參數(shù)資料
型號: EKK8011
英文描述: Low-Voltage, Single Supply, SPST, High Performance Analog Switches; Temperature Range: -40°C to 85°C; Package: 8-SOIC T&R
中文描述: 的USB PS / 2鍵盤控制器
文件頁數(shù): 12/24頁
文件大小: 465K
代理商: EKK8011
MAX5942A/MAX5942B
IEEE 802.3af Power-Over-Ethernet
Interface/PWM Controller for Power Devices
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VIN = (GND - VEE) = 48V, GATE = PGOOD = PGOOD = OPEN, V- tied to OUT, V+ tied to GND, UVLO = VEE, TA = TMIN to TMAX,
unless otherwise noted. Typical values are at TA = +25
°C. All voltages are referenced to VEE, unless otherwise noted.) (Note 1)
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.
(All voltages are referenced to VEE, unless otherwise noted.)
GND........................................................................-0.3V to +80V
OUT, PGOOD ...........................................-0.3V to (GND + 0.3V)
RCL, GATE .............................................................-0.3V to +12V
UVLO ........................................................................-0.3V to +8V
PGOOD to OUT.........................................-0.3V to (GND + 0.3V)
V+ to V-...................................................................-0.3V to +80V
VDD to V-.................................................................-0.3V to +40V
VCC to V-..............................................................-0.3V to +12.5V
FB, NDRV, SS_SHDN, CS to V- ..................-0.3V to (VCC + 0.3V)
Maximum Input/Output Current (continuous)
OUT to VEE ...................................................................500mA
GND, RCL to VEE ............................................................70mA
UVLO, PGOOD, PGOOD to VEE .....................................20mA
GATE to VEE....................................................................80mA
VDD, VCC.........................................................................20mA
NDRV Continuous ...........................................................25mA
NDRV (pulsed for less than 1s) .......................................±1A
Continuous Power Dissipation (TA = +70°C)
16-Pin SO (derate 9.1mW/°C above +70°C)................727mW
Operating Temperature Ranges
MAX5942_CSE...................................................0°C to +70°C
MAX5942_ESE ................................................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Junction Temperature ......................................................+150°C
Lead Temperature (soldering, 10s) ................................+300°C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
PD INTERFACE
DETECTION MODE
Input Offset Current
IOFFSET
VIN = 1.4V to 10.1V (Note 2)
10
A
Effective Differential Input
Resistance
dR
VIN = 1.4V up to 10.1V with 1V step,
OUT = PGOOD = GND (Note 3)
550
k
CLASSIFICATION MODE
Classification Current Turn-Off
Threshold
VTH,CLSS
VIN rising (Note 4)
20.8
21.8
22.5
V
Class 0, RCL = 10k
02
Class 1, RCL = 732
9.17
11.83
Class 2, RCL = 392
17.29
19.71
Class 3, RCL = 255
26.45
29.55
Classification Current
ICLASS
VIN = 12.6V
to 20V, RDISC
= 25.5k
(Notes 5, 6)
Class 4, RCL = 178
36.6
41.4
mA
POWER MODE
Operating Supply Voltage
VIN
VIN = (GND - VEE)67
V
Operating Supply Current
IIN
Measure at GND, not including RDISC
0.4
1
mA
Default Power Turn-On Voltage
VUVLO,ON
VIN increasing, UVLO = VEE
37.4
38.6
40.1
V
Default Power Turn-Off Voltage
VUVLO,OFF VIN decreasing, UVLO = VEE
30
V
Default Power Turn-On/Off
Hysteresis
VHYST,UVLO
7.4
V
External UVLO Programming
Range
VIN,EX
Set UVLO externally (Note 7)
12
67
V
UVLO External Reference Voltage
VREF,UVLO VUVLO increasing
2.400
2.460
2.522
V
UVLO External Reference
Voltage Hysteresis
HYST
Ratio to VREF,UVLO
19.2
20
20.9
%
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