MAX16818_09 Datasheet, PDF (6/25 Pages) Maxim Integrated Products – 1.5MHz, 30A High-Efficiency, LED Driver with Rapid LED Current Pulsing

1.5MHz, 30A High-Efficiency, LED Driver
with Rapid LED Current Pulsing
Typical Operating Characteristics (continued)
(T_A = +25°C, using Figure 5, unless otherwise noted.)
HIGH-SIDE DRIVER (DH) RISE TIME
MAX16818 toc10
C_LOAD = 22nF
V_IN = 12V
HIGH-SIDE DRIVER (DH) FALL TIME
MAX16818 toc11
C_LOAD = 22nF
V_IN = 12V
LOW-SIDE DRIVER (DL) RISE TIME
MAX16818 toc12
C_LOAD = 22nF
V_IN = 12V
2V/div
2V/div
2V/div
40ns/div
40ns/div
40ns/div
LOW-SIDE DRIVER (DL) FALL TIME
MAX16818 toc13
C_LOAD = 22nF
V_IN = 12V
FREQUENCY vs. R_T
10,000
V_IN = 12V
2V/div
1000
40ns/div
100
30 110 190 270 350 430 510
70 150 230 310 390 470
R_T (kΩ)
FREQUENCY vs. TEMPERATURE
260
V_IN = 12V
258
256
254
252
250
248
246
244
242
240
-40 -15
10
35
60
85
TEMPERATURE (°C)
SYNC, CLKOUT, AND LX WAVEFORM
MAX16818 toc16
SYNC
5V/div
V_IN = 12V
f_SW = 250kHz
CLKOUT
5V/div
LX
10V/div
1µs/div
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