max5905 Maxim Integrated Products, Inc., max5905 Datasheet - Page 7

• Manufacturer Part Number: max5905
• Description: Low-voltage, Dual Hot-swap Controllers/power Sequencers
• Manufacturer: Maxim Integrated Products, Inc.

(Typical Operating Circuits, Q1 = Q2 = Fairchild FDB7090L, V
1 and 2 are identical in performance. Where characteristics are interchangeable, channels 1 and 2 are referred to as X and Y.)
Low-Voltage, Dual Hot-Swap Controllers/Power
120
100
80
60
40
20
6
5
4
3
2
1
0
0
-40
0
GATE STRONG DISCHARGE CURRENT
SLOW-COMPARATOR THRESHOLD
-15
V
INX
100
vs. TEMPERATURE
= 1V
TEMPERATURE (°C)
V
INX
10
vs. R
R
= 5V
_______________________________________________________________________________________
LIM
200
0V
0V
0V
(kΩ)
LIM
V
GATEX
35
V
= V
INX
300
FAST-COMPARATOR FAULT
V
125mV STEP
INY
INX
V
60
= 13.2V
ON
= 2.7V
+ 6.2V
= 0V
TURN-OFF TIME
t
FCD
400
V
85
400ns/div
IN
= 5.0V
0.0001
0.001
0.01
60
50
40
30
20
10
0.1
Typical Operating Characteristics (continued)
10
0
1
0
0
MAX5904 toc16
TURN-OFF TIME vs. SENSE VOLTAGE
25
100
STARTUP PERIOD vs. R
50
V
5V/div
V
100mV/div
V
5V/div
PGOOD
SENSE
GATE
SLOW-COMP. THRESHOLD
200
IN1
V
75
IN
- V
R
= +5V, V
- V
TIM
FAST-COMP. THRESHOLD
IN
300
SENSE
100 125 150 175 200
(kΩ)
(mV)
400
IN2
TIM
= +3.3V, T
500
R
600
STARTUP WAVEFORMS
TIM
V
IN
= 27kΩ, C
= 5.0V, R
FAST TURN-ON
A
= +25°C, unless otherwise noted. Channels
1ms/div
0.1
10
0V
0V
0V
SENSE
BOARD
1
20
TURN-OFF TIME vs. SENSE VOLTAGE
= 10mΩ,
25
= 1000µF
Sequencers
30 35
SLOW-COMPARATOR FAULT
26mV STEP
MAX5904 toc17
(EXPANDED SCALE)
SLOW-COMP. THRESHOLD
TURN-OFF TIME
40 45 50 55 60 65 70 75 80
V
t
SCD
IN
- V
V
1ms/div
IN
SENSE
V
2V/div
V
2V/div
I
5A/div
V
5V/div
V
5V/div
OUT
= 5.0V
ON
PGOOD
OUT
GATE
(mV)
MAX5904 toc15
V
5V/div
V
100mV/div
V
5V/div
PGOOD
SENSE
GATE
7
- V
IN