Typical operating characteristics (continued) – Rainbow Electronics MAX15054 User Manual
Page 5
High-Side MOSFET Driver for HB LED Drivers
and DC-DC Applications
MAX15054
_______________________________________________________________________________________ 5
Typical Operating Characteristics (continued)
(V
DD
= V
BST
= 5V, V
LX
= V
GND
= 0V, T
A
= +25°C, unless otherwise noted.)
2MHz OPERATION
MAX15054 toc08
0V
0V
HDRV
2V/div
HI
2V/div
200ns/div
NO LOAD ON HDRV
HDRV OUTPUT HIGH/LOW
vs. TEMPERATURE
MAX15054 toc09
TEMPERATURE (NC)
OUTPUT HIGH/LOW (V)
110
95
80
65
50
35
20
5
-10
-25
20
40
60
80
100
120
140
0
-40
125
V
BST -
V
HDRV
SOURCING 100mA
V
HDRV -
V
LX
SINKING 100mA
OUTPUT HIGH = V
BST -
V
HDRV
OUTPUT LOW = V
HDRV -
V
LX
4% DUTY CYCLE AT 2MHz
MAX15054 toc10
10ns/div
HI
2V/div
0V
0V
HDRV
2V/div
96% DUTY CYCLE AT 2MHz
MAX15054 toc11
2V/div
2V/div
10ns/div
TURN-ON/TURN-OFF PROPAGATION
DELAY vs. TEMPERATURE
MAX15054 toc12
TEMPERATURE (
°C)
PROPAGATION DELAY (ns)
110
95
65 80
-10 5 20 35 50
-25
8.5
9.0
9.5
10.0
10.5
11.0
11.5
12.0
12.5
13.0
8.0
-40
125
t
D
_
ON
t
D
_
OFF
RISE TIME AND FALL TIME
MAX15054 toc13
0V
0V
2V/div
2V/div
20ns/div
HI
HDRV
HDRV
4.7nF CAPACITOR
CONNECTED FROM
HDRV TO GND,
LX = GND
HI
TURN-ON AND TURN-OFF
PROPAGATION DELAY
MAX15054 toc14
0V
1V/div
40ns/div
1nF CAPACITOR CONNECTED
FROM HDRV TO GND,
LX = GND
HI
HDRV