ASM63811UR19TD1G-T [PULSECORE]
Power Supply Support Circuit, Fixed, 1 Channel, PDSO3, GREEN, PLASTIC, SOT-23, 3 PIN;
| 型号： | ASM63811UR19TD1G-T |
| 厂家： | 
PulseCore Semiconductor |
| 描述： | Power Supply Support Circuit, Fixed, 1 Channel, PDSO3, GREEN, PLASTIC, SOT-23, 3 PIN 光电二极管 |
| 文件： | 总15页 (文件大小：150K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ASM6381 - ASM6390
September 2005
rev 1.5
Single/Dual Low Voltage, Low Power Microcontroller Power Supply Supervisor
Low supply current makes the ASM6381 - ASM6390 ideal for
General Description
use in portable and battery operated equipments. The
ASM6381 - ASM6383 are available in a compact, industry
standard 3-pin SC70 package and the ASM6384 - ASM6390
are available in a compact, industry standard 4-pin SC70
The ASM6381 - ASM6390 are cost effective +1.8V to +5V
power supply supervisor circuits optimized for low-power
microprocessor (µP), microcontroller (µC) and digital systems.
They provide a reset output during power-up, power-down and
brown-out conditions. They provide excellent reliability by
eliminating external components and adjustments.
package. The ASM63811, ASM63812,
ASM63832 are
available in 3-pin SOT23 package. ASM63813 is available in
3-pin and 5-pin SOT23 package.
Reset thresholds are available from +1.58V to 4.63V in
approximately 100mV increments to support +1.8V to +5V
systems.
A reset signal is issued if the power supply voltage drops below
a preset reset threshold and is asserted for a minimum reset
timeout period after the supply has risen above the reset
threshold. The reset timeout periods are available from 1ms to
1200ms. The ASM6381, ASM6384 and ASM6387 have a push-
pull active-low reset output. The ASM6382, ASM6385 and
ASM6388 have a push-pull active-high reset output, and the
ASM6383, ASM6386, ASM6389 and ASM6390 have an open-
drain active-low reset output. The ASM6384, ASM6385 and
ASM6386 also feature a manual reset input.
Features:
• Factory-set Reset Threshold Voltages ranging from +1.58V
to 4.63V.
• Monitor 1.8V to 5V supplies.
• Push-Pull Active-low reset valid with 1.0V supply.
• Small 3-pin SC-70, 4-pin SC-70, 3-pin and 5-pin SOT23
packages.
The ASM6387, ASM6388, ASM6389 have an auxiliary input
RESET IN for monitoring a second voltage. The ASM6390
offers a manual reset input with a longer VCC reset timeout
• No external components.
• Specified over full temperature range: -40°C to 125°C
• Seven Reset Timeout periods: 1ms, 20ms, 140ms, 280ms,
560ms, 1120ms, 1200ms (min).
period and a shorter manual reset timeout.
• Low power consumption: 3µA at +1.8V.
• Auxiliary RESET IN
The reset output state is guaranteed to be in the correct logic
state for VCC down to 1V. The reset comparator is designed to
• Manual Reset input.
ignore fast transients on VCC
.
