 English |
|
|
|
|
|
|
|
| MAX4271 Datasheet, PDF (2/24 Pages) Maxim Integrated Products – 3V to 12V Current-Limiting Hot Swap Controllers with Autoretry, DualSpeed/BiLevel Fault Protection | |||
| |||
| ◁ |
3V to 12V Current-Limiting Hot Swap Controllers
with Autoretry, DualSpeed/BiLevel Fault Protection
ABSOLUTE MAXIMUM RATINGS
IN to GND ............................................................................+15V
STAT, OUTC, LLMON, AUXVCC to GND ...............-0.3V to +14V
GATE to GND ..............................................-0.3V to (VIN + 8.5V)
GATE to LLMON (Note 1).........................................-1V to +8.5V
INC, ON to GND (Note 2) .........................................-1V to +14V
CEXT to GND ...............................................-8.5V to (VIN + 0.3V)
CSPD, CTON,
REF to GND ...........-0.3V to the lower of (VIN + 0.3V) or +12V
VSENSE, RTH, CTIM to GND.......................-0.3V to (VIN + 0.3V)
Current into INC, ON (Note 2) ............................................±2mA
Current into Any Other Pin ...............................................±50mA
Continuous Power Dissipation (TA = +70°C)
8-Pin SO (derate 5.9mW/°C above +70°C)..................471mW
16-Pin QSOP (derate 8.3mW/°C above +70°C)...........667mW
16-Pin SO (derate 8.7mW/°C above +70°C)................696mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Note 1: GATE can be pulled below LLMON, but current must be limited to 2mA.
Note 2: INC and ON can be pulled below ground. Limiting the current to 2mA ensures that these pins are never lower than about -0.8V.
Stresses beyond those listed under âAbsolute Maximum Ratingsâ 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
(VIN = +2.7V to +13.2V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at VIN = +5V and TA = +25°C.) (Note 3)
PARAMETER
POWER SUPPLIES
Input Voltage Range
Supply Current
CURRENT CONTROL
Slow Comparator Threshold
Slow Comparator Response
Time
Fast Comparator Threshold
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
VIN
IQ
VON = VIN
2.7
13.2
V
0.6
1
mA
VSC,TH VIN - VSENSE
TA = +25°C
45
50
55
mV
TA = TMIN to TMAX
43.5
56
tCSPD
CSPD = floating
CSPD = 100nF to GND
10
20
40
µs
10
20
40
ms
5k⦠on TA = +25°C
45
50
55
RTH to
VIN
TA = TMIN to TMAX 43.5
56
VFC,TH
MAX4273
only
75kâ¦
on RTH
TA = +25°C
675
750
825
mV
to VIN
TA = TMIN to TMAX
650
840
RTH = GND
MAX4271/MAX4272
180
200
220
Fast Comparator Response
Time
tFCD
10mV overdrive, from overload condition to
gate discharging
350
ns
SENSE Input Bias Current
MOSFET DRIVER
Startup Period
(Notes 4, 5)
Gate Charge Current
IB,SENSE VSENSE = VIN
tSTART
IGATE
MAX4271/MAX4272 CTIM = 100nF
MAX4273 CTON = 100nF
No capacitor
GATE = IN (Note 6)
0.2
10
µA
21
31
41
ms
21
31
41
5.5
µs
100
µA
2 _______________________________________________________________________________________
|
▷ |
German
Russian
Spanish
Italian
Polish
Chinese
Japanese
Korean
French
Portuguese