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参数资料
| 型号： | MAX5942BESE+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 22/24页 |
| 文件大小： | 0K |
| 描述： | IC IEEE 802.3AF POE SYSTM 16SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 控制器类型： | 以太网供电控制器（POE） |
| 接口： | IEEE 802.3af |
| 电源电压： | 48V |
| 电流 - 电源： | 1mA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-SOIC |
| 包装： | 带卷 (TR) |
MAX5942A/MAX5942B
IEEE 802.3af Power-Over-Ethernet
Interface/PWM Controller for Power Devices
_______________________________________________________________________________________
7
INRUSH CURRENT CONTROL
(VIN = 48V)
MAX5942A/B toc10
VGATE
5V/div
IINRUSH
100mA/div
VOUT
50V/div
PGOOD
50V/div
2ms/div
INRUSH CURRENT CONTROL
(VIN = 67V)
MAX5942A/B
toc11
VGATE
5V/div
IINRUSH
100mA/div
VOUT
50V/div
PGOOD
50V/div
2ms/div
0.999
1.000
1.001
1.002
1.003
-40
0
-20
20
40
60
80
VSS_SHDN vs. TEMPERATURE
(AT THE END OF SOFT-START)
MAX5942
toc12
TEMPERATURE (°C)
VFB = V-
V
SS_SHDN
(V)
(NORMALIZED
TO
V
REF
=2.4V)
80.4
80.6
80.5
80.8
80.7
80.9
81.0
-40
20
40
-20
0
60
80
MAX5942A
MAXIMUM DUTY CYCLE vs. TEMPERATURE
MAX5942
toc14
TEMPERATURE (°C)
MAXIMUM
DUTY
CYCLE
(%)
FB = V-
46.8
47.2
47.0
47.6
47.4
47.8
48.0
-40
20
40
-20
0
60
80
MAX5942B
MAXIMUM DUTY CYCLE vs. TEMPERATURE
MAX5942
toc15
TEMPERATURE (°C)
MAXIMUM
DUTY
CYCLE
(%)
FB = V-
V+ SUPPLY CURRENT
vs. TEMPERATURE
MAX5942
toc16
1.55
1.56
1.58
1.57
1.62
1.63
1.61
1.60
1.59
1.64
V+
SUPPLY
CURRENT
(mA)
-40
0
20
-20
40
60
80
TEMPERATURE (°C)
FB = VDD = V-
4.40
4.43
4.42
4.41
4.45
4.44
4.49
4.48
4.47
4.46
4.50
-40
-20
0
20
40
60
80
SOFT-START SOURCE CURRENT
vs. TEMPERATURE
MAX5942
toc17
TEMPERATURE (°C)
SOFT-START
SOURCE
CURRENT
(
A)
VDD = FB = SS_SHDN = V-
V+ = 67V
13.50
13.55
13.70
13.65
13.60
13.75
13.80
-40
0
-20
20
40
60
80
V+ INPUT CURRENT vs.
TEMPERATURE (AFTER STARTUP)
MAX5942
toc18
TEMPERATURE (°C)
V+
INPUT
CURRENT
(
A)
V+ = 67V, VDD = 13V, FB = V-
Typical Operating Characteristics (continued)
(VIN = (GND - VEE) = 48V, GATE = PGOOD = PGOOD = OUT = OPEN, UVLO = VEE, VDD = 13V, NDRV floating, TA = TMIN to TMAX.
Typical values are at TA = +25°C. All voltages are referenced to VEE (for graphs 1–11 in the Typical Operating Characteristics); all
voltages are referenced to V- (for graphs 12–30 in the Typical Operating Characteristics), unless otherwise noted.
273
274
276
275
277
278
-40
0
-20
20
40
60
80
NDRV FREQUENCY
vs. TEMPERATURE
MAX5942
toc13
TEMPERATURE (°C)
NDRV
FREQUENCY
(kHz)
FB = V-
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相关代理商/技术参数 |
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| MAX5943AEEE | 功能描述:热插拔功率分布 RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
| MAX5943AEEE+ | 功能描述:热插拔功率分布 FireWire Current Limiter RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
| MAX5943AEEE+T | 功能描述:热插拔功率分布 FireWire Current Limiter RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
| MAX5943AEEE-T | 功能描述:热插拔功率分布 RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
| MAX5943AEVKIT | 功能描述:电源管理IC开发工具 Evaluation Kit for the MAX5943A/B/C/D/E RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
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