Typical Operating Circuit
VCC
Applications
R1
•
•
•
•
•
•
Embedded controllers
VCC
RESET IN
Portable/Battery operated systems
Intelligent instruments
R2
VCC
µP
Wireless communication systems
PDAs and handheld equipment
Computers
(RESET)
RESET
Input
RESET
(RESET)
MR
GND
GND
Alliance Semiconductor
2575 Augustine Drive . Santa Clara, CA 95054 . Tel: 408.855.4900 . Fax: 408.855.4999 . www.alsc.com
Notice: The information in this document is subject to change without notice
ASM6381 - ASM6390
September 2005
rev 1.5
Pin Diagram
Top View
3SC-70
3SOT23
GND
1
1
RESET
GND
ASM6381
(ASM6382)
ASM6383
3
V
3
ASM63811
CC
V
CC
2
2
RESET
(RESET)
4SC-70
4SC-70
4
V
GND
1
4
3
CC
V
GND
1
2
CC
ASM6387
(ASM6388)
ASM6389
ASM6384
(ASM6385)
ASM6386
ASM6390
2
3
(RESET) RESET
RESET IN
MR
(RESET)
RESET
3SOT23
3SOT23
1
2
GND
RESET
1
2
ASM63812
ASM63832UR
3
V
CC
ASM63813UR
3
GND
RESET
V
CC
5SOT23
1
RESET
5
NC
NC
V
CC
2
3
ASM63813UK
GND
4
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Single/Dual Low Voltage, Low Power Microcontroller Power Supply Supervisor
Notice: The information in this document is subject to change without notice
ASM6381 - ASM6390
September 2005
rev 1.5
Pin Description
Pin #
Pin Name
Function
5SOT23 3SOT23 3SOT23 3SOT23 3SOT23
3SC-70
4SC-70
3
3
1
2
1
1
1
1
2
1
1
2
1
-
GND
Ground.
RESET is asserted
LOW if VCC falls below
VTH and remains LOW
for TRST after VCC
1
1
2
1
2
2
-
-
RESET
exceeds the threshold.
RESET is asserted
HIGH if VCC falls below
VTH and remains HIGH
for TRST after VCC
-
-
-
-
-
-
2
-
2
-
2
RESET
exceeds the threshold.
Manual Reset Input. A
logic LOW on MR
asserts reset. Reset
remains active as long
as MR is LOW and for
TMRST after MR returns
HIGH. The active low
input has an internal
20k. pull-up resistor.
The input should be left
open if not used. It can
be driven by TTL or
-
-
-
-
-
-
-
3
3
-
-
MR
CMOS logic or
shorted to ground by a
switch.
Auxiliary Reset input.
Reset asserts when
either VCC or RESET IN
-
-
-
-
-
-
-
-
-
3
4
3
4
RESETIN
VCC
falls below its threshold
voltage.
Power supply input
voltage.
2
2
3
3
3
3
3
4
4
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Single/Dual Low Voltage, Low Power Microcontroller Power Supply Supervisor
Notice: The information in this document is subject to change without notice
ASM6381 - ASM6390
September 2005
rev 1.5
1.27V, reset is asserted. The RESET IN can be used as a
secondary power supply monitor input by implementing a
resistor divider at RESET IN pin.
Detailed Description
A proper reset input enables a microprocessor or a
microcontroller
to
start
in
a
known
state.
ASM6381 - ASM6390 assert reset to prevent code execution
errors during power-up, power-down and brown-out
conditions.
V
IN
V
CC
R1
Manual Reset (MR) Input
RESET IN
RESET
A logic low on MR asserts reset. MR is internally pulled high
through a 63kΩ resistor (for ASM6381-ASM6389, 1.35KΩ for
ASM6390) and can be driven by TTL/CMOS gates or with
open collector/drain outputs. MR can be left open if not used.
MR may be connected to ground through a normally-open
momentary switch without an external debounce circuit.
R2
GND
Figure 1: RESET IN Comparator
Valid Reset with VCC under 1.0V
A 0.1µF capacitor from MR to ground can be added for
additional noise immunity.
To ensure logic inputs connected to the ASM6381 - ASM6390
are in a known state when VCC is under 1.0V, a 100kΩ pull-
down resistor at RESET is needed. The value is not critical. A
Reset Output Operation
100kΩ pull-up resistor to VCC is needed with the RESET pin.
In µP / µC systems it is important to have the processor and
the system begin operation from a known state. A reset
output to a processor is provided to prevent improper
operations during power supply sequencing or low voltage
brown-out conditions.
