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TPS3808G01DBVR
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TPS3808G01DBVR 用户编程手册 - TI

更新时间: 2024-06-19 15:03:46 (UTC+8)

TPS3808G01DBVR 用户编程手册

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1.5
V (V)
DD
I ( A)
DD
m
-40 C°
25 C
85 C
125 C
°
°
°
1.2 V 3.3 V
TPS3808G12 TPS3808G33 DSP
SENSE V
DD
V
DD
SENSE
V
I/O
V
CORE
GPIO
GNDGNDGND
RESET MR
C
T
C
T
RESET
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An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
TPS3808
SBVS050K MAY 2004REVISED OCTOBER 2015
TPS3808 Low-Quiescent-Current, Programmable-Delay Supervisory Circuit
1
1 Features
1
Power-On Reset Generator with Adjustable Delay
Time: 1.25 ms to 10 s
Very Low Quiescent Current: 2.4 μA Typical
High Threshold Accuracy: 0.5% Typ
Fixed Threshold Voltages for Standard Voltage
Rails from 0.9 V to 5 V and Adjustable Voltage
Down to 0.4 V Are Available
Manual Reset (MR) Input
Open-Drain RESET Output
Temperature Range: –40°C to 125°C
Small SOT-23 and 2-mm × 2-mm WSON
Packages
2 Applications
DSP or Microcontroller Applications
Notebook and Desktop Computers
PDAs and Hand-Held Products
Portable and Battery-Powered Products
FPGA and ASIC Applications
3 Description
The TPS3808 family of microprocessor supervisory
circuits monitors system voltages from 0.4 V to 5 V,
asserting an open-drain RESET signal when the
SENSE voltage drops below a preset threshold or
when the manual reset (MR) pin drops to a logic low.
The RESET output remains low for the user-
adjustable delay time after the SENSE voltage and
manual reset (MR) return above the respective
thresholds.
The TPS3808 device uses a precision reference to
achieve 0.5% threshold accuracy for V
IT
3.3 V. The
reset delay time can be set to 20 ms by
disconnecting the C
T
pin, 300 ms by connecting the
C
T
pin to V
DD
using a resistor, or can be user-
adjusted between 1.25 ms and 10 s by connecting
the C
T
pin to an external capacitor. The TPS3808
device has a very low typical quiescent current of
2.4 μA, so it is well-suited to battery-powered
applications. It is available in the SOT-23 and 2-mm ×
2-mm WSON packages, and is fully specified over a
temperature range of –40°C to 125°C (T
J
).
Device Information
(1)
PART NUMBER PACKAGE BODY SIZE (NOM)
TPS3808
SOT-23 (6) 2.90 mm x 1.60 mm
WSON (6) 2.00 mm x 2.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Typical Application Supply Current vs Supply Voltage
页面指南

TPS3808G01DBVR 数据手册 PDF

TPS3808G01DBVR 数据手册
TI
32 页, 1062 KB
TPS3808G01DBVR 产品设计参考
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17 页, 504 KB
TPS3808G01DBVR 用户编程手册
TI
33 页, 1707 KB
TPS3808G01DBVR 其它数据手册
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24 页, 963 KB
TPS3808G01DBVR 产品修订记录
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11 页, 318 KB

TPS3808G01 数据手册 PDF

TPS3808G01
数据手册
TI
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