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參數資料
| 型號： | PTB48540AAS |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT 10 W DC-DC REG PWR SUPPLY MODULE |
| 文件頁數： | 1/12頁 |
| 文件大小： | 219K |
| 代理商： | PTB48540AAS |
For technical support and further information visit http://power.ti.com
Product Top View
Pin Assignments
Pin
Function
1
–Vout
2
Vout Adj
3
+Vout
4
Input Ref
5
Detect A
6
Detect B
7
Spare Line B
8
Spare Line A
9
Data Line B
10
Data Line A
11
Class B
12
Class A
13
Output Inhibit *
Shaded functions indicate signals
electrically common with the input.
* Denotes negative logic:
Open = Normal operation
Low (Input Ref) = Output Off
Description
The PTB48540 series of power mod-
ules is specifically designed to provide
an isolated, low-voltage power source to
a remote Powered Device (PD) in Power-
Over-Ethernet (PoE) applications. These
modules are rated 10 W and incorporate
all the necessary interface requirements
to comply with IEEE Std. 802.3af, for
managing the input power to the PD from
the PoE Power Sourcing Equipment
(PSE). This includes PD detection and
PD classification current signatures
required for the PSE. The modules are
compatible with PD classifications, class 0
through class 3.
In addition to a fully integrated DC/DC
converter, each PTB48540 power module
incorporates internal input diode bridges
to support both Data Line and Spare Line
pair standard Ethernet power connec-
tions, an integral transient suppressor
for input over-voltage protection, and
an EMI filter to ensure noise compat-
ibility with Ethernet data signals.
Other features include an input under-
voltage lockout (UVLO), over-current
and short-circuit protection, an output
voltage adjust/trim, and over-temperature
protection. An “Output Inhibit” control
allows the output voltage to be turned
off to support an idle condition or power
saving mode. The output voltage options
are for 3.3-V, 5-V, or 12-V output. The
target applications are small low-power
remote IP appliances, such as security card
readers and cameras, test dongles, and IP
phone consoles.
Features
Input Voltage Range:
36 V to 57 V
10 W Output
IEEE Std. 802.3af Compliant
(for PoE-PD Interface)
85 % Efficiency
Low Profile (9 mm)
Output Voltage Trim/Adjust
Under-Voltage Lockout
Input Transient Suppressor
PTB48540 Series
10-W Power-Over-Ethernet Isolated
Power Module Assembly
SLTS224B – APRIL 2004 – REVISED JULY 2004
Internal EMI Filter
Meets FCC Class B Radiated &
Class A Conducted
Output Inhibit Control
Short Circuit Protection
Over Temperature Shutdown
1500 VDC Isolation
Safety Approvals (Pending):
UL 60950, cUL 60950, EN60950
1
2
3
4
5
6
7
8
9
10
11
12
13
Inpu
tR
e
f
O
u
tput
In
hi
bi
t
Spare Line A
Data Line B
Data Line A
+VOUT
VOUT Adj
–VOUT
Cl
a
s
A
Cl
a
s
B
PoE-PD
Interface Switch
(TPS2375)
EMI
Filter
Transient
Suppression
Data/Spare Line
Bridge Rectifiers
DC/DC
Converter
De
tec
tA
De
tec
tB
Spare Line B
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相關代理商/技術參數 |
參數描述 |
|---|---|
| PTB48540AAZ | 功能描述:DC/DC轉換器 5 V 10-W Pwr-Over- Ethernet Pwr Module RoHS:否 制造商:Murata 產品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標稱）: 輸出端數量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風格:SMD/SMT 封裝 / 箱體尺寸: |
| PTB48540BAD | 功能描述:DC/DC轉換器 3.3 V 10W Pwr-Over- Ethernet Pwr Module RoHS:否 制造商:Murata 產品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標稱）: 輸出端數量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風格:SMD/SMT 封裝 / 箱體尺寸: |
| PTB48540BAH | 功能描述:DC/DC轉換器 3.3 V 10W Pwr-Over- Ethernet Pwr Module RoHS:否 制造商:Murata 產品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標稱）: 輸出端數量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風格:SMD/SMT 封裝 / 箱體尺寸: |
| PTB48540BAS | 功能描述:DC/DC轉換器 3.3 V 10W Pwr-Over- Ethernet Pwr Module RoHS:否 制造商:Murata 產品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標稱）: 輸出端數量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風格:SMD/SMT 封裝 / 箱體尺寸: |
| PTB48540BAZ | 功能描述:DC/DC轉換器 3.3 V 10W Pwr-Over- Ethernet Pwr Module RoHS:否 制造商:Murata 產品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標稱）: 輸出端數量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風格:SMD/SMT 封裝 / 箱體尺寸: |
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