MAX6833FXRD2-T 概述
Industrial Control IC
工业控制IC\n 电源管理电路
MAX6833FXRD2-T 规格参数
是否无铅: | 含铅 | 是否Rohs认证: | 不符合 |
生命周期: | Obsolete | 零件包装代码: | SOIC |
包装说明: | SC-70, 3 PIN | 针数: | 3 |
Reach Compliance Code: | not_compliant | ECCN代码: | EAR99 |
HTS代码: | 8542.39.00.01 | 风险等级: | 5.3 |
Is Samacsys: | N | 可调阈值: | NO |
模拟集成电路 - 其他类型: | POWER SUPPLY SUPPORT CIRCUIT | JESD-30 代码: | R-PDSO-G3 |
JESD-609代码: | e0 | 长度: | 2 mm |
湿度敏感等级: | 1 | 信道数量: | 1 |
功能数量: | 1 | 端子数量: | 3 |
最高工作温度: | 85 °C | 最低工作温度: | -40 °C |
封装主体材料: | PLASTIC/EPOXY | 封装代码: | TSOP |
封装等效代码: | SOT-323 | 封装形状: | RECTANGULAR |
封装形式: | SMALL OUTLINE, THIN PROFILE | 峰值回流温度(摄氏度): | 245 |
电源: | 0.8/3.6 V | 认证状态: | Not Qualified |
座面最大高度: | 1.1 mm | 子类别: | Power Management Circuits |
最大供电电流 (Isup): | 0.025 mA | 最大供电电压 (Vsup): | 3.6 V |
最小供电电压 (Vsup): | 0.85 V | 标称供电电压 (Vsup): | 1.2 V |
表面贴装: | YES | 技术: | BICMOS |
温度等级: | INDUSTRIAL | 端子面层: | Tin/Lead (Sn/Pb) |
端子形式: | GULL WING | 端子节距: | 0.65 mm |
端子位置: | DUAL | 阈值电压标称: | +1.05V |
处于峰值回流温度下的最长时间: | NOT SPECIFIED | 宽度: | 1.25 mm |
Base Number Matches: | 1 |
MAX6833FXRD2-T 数据手册
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PDF下载19-2242; Rev 0; 10/01
Ultra-Low-Voltage SC70 Voltage Detectors
and µP Reset Circuits
General Description
Features
ꢀ Factory-Set Reset Threshold Voltages for
The MAX6832–MAX6840 are microprocessor (µP)
supervisory circuits used to monitor low-voltage power
supplies in µP and digital systems. They provide excel-
lent circuit reliability and low cost by eliminating exter-
nal components and adjustments when used with
+1.2V to +1.8V powered circuits.
Nominal Supplies from 1.2V to 1.8V
ꢀ Low Power Consumption: 7.5µA (typ)
ꢀ Space-Saving 3- and 4-Pin SC70 Packages
ꢀ
2.5ꢀ Reset Threshold Accuracy ꢁver
Temperature
These devices assert a reset signal whenever the V
CC
supply voltage declines below a preset threshold or
ꢀ Five Different Timeout Periods Available: 70µs
whenever manual reset (MR) is asserted. Reset remains
(voltage detector), 1.5ms, 30ms, 210ms, and 1.68s
asserted for a fixed timeout delay after V
has risen
CC
above the reset threshold or when manual reset is
deasserted. Five different timeout periods are available:
70µs (voltage detector), 1.5ms, 30ms, 210ms, and 1.68s.
Reset thresholds suitable for operation with a variety of
supply voltages are available.
ꢀ Three Reset ꢁutput Configurations
Push-Pull RESET
Push-Pull RESET
ꢁpen-Drain RESET
ꢀ Guaranteed Reset Valid to V
0.55V—Active-Low
=
CC
The MAX6832/MAX6835/MAX6838 have a push-pull
active-low reset output (RESET). The MAX6833/
MAX6836/MAX6839 have a push-pull active-high reset
output (RESET) and the MAX6834/MAX6837/MAX6840
have an open-drain active-low reset output (RESET). The
open-drain active-low reset output requires a pullup resis-
0.75V—Active-High
ꢀ Adjustable Threshold Reset-In ꢁption
ꢀ Manual Reset Input ꢁption
tor that can be connected to a voltage higher than V
.
CC
ꢀ Immune to Short Negative V
Transients
CC
The MAX6835/MAX6836/MAX6837 feature a debounced
manual reset input (MR), while the MAX6838/MAX6839/
MAX6840 provide a RESET-IN input allowing the user to
externally adjust the reset threshold. The reset compara-
ꢀ Pin Compatible with MAX803/MAX809/MAX810,
MAX6711/MAX6712/MAX6713, and
MAX6381–MAX6390 Series
tor is designed to ignore fast transients on V
.
