MAX5929AEEG+ Maxim Integrated Products, MAX5929AEEG+ Datasheet - Page 18

• Manufacturer Part Number: MAX5929AEEG+
• Description: IC HOT SWAP CTLR QUAD 24QSOP
• Manufacturer: Maxim Integrated Products
• Type: Hot-Swap Controllerr

Specifications of MAX5929AEEG+

• Applications: General Purpose
• Internal Switch(s): No
• Voltage - Supply: 1 V ~ 15 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 24-QSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Low-Voltage, Quad, Hot-Swap
Controllers/Power Sequencers
The slow-comparator threshold voltage is adjustable
from 25mV to 100mV. Select a sense resistor that caus-
es a drop equal to the slow-comparator threshold volt-
age at a current level above the maximum normal
operating current. Typically, set the overload current at
1.2 to 1.5 times the full load current. The fast-compara-
tor threshold is two times the slow-comparator thresh-
old in normal operating mode. Choose the sense
resistor power rating to be greater than or equal to 2 x
(I
ed sense resistor manufacturers.
The slow-comparator threshold voltage is adjustable
from 25mV to 100mV, allowing designers to fine-tune the
current-limit threshold for use with standard-value sense
resistors. Low slow-comparator thresholds allow for
increased efficiency by reducing the power dissipated
by the sense resistor. Furthermore, the low 25mV slow-
comparator threshold is beneficial when operating with
supply rails down to 1V because it allows a small per-
centage of the overall output voltage to be used for cur-
rent sensing. The VariableSpeed/BiLevel fault protection
feature offers inherent system immunity against load
transients and noise. This allows the slow-comparator
threshold to be set close to the maximum normal
Table 6. Recommended n-Channel MOSFETs
Table 7. Component Manufacturers
18
IRF7413
IRF7401
IRL3502S
MMSF3300
MMSF5N02H
MTB60N05H
FDS6670A
ND8426A
FDB8030L
Sense Resistors
MOSFETs
OVERLOAD
Slow-Comparator Threshold, R
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
COMPONENT
) x V
PART NUMBER
SC,TH
. Table 7 lists some recommend-
Vishay/Dale Resistors
IRC, Inc.
International Rectifier
Fairchild Semiconductor
On Semiconductor
MANUFACTURER
LIM_
Sense Resistor
International Rectifier
On Semiconductor
Fairchild Semiconductor
(MAX5927A)
MANUFACTURER
operating level without experiencing nuisance faults. To
adjust the slow-comparator threshold, calculate R
as follows:
where V
voltage. Shorting LIM_ to GND sets V
not leave LIM_ unconnected.
The startup period (t
50ms. The adjustable startup period feature allows sys-
tems to be customized for MOSFET gate capacitance
and board capacitance (C
is adjusted with a resistor connected from TIM to GND
(R
startup period has a default value of 9ms when TIM is
left unconnected. Calculate R
equation:
where t
TIM
402-564-3131
361-992-7900
310-322-3331
888-522-5372
602-244-6600
). R
PHONE
START
TH
TIM
is the desired slow-comparator threshold
must be between 4kΩ and 500kΩ. The
is the desired startup period.
R
R
11mΩ, 8-pin SO, 30V
22mΩ, 8-pin SO, 20V
6mΩ, D
20mΩ, 8-pin SO, 30V
30mΩ, 8-pin SO, 20V
14mΩ, D
10mΩ, 8-pin SO, 30V
13.5mΩ, 8-pin SO, 20V
4.5mΩ, D
LIM
TIM
START
Setting the Startup Period, R
_
www.vishay.com
www.irctt.com
www.irf.com
www.fairchildsemi.com
www.onsemi.com
=
=
2
PAK, 20V
128
2
2
PAK, 50V
V
) is adjustable from 0.4ms to
PAK, 30V
BOARD
TH
t
START
7 5
×
DESCRIPTION
−
.
TIM
800
μ
25
A
WEBSITE
). The startup period
mV
pF
with the following
TH
to 25mV. Do
LIM_
TIM