MAX6381XR18D7+T [MAXIM]
Power Supply Support Circuit, Fixed, 1 Channel, BICMOS, PDSO3, LEAD FREE, EIAJ, SC-70, 3 PIN;
| 型号： | MAX6381XR18D7+T |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | Power Supply Support Circuit, Fixed, 1 Channel, BICMOS, PDSO3, LEAD FREE, EIAJ, SC-70, 3 PIN 信息通信管理 光电二极管 |
| 文件： | 总10页 (文件大小：309K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
19-1839; Rev 5; 7/12
SC70/µDFN, Single/Dual Low-Voltage,
Low-Power µP Reset Circuits
81–MAX6390
General Description
Features
o Factory-Set Reset Threshold Voltages Ranging
from +1.58V to +4.63V in Approximately 100mV
Increments
The MAX6381–MAX6390 microprocessor (µP) supervisory
circuits monitor power-supply voltages from +1.8V to
+5.0V while consuming only 3µA of supply current at
+1.8V. Whenever V
falls below the factory-set reset
CC
o ±±.5ꢀ Reset Threshold Accꢁracy ꢂOer
thresholds, the reset output asserts and remains assert-
ed for a minimum reset timeout period after V rises
Temperatꢁre (-40°C to +1±5°C)
CC
o SeOen Reset Timeoꢁt Periods AOailable: 1ms,
±0ms, 140ms, ±80ms, 560ms, 11±0ms,
1±00ms (min)
above the reset threshold. Reset thresholds are available
from +1.58V to +4.63V, in approximately 100mV incre-
ments. Seven minimum reset timeout delays ranging
from 1ms to 1200ms are available.
o 3 Reset ꢂꢁtpꢁt ꢂptions
ActiOe-Low Pꢁsh-Pꢁll
ActiOe-High Pꢁsh-Pꢁll
ActiOe-Low ꢂpen-Drain
The MAX6381/MAX6384/MAX6387 have a push-pull
active-low reset output. The MAX6382/MAX6385/
MAX6388 have a push-pull active-high reset output,
and the MAX6383/MAX6386/MAX6389/MAX6390
have an open-drain active-low reset output. The
o Reset ꢂꢁtpꢁt State Gꢁaranteed Valid
Down to V
= 1V
CC
o Manꢁal Reset Inpꢁt (MAX6384/MAX6385/MAX6386)
o Aꢁxiliary RESET IN (MAX6387/MAX6388/MAX6389)
MAX6384/MAX6385/MAX6386 also feature
a
debounced manual reset input (with internal pullup
resistor). The MAX6387/MAX6388/MAX6389 have an
auxiliary input for monitoring a second voltage. The
o V
Reset Timeoꢁt (11±0ms or 1±00ms)/Manꢁal
Reset Timeoꢁt (140ms or 150ms) (MAX6390)
CC
MAX6390 offers a manual reset input with a longer V
CC
o NegatiOe-Going V Transient Immꢁnity
CC
reset timeout period (1120ms or 1200ms) and a shorter
manual reset timeout (140ms or 150ms).
o Low Power Consꢁmption of 6µA at +3.6V
and 3µA at +1.8V
The MAX6381/MAX6382/MAX6383 are available in
3-pin SC70 and 6-pin µDFN packages and the
MAX6384–MAX6390 are available in 4-pin SC70 and
6-pin µDFN packages.
o Pin Compatible with
MAX809/MAX810/MAX803/MAX63±6/MAX63±7/
MAX63±8/MAX6346/MAX6347/MAX6348,
and MAX6711/MAX671±/MAX6713
Applications
Critical µP and µC
Power Monitoring
o Tiny 3-Pin/4-Pin SC70 and 6-Pin µDFN Packages
Computers
Ordering Information
Controllers
Portable/Battery-
Powered Equipment
PIN-
PACKAGE
Intelligent Instruments
PART
TEMP RANGE
Dual Voltage Systems
MAX6381LT_ _D_+T
MAX6381XR_ _D_+T
MAX6381XR_ _D_/V+T
MAX638±LT_ _D_+T
MAX6382XR_ _D_+T
-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
6 µDFN
3 SC70
3 SC70
6 µDFN
3 SC70
Pin Configurations
TOP VIEW
GND
6
N.C.
5
V
CC
4
Note: Insert reset threshold suffix (see Reset Threshold table)
after "XR", "XS", or "LT." Insert reset timeout delay (see Reset
Timeout Delay table) after "D" to complete the part number.
