參數(shù)資料
型號(hào)： MAX5941
廠商： Maxim Integrated Products, Inc.
英文描述： IEEE 802.3af-Compliant Power-Over-Ethernet Interface/PWM Controller for Power Devices
中文描述： 符合IEEE 802.3af標(biāo)準(zhǔn)的以太網(wǎng)供電接口/PWM控制器，適用于用電設(shè)備
文件頁數(shù)： 4/24頁
文件大?。?/td> 453K
代理商： MAX5941
M
IEEE 802.3af-Compliant Power-Over-Ethernet
Interface/PWM Controller for Power Devices
4
_______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (PWM Controller) (continued)
(All voltages referenced to V-. V
DD
= 13V, a 10μF capacitor connects V
CC
to V-, V
CS
= V-, V+ = 48V, 0.1μF capacitor connected to
SS_
SHDN
, NDRV = open circuit, OPTO = V-, T
A
= T
MIN
to +T
MAX
, unless otherwise noted. Typical values are at T
A
= +25
°
C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
190
8
MAX
290
20
UNITS
μA
μA
V+ Shutdown Current
V
DD
Shutdown Current
PREREGULATORS/STARTUP
V+ Input Voltage
V
DD
Supply Voltage
INTERNAL REGULATORS
V
SS_
SHDN
= 0V, V+ = 67V
V
SS_
SHDN
= 0V
18
13
67
36
V
V
Powered from V+, I
CC
= 7.5mA, V
DD
= 0V
Powered from V
DD
, I
CC
= 7.5mA
V
CC
falling
7.5
9.0
9.8
10.0
6.6
12
11.0
V
CC
Output Voltage
V
V
CC
Undervoltage Lockout
OUTPUT DRIVER
Peak Source Current
Peak Sink Current
V
CC_UVLO
V
V
CC
= 11V (externally forced)
V
CC
= 11V (externally forced)
V
CC
= 11V, externally forced, NDRV
sourcing 50mA
570
1000
mA
mA
NDRV High-Side Driver
Resistance
R
OH
4
12
NDRV Low-Side Driver
Resistance
PWM COMPARATOR
OPTO Input Bias Current
OPTO Control Range
Slope Compensation
THERMAL SHUTDOWN
Thermal Shutdown Temperature
Thermal Hysteresis
CURRENT LIMIT
CS Threshold Voltage
CS Input Bias Current
R
OL
V
CC
= 11V, externally forced, NDRV sinking
50mA
1.6
4
V
OPTO
= V
SS_
SHDN
-1.00
2
+1.00
3
μA
V
V
SCOMP
MAX5941A
26
mV/μs
150
25
°
C
°
C
V
ILIM
V
OPTO
= 4V
0V
≤
V
CS
≤
2V, V
OPTO
= 4V
419
-1
465
510
+1
mV
μA
Current-Limit Comparator
Propagation Delay
25mV overdrive on CS, V
OPTO
= 4V
180
ns
CS Blanking Time
OSCILLATOR
Clock Frequency Range
V
OPTO
= 4V
70
ns
V
OPTO
= 4V
MAX5941A, V
OPTO
= 4V
MAX5941B, V
OPTO
= 4V
235
75
44
275
314
85
50
kHz
Max Duty Cycle
%
SOFT-START
SS Source Current
SS Sink Current
Peak Soft-Start Voltage Clamp
I
SSO
V
SS
(SHDN
)
= 0V
2.0
1
2.331
0.25
0.53
4.6
6.5
μA
mA
V
No external load
V
SS_
SHDN
falling (Note 11)
V
SS_
SHDN
rising (Note 11)
2.420
0.37
0.59
2.500
0.41
0.65
Shutdown Threshold
V
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX5941ACSE 功能描述:電源開關(guān) IC - POE / LAN RoHS:否 制造商:Fairchild Semiconductor 開關(guān)數(shù)量:Single 開關(guān)配置:SPST 開啟電阻（最大值）:7.3 Ohms 串話: 帶寬: 開啟時(shí)間（最大值）:13 ns 關(guān)閉時(shí)間（最大值）:20 ns 切換電壓（最大）: 工作電源電壓:8 V to 26 V 最大工作溫度:+ 125 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:TO-220F-6
MAX5941ACSE+ 功能描述:輸入/輸出控制器接口集成電路 IEEE 802.3af POE Int/PWM Controller RoHS:否 制造商:Silicon Labs 產(chǎn)品: 輸入/輸出端數(shù)量: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-64 封裝:Tray
MAX5941ACSE+T 功能描述:輸入/輸出控制器接口集成電路 IEEE 802.3af POE Int/PWM Controller RoHS:否 制造商:Silicon Labs 產(chǎn)品: 輸入/輸出端數(shù)量: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-64 封裝:Tray
MAX5941ACSE-T 功能描述:電源開關(guān) IC - POE / LAN RoHS:否 制造商:Fairchild Semiconductor 開關(guān)數(shù)量:Single 開關(guān)配置:SPST 開啟電阻（最大值）:7.3 Ohms 串話: 帶寬: 開啟時(shí)間（最大值）:13 ns 關(guān)閉時(shí)間（最大值）:20 ns 切換電壓（最大）: 工作電源電壓:8 V to 26 V 最大工作溫度:+ 125 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:TO-220F-6
MAX5941AESE 功能描述:電源開關(guān) IC - POE / LAN RoHS:否 制造商:Fairchild Semiconductor 開關(guān)數(shù)量:Single 開關(guān)配置:SPST 開啟電阻（最大值）:7.3 Ohms 串話: 帶寬: 開啟時(shí)間（最大值）:13 ns 關(guān)閉時(shí)間（最大值）:20 ns 切換電壓（最大）: 工作電源電壓:8 V to 26 V 最大工作溫度:+ 125 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:TO-220F-6
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