VCC
VCC
100kΩ
ASM6381
ASM6384
ASM6387
ASM6382
ASM6385
ASM6388
The ASM6381-ASM6390 are designed to monitor the system
power supply voltages and issue a reset signal when the
levels are out of range. RESET outputs are guaranteed to be
active for VCC above 1.0V. When VCC exceeds the reset
Power Supply
Power Supply
MR
RESET
RESET
MR
100k
Ω
GND
GND
threshold, an internal timer keeps RESET active for the reset
timeout period, after which RESET becomes inactive. If VCC
drops below the reset threshold, RESET automatically
becomes active. Alternatively, external circuitry or an
Figure 2: RESET valid with V under 1.0V
CC
operator
can
initiate
this
condition
using
the
Application Information
Manual Reset (MR) pin. MR can be left open if it is not used.
MR can be driven by TTL/CMOS logic or even an external
switch.
Negative VCC Transients
The ASM6381 - ASM6390 protect µPs from brownouts and
low VCC. Short duration transients of 100mV amplitude and
RESET IN Comparator
Reset asserts when either VCC or RESET IN falls below its
35µs or less duration typically do not cause a false RESET.
respective threshold. RESET IN is compared to an internal
+1.27V reference. If the voltage at RESET IN is less than
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Single/Dual Low Voltage, Low Power Microcontroller Power Supply Supervisor
Notice: The information in this document is subject to change without notice
ASM6381 - ASM6390
September 2005
rev 1.5
Absolute Maximum Ratings Table 1:
Parameter
Min
Max
Units
Pin Terminal Voltage With Respect To Ground
VCC
-0.3
-0.3
6.0
V
V
V
CC + 0.3
RESET, RESET
Input current at VCC
20
20
mA
mA
V/µs
Output current: RESET, RESET
Rate of Rise at VCC
100
ESD rating
HBM
MM
2
200
KV
V
Note: These are stress ratings only and the functional operation is not implied. Exposure to absolute
maximum ratings for prolonged time periods may affect device reliability.
Absolute Maximum Ratings Table 2:
Parameter
Min
Max
Units
Power Dissipation (TA = 70°C)
235
-40
-65
245
125
150
300
mW
°C
Operating temperature range
Storage temperature range
°C
Lead temperature (Soldering, 10 sec)
°C
Note: These are stress ratings only and the functional operation is not implied. Exposure to absolute maximum rat-
ings for prolonged time periods may affect device reliability.
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Single/Dual Low Voltage, Low Power Microcontroller Power Supply Supervisor
Notice: The information in this document is subject to change without notice
ASM6381 - ASM6390
September 2005
rev 1.5
Electrical Characteristics:
Unless otherwise noted, V is over the full voltage range, T = -40°C to 125°C. Typical values at T = 25°C
CC
A
A
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VCC
TA = -40°C to 125°C
Input Voltage Range
1.0
5.5
V
VCC < 5.5V
VCC < 3.6V
7
6
4
3
13
11
7
ICC
VCC Supply Current
µA
VCC < 2.5V
6
VCC < 1.8V
TA = 25°C
VTH - 1.5%
VTH
VTH
VTH + 1.5%
VCC Reset Threshold
(See Table 3)
VTH
V
ppm/°C
µs
TA = -40°C to 125°C
VTH - 2.5%
VTH + 2.5%
Reset Threshold Temp
Coefficient
V
TH/°C
60
35
VCC = VTH+100mV to VTH - 100mV
VCC to Reset Delay
VCC falling at 10mV/µs
D1
D2
D3
D5
D6
D4
D7
1
2
40
20
140
280
560
1120
1200
140
150
1120
1200
280
ASM6381 - ASM6389
Reset Active Timeout
Period
tRP
560
ms
(See Table 4)
1120
2240
2400
280
D4
D7
D4
D7
MR timeout period
VCC timeout period
300
tRP
Reset Timeout Period
(ASM6390)
ms
2240
2400
0.3 VCC
VIL
VIH
VIL
VIH
VTH < 4V
0.7 VCC
MR Input Voltage
V
0.8
VTH > 4V
2.4
1
MR Minimum Input
Pulse Width
tMR
µs
Notes:
1. Production testing done at TA = 25°C. Over-temperature specifications guaranteed by design only, using six sigma design limits.