Sample stock is generally held on standard versions only (see
Standard Versions table). Standard versions have an order
increment requirement of 2500 pieces. Nonstandard versions
have an order increment requirement of 10,000 pieces.
Contact factory for availability of nonstandard versions.
GND
1
2
MAX6381
MAX6382
MAX6383
MAX6381
MAX6382
MAX6383
3
V
CC
RESET
(RESET)
1
2
3
SC70
+Denotes a lead(Pb)-free/RoHS-compliant package.
/V denotes an automotive qualified part.
RESET
(RESET)
N.C.
N.C
( ) IS FOR MAX6382
µDFN
ꢂrdering Information continꢁed at end of data sheet.
Typical ꢂperating Circꢁit appears at end of data sheet.
Selector Gꢁide appears at end of data sheet.
Pin Configurations continued at end of data sheet.
For pricing, deliOery, and ordering information, please contact Maxim Direct
at 1-888-6±9-464±, or Oisit Maxim’s website at www.maxim-ic.com.
1
SC70/µDFN, Single/Dual Low-Voltage,
Low-Power µP Reset Circuits
ABSOLUTE MAXIMUM RATINGS
CC
V
to GND..........................................................-0.3V to +6.0V
Continuous Power Dissipation (T = +70°C)
A
RESET Open-Drain Output....................................-0.3V to +6.0V
3-Pin SC70 (derate 2.9mW/°C above +70°C)..............235mW
4-Pin SC70 (derate 3.1mW/°C above +70°C)..............245mW
6-Pin µDFN (derate 2.1mW/°C above +70°C) ..........167.7mW
Operating Temperature Range .........................-40°C to +125°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+260°C
RESET, RESET (push-pull output)..............-0.3V to (V
MR, RESET IN.............................................-0.3V to (V
+ 0.3V)
+ 0.3V)
CC
CC
Input Current (V ).............................................................20mA
CC
Output Current (all pins) .....................................................20mA
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V
= full range, T = -40°C to +125°C, unless otherwise specified. Typical values are at T = +25°C.) (Note 1)
CC
A
A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
5.5
13
11
7
UNITS
Operating Voltage Range
V
1.0
V
CC
V
V
V
V
= 5.5V, no load
7
6
4
3
CC
CC
CC
CC
81–MAX6390
= 3.6V, no load
= 2.5V, no load
= 1.8V, no load
V
Supply Current
I
µA
V
CC
CC
6
V
-
V
+
TH
TH
T
= +25°C
V
V
A
A
TH
TH
1.5%
1.5%
V
Reset Threshold
CC
V
TH
(See Reset Thresholds table)
Reset Threshold Tempco
V
-
V
+
TH
TH
T
= -40°C to +125°C
2.5%
2.5%
∆V /°C
60
35
ppm/°C
TH
V
falling at 10mV/µs from V + 100mV
TH
CC
V
to Reset Delay
µs
CC
to V - 100mV
TH
D1
D2
D3
D5
D6
D4
D7
1
2
20
40
140
280
560
1120
1200
140
150
1120
1200
280
Reset Timeout Period
MAX6381–MAX6389
(See Reset Timeout table)
t
ms
560
RP
1120
2240
2400
280
D4
D7
D4
D7
MR timeout period
300
Reset Timeout Period
MAX6390
t
RP
ms
2240
2400
V
V
V
timeout period
< 4V
CC
TH
TH
0.3 x
CC
V
V
IL
V
0.7 x
MR Input Voltage
V
IH
V
CC
V
0.8
IL
> 4V
V
2.4
IH
2
SC70/µDFN, Single/Dual Low-Voltage,
Low-Power µP Reset Circuits
81–MAX6390
ELECTRICAL CHARACTERISTICS (continued)
(V
= full range, T = -40°C to +125°C, unless otherwise specified. Typical values are at T = +25°C.) (Note 1)
CC
A
A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
