V6319TSP3B [EMMICRO]
3-Pin Microprocessor Reset Circuit; 3引脚微处理器复位电路
| 型号： | V6319TSP3B |
| 厂家： | 
EM MICROELECTRONIC - MARIN SA |
| 描述： | 3-Pin Microprocessor Reset Circuit |
| 文件： | 总6页 (文件大小：709K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
R
EM MICROELECTRONIC - MARIN SA
V6309
V6319
3-Pin Microprocessor Reset Circuit
Description
Features
The V6309 and V6319 are microprocessor supervisory
circuits used to monitor the power supplies in µP 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.
! 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
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.
RESET output for V6319
! 16 µA 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
Low supply current makes the V6309/V6319 ideal for use in
portable equipment. The V6309/V6319 come in a 3-pin
SOT23 package.
! Controllers
! Intelligent instruments
! Critical µP and µC power monitoring
! Portable/battery-powered equipment
Typical Operating Configuration
Pin Assignment
SOT23-3L
VDD
VDD
VDD
VDD
3
Micro-
processor
V6309
V6309/19
RES
RES
1
2
VSS
VSS
VSS
RES / RES
Fig. 2
Fig. 1
Pin Description
Pin
1
Name
VSS
Function
Ground
2
for V6309
RESET Output remains low while
RESET
VDD is below the reset threshold and
rises for 240ms after VDD above the
reset threshold
2
3
for V6319
RESET
RESET Output remains high while
VDD is below the reset threshold and
rises for 240ms after VDD above the
reset threshold
Supply voltage (+5V, +3.3V or
+3.0V)
VDD
Table 1
Copyright © 2006, EM Microelectronic-Marin SA
03/06 – rev.G
1
www.emmicroelectronic.com
R
V6309
V6319
Absolute Maximum Ratings
Parameter
Terminal voltage to VSS
Min. voltage at RESET or
Symbol
VDD
Conditions
-0.3V to + 6.0V
Stresses above these listed maximum ratings may cause
permanent damages to the device. Exposure beyond
specified operating conditions may affect device reliability or
cause malfunction.
Vmin
-0.3V
RESET
Maximum voltage at RESET or
Handling Procedures
Vmax
Imin
Imax
tR
VCC + 0.3V
20 mA
This device has built-in protection against high static
voltages or electric fields; however, it is advised that normal
precautions be taken as for any other CMOS component.
Unless otherwise specified, proper operation can only occur
when all terminal voltages are kept within the voltage range.
RESET
Input current at VDD
Output current at RESET or
20 mA
RESET
Rate of rise at VDD
100Vµs
Continuous power dissipation at
TA = +70°C for SOT-23
Pmax
320 mW
(>70°C derate by 4 mW/°C)
Operating temperature range
Storage temperature range
TA
TST
-40 to +125°C
-65°C to +150°C
Table 2
Electrical Characteristics
VDD = full range, TA = -40 to +125°C, unless otherwise specified, typical values at TA = +25°C, VDD = 5V for versions L and M,
V
DD = 3.3V for versions T and S, VDD = 3 V for R. (Production testing done at TA = +25°C and 85°C, over temperature limits
guaranteed by design only)
Parameter
Symbol
VDD
Test Conditions
TA = 0 to +70°C
Min.
1.0
Typ.
Max.
