Rainbow Electronics MAX15001 - Manual (Page 5)

MAX15000/MAX15001
Current-Mode PWM Controllers with
Programmable Switching Frequency
_______________________________________________________________________________________ 5
UVLO/EN SHUTDOWN THRESHOLD
vs. TEMPERATURE
MAX15000 toc04
TEMPERATURE ( °C)
V
UVLO/EN
(V)
60 35 10 -15
1.155
1.160
1.165
1.170
1.175
1.180
1.150
-40 85
UVLO/EN FALLING
V IN SUPPLY CURRENT IN UVLO
vs. TEMPERATURE
MAX15000 toc05
TEMPERATURE ( °C)
I START
(µ
A)
60 35 10 -15
50
55
60
65
45
-40 85
V IN = 19V
MAX15000 WHEN IN
BOOTSTRAP UVLO
V IN SUPPLY CURRENT AFTER
STARTUP vs. TEMPERATURE
MAX15000 toc06
TEMPERATURE ( °C)
I IN
(mA)
60 35 10 -15
1.6
1.7
1.8
1.9
2.0
1.5
-40 85
V IN = 24V
f SW = 350kHz
V
CC
REGULATOR SET POINT
vs. TEMPERATURE
MAX15000 toc07
TEMPERATURE ( °C)
V
CC
(V)
60 35 10 -15
9.2
9.4
9.6
9.8
9.0
-40 85
V IN = 19V
NDRV NOT SWITCHING
NDRV SWITCHING
f SW = 350kHz
V CC REGULATOR SET POINT
vs. TEMPERATURE
MAX15000 toc08
TEMPERATURE ( °C)
V
CC
(V)
60 40 -20 0 20
8.2
8.3
8.4
8.5
8.6
8.7
8.8
8.9
8.1
-40 80
10mA LOAD
V IN = 19V
20mA LOAD
CURRENT-LIMIT TRIP THRESHOLD
vs. TEMPERATURE
MAX15000 toc09
TEMPERATURE ( °C)
CURRENT-LIMIT TRIP THRESHOLD (V)
60 35 10 -15
0.97
0.98
0.99
1.00
1.01
1.02
0.96
-40 85
-3 σ
MEAN
+3 σ
TOTAL NUMBER OF DEVICES = 140
CURRENT-LIMIT TRIP THRESHOLD
MAX15000 toc10
CURRENT-LIMIT TRIP THRESHOLD (V)
PERCENTAGE OF UNITS (%)
1.022 0.993 1.007 0.978
10
20
30
40
50
60
0
0.964 1.036
TOTAL NUMBER
OF DEVICES = 140
SWITCHING FREQUENCY
vs. TEMPERATURE
MAX15000 toc11
TEMPERATURE ( °C)
SWITCHING FREQUENCY (kHz)
60 35 10 -15
330
335
340
345
350
355
325
-40 85
-3 σ
MEAN
+3 σ
TOTAL NUMBER OF DEVICES = 140
SWITCHING FREQUENCY
MAX15000 toc12
SWITCHING FREQUENCY (kHz)
PERCENTAGE OF UNITS (%)
354.0 340.3 347.2 333.5
10
20
30
40
50
60
0
326.7 360.8
TOTAL NUMBER
OF DEVICES = 140
Typical Operating Characteristics (continued)
(V UVLO/EN = +1.4V, V
FB
= +1V, COMP = open, V
CS
= 0V, T
A
= +25°C, unless otherwise noted.)