CC
Ordering Information
Low supply current of 7.5µA makes the MAX6832–
MAX6840 ideal for use in portable equipment. These
devices are available in 3- and 4-pin SC70 packages.
PART
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
3 SC70-3
3 SC70-3
3 SC70-3
4 SC70-4
4 SC70-4
4 SC70-4
4 SC70-4
4 SC70-4
4 SC70-4
MAX6832_XRD_-T
MAX6833_XRD_-T
MAX6834_XRD_-T
MAX6835_XSD_-T*
MAX6836_XSD_-T*
MAX6837_XSD_-T*
MAX6838XSD_-T
MAX6839XSD_-T
MAX6840XSD_-T
Applications
Computers
Controllers
Intelligent Instruments
Critical µP and µC Power Monitoring
Portable/Battery-Powered Equipment
*Future product—contact factory for availability.
Insert the desired suffix letter from the Threshold Suffix Guide
(MAX6832–MAX6837) and the Active Timeout Period Guide
tables into the blanks to complete the part number. Sample
stock is generally available on standard versions only (see
Standard Versions table). Standard versions require a minimum
order increment of 2.5k units. Nonstandard versions must be
ordered in 10k unit increments. Contact factory for availability.
All parts are offered in tape-and-reel only.
Pin Configurations appear at end of data sheet.
Typical Operating Circuit apears at end of data sheet.
Selector Guide appears at end of data sheet.
________________________________________________________________ Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
Ultra-Low-Voltage SC70 Voltage Detectors
and µP Reset Circuits
ABSOLUTE MAXIMUM RATINGS
Terminal Voltage (with respect to GND)
Continous Power Dissipation (T = +70°C)
A
V
........................................................................-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
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
CC
Open-Drain RESET, MR .......................................-0.3V to +6.0V
RESET-IN, Push-Pull RESET
and RESET ..............................................-0.3V to (V
+ 0.3V)
CC
Input/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
= +0.55V to +3.6V, T = T
A
to T
, unless otherwise noted. Typical values are at T = +25°C.) (Note 1)
MAX A
CC
MIN
PARAMETER
SYMBOL
CONDITIONS
= -40°C to +85°C
MIN
TYP
MAX
UNITS
T
A
MAX6832/MAX6835/MAX6838
0.55
3.6
MAX6834/MAX6837/MAX6840
Supply Voltage Range
Supply Current
V
V
CC
T
= -40°C to +85°C
A
0.85
0.75
3.6
3.6
MAX6833/MAX6836/MAX6839
T
= 0°C to +85°C
A
MAX6833/MAX6836/MAX6839
V
V
V
= 1.2V, no load, reset not asserted
= 1.8V, no load, reset not asserted
= 3.6V, no load, reset not asserted
7.5
9
13
16
CC
CC
CC
I
µA
V
CC
16
25
W
V
I
1.620
1.530
1.350
1.275
1.080
1.020
-2.5%
-3.0%
-25
1.665
1.575
1.388
1.313
1.110
1.050
444
1.710
1.620
1.425
1.350
1.140
1.080
+2.5%
+3.0%
+25
Reset Threshold
V
TH
H
G
F (Note 2)
1.1V ≤ V
1.1V ≤ V
≤ 3.3V, 0°C to +85°C
≤ 3.3V, -40°C to +85°C
CC
CC
RESET-IN Threshold
V
mV
nA
RSTIN
444
RESET-IN Leakage Current
Reset Threshold Hysteresis
I
RSTIN
V
0.75
60
%V
TH
HYS
V
falling, step signal from
CC
V
or RESET-IN to Reset Delay
µs
CC
(V + 100mV) to (V - 100mV)
TH
TH
D0
0.07
1.5
D1
D2
D3
D4
1
2
Reset Active Timeout Period
t
20
30
40
ms
RP
140
1120
210
1680
280
2240
2
_______________________________________________________________________________________
Ultra-Low-Voltage SC70 Voltage Detectors
and µP Reset Circuits
ELECTRICAL CHARACTERISTICS (continued)