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Single/Dual Low Voltage, Low Power Microcontroller Power Supply Supervisor
Notice: The information in this document is subject to change without notice
ASM6381 - ASM6390
September 2005
rev 1.5
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
MR Glitch Immunity
100
ns
MR to Reset Propaga-
tion Delay
tMD
200
ns
ASM6381 - ASM6389
ASM6390
32
0.8
63
100
2.3
kΩ
kΩ
V
MR Internal Pullup
Resistance
1.35
TA = +25°C
1.245
1.295
RESET IN Input
Threshold
VTHRST
TA = 0°C to +85°C
1.232
1.219
1.27
1.308
1.321
V
V
TA = -40°C to +125°C
V
RESETIN = VTHRST + 40mV to
VTHRST - 40mV
RESETIN falling at 4mV/µs
RESET IN to RESET
Delay
4.5
±1
µs
V
RESET IN Input Leak-
age Current
IRESETIN
-50
+50
0.4
0.3
0.3
nA
VCC>=4.5V, ISINK = 3.2mA
VCC>=2.5V, ISINK = 1.2mA
Open-Drain RESET
Output Voltage
VOL
V
VCC > 1.0V, ISINK = 80µA
Open-Drain RESET
Output Leakage Cur-
rent
ILKG
VCC > VTH
1.0
µA
V
CC >=4.5V, ISOURCE = 800µA
CC > 2.5V, ISOURCE = 500µA
0.8VCC
0.8VCC
VOH
V
Push-Pull RESET Out-
put Voltage
V
VCC>=4.5V, ISINK = 3.2mA
0.4
0.3
0.3
VOL
V
CC>= 2.5V, ISINK = 1.2mA
CC>= 1.0V, ISINK = 80µA
V
Notes:
1. Production testing done at TA = 25°C. Over-temperature specifications guaranteed by design only, using six sigma design limits.
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Single/Dual Low Voltage, Low Power Microcontroller Power Supply Supervisor
Notice: The information in this document is subject to change without notice
ASM6381 - ASM6390
September 2005
rev 1.5
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VCC >=4.5V, ISOURCE = 800µA
VCC >=2.5V, ISOURCE = 500µA
VCC >=1.8V, ISOURCE = 150µA
VCC > 1.0V, ISOURCE = 1µA
VCC>= 4.5V, ISINK = 3.2mA
VCC>= 2.5V, ISINK = 1.2mA
0.8VCC
0.8VCC
0.8VCC
0.8VCC
VOH
Push-Pull RESET Out-
put Voltage
V
VOL
0.4
0.3
Notes:
1. Production testing done at TA = 25°C. Over-temperature specifications guaranteed by design only, using six sigma design limits.
Reset Thresholds (-40°C to +125°C): Table 3
VTH(min)
VTH(nom)
VTH(max)
SUFFIX
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
4.51
4.39
4.27
4.19
4.10
4.00
3.90
3.80
3.71
3.61
3.51
3.41
3.32
3.22
3.12
3.00
2.93
2.85
2.73
4.63
4.50
4.38
4.30
4.20
4.10
4.00
3.90
3.80
3.70
3.60
3.50
3.40
3.30
3.20
3.08
3.00
2.93
2.80
4.74
4.61
4.48
4.41
4.31
4.20
4.10
4.00
3.90
3.79
3.69
3.59
3.49
3.38
3.28
3.15
3.08
3.00
2.87
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Single/Dual Low Voltage, Low Power Microcontroller Power Supply Supervisor
Notice: The information in this document is subject to change without notice
ASM6381 - ASM6390
September 2005
rev 1.5
VTH(min)
VTH(nom)
VTH(max)
SUFFIX
27
26
25
24
23
22
21
20
19
18
17
16
2.63
2.56
2.44
2.34
2.26
2.13
2.05
1.95
1.85
1.76
1.62
1.54
2.70
2.63
2.50
2.40
2.31
2.19
2.10
2.00
1.90
1.80
1.67
1.58
2.77
2.69
2.56
2.46
2.37
2.24
2.15
2.05
1.95
1.85
1.71
1.61
Reset Timeout Delay: Table 4
SUFFIX
MIN
D1
1ms
20ms
D2
D3
140ms
D5
280ms
D6
560ms
D4
1120ms
1200ms
1120/140ms*
1200/150ms*
D7
ASM6390XSyyTD4
ASM6390XSyyTD7
* The ASM6390 has a 1120ms or 1200ms RESET
timeout and a 140ms or 150ms MR timeout.
