参数资料
型号: MAX5922BEUI+
厂商: Maxim Integrated
文件页数: 3/21页
文件大小: 437K
描述: IC NETWORK PWR SW +48V 28-TSSOP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 50
类型: 以太网供电开关(PoE)
应用: 远程外设(工业控制,相机,数据访问)
内部开关:
电源电压: 32 V ~ 60 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 28-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 28-TSSOP
包装: 管件
+48V, Single-Port Network Power Switch
For Power-Over-LAN
_______________________________________________________________________________________   3
ELECTRICAL CHARACTERISTICS (continued)
(V
IN
= 48V, V
DIG
= 3.3V, AGND_S = AGND = DGND = 0V, R
SENSE
= 0.5& ?%, UVLO = open, EN = V
DIG
, R
RCL
= 150& ?%, R
RDT
= 18.2k& ?%, T
A
= -40癈 to +85癈, unless otherwise noted. Typical values are at T
A
= +25癈.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
t
POK_LOW
POK from high to low, V
OUT
 falling
1.0
1.4
1.8
POK Output Delay (Note 6)
t
POK_HIGH
POK from low to high, V
OUT
rising
74
88
102
ms
Zero-Current Detection Threshold
Voltage (V
IN
 - V
DRS
)
V
ZCTH
(Note 4)
2.7
3.75
4.8
mV
ZC Output Low Voltage
V 
ZC_LOW
I 
ZC
 = 3mA
0.4
V
ZC Output Leakage Current
V 
ZC
 = 3.3V
0.05
1
Zero-Current Detection Delay
t
ZCDEL
ZC
 
from high to low, I
OUT
 falling (Note 7)
300
350
400
ms
Zero-Current Deglitch Time
t
ZC_DEG
I
OUT
 rising
10
ms
Temperature rising
150
Thermal Shutdown
Hysteresis
30
Shutdown Autorestart Time
t
RESTART
LATCH = low (Note 8)
1.60
1.92
2.24
s
UNDERVOLTAGE LOCKOUT
MAX5922A
36
38
40
UVLO floating, V
IN
 rising
MAX5922B/
MAX5922C
26
28
30
MAX5922A
4.4
Default V
IN
 UVLO
UVLO
TH
Hysteresis
MAX5922B/C
2.5
V
MAX5922A
1.36
1.38
1.41
Referenced to AGND_S,
V
UVLO
 rising
MAX5922B/
MAX5922C
1.31
1.33
1.36
V
MAX5922A
160
UVLO Comparator Threshold
V
REF
Hysteresis
MAX5922B/
MAX5922C
120
mV
UVLO Input Resistance
50
k&
LOGIC SIGNALS
EN, LATCH, DCA, DET_DIS
CLASS, and ZC_EN Input High
Voltage
V
IH
1.65V < V
DIG
 < 5.5V
0.7 ?/DIV>
V
DIG
V
1.65V < V
DIG
 < 2.0V
0.3 ?/DIV>
V
DIG
EN, LATCH, DCA, DET_DIS
CLASS, and ZC_EN Input Low
Voltage
V
IL
2.0V < V
DIG
 < 5.5V
0.8
V
EN, LATCH, DCA, DET_DIS
CLASS, and ZC_EN Input Current
-1
+1
EN Low Pulse Width
3
FAULT, CL0, CL1 and CL2,
Output Low Voltage
V
OL
I
SINK
 = 3mA
0.4
V
FAULT, CL0, CL1 and CL2,
Output Leakage Current
V
FAULT
 = V
CL0
 = V
CL1
 = V
CL2
 = 3.3V,
CLASS = 0V
0.05
1
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