µs
MR Minimum Input Pulse Width
MR Glitch Rejection
1
100
200
63
ns
MR to Reset Delay
ns
MAX6381–MAX6389
MAX6390
32
100
kΩ
Ω
MR Internal Pullup Resistance
500
1560
1.27
3000
1.295
1.308
1.321
T
A
T
A
T
A
= +25°C
1.245
1.232
1.219
RESET IN Input Threshold
V
V
= 0°C to +85°C
= -40°C to +125°C
THRST
V
V
falling at 4mV/µs from
RESETIN
RESET IN to RESET Delay
4.5
1
µs
+ 40mV to V
- 40mV
THRST
THRST
RESET IN Input Leakage Current
I
-50
+50
0.4
0.3
0.3
nA
RESETIN
V
V
V
≥ 4.5V, I
= 3.2mA, reset asserted
= 1.2mA, reset asserted
= 80µA, reset asserted
CC
CC
CC
SINK
SINK
SINK
Open-Drain RESET Output
Voltage
V
≥ 2.5V, I
≥ 1.0V, I
V
OL
Open-Drain RESET Output
Leakage Current
I
V
> V , RESET not asserted
1.0
µA
LKG
CC
TH
V
V
V
≥ 4.5V, I
≥ 2.5V, I
≥ 1.0V, I
= 3.2mA, reset asserted
= 1.2mA, reset asserted
= 80µA, reset asserted
0.4
0.3
0.3
CC
CC
CC
SINK
SINK
SINK
V
OL
Push-Pull RESET Output Voltage
V
V
≥ 4.5V, I
= 800µA, reset not
0.8 x
CC
SOURCE
asserted
V
CC
V
V
OH
V
≥ 2.5V, I
= 500µA, reset not
0.8 x
V
CC
CC
SOURCE
asserted
0.8 x
V
V
V
≥ 4.5V, I
≥ 2.5V, I
≥ 1.8V, I
= 800µA, reset asserted
= 500µA, reset asserted
= 150µA, reset asserted
= 1µA, reset asserted
CC
CC
CC
SOURCE
SOURCE
SOURCE
SOURCE
V
CC
0.8 x
V
CC
OH
0.8 x
V
CC
Push-Pull RESET Output Voltage
V
0.8 x
V
V
≥ 1.0V, I
CC
CC
V
CC
≥ 4.5V, I
= 3.2mA, reset not
SINK
0.4
0.3
asserted
V
OL
V
≥ 2.5V, I
= 1.2mA, reset not
CC
SINK
asserted
Note 1: Specifications over temperature are guaranteed by design, not production tested.
3
SC70/µDFN, Single/Dual Low-Voltage,
Low-Power µP Reset Circuits
Typical Operating Characteristics
(T = +25°C, unless otherwise noted.)
A
NORMALIZED POWER-UP RESET TIMEOUT
vs. TEMPERATURE
SUPPLY CURRENT vs. TEMPERATURE
POWER-DOWN RESET DELAY
vs. TEMPERATURE
(NO LOAD)
9
43
41
39
37
35
33
31
29
27
25
1.08
1.06
1.04
1.02
1.00
0.98
0.96
0.94
8
7
V
= +3V
CC
V
= +3.6V
CC
V
= +5.5V
CC
6
5
4
3
2
1
0
V
= +1.8V
CC
V
= +2.5V
CC
V
= +1.8V
CC
-40 -25 -10
5
20 35 50 65 80 95 110 125
-40 -25 -10
5
20 35 50 65 80 95 110 125
-40 -25 -10
5
20 35 50 65 80 95 110 125
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
81–MAX6390
NORMALIZED RESET THRESHOLD
vs. TEMPERATURE
OUTPUT-VOLTAGE HIGH
vs. SOURCE CURRENT
OUTPUT-VOLTAGE LOW
vs. SINK CURRENT
1.020
1.015
1.010
1.005
1.000
0.995
0.990
0.985
0.990
1.2
1.0
0.8
0.6
0.4
0.2
0
3.0
2.5
2.0
1.5
1.0
0.5
0
V
= +2.5V
CC
V
= +3.0V
CC
V
= +1.8V
CC
V
= +4.5V
CC
-40 -25 -10
5
20 35 50 65 80 95 110 125
0
3
6
9
12
0
250
500
750 1000 1250 1500
TEMPERATURE (°C)
I
(mA)
I
(µA)
SOURCE
SINK
MAXIMUM TRANSIENT DURATION
vs. RESET COMPARATOR OVERDRIVE
RESET IN TO RESET DELAY
vs. TEMPERATURE
500
5.5
5.3
5.1
4.9
4.7
4.5
4.3
4.1
3.9
3.7
3.5
450
400
350
300
RESET ASSERTED
ABOVE THIS LINE
250
200
150
100
50
0
1
10
100
1000
-40 -25 -10
5
20 35 50 65 80 95 110 125
TEMPERATURE (°C)
RESET COMPARATOR OVERDRIVE, V - V (mV)
TH
CC
4
SC70/µDFN, Single/Dual Low-Voltage,
Low-Power µP Reset Circuits
81–MAX6390
Pin Description
PIN
3-PIN SC70
4-PIN SC70
NAME
FUNCTION
MAX6384/
µDFN
MAX6381/
MAX6383
MAX6387/
MAX689
MAX6382 MAX6386/ MAX6385
MAX6390
MAX6388
Active-High Push-Pull Reset Output.