5.5
Unit
V
VDD range
TA = -40 to +105C
TA = -40 to +125°C
1.2
1.6
5.5
5.5
V
V
Supply current
versions L, M
versions R, S, T
RESET threshold 1)
version L
ICC
VDD < 5.5V
VDD < 3.6V
26
16
60
50
µA
µA
VTH
TA = +25°C
TA = -40 to +125°C
TA = +25°C
TA = -40 to +125°C
TA = +25°C
TA = -40 to +125°C
TA = +25°C
TA = -40 to +125°C
TA = +25°C
TA = -40 to +125°C
4.56
4.40
4.31
4.16
3.04
2.92
2.89
2.78
2.59
2.50
4.63
4.38
3.08
2.93
2.63
4.70
4.79
4.45
4.53
3.11
3.17
2.96
3.02
2.66
2.72
V
V
V
V
V
V
V
V
version M
version T
version S
version R
V
V
Reset threshold temp. coefficient
VDD to reset delay 1)
Reset active timeout period
-200
7
330
ppm/°C
µs
ms
VDD = VTH to (VTH – 100mV)
TA = -40 to °125°C
140
590
RESET output voltage low for V6309
versions R, S, T
VOL
VDD > 1.0V, ISINK = 50µA
VDD = VTH min., ISINK = 1.2mA
VDD = VTH min., ISINK = 3.2mA
0.3
0.3
0.4
V
V
V
versions L, M
RESET output voltage high for V6309
versions R, S, T
VOH
VDD = VTH max., ISOURCE = 500µA
VDD = VTH max., ISOURCE = 800µA VDD-1.5V
0.8 VDD
V
V
versions L, M
RESET output voltage low for V6319
versions R, S, T
versions L, M
RESET output voltage high for V6319
VOL
VOH
VDD = VTH max., ISINK = 1.2mA
VDD = VTH max., ISINK = 3.2mA
0.3
0.4
V
V
V
1.8V < VDD < VTH min.,
SOURCE = 150µA
0.8 VDD
I
Table 3
1)
RESET output for V6309 , RESET output for V6319
Copyright © 2006, EM Microelectronic-Marin SA
03/06 – rev.G
2
www.emmicroelectronic.com
R
V6309
V6319
Supply Current vs Temperature
Power-Down Reset Delay vs Temperature
No load, V63xxR/S/T
V63xxR/S/T
Fig. 6
Fig. 7
Fig. 8
Fig. 3
Power-Down Reset Delay vs Temperature
V63xxL/M
Supply Current vs Temperature
No load, V63xxL/M
Fig. 4
Normalized Reset Threshold vs Temperature
All versions
Power-Up Reset Timeout vs Temperature
All versions
Fig. 5
Copyright © 2006, EM Microelectronic-Marin SA
03/06 – rev.G
3
www.emmicroelectronic.com
R
V6309
V6319
RESET Valid for VDD = Ground Circuit
Application Information
Negative-Going VDD Transients
In addition to issuing a reset to the microprocessor during
power-up, power-down and brownout conditions, the
V6309/V6319 are relatively immune to short duration
negative-doing VDD transients (glitches). Fig. 8 shows
typical transient duration vs. Reset comparator overdrive,
for which the V6309/V6319 do not generate a reset pulse.
The graph was generated using a negative-going pulse
applied to VDD, starting 0.5V above the actual reset
threshold and ending below it by the magnitude indicated
(reset comparator overdrive). The graph indicates the
maximum pulse width a negative-going VDD transient can
have without causing a reset pulse. As the magnitude of
the transient increases (goes farther below the reset
threshold), the maximum allowable pulse width decreases.
Typically, for the V6309L and V6319M, a VDD transient that
goes 100V below the reset threshold and lasts 20µs or less
will not cause a reset pulse. A 0.1µF bypass capacitor
mounted as close as possible to the VDD pin provides
additional transient immunity.
VDD
RES
V6309
100 kΩ
VSS
Fig. 10
Interfacing to µPs with Bidirectional Reset Pins
Microprocessors with bidirectional reset pins (such as the
Motorola 68HC11 series) can connect to the V6309 reset
output. If, for example, the V6309 RESET output is
asserted high and the µP wants to pull it low, indeterminate
Max. Transient Duration without causing a Reset Pulse
versus Reset Comparator Overdrive
logic levels may result. To correct this, connect a 4.7 k
Ω
resistor between the V6309 RESET and the µP reset I/O
(Fig. 11). Buffer the V6309 RESET output to other system
components.
Interfacing to µPs with Bidirectional Reset I/O
Buffer RES to
Buffer
other system
components
VDD
VDD
RES
RES
4.7k
Ω
µP
V6309
VSS
Fig .9
VSS
Ensuring a Valid Reset Output down to VDD = 0V
When VDD falls below 1V, the V6309 RESET output no
longer sinks current, it becomes an open circuit.
Therefore, high-impedance CMOS logic inputs connected
to RESET can drift to undetermined voltages. This
presents no problem in most applications, since most µP
and other circuitry is inoperative with VDD below 1V.
Fig. 11
Benefits of Highly Accurate Reset Threshold
Most µP supervisor ICs have reset threshold voltages
between 5% and 10% below the value of nominal supply
voltages. This ensures a reset will not occur within 5% of
the nominal supply, but will occur when the supply is 10%
below nominal. When using ICs rated at only the nominal
supply ±5%, this leaves a zone of uncertainty where the
supply is between 5% and 10% low, and where the reset
may or may not be asserted.
