Datasheet 搜索 > 电源监控芯片 > TI（德州仪器） > TPS3808G01DBVTG4 数据手册 > TPS3808G01DBVTG4 数据手册 1/23 页
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TPS3808G01DBVTG4 数据手册 - TI（德州仪器）
制造商:
TI（德州仪器）
分类:
电源监控芯片
封装:
SOT-23-6
描述:
TEXAS INSTRUMENTS TPS3808G01DBVTG4 芯片, 监控电路
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
封装尺寸在P10P11P12P13P15P16P17
封装信息在P10P11P12P13P14P15P16P17
应用领域在P23
导航目录
TPS3808G01DBVTG4数据手册
Page:
of 23 Go
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1
FEATURES DESCRIPTION
APPLICATIONS
RESET
GND
MR
6
5
4
V
DD
SENSE
C
T
1
2
3
DRVPACKAGE
2mmx2mmQFN
(TOPVIEW)
Power
PAD
DBVPACKAGE
SOT23
(TOPVIEW)
V
DD
SENSE
C
T
RESET
GND
MR
1
2
3
6
5
4
1.2V 3.3V
TPS3808G12 TPS3808G33 DSP
SENSE V
DD
V
DD
SENSE
V
I/O
V
CORE
GPIO
GNDGNDGND
RESET MR
C
T
C
T
RESET
TypicalApplicationCircuit
TPS3808
www.ti.com
.......................................................................................................................................................... SBVS050J – MAY 2004 – REVISED AUGUST 2008
Low Quiescent Current, Programmable-Delay
Supervisory Circuit
23
• Power-On Reset Generator with Adjustable
The TPS3808xxx family of microprocessor
Delay Time: 1.25ms to 10s
supervisory circuits monitor system voltages from
0.4V to 5.0V, asserting an open-drain RESET signal
• Very Low Quiescent Current: 2.4 µ A typ
when the SENSE voltage drops below a preset
• High Threshold Accuracy: 0.5% typ
threshold or when the manual reset ( MR) pin drops to
• Fixed Threshold Voltages for Standard Voltage
a logic low. The RESET output remains low for the
Rails from 0.9V to 5V and Adjustable Voltage
user-adjustable delay time after the SENSE voltage
Down to 0.4V Are Available
and manual reset ( MR) return above the respective
thresholds.
• Manual Reset ( MR) Input
The TPS3808 uses a precision reference to achieve
• Open-Drain RESET Output
0.5% threshold accuracy for V
IT
≤ 3.3V. The reset
• Temperature Range: – 40 ° C to +125 ° C
delay time can be set to 20ms by disconnecting the
• Small SOT23 and 2mm × 2mm QFN Packages
C
T
pin, 300ms by connecting the C
T
pin to V
DD
using
a resistor, or can be user-adjusted between 1.25ms
and 10s by connecting the C
T
pin to an external
capacitor. The TPS3808 has a very low typical
• DSP or Microcontroller Applications
quiescent current of 2.4 µ A so it is well-suited to
• Notebook/Desktop Computers
battery-powered applications. It is available in a small
• PDAs/Hand-Held Products
SOT23 and an ultra-small 2mm × 2mm QFN
• Portable/Battery-Powered Products
PowerPAD™ package, and is fully specified over a
• FPGA/ASIC Applications
temperature range of – 40 ° C to +125 ° C (T
J
).
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2 PowerPAD is a trademark of Texas Instruments.
3 All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2004 – 2008, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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