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参数资料
| 型号： | NCP1080DEG |
| 厂商： | ON Semiconductor |
| 文件页数： | 7/15页 |
| 文件大小： | 221K |
| 描述： | IC CONV CTLR POE-PD 13W 20-TSSOP |
| 标准包装： | 74 |
| 类型： | 以太网供电开关（PoE） |
| 应用： | 远程外设（工业控制，相机，数据访问） |
| 内部开关： | 是 |
| 电流限制： | 500mA |
| 电源电压： | 0 V ~ 57 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-TSSOP（0.173"，4.40mm 宽）裸露焊盘 |
| 供应商设备封装： | 20-TSSOP-EP |
| 包装： | 管件 |
NCP1080
http://onsemi.com
7
Recommended Operating Conditions
Operating conditions define the limits for functional operation and parametric characteristics of the device. Note that the
functionality of the device outside the operating conditions described in this section is not warranted. Operating outside the
recommended operating conditions for extended periods of time may affect device reliability.
All values concerning the DCDC controller, VDDH and VDDL blocks are with respect to ARTN. All others are with respect
to VPORTN
1,2
(unless otherwise noted).
Table 3. OPERATING CONDITIONS
Symbol
Parameter
Min.
Typ.
Max.
Units
Conditions
INPUT SUPPLY
VPORT
Input supply voltage
0
57
V
VPORT = VPORTP
VPORTN
1,2
SIGNATURE DETECTION
Vsignature
Input supply voltage signature detection range
1.4
9.5
V
Rsignature
Signature resistance (Note 4)
23.75
26.25
kW
Offset_current
I_VportP + I_Rtn
1.8
5
mA
VPORTP = RTN = 1.4 V
Sleep_current
I_VportP + I_Rtn
15
25
mA
VPORTP = RTN = 9.5 V
CLASSIFICATION
Vcl
Input supply voltage classification range
13
20.5
V
Iclass0
Class 0: Rclass 10 kW (Note 5)
0
4
mA
Iclass0 = I_VportP + I_Rdet
Iclass1
Class 1: Rclass 130 W (Note 5)
9
12
mA
Iclass1 = I_VportP + I_Rdet
Iclass2
Class 2: Rclass 69.8 W (Note 5)
17
20
mA
Iclass2 = I_VportP + I_Rdet
Iclass3
Class 3: Rclass 44.2 W (Note 5)
26
30
mA
Iclass3 = I_VportP + I_Rdet
Iclass4
Class 4: Rclass 30.9 W (Note 5)
36
44
mA
Iclass4 = I_VportP + I_Rdet
IDC
class
Internal current consumption during
classification (Note 6)
600
mA
For information only
UVLO
Vuvlo_on
Default turn on voltage (VportP rising)
38
40
V
UVLO pin tied to
VPORTN
1,2
Vuvlo_off
Default turn off voltage (VportP falling)
29.5
32
V
UVLO pin tied to
VPORTN
1,2
Vhyst_int
UVLO internal hysteresis
6
V
UVLO pin tied to
VPORTN
1,2
Vuvlo_pr
UVLO external programming range
25
50
V
UVLO pin connected to the
resistor divider (R1 & R2).
For information only
Vhyst_ext
UVLO external hysteresis
15
%
UVLO pin connected to the
resistor divider (R1 & R2)
Uvlo_Filter
UVLO on/off filter time
90
mS
4. Test done according to the IEEE802.3af 2 Point Measurement. The minimum probe voltages measured at the PoEPD are 1.4 V and 2.4 V,
and the maximum probe voltages are 8.5 V and 9.5 V.
5. Measured with an external Rdet of 25.5 kW between VPORTP and VPORTN
1,2
, and for 13 V < VPORT < 20.5 V (with VPORT = VPORTP
VPORTN
1,2
). Resistors are assumed to have 1% accuracy.
6. This typical current excludes the current in the Rclass and Rdet external resistors.
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| NCP1081DER2G | 功能描述:DC/DC 开关控制器 POE-PD 40W DC-DC RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
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