參數(shù)資料
型號： MAX5942ACSE
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 穩(wěn)壓器
英文描述： IEEE 802.3af Power-Over-Ethernet Interface/PWM Controller for Power Devices
中文描述： 1 A SWITCHING CONTROLLER, 314 kHz SWITCHING FREQ-MAX, PDSO16
封裝： 0.150 INCH, MS-012AC, SOIC-16
文件頁數(shù)： 4/24頁
文件大?。?/td> 465K
代理商： MAX5942ACSE
M
IEEE 802.3af 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, V
FB
= 3V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25
°
C.) (Note 1)
PARAMETER
SYMBOL
I
VDD(NS)
I
VDD(S)
CONDITIONS
MIN
TYP
0.9
1.9
180
4
MAX
1.6
3.2
290
20
UNITS
V
DD
= 36V, driver not switching
V
DD
= 36V, driver switching, V
OPTO
= 4V
V
SS_
SHDN
= 0V, V+ = 67V
V
SS_
SHDN
= 0V
V
DD
Supply Current
mA
V+ Shutdown Current
V
DD
Shutdown Current
PREREGULATORS/STARTUP
V+ Input Voltage
V
DD
Supply Voltage
INTERNAL REGULATORS
μA
μA
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
R
OL
V
CC
= 11V, externally forced, NDRV sinking
50mA
1.6
4
ERROR AMPLIFIER
FB Input Resistance
FB Input Bias Current
Error Amplifier Gain (Inverting)
Closed-Loop 3dB Bandwidth
FB Input Voltage Range
SLOPE COMPENSATION
Slope Compensation
THERMAL SHUTDOWN
Thermal Shutdown Temperature
Thermal Hysteresis
CURRENT LIMIT
CS Threshold Voltage
CS Input Bias Current
R
IN
I
FB
A
VCL
50
±1
-20
200
k
μA
V/V
kHz
V
V
FB
= V
SS_
SHDN
2
3
V
SCOMP
MAX5942A
26
mV/μs
+150
25
°
C
°
C
V
ILIM
FB = 4V
0V
≤
V
CS
≤
2V, FB = 4V
419
-1
465
510
+1
mV
μA
Current-Limit Comparator
Propagation Delay
25mV overdrive on CS, FB = V-
180
ns
CS Blanking Time
OSCILLATOR
Clock Frequency Range
FB = GN D onl y P W M com p ar ator i s b anked
70
ns
FB = V-
MAX5942A, FB = V-
MAX5942B, FB = V-
235
75
44
275
314
85
50
kHz
Max Duty Cycle
%
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX5942ACSE+ 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
MAX5942ACSE+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
MAX5942ACSE-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: 開啟時間（最大值）:13 ns 關(guān)閉時間（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
MAX5942AESE 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: 開啟時間（最大值）:13 ns 關(guān)閉時間（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
MAX5942AESE+ 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
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