Typical operating characteristics – Rainbow Electronics MAX5043 User Manual
Page 7
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7
MAX5042/MAX5043
Two-Switch Power ICs with Integrated
Power MOSFETs and Hot-Swap Controller
HOT-SWAP UNDERVOLTAGE LOCKOUT
THRESHOLD vs. TEMPERATURE
MAX5042 toc01
TEMPERATURE (°C)
HOT-SWAP UNDERVOLTAGE LOCKOUT THRESHOLD (V)
100
75
50
25
0
-25
27
28
29
30
31
32
26
-50
125
V
POSINHS
RISING
V
POSINHS
FALLING
HOT-SWAP STARTUP DELAY
vs. TEMPERATURE
MAX5042 toc02
TEMPERATURE (°C)
HOT-SWAP STARTUP DELAY (ms)
100
75
50
25
0
-25
155
160
165
170
175
150
-50
125
HOT-SWAP GATE VOLTAGE
vs. INPUT VOLTAGE
MAX5042 toc03
INPUT VOLTAGE (V)
HOT-SWAP GATE VOLTAGE (V)
70
60
50
40
30
8.70
8.71
8.72
8.73
8.69
20
80
HOT-SWAP STARTUP WAVEFORM
MAX5042 toc04
OV
OV
V
HSGATE
5V/div
10ms/div
OV
V
HSDRAIN
20V/div
V
HSOK
20V/div
100kΩ
PULLUP
PWM UNDERVOLTAGE LOCKOUT
THRESHOLD vs. TEMPERATURE
MAX5042 toc05
TEMPERATURE (°C)
PWM UVLO THRESHOLD (V)
100
75
50
25
0
-25
27
28
29
30
31
32
26
-50
125
V
POSINPWM
RISING
V
POSINPWM
FALLING
POSINPWM INPUT CURRENT, REG15
INPUT CURRENT vs. TEMPERATURE
MAX5042 toc06
TEMPERATURE (°C)
SUPPLY CURRENT (mA)
100
75
-25
0
25
50
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
2.0
-50
125
I
REG15
, V
POSINPWM
= 76V
I
POSINPWM
, V
POSINPWM
= 76V
V
REG15
= 18V, CSS = 0,
XFRMRH = 0, NO SWITCHING
POSINPWM INPUT CURRENT, REG15
INPUT CURRENT vs. INPUT VOLTAGE
MAX5042 toc07
INPUT VOLTAGE (V)
SUPPLY CURRENT (mA)
70
60
50
40
30
1
2
3
4
5
6
0
20
80
I
REG15
I
POSINPWM
V
REG15
= 18V, CSS = 0,
XFRMRH = 0, NO SWITCHING
OPERATING FREQUENCY
vs. TEMPERATURE
MAX5042 toc08
TEMPERATURE (°C)
OPERATING FREQUENCY (kHz)
100
75
50
25
0
-25
250
270
290
310
330
350
230
-50
125
R
RCOSC
= 25kΩ, C
RCOSC
= 100pF
R
RCOSC
= 19kΩ, C
RCOSC
= 100pF
Typical Operating Characteristics
(V
POSINPWM
= 20V, T
A
= +25°C, unless otherwise noted.)