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參數資料
| 型號： | MCZ34670EG |
| 廠商： | Freescale Semiconductor |
| 文件頁數： | 3/4頁 |
| 文件大小： | 865K |
| 描述： | IC POE CURR MODE SW REG 20-SOIC |
| 標準包裝： | 38 |
| 類型： | 以太網供電控制器（PoE） |
| 應用： | 遠程外設（工業控制，相機，數據訪問） |
| 內部開關： | 無 |
| 電源電壓： | 60V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 20-SOIC（0.295"，7.50mm 寬） |
| 供應商設備封裝： | 20-SOIC W |
| 包裝： | 管件 |
| 產品目錄頁面： | 808 (CN2011-ZH PDF) |
Analog Integrated Circuit Device Data
Freescale Semiconductor
3
34670
PIN CONNECTIONS
PIN CONNECTIONS
Figure 3. 34670 Pin Connections
Table 1. 34670 Pin Definitions
Pin Number
Pin Name
Formal Name
Definition
1, 2
VPWR
Positive Supply
Voltage Input
This is the most positive power supply input. The load connects between this pin
and the V
OUT
pin.
3
RCLA
Classification Resistor
Connect a resistor between RCLA and V
IN
to select the class of the PD.
4
UVLO
Undervoltage Lookout
Used to adjust the undervoltage lookout threshold voltage, connected to V
IN
to use
the default threshold voltage.
5
TEST1
Test pins
Connect to V
IN
in application mode.
6
TEST2
7
FREQ
Frequency Adjustment
Adjusts the internal oscillator frequency by connecting a resistor between FREQ
and V
IN
.
8
ILIM
Inrush Current Limit
Used to adjust the inrush current limit of the isolation switch, add a resistor
between ILIM and V
IN
.
9
VIN
Negative Supply Voltage
This is the most negative power supply input.
10
VIN
11, 12
VOUT
Output Voltage
This pin is the drain of the internal Power MOSFET (high current path).
13
VOUT
Output Voltage
This pin is the drain of the internal Power MOSFET (low current path).
14
RESET
RESET Output
(active low)
This is an active-low RESET output signal. This pin is referenced to V
OUT
.
15
SS
Soft Start Input
Connect an external capacitor to SS. The internal current source charges the
capacitor and generates a soft-start ramp.
16
COMP
Compensation Pin
COMP is the output of the error amplifier and is available for feedback
compensation. COMP is pulled-up by an internal 5.0 k& resistor to 5.0 V.
17
FB
Feedback Input
This is the inverting input of the error amplifier. In non-isolated applications its
connected to the secondary output through a resistor divider.
18
CS
Current Sense
The current sense pin CS senses a voltage that is proportional to the current
through the sense resistor.
19
GATE
Gate Driver Output
GATE drives the gate of the external power MOSFET. GATE sources and sinks
up to 1.0 A.
20
VDD
V
DD
Output
V
DD
mainly supplies the gate of the external power MOSFET. Connect a capacitor
from V
DD
to V
OUT
.
1
2
3
5
4
6
7
8
9
10
20
11
12
13
14
15
16
17
18
19
VPWR
VPWR
RCLA
UVLO
TEST1
TEST2
FREQ
ILIM
VIN
VIN
VDD
GATE
CS
FB
COMP
SS
RESET
VOUT
VOUT
VOUT
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MCZ34670EG/R2 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:IEEE 802.3af PD With Current Mode Switching Regulator |
| MCZ34670EGR2 | 功能描述:熱插拔功率分布 POWER OVER ETHERNET RoHS:否 制造商:Texas Instruments 產品: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: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| MCZ34701EW | 功能描述:開關變換器、穩壓器與控制器 1.5A Sw-Mode Power Supply w/Linear Reg RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| MCZ34701EWR2 | 功能描述:開關變換器、穩壓器與控制器 1.5A Sw-Mode Power Supply w/Linear Reg RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| MCZ34702EW | 功能描述:低壓差穩壓器 - LDO QUICCSUPPLY 2 RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節:0.3 % 輸出端數量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
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