参数资料
型号: NCP1081DEG
厂商: ON Semiconductor
文件页数: 10/18页
文件大小: 257K
描述: IC CONV CTLR POE-PD 40W 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:
电流限制: 1.1A
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
NCP1081
http://onsemi.com
10
Table 3. OPERATING CONDITIONS
Symbol
Parameter
Min.
Typ.
Max.
Units
Conditions
CURRENT CONSUMPTION
IvportP
1
VPORTP internal current consumption
(Note 12)

2.5
3.5
mA
DCDC controller off
IvportP
2
VPORTP internal current consumption
(Note 13)

4.7
6.5
mA
DCDC controller on
THERMAL SHUTDOWN
TSD
Thermal shutdown threshold
150


癈 Tj
Tj = junction temperature
Thyst
Thermal hysteresis

15

癈 Tj
Tj = junction temperature
THERMAL RATINGS
Ta
Ambient temperature
40

85
Tj
Junction temperature


125
150
Parametric values guaranteed
Max 1000 hours
12.Conditions
a. No current through the passswitch
b. DCDC controller inactive (SS shorted to RTN)
c. No external load on VDDH and VDDL
d. VPORTP = 57 V
13.Conditions
a. No current through the passswitch
b. Oscillator frequency = 100 kHz
c. No external load on VDDH and VDDL
d. Aux winding not used
e. 2 nF on GATE, DCDC controller enabled
f. VPORTP = 57 V
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