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Single/Dual Low Voltage, Low Power Microcontroller Power Supply Supervisor
Notice: The information in this document is subject to change without notice
ASM6381 - ASM6390
September 2005
rev 1.5
Selection Guide
Part
Number
Output
Stage
RESET
Polarity
3SC-70
Package
4SC-70
Package
MR
RESET IN
3SOT-23
5SOT-23
ASM6381
ASM6382
ASM6383
ASM6384
ASM6385
ASM6386
ASM6387
ASM6388
ASM6389
ASM6390
ASM63811
ASM63812
ASM63813
ASM63832
Push-Pull
LOW
HIGH
LOW
LOW
HIGH
LOW
LOW
HIGH
LOW
LOW
LOW
LOW
LOW
LOW
Push-Pull
Open-Drain
Push-Pull
Push-Pull
Open-Drain
Push-Pull
Push-Pull
Open-Drain
Open-Drain
Push-Pull
Push-Pull
Push-Pull
Open-Drain
Ordering Information
Part Number**
Temperature Range
Package
-40°C to +125°C
SC70-3
ASM6381XRyyTzza
ASM6382XRyyTzza
ASM6383XRyyTzza
ASM6384XSyyTzza
ASM6385XSyyTzza
ASM6386XSyyTzza
ASM6387XSyyTzza
ASM6388XSyyTzza
ASM6389XSyyTzza
ASM6390XSyyTzza*
ASM63811URyyTzza
ASM63812URyyTzza
ASM63813URyyTzza
ASM63813UKyyTzza
ASM63832URyyTzza
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
SC70-3
SC70-3
SC70-4
SC70-4
SC70-4
SC70-4
SC70-4
SC70-4
SC70-4
SOT23-3
SOT23-3
SOT23-3
SOT23-5
SOT23-3
yy - Insert Threshold Voltage suffix (See Table 3) before ‘T’.
zz - Insert Reset timeout delay suffix (see Table 4) after ‘T’.
* - ASM6390 is available with D4 or D7 timing only.
** - Add ‘-T’ at the end for Tape and Reel.
a - Insert ‘F’ for Lead Free parts and ‘G’ for Green parts.
Note: All Alliance Semiconductor Lead Free parts are RoHS compliant. All parts are Lead Free by default. Contact factory for Non
Lead Free parts.
