Typical operating characteristics – Rainbow Electronics MAX5069 User Manual
Page 5
MAX5069
High-Frequency, Current-Mode PWM Controller
with Accurate Oscillator and Dual FET Drivers
_______________________________________________________________________________________
5
21.0
21.2
21.1
21.4
21.3
21.5
21.6
-40
35
60
-15
10
85
110
BOOTSTRAP UVLO WAKE-UP LEVEL
vs. TEMPERATURE
MAX5069 toc01
TEMPERATURE (°C)
V
IN
(V)
MAX5069A/B
9.5
9.6
9.8
9.7
9.9
10.0
-40
35
60
-15
10
85
110
BOOTSTRAP UVLO SHUTDOWN LEVEL
vs. TEMPERATURE
MAX5069 toc02
TEMPERATURE (°C)
V
IN
(V)
MAX5069A/B
1.220
1.225
1.235
1.230
1.240
1.245
-40
35
60
-15
10
85
110
UVLO/EN WAKE-UP THRESHOLD
vs. TEMPERATURE
MAX5069 toc03
TEMPERATURE (°C)
UVLO/EN
(V)
UVLO/EN RISING
1.10
1.19
1.18
1.17
1.16
1.15
1.14
1.13
1.12
1.11
1.20
-40
35
60
-15
10
85
110
UVLO/EN SHUTDOWN THRESHOLD
vs. TEMPERATURE
MAX5069 toc04
TEMPERATURE (°C)
UVLO/EN
(V)
UVLO/EN FALLING
40
44
52
48
56
60
-40
35
60
-15
10
85
110
V
IN
SUPPLY CURRENT IN UNDERVOLTAGE
LOCKOUT vs. TEMPERATURE
MAX5069 toc05
TEMPERATURE (°C)
I
START
(µ
A)
V
IN
= 19V
WHEN IN BOOTSTRAP UVLO (MAX5069A/B)
UVLO/EN (MAX5069C/D) IS LOW
VIN SUPPLY CURRENT AFTER STARTUP
vs. TEMPERATURE
MAX5069 toc06
TEMPERATURE (°C)
I
IN
(mA)
85
60
35
10
-15
3
2
4
6
5
7
8
1
-40
110
V
IN
= 24V
f
SW
= 1.25MHz
f
SW
= 50kHz
f
SW
= 500kHz
f
SW
= 100kHz
f
SW
= 250kHz
V
CC
vs. TEMPERATURE
MAX5069 toc07
TEMPERATURE (°C)
V
CC
(V)
85
60
35
10
-15
7.6
7.3
8.2
7.9
8.8
8.5
9.4
9.1
9.7
10.0
7.0
-40
110
V
IN
= 19V, I
IN
= 25mA
V
IN
= 19V, I
IN
= 10mA
V
IN
= 10.8V, I
IN
= 10mA
V
IN
= 10.8V, I
IN
= 25mA
REG5 OUTPUT VOLTAGE
vs. OUTPUT CURRENT
MAX5069 toc08
OUTPUT CURRENT (mA)
REG5 (V)
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
4.955
4.960
4.965
4.970
4.975
4.980
4.950
0
2.0
R
RT
= 100kΩ
4.90
4.99
4.98
4.97
4.96
4.95
4.94
4.93
4.92
4.91
5.00
-40
35
60
-15
10
85
110
REG5 vs. TEMPERATURE
MAX5069 toc09
TEMPERATURE (°C)
REG5 (V)
V
IN
= 10.8V
100µA LOAD
1mA LOAD
Typical Operating Characteristics
(V
IN
= +23.6V for MAX5069A/B at startup, then reduces to +12V, V
IN
= +12V for the MAX5069C/D, C
IN
= C
REG5
= 0.1µF, C
VCC
= 1µF,
R
RT
= 100kΩ, NDRV_ = floating, V
FB
= 0V, V
COMP
= floating, V
CS
= 0V, T
A
= +25°C, unless otherwise noted.)