(V
= +0.55V to +3.6V, T = T
A
to T
, unless otherwise noted. Typical values are at T = +25°C.) (Note 1)
MAX A
CC
MIN
PARAMETER
SYMBOL
CONDITIONS
rising, step signal
MIN
TYP
70
MAX
UNITS
µs
V
CC
Propagation Delay (D0 only)
Startup Time (D0 only)
MR Input Voltage
t
P
from (V - 100mV) to (V + 100mV)
TH
TH
V
rising from 0 to 1.1V (t < 1µs)
150
µs
CC
R
V
0.3 x V
CC
IL
V
V
0.7 x V
1
IH
CC
MR Minimum Input Pulse Width
MR Glitch Rejection
MR driven from V
MR driven from V
MR driven from V
to 0
to 0
to 0
µs
ns
ns
kΩ
CC
CC
CC
100
500
20
MR to Reset Delay
MR Pullup Resistance To V
14
26
CC
V
V
V
≥ 0.55V, I
=15µA, reset asserted
0.15
0.15
0.2
CC
CC
CC
SINK
Open-Drain RESET Output
Voltage
V
≥ 1.0V, I
≥ 1.5V, I
= 80µA, reset asserted
= 200µA, reset asserted
V
OL
SINK
SINK
Open-Drain RESET Output
Leakage Current
I
V
> V reset not asserted
TH,
1.0
µA
LKG
CC
V
V
V
≥ 0.55V, I
= 15µA, reset asserted
0.2 x V
CC
CC
CC
SINK
CC
CC
CC
V
≥ 1.0V, I
≥ 1.5V, I
≥ 1.1V, I
= 80µA, reset asserted
= 200µA, reset asserted
0.2 x V
0.2 x V
OL
SINK
SINK
Push-Pull RESET Output
Voltage
V
= 50µA, reset not
CC
SOURCE
0.8 x V
0.8 x V
0.8 x V
CC
CC
CC
asserted
V
V
OH
V
≥1.5V, I = 150µA, reset asserted
SOURCE
CC
V
V
≥ 0.75V, I
= 10µA, reset asserted
CC
SOURCE
(Note 2)
V
V
V
V
V
≥ 0.85V, I
= 10µA, reset asserted 0.8 x V
CC
CC
CC
CC
CC
SOURCE
CC
CC
CC
OH
Push-Pull RESET Output
Voltage
≥ 1.0V, I
≥ 1.5V, I
≥ 1.1V, I
≥ 1.5V, I
= 50µA, reset asserted
0.8 x V
SOURCE
= 150µA, reset asserted 0.8 x V
SOURCE
= 80µA, reset not asserted
= 200µA, reset not asserted
0.2 x V
0.2 x V
SINK
SINK
CC
CC
V
OL
Note 1: 100% production tested at +25°C. Over temperature limits are guaranteed by design.
Note 2: Temperature range is from 0°C to +85°C.
_______________________________________________________________________________________
3
Ultra-Low-Voltage SC70 Voltage Detectors
and µP Reset Circuits
Typical Operating Characteristics
(V
= full range and T = -40°C to +85°C, unless otherwise noted. Typical values are at T = +25°C).
CC
A
A
POWER-DOWN RESET DELAY
vs. TEMPERATURE
SUPPLY CURRENT vs. TEMPERATURE
16
14
12
10
8
300
250
200
150
100
50
V
= OVERDRIVE (mV)
V
= 3.6V
OD
CC
V
= 3.0V
CC
V
= 2.5V
CC
V
= 1.8V
V
= 10mV
CC
OD
V
= 1.5V
CC
V
= 20mV
OD
V
6
4
V
= 100mV
OD
2
0
V
= 0.55V
20
CC
= 200mV
0
OD
0
-40
-20
0
60
80
40
-40 -20
20
40
60
80
TEMPERATURE (°C)
TEMPERATURE (°C)
NORMALIZED POWER-UP RESET
TIMEOUT vs. TEMPERATURE
NORMALIZED RESET THRESHOLD
vs. TEMPERATURE
1.003
1.002
1.001
1.000
0.999
0.998
0.997
0.996
0.995
0.994
1.06
1.04
1.02
1.00
0.98
0.96
0.94
V
= 1.665V
TH
D1 OPTION
D2 OPTION
-40
-20
0
20
40
60
80
-40
-20
0
20
40
60
80
TEMPERATURE (°C)
TEMPERATURE (°C)
4
_______________________________________________________________________________________
Ultra-Low-Voltage SC70 Voltage Detectors
and µP Reset Circuits
Pin Description—MAX6832–MAX6837
PIN
MAX6832/
MAX6834
SC70-3
MAX6835/
MAX6837
SC70-4
NAME
FUNCTION
MAX6833
SC70-3
MAX6836
SC70-4
1
1
1
1
GND
Ground
Reset Output, Open-Drain or Push-Pull, Active-Low. RESET
changes from HIGH to LOW when V drops below the
CC
—
2
—
2
RESET
selected reset threshold or MR is pulled low. RESET remains
LOW for the reset timeout period after V exceeds the device
CC
reset threshold and MR is released high.