However, in applications where RESET must be valid
down to 0V, adding a pull-down resistor to RESET causes
any stray leakage currents to flow to ground, holding
RESET low (Fig. 10). R1's value is not critical; 100 k
large enough not to load RESET and small enough to pull
RESET to ground. A 100 k pull-up resistor to VDD is also
Ω is
Ω
The V6209/T and V6319/T use highly accurate circuitry to
ensure that reset is asserted close to the 5% limit, and long
before the supply has declined to 10% below nominal.
recommended for the V6319, if RESET is required to
remain valid for VDD < 1V.
Copyright © 2006, EM Microelectronic-Marin SA
03/06 – rev.G
4
www.emmicroelectronic.com
R
V6309
V6319
Packaging and Ordering Information
Dimensions of SOT23-3L Package
SOT23-3L
D
E
C
A1 A2 A
L
B
H
SYMBOL MIN TYP MAX
e
A
0.89 1.04 1.12
0.013 0.10
0.95 0.97 1.00
0.37 0.51
A1
A2
B
C
D
E
e
0.085 0.12 0.18
2.80 2.95 3.04
1.20 1.32 1.40
0.95
e1
H
L
1.78 1.90 2.05
2.10 2.40 2.64
0.55
e1
Dimensions are in mm
Ordering Information
When ordering, please always specify the complete Part Number. Please contact EM Microelectronic for availability.
Part Number
Threshold
Voltage
Output Type
Package &
Delivery Form
Top Marking 1)
Top Marking 2)
with 4
Characters
AEAR
Top Marking 3)
with 3
Characters
V6309RSP3B
V6309RSP3B+
V6309SSP3B
V6309SSP3B+
V6309TSP3B
V6309TSP3B+
V6309MSP3B
V6309MSP3B+
V6309LSP3B
V6309LSP3B+
V6319RSP3B
V6319SSP3B
V6319TSP3B
V6319MSP3B
V6319MSP3B+
V6319LSP3B
2.63V
2.63V
2.93V
2.93V
3.08V
3.08V
4.38V
4.38V
4.63V
4.63V
2.63V
2.93V
3.08V
4.38V
4.38V
4.63V
ER#
EK##
AT##
BT##
BEAR
AEAS
BEAS
AEAT
ES#
ET#
EM#
EL#
SOT23-3L,
Tape & Reel
3000 pces
Active low
push-pull
EF##
E9##
E6##
BEAT
AEAM
BEAM
AEAL
BEAL
AFAR
AFAS
AFAT
AFAM
BFAM
AFAL
FR#
FS#
FT#
FM#
SOT23-3L,
Tape & Reel
3000 pces
Active high
push-pull
P0##
E5##
FL#
1)
2)
3)
Top marking is the standard from 2006. No bottom marking exists. Where ## refers to the lot number (EM internal
reference only)
Top marking with 4 characters is standard from 2003. For lead-free/green mold (RoHS) parts, the first letter of top
marking with 4 characters begins with letter “B” instead of letter “A”. Bottom marking indicates the lot number.
Top marking with 3 characters is kept as information since it was used until 2002.
Where # refers to the lot number (EM internal reference only)
Traceability for Small Packages
Due to the limited space on the package surface, the bottom marking contains a limited number of characters that provide
only partial information for lot traceability. Full information for complete traceability is however provided on the packing
labels of the product at delivery from EM. It is highly recommended that the customer insures full lot traceability of EM
product in his final product.
Copyright © 2006, EM Microelectronic-Marin SA
03/06 – rev.G
5
www.emmicroelectronic.com
R
V6309
V6319
Samples
Part Number
Part Number
V6319TSP3B
V6319MSP3B+
V6309LSP3B+
V6309MSP3B+
V6309RSP3B+
V6309SSP3B+
V6309TSP3B+
Sample stock is generally held on versions list above. Please contact factory for other versions not shown here.
EM Microelectronic-Marin SA (EM) makes no warranty for the use of its products, other than those expressly contained in the Company's
standard warranty which is detailed in EM's General Terms of Sale located on the Company's web site. EM assumes no responsibility for
any errors which may appear in this document, reserves the right to change devices or specifications detailed herein at any time without
notice, and does not make any commitment to update the information contained herein. No licenses to patents or other intellectual property
of EM are granted in connection with the sale of EM products, expressly or by implications. EM's products are not authorized for use as
components in life support devices or systems.
Copyright © 2006, EM Microelectronic-Marin SA
03/06 – rev.G
6
www.emmicroelectronic.com
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