MAX5924_06 Datasheet, PDF (8/22 Pages) Maxim Integrated Products – 1V to 13.2V, n-Channel Hot-Swap Controllers Require No Sense Resistor

1V to 13.2V, n-Channel Hot-Swap Controllers
Require No Sense Resistor
Pin Description
PIN
MAX5924A/
MAX5924C/
MAX5925A/
MAX5925C
MAX5924B/
MAX5924D/
MAX5925B/
MAX5925D
MAX5926
NAME
FUNCTION
1
1
1
V_CC
Power-Supply Input. Connect V_CC to a voltage between 2.47V and 13.2V.
V_CC must always be equal to or greater than V_S (see Figure 1).
Short-Circuit Detection Output. Connect SC_DET to V_OUT through a series
resistor, R_SC, when not using R_SENSE. SC_DET forces current (limited to
2
2
2
SC_DET ^{≈200mA) into the external load through RSC at startup to determine whether}
there is a short circuit (load probing). Connect SC_DET directly to V_CC when
using R_SENSE, Do not connect SC_DET to V_CC when not using R_SENSE in an
attempt to disable load probing.
ON/OFF Control Input. Drive EN high to enable the device. Drive EN low to
3
3
—
EN disable the device. An optional external resistive-divider connected between
V_CC, EN, and GND sets the programmable turn-on voltage.
4
—
4
PGOOD Open-Drain Active-Low Power-Good Output
—
4
7
PGOOD Open-Drain Active-High Power-Good Output
5
5
5
GND Ground
Slew-Rate Adjustment Input. Connect an external capacitor between SLEW and
6
6
12
SLEW GND to adjust the gate slew rate. Leave SLEW unconnected for the default
slew rate.
7
7
13
GATE ^{Gate-Drive Output. Connect GATE to the gate of the external n-channel}
MOSFET.
8
8
14
OUT Output Voltage. Connect OUT to the source of the external MOSFET.
Circuit-Breaker Sense Input. Connect SENSE to OUT when not using an
9
9
15
SENSE external RSENSE (Figure 1). Connect SENSE to the drain of the external
MOSFET when using an external R_SENSE (Figure 2).
10
10
16
CB ^{Circuit-Breaker Threshold Programming Input. Connect an external resistor,}
R_CB, from CB to V_S to set the circuit-breaker threshold voltage.
Active-High ON/OFF Control Input. Drive EN1 high to enable the device when
EN2 is low. Drive EN1 low to disable the device, regardless of the state of EN2.
—
—
3
EN1
An optional external resistive-divider between V_CC, EN1, and GND sets the
programmable turn-on voltage while EN2 is low.
Active-Low ON/OFF Control Input. Drive EN2 low to enable the device when
—
—
6
EN2 EN1 is high. Drive EN2 high to disable the device, regardless of the state of
EN1.
—
—
8
LATCH ^{Latch Mode Input. Drive LATCH low for autoretry mode. Drive LATCH high for}
latched mode.
Circuit-Breaker Temperature Coefficient Selection Input. Drive TC low to select
—
—
9
TC a 3300ppm/°C temperature coefficient. Drive TC high to select a 0ppm/°C
temperature coefficient.
—
—
10, 11
N.C. No Connection. Not internally connected.
—
—
EP
EP Exposed Pad. Connect EP to GND.
8 _______________________________________________________________________________________