MAX5924DEUB+T Maxim Integrated Products, MAX5924DEUB+T Datasheet - Page 19

• Manufacturer Part Number: MAX5924DEUB+T
• Description: IC HOT-SWAP CTRLR N-CH 10-UMAX
• Manufacturer: Maxim Integrated Products
• Type: Hot-Swap Controllerr

Specifications of MAX5924DEUB+T

• Applications: General Purpose
• Internal Switch(s): No
• Voltage - Supply: 1 V ~ 13.2 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 10-MSOP, Micro10™, 10-uMAX, 10-uSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Keep all traces as short as possible and maximize the
high-current trace dimensions to reduce the effect of
undesirable parasitic inductance. Place the MAX5924/
MAX5925/MAX5926 close to the card’s connector. Use
a ground plane to minimize impedance and induc-
tance. Minimize the current-sense resistor trace length
(<10mm), and ensure accurate current sensing with
Kelvin connections.
When the output is short circuited, the voltage drop
across the external MOSFET becomes large. Hence, the
power dissipation across the switch increases, as does
the die temperature. An efficient way to achieve good
power dissipation on a surface-mount package is to lay
out two copper pads directly under the MOSFET pack-
age on both sides of the board. Connect the two pads
to the ground plane through vias, and use enlarged
copper mounting pads on the top side of the board.
It is important to maximize the thermal coupling between
the MOSFET and the MAX5925/MAX5926 to balance the
device junction temperatures. When the temperatures of
MAX5924A
MAX5924B
MAX5924C
MAX5924D
MAX5925A
MAX5925B
MAX5925C
MAX5925D
MAX5926
PART
1V to 13.2V, n-Channel Hot-Swap Controllers
______________________________________________________________________________________
0 or 3300 (Selectable)
CIRCUIT-BREAKER
TEMPCO
(ppm/°C)
Layout Considerations
3300
3300
3300
3300
0
0
0
0
Latched or Autoretry (Selectable)
FAULT MANAGEMENT
Require No Sense Resistor
Autoretry
Autoretry
Autoretry
Autoretry
Latched
Latched
Latched
Latched
the two devices are equal, the circuit-breaker trip
threshold is most accurate. Keep the MOSFET and the
MAX5925/MAX5926 as close to each other as possible
to facilitate thermal coupling.
Figure 15. Kelvin Connection for the Current-Sense Resistor
HIGH-CURRENT PATH
(OPEN-DRAIN)
PGOOD
—
—
—
—
✓
✓
✓
✓
✓
POWER-GOOD OUTPUT
MAX5924
MAX5925
MAX5926
R
Selector Guide
CB
SENSE RESISTOR
(OPEN-DRAIN)
PGOOD
—
—
—
—
✓
✓
✓
✓
✓
19