Smallest, Most Reliable, 12V, Infiniband-
Compliant Hot-Swap Controller
MAX8533
ABSOLUTE MAXIMUM RATINGS
IN, POK to RET .......................................................-0.3V to +16V
GATE to RET ...................................................-0.3V to (V
IN
+ 7V)
OUT, ISET, CTIM to RET ..............................-0.3V to (V
IN
+ 0.3V)
EN, LPEN, OVP to RET .............................................-0.3V to +6V
Continuous Power Dissipation (T
A
= +70°C)
10-Pin µMax (derate 5.6 mW/°C above +70°C) .......444.4 mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
°
°
(V
IN
= +12V, V
EN
= 0,
T
A
= 0°C to +85°C,
unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
VB BULK SUPPLY CONTROL
IN Supply Voltage Range
ISET Current Source
Current-Limit Offset Voltage
OUT Input Current
Severe Overcurrent Threshold
25W OUT Current Regulation
50W OUT Current Regulation
GATE PARAMETERS
Gate Response Time to Severe
Overcurrent
Gate Response Time to
Overcurrent
Gate Turn-On Current
Gate Pulldown Current
Gate High Voltage
IN PARAMETERS
Quiescent Supply Current
IN UVLO Threshold
POK Undervoltage Threshold
POK Delay
POK Output Voltage
POK Leakage Current
EN Rising Threshold
EN Pullup Voltage
EN Pullup Current
Hysteresis = 300mV
Measured at OUT, rising edge, hysteresis = 300mV
V
POK
rising
V
OUT
< 9.2V, I
POK
= 1.6mA
V
OUT
> 10V, V
POK
= 14V
Hysteresis = 120mV
EN unconnected
1.3
4.5
12
7.5
9.2
100
1.5
8.4
9.6
220
0.1
0.1
1.65
5.5
20
28
3
9.0
10.0
350
0.25
1
2.0
mA
V
V
µs
V
µA
V
V
µA
Overcurrent, V
RSENSE
≥
(current regulation threshold +
100mV) (Note 1)
Severe overcurrent
V
RSENSE
≥
(150mV + current regulation threshold +
50mV) until V
GATE
begins to slew low (Note 1)
V
RSENSE
≥
current regulation threshold + 50mV until
V
GATE
begins to slew low (Note 1)
8.4
100
600
10
2.7
350
V
IN
+ 4 V
IN
+ 5
V
11.6
ns
ns
µA
mA
V
ISET
- V
IN
V
OUT
= 12V
With respect to current regulation threshold
R
ISET
= 3.09kΩ
±1%,
R
SENSE
= 20mΩ
±1%
R
ISET
= 3.09kΩ
±1%,
R
SENSE
= 10mΩ
±1%
2.6
5.2
10
18.5
-4
12
20
0
6
150
3.1
6.2
3.6
7.2
14
21.5
+4
12
V
µA
mV
µA
mV
A
A
CONDITIONS
MIN
TYP
MAX
UNITS
2
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MAXIM [ MAXIM INTEGRATED PRODUCTS ]
