MAX5913AEMH Просмотр технического описания (PDF) - Maxim Integrated
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MAX5913AEMH Datasheet PDF : 20 Pages
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+48V Quad Hot-Swap Controllers For
Power-Over-LAN
ABSOLUTE MAXIMUM RATINGS
VCC to AGND or DGND..........................................-0.6V to +76V
DRAIN_, OUT_ to AGND or DGND .............-0.6V to (VCC +0.3V)
CSP_ to VCC ..........................................................-0.3V to +0.3V
GATE_ to OUT_ .....................................................-0.3V to +13V
VRLY to DGND ........................................................-0.3V to +18V
RLYD_ to DGND........................................-0.3V to (VRLY + 0.3V)
ON_, RLYON_, OCEN, RTRYEN, STATOUT,
DC to DGND........................................................-0.3V to +12V
FAULT to DGND .....................................................-0.3V to +12V
STAT_, RTIM to DGND ...............................-0.3V to (VDD + 0.3V)
VDD to DGND ...........................................................-0.3V to +7V
DGND to AGND...........................................................-5V to +5V
Current into RLYD_ .........................................-50mA to +150mA
Current into Any Other Pin................................................±50mA
Continuous Power Dissipation (TA = +70°C)
44-Pin MQFP (derate 12.7mW/°C above +70°C)......... 1.013W
Operating Temperature Range ...........................-40°C to +85°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
(VCC = VCSP_ = +48V, VAGND = VDGND = 0V, VDD = +3.3V, VRLY = +12V, TA = -40°C to +85°C, unless otherwise noted. Typical val-
ues are at VCC = VCSP_ = +48V and TA = +25°C.)
PARAMETER
POWER SUPPLIES
Analog Supply Voltage
Analog Supply Current
Digital Supply Voltage
Digital Supply Current
Analog Supply Undervoltage
Lockout
SYMBOL
CONDITIONS
VCC Measured with respect to AGND
IS
VCC = VCSP_ = 72V TA = 0°C to +85°C
IS = ICC + ICSP
TA = -40°C to 0°C
VDD Measured with respect to DGND
IDD All logic outputs high, RTIM unconnected
VUVLO VCC rising, circuits enabled
MIN TYP MAX UNITS
35
72
V
2.7
4
mA
5
2.5
3.3
3.7
V
1.1
3
mA
29
32
35
V
UVLO Hysteresis
VUVLO,H
3
V
UVLO Deglitch Delay
tD,UVLO VON = 3.3V, VRLYON = 3.3V (Figure 1)
12.8 25.6 38.4 ms
Relay Driver Supply
VRLY Measured with respect to DGND
14
V
Ground Potential Difference
VGG Voltage difference between DGND and AGND -4
4
V
FEEDBACK INPUT AND CURRENT SENSE
OUT Sense Bias Current
IFP
VOUT_ = VCC
2
µA
Initial Feedback Voltage
VFB_S
Voltage under which the foldback circuit
starts reducing the current-limit value
(Note 1)
18
V
Current-Limit Threshold Voltage
Foldback Voltage
VSC Maximum ∆V across RSENSE at VOUT > VFB_S 125 142.5 160
mV
VFLBK Maximum ∆V across RSENSE at VOUT = 0V
42
48
54
mV
Fast Discharge Threshold
VFC
360
420 480
mV
Switch-On Threshold
VSWON
Maximum VCC - VOUT at which the switch is
defined as fully on, VOUT increasing
1.2
1.5
1.8
V
Switch-On Comparator Hysteresis VSWON_H
160
mV
MOSFET DRIVERS
Gate Overdrive Voltage
Gate Charge Current
VGS
IGATE
VGATE - VCC when switch is fully on
0°C to +85°C
TA = -40°C to 0°C
VGATE = 0V
7
9
11
V
7
9
12
7
10
13
µA
2 _______________________________________________________________________________________
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