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參數(shù)資料
| 型號(hào)： | MAX5945EAX |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | Quad Network Power Controller for Power-Over-LAN |
| 中文描述： | 4-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO36 |
| 封裝： | 0.80 MM PICTH, SSOP-36 |
| 文件頁(yè)數(shù)： | 6/44頁(yè) |
| 文件大?。?/td> | 572K |
| 代理商： | MAX5945EAX |
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M
Quad Network Power Controller
for Power-Over-LAN
6
_______________________________________________________________________________________
Note 2:
Default values. The charge/discharge currents are programmable through the serial interface (see the
Register Map and
Description
section).
Note 3:
Default values. The current-limit thresholds are programmed through the I
2
C-compatible serial interface (see the
Register
Map and Description
section).
Note 4:
This is the default value. Threshold can be programmed through serial interface R23h[2:0].
Note 5:
AC disconnect works only if V
DD
- V
DGND
≥
3V.
Note 6:
t
DISC
can also be programmed through the serial interface (R29h) (see the
Register Map and Description
section).
Note 7:
R
D
= (V
OUT_2
- V
OUT_1
) / (I
DET_2
- I
DET_1
). V
OUT_1
, V
OUT_2
, I
DET_2
and I
DET_1
represent the voltage at OUT_ and the current
at DET_ during phase 1 and 2 of the detection.
Note 8:
Default values. The startup and fault times can also be programmed through the I
2
C serial interface (see the
Register Map
and Description
section).
Note 9:
Guaranteed by design. Not subject to production testing.
ANALOG SUPPLY CURRENT
vs. INPUT VOLTAGE
M
INPUT VOLTAGE (V)
S
57
52
47
42
37
3.6
3.7
3.8
3.9
4.0
4.1
4.2
4.3
4.4
4.5
3.5
32
62
MEASURED AT AGND
ANALOG SUPPLY CURRENT
vs. TEMPERATURE
M
TEMPERATURE (
°
C)
S
60
35
10
-15
3.2
3.4
3.6
3.8
4.0
4.2
4.4
4.6
4.8
5.0
3.0
-40
85
DIGITAL SUPPLY CURRENT
vs. TEMPERATURE
M
TEMPERATURE (
°
C)
S
60
35
10
-15
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
0
-40
85
Typical Operating Characteristics
(V
EE
= -48V, V
DD
= +3.3V, AUTO = AGND = DGND = 0V,
RESET
=
SHD_
= unconnected, R
SENSE
= 0.5
, all registers = default setting,
T
A
= +25°C, unless otherwise noted.)
ELECTRICAL CHARACTERISTICS (continued)
(AGND = +32V to +60V, V
EE
= 0V, V
DD
to DGND = +3.3V, all voltages are referenced to V
EE
, unless otherwise noted. Typical
values are at AGND = +48V, DGND = +48V, V
DD
= (DGND + 3.3V), T
A
= +25°C. Currents are positive when entering the pin and
negative otherwise.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Setup Time for a Repeated
START Condition (Sr)
t
SU, STA
(Note 9)
0.6
μs
Data Hold Time
Data Setup Time
t
HD, DAT
t
SU, DAT
(Note 9)
(Note 9)
0
150
ns
ns
100
Rise Time of Both SDA and
SCL Signals, Receiving
t
R
(Note 9)
20 + 0.1C
B
300
ns
Fall Time of SDA Transmitting
Setup Time for STOP Condition
t
F
(Note 9)
(Note 9)
20 + 0.1C
B
0.6
300
ns
μs
t
SU, STO
C ap aci i ve Load for E ach Bus
Li ne
C
B
(Note 9)
400
pF
Pulse Width of Spike
Suppressed
t
SP
(Note 9)
50
ns
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX5945EAX+ | 功能描述:熱插拔功率分布 IEEE 802.3af Quad Net Pwr Controller RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| MAX5945EAX+T | 功能描述:熱插拔功率分布 IEEE 802.3af Quad Net Pwr Controller RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| MAX5945EAX-T | 功能描述:熱插拔功率分布 RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| MAX5945EVKIT | 功能描述:電源管理IC開發(fā)工具 Evaluation Kit/Evaluation System for the MAX5945 RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| MAX5945EVSYS | 功能描述:電源管理IC開發(fā)工具 Evaluation Kit/Evaluation System for the MAX5945 RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
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