Typical operating characteristics (continued) – Rainbow Electronics MAX15034 User Manual
Page 7
MAX15034
Configurable, Single-/Dual-Output, Synchronous
Buck Controller for High-Current Applications
TURN-ON/TURN-OFF WAVEFORM
MAX15034 toc15
1ms/div
V
OUT1
1V/div
EN1
5V/div
EN2
5V/div
V
OUT2
1V/div
_______________________________________________________________________________________
7
OUT1/OUT2 OUT-OF-PHASE WAVEFORMS
(V
OUT1
= 0.8V, V
OUT2
= 1.3V)
MAX15034 toc14
OUT1
100mV/div
10
μs/div
OUT2
100mV/div
LX2
10V/div
LX1
10V/div
Typical Operating Characteristics (continued)
(Circuit of Figure 6, T
A
= +25°C, unless otherwise noted. V
IN
= 12V, V
OUT1
= 0.8V, V
OUT2
= 1.3V, f
SW
= 500kHz per phase.)
SHORT-CIRCUIT CURRENT WAVEFORMS
(V
IN
= 5V)
MAX15034 toc16
200ms/div
I
OUT2
10A/div
I
OUT1
10A/div
AVERAGE CURRENT LIMIT
vs. V
AVGLIMIT
MAX15034 toc17
V
AVGLIMIT
(V)
AVERAGE CURRENT LIMIT (mV)
15
30
45
60
75
0
2.5
2.0
1.5
1.0
0.5
0
3.0
INTERNAL REFERENCE VOLTAGE
vs. TEMPERATURE
MAX15034 toc18
TEMPERATURE (
°C)
INTERNAL REFERENCE VOLTAGE (V)
110
95
80
65
50
35
20
5
-10
-25
0.610
0.615
0.620
0.605
-40
125
SWITCHING FREQUENCY
vs. TEMPERATURE
MAX15034 toc19
TEMPERATURE (
°C)
SWITCHING FREQUENCY (kHz) 475
500
525
550
450
110
95
80
65
50
35
20
5
-10
-25
-40
125