RESET changes from low to high when
1
any monitored voltage (V or
CC
(MAX6382/
MAX6385/
MAX6388)
V
) drops below the reset
RESETIN
2
—
2
—
2
RESET
threshold or MR is pulled low. RESET
remains high for the reset timeout
period after monitored voltages exceed
the reset thresholds or MR is released.
Active-Low Open-Drain/Push-Pull Reset
Output. RES ET changes from high to low
1
(MAX6381/
MAX6383/
MAX6384/
MAX6386/
MAX6387/
MAX6390)
when any monitored voltage (V or
CC
V ) drops below the reset threshold
RESETIN
2
—
2
—
2
—
RESET or MR is pulled low. RES ET remains low for
the reset timeout period after the monitored
voltages exceed the reset thresholds or MR
is released. Open-drain requires an
external pullup resistor.
2, 3, 5
(MAX6381/
MAX6382/
MAX6383)
No Connection. Not Internally
connected.
—
—
—
—
—
—
—
—
—
—
3
—
—
3
N.C.
2, 5
(MAX6384–
MAX6390)
Active-Low Manual Reset Input. Drive
low to force a reset. Reset remains
active as long as MR is low and for the
reset timeout period after MR is
released. Leave unconnected or
3
(MAX6384/
MAX6385/
MAX6386/
MAX6390)
3
3
MR
connect to V
if unused. MR has an
CC
internal 63kΩ (1.56kΩ for MAX6390)
pullup resistor to V
.
CC
Auxiliary Reset Input. High-impedance
input to the auxiliary reset comparator.
Connect RESET IN to the center point of
an external resistor voltage-divider
network to set the reset threshold voltage.
Reset asserts when either V or RESET
CC
3
(MAX6387/
MAX6388/
MAX6389)
RESET
IN
—
—
IN falls below its threshold voltage.
4
Supply Voltage for the device and input
3
1
3
1
4
1
4
1
4
1
4
1
V
(MAX6381–
MAX6390)
CC
for fixed V
reset threshold monitor.
CC
6
GND
Ground
(MAX6381–
MAX6390)
5
SC70/µDFN, Single/Dual Low-Voltage,
Low-Power µP Reset Circuits
Detailed Description
Reset Thresholds (-40°C to +125°C)
SUFFIX
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
V
(min)
V
(nom)
V
(max)
TH
RESET Output
A µP reset input starts the µP in a known state. These
µP supervisory circuits assert reset to prevent code
execution errors during power-up, power-down, or
brownout conditions.
TH
TH
4.51
4.63
4.74
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
2.63
2.56
2.44
2.34
2.26
2.13
2.05
1.95
1.85
1.76
1.62
1.54
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
2.70
2.63
2.50
2.40
2.31
2.19
2.10
2.00
1.90
1.80
1.67
1.58
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
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 asserts when V
is below the reset threshold;
CC
once V
exceeds the reset threshold, an internal timer
CC
keeps the reset output asserted for the reset timeout
period. After this interval, reset output deasserts. Reset
output is guaranteed to be in the correct logic state for
V
≥ 1V.
CC
Manual Reset Input (MAX6384/
MAX6385/MAX6386/MAX6390)
Many µP-based products require manual reset capabil-
ity, allowing the operator, a test technician, or external
logic circuitry to initiate a reset. A logic low on MR
asserts reset. Reset remains asserted while MR is low,
81–MAX6390
and for the reset active timeout period (t ) after MR
RP
returns high. This input has an internal 63kΩ pullup
resistor (1.56kΩ for MAX6390), so it can be left uncon-
nected if it is not used. MR can be driven with TTL or
CMOS logic levels, or with open-drain/collector outputs.
