Typical operating characteristics (continued) – Rainbow Electronics MAX16832C User Manual
Page 4
MAX16832A/MAX16832C
2MHz, High-Brightness LED Drivers with
Integrated MOSFET and High-Side Current Sense
4
_______________________________________________________________________________________
NORMALIZED I
LED
CURRENT
vs. INPUT VOLTAGE
MAX16832A toc04
V
IN
(V)
NORMALIZED I
LED
CURRENT
60
55
50
45
40
35
30
25
20
15
10
5
0
65
0.96
0.97
0.98
0.99
1.00
1.01
1.02
1.03
1.04
1.05
0.95
1 LED 3 LEDs 5 LEDs
7 LEDs 9 LEDs
11 LEDs
13 LEDs
15 LEDs
QUIESCENT CURRENT
vs. INPUT VOLTAGE
MAX16832A toc05
V
IN
(V)
QUIESCENT CURRENT (
μ
A)
60
55
45 50
15 20 25 30 35 40
5 10
50
100
150
200
250
300
350
400
450
500
0
0
65
V
DIM
= 0V
PWM DIMMING
AT 200Hz (10% DUTY CYCLE)
MAX16832A toc06
1ms/div
I
LED
200mA/div
0
0
V
DIM
5V/div
V
IN
= 48V
8 LEDs
PWM DIMMING
AT 200Hz (90% DUTY CYCLE )
MAX16822A toc07
1ms/div
I
LED
200mA/div
V
DIM
5V/div
0
0
V
IN
= 48V
8 LEDs
PWM DIMMING
AT 20kHz (90% DUTY CYCLE)
MAX16832A toc08
10
μs/div
I
LED
200mA/div
V
DIM
5V/div
0
0
V
IN
= 48V
8 LEDs
LED CURRENT
vs. V
TEMP_I
MAX16832A toc09
V
TEMP_I
(V)
LED CURRENT (mA)
2.4
2.0
1.2
1.6
0.8
0.4
500
450
400
350
300
250
200
150
100
50
650
550
600
750
700
800
0
0
2.8
I
LED
vs. TEMPERATURE
MAX16832A toc10
TEMPERATURE (
°C)
I
LED
(A)
110
95
80
65
50
35
20
5
-10
-25
-40
125
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
0
V
IN
= 48V
Typical Operating Characteristics (continued)
((V
IN
= V
DIM
= 48V, R
SENSE
= 0.3Ω, L = 220µH (connected between IN and CS). Typical values are at T
A
= +25°C, unless otherwise
noted.)