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参数资料
| 型号： | TPS3705-50D |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO8 |
| 封装： | GREEN, PLASTIC, SOIC-8 |
| 文件页数： | 22/23页 |
| 文件大小： | 775K |
| 代理商： | TPS3705-50D |
TPS3705xx
TPS3707xx
PROCESSOR SUPERVISORY CIRCUITS WITH POWERFAIL
SLVS184C NOVEMBER 1998 REVISED DECEMBER 2005
8
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
timing requirements at RL = 1 M, CL = 50 pF, TA = 25°C
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
at VDD
VDD = VIT+ + 0.2 V,
VDD = VIT0.2 V
6
s
tw
Pulse width
at MR
VDD ≥ VIT++ 0.2 V,
VIL = 0.3 × VDD,
VIH = 0.7 × VDD
100
ns
tw
Pulse width
at WDI
VDD ≥ VIT++ 0.2 V,
VIL = 0.3 × VDD,
VIH = 0.7 × VDD
100
ns
switching characteristics at RL = 1 M, CL = 50 pF, TA = 25°C
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
tt(out) Watchdog time out
VDD ≥ VIT+ + 0.2 V,
See timing diagram
1.1
1.6
2.3
s
td
Delay time
VDD > VIT+ + 0.2 V,
See timing diagram
140
200
280
ms
tPHL
Propagation (delay) time, high-to-low-level
output
MR to RESET delay
VDD ≥ VIT+ + 0.2 V,
VIL = 0.3 × VDD
50
250
ns
tPLH
Propagation (delay) time, low-to-high-level
output
MR to RESET delay
(TPS3707xx only)
DD
IT+
VIL = 0.3 × VDD
VIH = 0.7 × VDD
50
250
ns
tPHL
Propagation (delay) time, high-to-low-level
output
VDD to RESET delay
3
5
s
tPLH
Propagation (delay) time, low-to-high-level
output
VDD to RESET delay
(TPS3707-xx only)
3
5
s
tPHL
Propagation (delay) time, high-to-low-level
output
PFI to PFO delay
VDD = 2 V to 6 V
0.5
1
s
tPLH
Propagation (delay) time, low-to-high-level
output
PFI to PFO delay
VDD = 2 V to 6 V
0.5
1
s
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| TPS3705-50DGNG4 | 功能描述:监控电路 Processor with Power-Fail 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 |
| TPS3705-50DGNR | 功能描述:监控电路 4.55V Monitor 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 |
| TPS3705-50DGNRG4 | 功能描述:监控电路 Processor with Power-Fail 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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