MAX5904 Ver la hoja de datos (PDF) - Maxim Integrated
Número de pieza
componentes Descripción
Fabricante
MAX5904 Datasheet PDF : 24 Pages
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Low-Voltage, Dual Hot-Swap Controllers/Power
Sequencers
Typical Operating Characteristics (continued)
(Typical Operating Circuits, Q1 = Q2 = Fairchild FDB7090L, VIN1 = +5V, VIN2 = +3.3V, TA = +25°C, unless otherwise noted. Channels
1 and 2 are identical in performance. Where characteristics are interchangeable, channels 1 and 2 are referred to as X and Y.)
GATE STRONG DISCHARGE CURRENT
vs. TEMPERATURE
6
TURN-OFF TIME vs. SENSE VOLTAGE
10
TURN-OFF TIME vs. SENSE VOLTAGE
(EXPANDED SCALE)
10
5
VINX = 13.2V
4
VINX = 5V
3
VON = 0V
VINY = 2.7V
2
VGATEX = VINX + 6.2V
VINX = 1V
1
1
0.1
0.01
0.001
SLOW-COMP. THRESHOLD
FAST-COMP. THRESHOLD
SLOW-COMP. THRESHOLD
1
0
-40 -15
10
35
60
85
TEMPERATURE (°C)
SLOW-COMPARATOR THRESHOLD
vs. RLIM
120
0.0001
0
25 50 75 100 125 150 175 200
VIN - VSENSE (mV)
STARTUP PERIOD vs. RTIM
60
0.1
20 25 30 35 40 45 50 55 60 65 70 75 80
VIN - VSENSE (mV)
TURN-OFF TIME
SLOW-COMPARATOR FAULT
MAX5904 toc15
100
80
60
40
20
0
0
50
0V
tSCD
40
0V
26mV STEP
30
20
10
0V
100
200
300
400
RLIM (kΩ)
0
0 100 200 300 400 500 600
RTIM (kΩ)
1ms/div
VIN = 5.0V
TURN-OFF TIME
FAST-COMPARATOR FAULT
MAX5904 toc16
0V
tFCD
0V
125mV STEP
0V
VPGOOD
5V/div
VSENSE - VIN
100mV/div
VGATE
5V/div
STARTUP WAVEFORMS
FAST TURN-ON
MAX5904 toc17
VON
2V/div
VPGOOD
2V/div
IOUT
5A/div
VOUT
5V/div
VGATE
5V/div
VPGOOD
5V/div
VSENSE - VIN
100mV/div
VGATE
5V/div
400ns/div
VIN = 5.0V
1ms/div
VIN = 5.0V, RSENSE = 10mΩ,
RTIM = 27kΩ, CBOARD = 1000µF
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