MAX16822AASA+T Maxim Integrated Products, MAX16822AASA+T Datasheet - Page 4
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MAX16822AASA+T
Manufacturer Part Number
MAX16822AASA+T
Description
IC LED DRIVER HIGH BRIGHT 8-SOIC
Manufacturer
Maxim Integrated Products
Type
HBLED Driverr
Datasheet
1.MAX16822AASA.pdf
(10 pages)
Specifications of MAX16822AASA+T
Constant Current
Yes
Topology
PWM, Step-Down (Buck)
Number Of Outputs
1
Internal Driver
Yes
Type - Primary
Automotive
Type - Secondary
High Brightness LED (HBLED)
Frequency
2MHz
Voltage - Supply
6.5 V ~ 65 V
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Operating Temperature
-40°C ~ 125°C
Current - Output / Channel
350mA
Internal Switch(s)
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Voltage - Output
-
Efficiency
-
Lead Free Status / Rohs Status
Details
2MHz, High-Brightness LED Drivers with
Integrated MOSFET and High-Side Current Sense
(V
unless otherwise noted.)
4
IN
0.950
1.10
1.05
1.00
0.90
_______________________________________________________________________________________
= V
0
DIM
5
= 48V, C
10
5 LEDs 7 LEDs
500
450
400
350
300
250
200
150
100
3 LEDs
1 LED
15
50
0
NORMALIZED I
20
0
25
VCC
vs. V
0.4
AT 200Hz DUTY CYCLE (90%)
9 LEDs 11 LEDs 13 LEDs
V
30
IN
(V)
35
= 1µF, R
IN
0.8
40
PWM DIMMING
LED CURRENT
LED
vs. V
45
V
1.2
TEMP_I
1ms/div
50
TEMP_I
SENSE
15 LEDs
55
1.6
(V)
60
65
2.0
= 0.62Ω, L = 220µH (connected between IN and CS). Typical values are at T
MAX16822A toc07
V
8 LEDs
IN
2.4
= 48V
Typical Operating Characteristics (continued)
500
450
400
350
300
250
200
150
100
50
2.8
0
I
200mA/div
0
V
5V/div
0
LED
DIM
0
5 10
15 20 25 30 35 40
QUIESCENT CURRENT
vs. V
V
IN
(V)
IN
45 50
V
0.5
0.4
0.3
0.2
0.1
DIM
0
55
-40
= 0V
60
V
-25
IN
65
= 48V
AT 20kHz DUTY CYCLE (90%)
-10
vs. TEMPERATURE
5
PWM DIMMING
TEMPERATURE (°C)
20
AT 200Hz DUTY CYCLE (10%)
10μs/div
35
I
LED
50
PWM DIMMING
65
80
1ms/div
MAX16822A toc08
95
110
125
I
200mA/div
0
V
5V/div
0
LED
MAX16822A toc06
V
8 LEDs
DIM
A
IN
= 48V
= +25°C,
I
200mA/div
V
5V/div
0
0
LED
DIM