Connect a normally open momentary switch from MR to
GND to create a manual-reset function; external
debounce circuitry is not required. If MR is driven from
long cables or if the device is used in a noisy environ-
ment, connecting a 0.1µF capacitor from MR to GND
provides additional noise immunity.
RESET IN Comparator
(MAX6387/MAX6388/MAX6389)
RESET IN is compared to an internal +1.27V reference.
If the voltage at RESET IN is less than 1.27V, reset
asserts. Use the RESET IN comparator as a user-
adjustable reset detector or as a secondary power-sup-
ply monitor by implementing a resistor-divider at RESET
IN (shown in Figure 1). Reset asserts when either V
CC
or RESET IN falls below its respective threshold volt-
age. Use the following equation to set the threshold:
V
= V
(R1/R2 + 1)
INTH
THRST
___________Applications Information
where V
= +1.27V. To simplify the resistor selec-
THRST
Negative-Going V
CC
Transients
tion, choose a value of R2 and calculate R1:
In addition to issuing a reset to the µP during power-up,
power-down, and brownout conditions, the
MAX6381–MAX6390 are relatively immune to short dura-
R1 = R2 [(V /V ) - 1]
INTH THRST
Since the input current at RESET IN is 50nA (max),
large values can be used for R2 with no significant loss
in accuracy.
tion negative-going V transients (glitches).
CC
The Typical Operating Characteristics section shows the
Maximum Transient Durations vs. Reset Comparator
Overdrive, for which the MAX6381–MAX6390 do not
generate a reset pulse. This graph was generated using
6
SC70/µDFN, Single/Dual Low-Voltage,
Low-Power µP Reset Circuits
81–MAX6390
V
CC
V
CC
V
IN
MAX6387
MAX6388
MAX6389
MAX6381
MAX6384
MAX6387
R1
R2
RESET
(RESET)
RESET IN
RESET
R1
100k
GND
GND
( ) IS FOR MAX6388
Figure 1. RESET IN Configuration
Figure 2. RESET Valid to V = Ground Circuit
CC
Reset Timeout Delay
does not work with the open-drain outputs of the
MAX6383/MAX6386/MAX6389/MAX6390. The resistor
value used is not critical, but it must be small enough
SUFFIX
D1
MIN
1ms
D2
20ms
not to load the reset output when V
is above the
CC
reset threshold. For most applications, 100kΩ is ade-
quate.
D3
140ms
D5
280ms
D6
D4
560ms
1120ms
1200ms
1120/140ms*
1200/150ms*
D7
Standard Versions
MAX6390_ _D4
MAX6390_ _D7
RESET
THRESHOLD
PART
RESET TIMEOUT
*The MAX6390 has a 1120ms or 1200ms RESET timeout and a
140ms or 150ms manual reset timeout.
46
44
31
29
26
23
22
17
16
46
44
31
29
26
23
22
17
16
a negative-going pulse applied to V , starting above
CC
the actual reset threshold and ending below it by the
magnitude indicated (reset comparator overdrive). The
graph indicates the typical maximum pulse width a neg-
MAX638_
D3
ative-going V
transient may have without causing a
CC
reset pulse to be issued. As the magnitude of the tran-
sient increases (goes farther below the reset threshold),
the maximum allowable pulse width decreases. A 0.1µF
capacitor mounted as close as possible to V
additional transient immunity.
provides
CC
Ensuring a Valid RESET
Output Down to V = 0V
CC
The MAX6381–MAX6390 are guaranteed to operate
properly down to V = 1V. In applications that require
CC
MAX6390
D4
valid reset levels down to V
= 0V, a pulldown resistor
CC
to active-low outputs (push/pull only, Figure 2) and a
pullup resistor to active-high outputs (push/pull only)
will ensure that the reset line is valid while the reset out-
put can no longer sink or source current. This scheme
7
SC70/µDFN, Single/Dual Low-Voltage,
Low-Power µP Reset Circuits
Selector Guide
PUSH-PULL
ACTIVE-LOW
PUSH-PULL
ACTIVE-HIGH
OPEN-DRAIN
ACTIVE-LOW
MANUAL RESET
PART NUMBER
RESET IN
INPUT MR
MAX6381
MAX6382
MAX6383
MAX6384
MAX6385
MAX6386
MAX6390*
MAX6387
MAX6388
MAX6389
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
*The MAX6390 offers a V
reset timeout of 1120ms or 1200ms (min) and a manual reset timeout of 140ms or 150ms (min).