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Single/Dual Low Voltage, Low Power Microcontroller Power Supply Supervisor
Notice: The information in this document is subject to change without notice
ASM6381 - ASM6390
September 2005
rev 1.5
Package Dimensions
SC-70 (3 PIN)
Dimensions
Symbol
Inches
Millimeters
Min
Max
Min
Max
E
0.045
0.053
1.15
1.35
D
He
A
0.073
0.071
0.031
0.031
0.000
0.010
0.089
0.094
0.043
0.039
0.004
0.016
1.85
1.8
2.25
2.4
1.1
1.0
0.1
0.4
0.8
A2
A1
b
0.8
0.0
0.25
e
0.026 BSC
0.65 BSC
c
0.004
0.010
0.007
0.018
0.1
0.18
0.46
L
0.26
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Single/Dual Low Voltage, Low Power Microcontroller Power Supply Supervisor
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ASM6381 - ASM6390
September 2005
rev 1.5
SC-70 (4 PIN)
Inches
Millimeters
Symbol
Min
Max
Min
Max
E
0.045
0.053
1.15
1.35
D
He
A
0.073
0.071
0.031
0.031
0.000
0.010
0.022
0.089
0.094
0.043
0.039
0.004
0.016
0.028
1.85
1.8
2.25
2.4
1.1
1.0
0.1
0.4
0.7
0.8
A2
A1
b
0.8
0.0
0.25
0.55
b1
e
0.026 BSC
0.65 BSC
c
0.004
0.010
0.007
0.018
0.1
0.18
0.46
L
0.26
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Single/Dual Low Voltage, Low Power Microcontroller Power Supply Supervisor
Notice: The information in this document is subject to change without notice
ASM6381 - ASM6390
September 2005
rev 1.5
Plastic SOT-23 (3-Pin)
Symbol
Dimensions
Inches
Min
Millimeters
Max
Inches
Min
Millimeters
Max
A
A1
B
0.030
0.002
0.012
0.003
0.110
0.047
0.046
0.006
0.020
0.008
0.120
0.055
0.75
0.05
0.30
0.08
2.80
1.20
1.17
0.15
0.50
0.20
3.04
1.40
C
D
E
e
0.037 BSC
0.95 BSC
H
e1
L
0.083
0.104
2.10
2.64
0.075 BSC
1.9 BSC
0.016
0.024
0.40
0.60
0o
8o
0o
8o
θ
S
NA
NA
NA
NA
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Single/Dual Low Voltage, Low Power Microcontroller Power Supply Supervisor
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ASM6381 - ASM6390
September 2005
rev 1.5
5L SOT 23 Package
NOTE:
1. DIMENSIONS ARE IN MM.
2. DRAWING NOT TO SCALE.
3. DIMENSIONS ARE INCLUSIVE OF PLATING.
4. DIMENSIONS ARE EXCLUSIVE OF MOLD FLASH AND METAL BURR.
5. MOLD FLASH SHALL NOT EXCEED 0.254MM.
6. JEDEC PACKAGE REFERENCE IS MO-193.
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Single/Dual Low Voltage, Low Power Microcontroller Power Supply Supervisor
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ASM6381 - ASM6390
September 2005
rev 1.5
Alliance Semiconductor Corporation
2575 Augustine Drive,
Santa Clara, CA 95054
Tel: 408 - 855 - 4900
Fax: 408 - 855 - 4999
www.alsc.com
Copyright © Alliance Semiconductor
All Rights Reserved
Preliminary Information
Part Number: ASM6381 - ASM6390
Document Version: v 1.5
© Copyright 2003 Alliance Semiconductor Corporation. All rights reserved. Our three-point logo, our name and Intelliwatt are trademarks or
registered trademarks of Alliance. All other brand and product names may be the trademarks of their respective companies. Alliance reserves the
right to make changes to this document and its products at any time without notice. Alliance assumes no responsibility for any errors that may appear
in this document. The data contained herein represents Alliance's best data and/or estimates at the time of issuance. Alliance reserves the right to
change or correct this data at any time, without notice. If the product described herein is under development, significant changes to these
specifications are possible. The information in this product data sheet is intended to be general descriptive information for potential customers and
users, and is not intended to operate as, or provide, any guarantee or warrantee to any user or customer. Alliance does not assume any
responsibility or liability arising out of the application or use of any product described herein, and disclaims any express or implied warranties related
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of any intellectual property rights, except as express agreed to in Alliance's Terms and Conditions of Sale (which are available from Alliance). All
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parties. Alliance does not authorize its products for use as critical components in life-supporting systems where a malfunction or failure may
reasonably be expected to result in significant injury to the user, and the inclusion of Alliance products in such life-supporting systems implies that the
manufacturer assumes all risk of such use and agrees to indemnify Alliance against all claims arising from such use.
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Single/Dual Low Voltage, Low Power Microcontroller Power Supply Supervisor
Notice: The information in this document is subject to change without notice
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