Reset Output, Push-Pull, Active-High. RESET changes from
LOW to HIGH when the V input drops below the selected
CC
2
—
2
—
RESET
reset threshold or MR is pulled low. RESET remains HIGH for
the reset timeout period after V
exceeds the device reset
CC
threshold and MR is released high.
Active-Low Manual Reset Input. Internal 20kΩ pullup to V
.
CC
Pull LOW to force a reset. Reset remains active as long as MR is
LOW and for the reset timeout period after MR goes HIGH.
—
—
3
4
3
4
MR
Leave unconnected or connect to V
if unused.
CC
3
3
V
Supply Voltage and Monitored Supply
CC
Pin Description—MAX6838/MAX6839/MAX6840
PIN
MAX6838/
MAX6840
SC70-4
NAME
FUNCTION
MAX6839
SC70-4
Adjustable Reset Threshold Input. High-impedance input for reset comparator. Connect
this pin to an external resistive-divider network to set the reset threshold voltage; the
1
1
RESET-IN
typical threshold is 444mV. Reset is asserted when RESET-IN is below the threshold (V
is not monitored).
CC
2
3
2
3
V
Supply Voltage (1.1V to 3.3V)
Ground
CC
GND
Reset Output, Push-Pull, Active-High. RESET changes from LOW to HIGH when the
4
—
RESET
RESET-IN input drops below the typical reset threshold (444mV). RESET remains HIGH for
the reset timeout period after RESET-IN exceeds the reset threshold.
Reset Output, Open-Drain or Push-Pull, Active-Low. RESET changes from HIGH to LOW
when RESET-IN drops below the typical reset threshold (444mV). RESET remains LOW for
the reset timeout period after RESET-IN exceeds the reset threshold.
—
4
RESET
_______________________________________________________________________________________
5
Ultra-Low-Voltage SC70 Voltage Detectors
and µP Reset Circuits
Functional Diagrams
MR (MAX6835/MAX6836/MAX6837 ONLY)
V
CC
V
CC
MR
PULLUP
MANUAL
RESET
DETECT
RESET-IN
RESET
TIMEOUT
PERIOD
RESET/
RESET
RESET
OUTPUT
RESET
RESET/
RESET
RESET
OUTPUT
TIMEOUT
PERIOD
MAX6838/
MAX6839/
MAX6840
V
REF
= 444mV
MAX6832–
V
= 444mV
MAX6837
REF
GND
GND
MR is driven from long cables or if the device is used in
a noisy environment, connecting a 0.1µF capacitor from
MR to ground provides additional noise immunity.
Detailed Description
Reset Output
A microprocessor’s (µP’s) reset input starts the µP in a
known state. The MAX6832–MAX6840 assert a reset to
prevent code-execution errors during power-up, power-
down, or brownout conditions. They also assert a reset
RESET-IN Information
The MAX6838/MAX6839/MAX6840 feature a RESET-IN
input for monitoring supply voltages down to 0.44V. An
external resistive-divider network can be used to set
voltage monitoring thresholds as shown in Figure 1. As
the monitored voltage falls, the voltage at RESET-IN
decreases and asserts a reset when it falls below the
signal whenever the V
supply voltage falls below a
CC
preset threshold (MAX6832–MAX6837) or RESET-IN
falls below the adjustable threshold (MAX6838/
MAX6839/MAX6840), keeping reset asserted for a fixed
RESET-IN threshold (V
). The low-leakage current
RSTIN
timeout delay (Table 2) after V
or RESET-IN has risen
CC
above the reset threshold. The MAX6832/MAX6835/
MAX6838 use a push-pull active-low output, the
MAX6833/MAX6836/MAX6839 have a push-pull active-
high output, and the MAX6834/MAX6837/MAX6840
have an open-drain active-low output stage. Connect a
pullup resistor on the MAX6834/MAX6837/MAX6840’s
RESET output to any supply between 0 and 6V.
