Owner manual

MAX5927/MAX5929
Low-Voltage, Quad, Hot-Swap
Controllers/Power Sequencers
6 _______________________________________________________________________________________
TURN-OFF TIME
SLOW-COMPARATOR FAULT
MAX5927toc13
V
STATW
2V/div
V
GATEW
5V/div
V
INW
- V
SENSEW
25mV/div
0V
0V
1ms/div
TURN-OFF TIME
FAST-COMPARATOR FAULT
MAX5927toc14
V
STATW
2V/div
V
GATEW
5V/div
V
INW
- V
SENSEW
100mV/div
0V
0V
0V
100ns/div
STARTUP WAVEFORMS FAST TURN-ON
(C
GATE
= 0nF, C
BOARD
= 1000µF)
MAX5927toc15
V
ONW
5V/div
V
GATEW
10V/div
V
STATW
5V/div
I
INW
2A/div
V
OUTW
10V/div
2ms/div
STARTUP WAVEFORMS SLOW TURN-ON
(C
GATE
= 0.22µF, C
BOARD
= 1000µF)
MAX5927toc16
V
ONW
5V/div
V
GATEW
10V/div
V
STATW
5V/div
I
INW
2A/div
V
OUTW
10V/div
10ms/div
AUTORETRY DELAY (TIME FLOATING)
MAX5927toc17
V
GATEW
2V/div
0V
0V
0V
V
OUTW
2V/div
I
OUTW
500mA/div
100ms/div
TURN-ON IN
VOLTAGE-TRACKING MODE
MAX5927toc18
V
INW
2V/div
0V
0V
V
ONW
2V/div
5V/div
4ms/div
V
PWRRDY
V
GATEX
V
GATEW
Typical Operating Characteristics (continued)
(Typical Operating Circuits, Q1 = Q2 = Q3 = Q4 = Fairchild FDB7090L, V
IN1
= 12V, V
IN2
= 5.0V, V
IN3
= 3.3V, V
IN4
= 1.0V, T
A
=
+25°C, unless otherwise noted. Channels 1 through 4 are identical in performance. Where characteristics are interchangeable,
channels 1 through 4 are referred to as W, X, Y, and Z.)