参数资料
型号: TPS2371DR
厂商: Texas Instruments
文件页数: 17/19页
文件大小: 0K
描述: IC PWR INTRFCE SW FOR POE 8-SOIC
标准包装: 2,500
应用: 用于以太网供电(PoE)设备的电源接口开关
接口: IEEE 802.3af
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SOIC
包装: 带卷 (TR)
安装类型: 表面贴装
TPS2371
SLUS566A JULY 2003 REVISED NOVEMBER 2003
7
www.ti.com
STATE DIAGRAM
YES
NO
YES
NO
Power
Down
DETECTION
VDD < 10 V
IDD = VDD/(RDET) || 1 M
Switch Resistance > 100 M
CLASSIFICATION
10 V < VDD < 22 V
IDD 10 V/(RCLASS)
Switch Resistance > 100 M
INRUSH MODE
VDD > 36 V (rising edge)
VRTN > 1.5 V
IRET = IINRUSH = 450 mA (25 k/RLIM) x (1 A)
Switch Resistance
≈ 100
NORMAL OPERATION
VDD > 30 V
(IRET = ILOAD) < 450 mA
Switch Resistance
≈ 0.3
OVERLOAD/FAULT
VDD > 30 V
IRET = 450 mA
Switch Resistance
≈ 100
TJ < 145 _C?
THERMAL SHUTDOWN
VDD > 30 V
IDD < 1 mA
Switch Resistance > 100 M
TSD
Count < 7?
LATCH OFF
VDD > 30 V
IDD < 1 mA
Switch Resistance
> 100
M
MACHINE STATE
0
50
Classification
(Falling Edge)
44
57
UVLO ON
(Rising Edge)
2
4
6
8
10
15
20
30.5
25
35
UVLO OFF
Detection
(RLOAD =25k)
Normal Operation
(IDD = 450 mA)
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TPS2371PWRG4 功能描述:热插拔功率分布 Legacy/IEEE802.3af Comp Pwr InterfSw RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube