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參數資料
| 型號： | V6319LSP3B |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO3 |
| 封裝： | SOT-23, 3 PIN |
| 文件頁數： | 1/6頁 |
| 文件大小： | 708K |
| 代理商： | V6319LSP3B |
R
V6309
V6319
Copyright 2006, EM Microelectronic-Marin SA
03/06 – rev.G
1
www.emmicroelectronic.com
3-Pin Microprocessor Reset Circuit
Description
The V6309 and V6319 are microprocessor supervisory
circuits used to monitor the power supplies in P and digital
systems. They provide excellent circuit reliability and low
cost by eliminating external components and adjustments
when used with 5V powered or 3V powered circuits.
These circuits perform a single function: they assert a reset
signal whenever the VDD supply voltage declines below a
preset threshold, keeping it asserted for at least 140ms after
VDD has risen above the reset threshold. The only difference
between the two devices is that the V6309 has an active-low
RESET output (which is guaranteed to be in the correct
state for VDD down to 1V), while the V6319 has an active-
high RESET output. The reset comparator is designed to
ignore fast transients on VDD. Reset thresholds suitable for
operation with a variety of supply voltages are available.
Low supply current makes the V6309/V6319 ideal for use in
portable equipment. The V6309/V6319 come in a 3-pin
SOT23 package.
Features
!
Precision monitoring of 3V, 3.3V and 5V power supply
voltages
!
Fully specified over the temperature range of
-40 to +125°C
!
140ms minimum power-on reset pulse width:
RESET output for V6309
RESET output for V6319
!
16 A supply current
!
Guaranteed RESET/RESET valid to VDD = 1V
!
Power supply transient immunity
!
No external components needed
!
3-pin SOT23 package
!
Fully compatible with MAX809/MAX810
Applications
!
Computer
!
Controllers
!
Intelligent instruments
!
Critical P and C power monitoring
!
Portable/battery-powered equipment
Typical Operating Configuration
Micro-
processor
VDD
VSS
RES
VDD
RES
V6309
Fig. 1
Pin Assignment
V6309/19
3
2
1
VDD
VSS
RES / RES
SOT23-3L
Fig. 2
Pin Description
Pin
Name
Function
1
VSS
Ground
2
for V6309
RESET
RESET Output remains low while
VDD is below the reset threshold and
rises for 240ms after VDD above the
reset threshold
2
for V6319
RESET
RESET Output remains high while
VDD is below the reset threshold and
rises for 240ms after VDD above the
reset threshold
3
VDD
Supply voltage (+5V, +3.3V or
+3.0V)
Table 1
EM MICROELECTRONIC - MARIN SA
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