6.5 V ~ 40 V
Voltage - Output
5.27V
Mounting Type
Surface Mount
Package / Case
16-TQFN Exposed Pad
Operating Temperature
-40°C ~ 125°C
Current - Output / Channel
350mA
Internal Switch(s)
Yes
Low Level Output Current
35 mA
High Level Output Current
350 mA
Operating Supply Voltage
6.5 V to 40 V
Maximum Supply Current
1.4 mA
Maximum Power Dissipation
2666.7 mW
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
For Use With
MAX16803EVKIT+ - EVAL KIT FOR MAX16803
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Frequency
-
Efficiency
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
For proper operation, the minimum input voltage must
always be:
where V
connected LEDs. The minimum operating voltage of the
device is +6.5V. The device operates below +6.5V; how-
ever, output current may not meet the full regulation
specification (see the Typical Operating Characteristics ).
The MAX16803 provides pulsed or chopped current
dimming input (DIM). The other method is to connect
DIM to V5 and EN to IN and pulse EN. Both methods
generate a regulated-amplitude PWM current (variable
duty cycle) that can provide control over the LED
brightness (see Figures 1 and 2).
Figure 1. Dimming with EN Connected to V
Voltage and DIM Pulsed
Figure 2. Dimming with DIM Connected to V5, EN Connected
to V
Low-Frequency PWM Dimming at the Output
V
V
DIM
C1
V
IN
IN
V
IN
IN(MIN)
C1
FT(MAX)
Driver with PWM Dimming and 5V Regulator
≥ V
High-Voltage, 350mA, High-Brightness LED
1
2
3
4
1
2
3
4
RSENSE(MAX)
OUT
IN
IN
N.C.
OUT
IN
IN
N.C.
is the total forward voltage of all series
OUT
N.C.
OUT
N.C.
Input-Voltage Considerations
16
16
5
_______________________________________________________________________________________
5
MAX16803
MAX16803
N.C.
N.C.
15
EN
15
EN
6
6
N.C.
N.C.
N.C.
N.C.
14
14
7
7
+ V
FT(MAX)
DIM
N.C.
DIM
N.C.
13
13
8
8
GND
GND
CS+
CS-
CS+
CS-
V5
V5
IN
12
11
10
12
11
10
9
9
+ ∆V
at a Constant
DO(MAX)
C2
C2
D1
D1
R
R
SENSE
SENSE
I
LED
I
LED
For applications that require more than 350mA of LED
current, two or more MAX16803s can be paralleled
(see Figure 3). V
Figure 3. Paralleling MAX16803s
V5
Paralleling Multiple MAX16803s to Drive
V5
V5
C1
C3
EN
DIM
IN
GND
IN
EN
DIM
GND
CS
MAX16803
MAX16803
- should not exceed 4.1V.
OUT
CS+
OUT
CS-
CS+
CS-
V5
V5
One High-Power LED
C2
C4
R1
R2
LEDs
7