MAX16814BEUP+ Maxim Integrated Products, MAX16814BEUP+ Datasheet - Page 7

• Manufacturer Part Number: MAX16814BEUP+
• Description: LED Drivers Integrated 4-Channel High-Brightness LED
• Manufacturer: Maxim Integrated Products

Specifications of MAX16814BEUP+

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

(V
V
LEDGND
IN
100
0.1
10
1
= V
-50
EN
V
V
DIM
OUT
= V
-25
= 12V, f
= 0V
= 40V
OUT_ LEAKAGE CURRENT
Integrated, 4-Channel, High-Brightness LED
DIM
vs. TEMPERATURE
0
TEMPERATURE (NC)
Driver with High-Voltage DC-DC Controller
= V
160
140
120
100
SW
80
60
40
20
_______________________________________________________________________________________
25
0.010
PGND
= 300kHz, R
LED CURRENT SWITCHING WITH DIM
50
AT 5kHz AND 50% DUTY CYCLE
0.025
= V
OUT_ CURRENT vs. 1/R
75
SGND
0.040
100
1/R
SETI
100Fs/div
= 0V, load = 4 strings of 7 white LEDs, T
SETI
0.055
125
(mS)
= 15kI, C
0.070
SETI
FIGURE 2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.085
MAX16814 toc16
Typical Operating Characteristics (continued)
0
-50
VCC
V
0.100
OVP
-25
= 1FF, V
= 1.25V
I
100mA/div
0A
I
100mA/div
0A
I
100mA/div
0A
I
100mA/div
0A
OUT1
OUT2
OUT3
OUT4
OVP LEAKAGE CURRENT
vs. TEMPERATURE
0
TEMPERATURE (NC)
CC
25
= V
1.0
0.8
0.6
0.4
0.2
50
0
DRV
-50
LED CURRENT RISING AND FALLING
V
75
DIM
, NDRV = COMP = OUT_ = unconnected, V
-25
A
= 0V
COMP LEAKAGE CURRENT
100
= +25NC, unless otherwise noted.)
vs. TEMPERATURE
0
TEMPERATURE (NC)
125
WAVEFORM
25
4Fs/div
V
COMP
V
COMP
50
250
200
150
100
50
= 4.5V
= 0.5V
75
-50
FIGURE 2
MAX16814 toc17
100
-25
RSDT LEAKAGE CURRENT
125
vs. TEMPERATURE
0
TEMPERATURE (NC)
V
5V/div
0V
I
50mA/div
0A
LED
DIM
V
V
25
RSDT
RSDT
= 0.5V
= 2.5V
50
75
OVP
100
= V
CS
125
7
=