CC
81–MAX6390
Typical Operating Circuit
Ordering Information (continued)
PIN-
I/O SUPPLY
PART
TEMP RANGE
PACKAGE
6 µDFN
3 SC70
6 µDFN
4 SC70
6 µDFN
4 SC70
6 µDFN
4 SC70
6 µDFN
4 SC70
6 µDFN
4 SC70
6 µDFN
4 SC70
6 µDFN
4 SC70
V
CORE
MAX6383LT_ _D_+T
MAX6383XR_ _D_+T
MAX6384LT_ _D_+T
MAX6384XS_ _D_+T
MAX6385LT_ _D_+T
MAX6385XS_ _D_+T
MAX6386LT_ _D_+T
MAX6386XS_ _D_+T
MAX6387LT_ _D_+T
MAX6387XS_ _D_+T
MAX6388LT_ _D_+T
MAX6388XS_ _D_+T
MAX6389LT_ _D_+T
MAX6389XS_ _D_+T
MAX6390LT_ _D_+T
MAX6390XS_ _D_+T*
-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
-40°C to +125°C
-40°C to +125°C
R1
R1
V
CC
RESET IN **
CORE
VOLTAGE VOLTAGE
I/O
MAX6381–MAX6390
P
RESET
(RESET)
RESET
INPUT
GND
MR *
GND
PUSHBUTTON SWITCH
*MR is for MAX6384/MAX6385/MAX6386/MAX6390
**RESET IN is for MAX6387/MAX6388/MAX6389
( ) are for MAX6382/MAX6385/MAX6388
Note: Insert reset threshold suffix (see Reset Threshold table)
after "XR", "XS", or "LT." Insert reset timeout delay (see Reset
Timeout Delay table) after "D" to complete the part number.
Sample stock is generally held on standard versions only (see
Standard Versions table). Standard versions have an order
increment requirement of 2500 pieces. Nonstandard versions
have an order increment requirement of 10,000 pieces.
Contact factory for availability of nonstandard versions.
*MAX6390 is available with D4 or D7 timing only.
+Denotes a lead(Pb)-free/RoHS-compliant package.
8
SC70/µDFN, Single/Dual Low-Voltage,
Low-Power µP Reset Circuits
81–MAX6390
Pin Configurations (continued)
TOP VIEW
GND
6
N.C.
V
CC
5
4
1
2
4
GND
V
CC
MAX6384
MAX6385
MAX6386
MAX6390
MAX6384
MAX6385
MAX6386
MAX6390
RESET
(RESET)
1
2
3
MR
3
RESET
N.C.
MR
(RESET)
µDFN
SC70
( ) IS FOR MAX6385
( ) IS FOR MAX6385
GND
6
N.C.
V
CC
5
4
1
4
V
CC
GND
MAX6387
MAX6388
MAX6389
MAX6387
MAX6388
MAX6389
1
2
3
RESET
(RESET)
2
3
RESET IN
RESET
N.C.
RESET IN
(RESET)
µDFN
SC70
( ) IS FOR MAX6388
( ) IS FOR MAX6388
Chip Information
Package Information
For the latest package outline information and land patterns, go
to www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in
the package code indicates RoHS status only. Package draw-
ings may show a different suffix character, but the drawing per-
tains to the package regardless of RoHS status.
PROCESS: BiCMOS
PACKAGE PACKAGE
OUTLINE
NO.
LAND PATTERN
NO.
TYPE
CODE
3 SC70
4 SC70
6 µDFN
X3+2
X4+1
21-0075
21-0098
21-0147
90-0208
90-0187
90-0080
L611+1
9
SC70/µDFN, Single/Dual Low-Voltage,
Low-Power µP Reset Circuits
Revision History
REVISION
REVISION
DATE
10/00
12/05
4/07
PAGES
DESCRIPTION
NUMBER
CHANGED
0
3
4
5
Initial release
—
Added lead-free notation to Ordering Information.
Added µDFN package to data sheet.
1, 8
1, 2, 5, 7–13
1
7/12
Added automotive package to Ordering Information.
81–MAX6390
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits) shown in
the Electrical. Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.
10
Maxim Integrated Products, Inc. 160 Rio Robles, San Jose, CA 95134 USA 1-408-601-1000
Maxim is a registered trademark of Maxim Integrated Products, Inc.
© 2012 Maxim Integrated Products
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