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参数资料
| 型号： | TPS3305-18DGNRG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | 2-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO8 |
| 封装： | GREEN, PLASTIC, MSOP-8 |
| 文件页数： | 12/17页 |
| 文件大小： | 650K |
| 代理商： | TPS3305-18DGNRG4 |
www.ti.com
MR
t
V
(nom)
V
IT
-
SENSEn
WDI
RESET
0
1
0
1
0
1
t
t(out)
t
d
t
d
t
d
t
d
RESETbecauseofWDI
RESETbecauseof MR
RESETbecauseofSENSEbelowV
IT
-
RESETbecauseofSENSEbelowV
IT
-
RESETbecause
ofSENSEbelowV
IT
-
TIMING REQUIREMENTS
SWITCHING CHARACTERISTICS
SLVS198C – DECEMBER 1998 – REVISED MARCH 2008
TIMING DIAGRAM
At VDD = 2.7V to 6V, RL = 1M, CL = 50pF, and TJ = +25°C.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SENSEn
VSENSEnL = VIT– –0.2V, VSENSEnH = VIT+ +0.2V
6
s
tw
Pulse width
MR
100
ns
VIH = 0.7 × VDD, VIL = 0.3 × VDD
WDI
100
ns
At VDD = 2.7V to 6V, RL = 1M, CL = 50pF, and TJ = +25°C.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VI(SENSEn) ≥ VIT+ +0.2V, MR ≥ 0.7 ×
tt(out)
Watchdog time-out
VDD
1.1
1.6
2.3
s
See Timing Diagram
VI(SENSEn) ≥ VIT+ +0.2V, MR ≥ 0.7 × VDD
td
Delay time
140
200
280
ms
See Timing Diagram
Propagation (delay) time,
MR to RESET,
VI(SENSEn) ≥ VIT+ +0.2V,
tPHL
200
500
ns
high-to-low level output
MR to RESET
VIH = 0.7 × VDD, VIL = 0.3 × VDD
Propagation (delay) time,
MR to RESET,
VI(SENSEn) ≥ VIT+ +0.2V,
tPLH
200
500
ns
low-to-high level output
MR to RESET
VIH = 0.7 × VDD, VIL = 0.3 × VDD
Propagation (delay) time,
SENSEn to RESET,
VIH = VIT+ +0.2V, VIL = VIT– –0.2V,
tPHL
1
5
s
high-to-low level output
SENSEn to RESET
MR
≥ 0.7
× V
DD
Propagation (delay) time,
SENSEn to RESET,
VIH = VIT+ +0.2V, VIL = VIT– –0.2V,
tPLH
1
5
s
low-to-high level output
SENSEn to RESET
MR
≥ 0.7
× V
DD
4
Copyright 1998–2008, Texas Instruments Incorporated
Product Folder Link(s): TPS3305
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| TPS3305-18DR | 功能描述:监控电路 Dual Processor RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| TPS3305-18DRG4 | 功能描述:监控电路 Dual Processor RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| TPS3305-25 | 制造商:TI 制造商全称:Texas Instruments 功能描述:双处理器监事 |
| TPS3305-25D | 功能描述:监控电路 Dual Processor RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| TPS3305-25DG4 | 功能描述:监控电路 Dual Processor RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
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