V
MONITORED
R1
V
CC
MAX6838/
MAX6839/
MAX6840
Manual Reset Input
Many µP-based systems require manual reset capabili-
ty, allowing the operator, a test technician, or external
logic circuitry to initiate a reset. Reset remains asserted
while MR is low, and for a fixed timeout delay after MR
returns high. This input has an internal 20kΩ pullup
resistor, so it can be left open if it is not used. MR can
be driven with CMOS logic level, or with open-drain/col-
lector outputs. To create a manual reset function, con-
nect a normally open momentary switch from MR to
ground; external debounce circuitry is not required. If
RESET
RESET-IN
(RESET)
R2
GND
( ) ARE FOR MAX6839
R1 = R2 [(V
/V ) -1]
MONITORED REF
WHERE V
REF
IS THE DESIRED TRIP LEVEL,
MONITORED
= 444mV
V
Figure 1. Setting the Adjustable Threshold Externally
6
_______________________________________________________________________________________
Ultra-Low-Voltage SC70 Voltage Detectors
and µP Reset Circuits
at RESET-IN allows for relatively large-value resistors to
be used, which reduce power consumption. For exam-
ple, for a 0.6V monitored trip level, if R2 = 200kΩ, then
can drift to undetermined voltages. This presents no
problem in most applications since most µP and other
circuitry are inoperative with V
lower than 0.55V.
CC
R1 = 70.3kΩ. Note that the minimum V
of 1.1V is
However, in applications where RESET must be valid
down to 0, adding a pulldown resistor to RESET causes
any stray leakage currents to flow to ground, holding
RESET low (Figure 3). R3’s value is not critical; 100kΩ
is large enough not to load RESET and small enough to
pull RESET to ground.
CC
required to guarantee the RESET-IN threshold accura-
cy (see Electrical Characteristics table).
Applications Information
Negative-Going V
CC
Transients
A 100kΩ pullup resistor to V
is also recommended
for the MAX6833/MAX6836/MAX6839 if RESET is
required to remain valid for V < 0.85V.
In addition to issuing a reset to the µP during power-up,
power-down, and brownout conditions, the MAX6832–
MAX6840 are relatively immune to short-duration nega-
CC
CC
tive-going V
transients (glitches).
CC
Figure 2 shows typical transient duration vs. reset com-
parator overdrive, for which the MAX6832–MAX6840 do
not generate a reset pulse. The graph was generated
V
CC
using a negative-going pulse applied to V , starting
CC
MAX6832
MAX6835
MAX6838
0.1V above the actual reset threshold and ending
below it by the magnitude indicated (reset comparator
overdrive). The graph indicates the maximum pulse
RESET
R3
100kΩ
width a negative-going V
transient can have without
CC
GND
causing a reset pulse. As the magnitude of the tran-
sient increases (goes farther below the reset threshold),
the maximum allowable pulse width decreases. A 0.1µF
bypass capacitor mounted as close as possible to the
Figure 3. RESET Valid to V
= Ground Circuit
CC
V
CC
pin provides additional transient immunity.
Interfacing to µPs with Bidirectional
Reset Pins
Ensuring a Valid Reset Output
Down to V
CC
= 0
Since the RESET output on the MAX6834/MAX6837/
MAX6840 is open-drain, these devices interface easily
with µPs that have bidirectional reset pins. Connecting
the µP supervisor’s RESET output directly to the µP’s
RESET pin with a single pullup resistor allows either
device to assert a reset (Figure 4).
When V
falls below 0.55V, the MAX6832/MAX6835/
CC
MAX6838 push-pull RESET output no longer sinks cur-
rent—it becomes an open circuit. Therefore, high-
impedance CMOS logic inputs connected to RESET
MAXIMUM TRANSIENT DURATION
vs. OVERDRIVE
900
800
700
600
V
CC
V
V
CC
CC
RESET OCCURS
ABOVE THIS
LINE
500
400
300
200
100
0
BIDIRECTIONAL
MAX6834
MAX6837
MAX6840
µP
RESET
INPUT
RESET
GND
GND
1
10
OVERDRIVE V - V (mV)
100
TH
CC
Figure 2. Maximum Transient Duration Without Causing a
Reset Pulse vs. Reset Comparator Overdrive
Figure 4. Interfacing to µPs with Bidirectional Reset I/O
_______________________________________________________________________________________
7
Ultra-Low-Voltage SC70 Voltage Detectors
and µP Reset Circuits
Using The MAX6834/MAX6837/MAX6840
Selector Guide
Open-Drain RESET Output
with Multiple Supplies
Table 1. Threshold Suffix Guide
Generally, the pullup connected to the MAX6834/
MAX6837/MAX6840 will connect to the supply voltage
SUFFIX
RESET THRESHOLD (V)
that is being monitored at the IC’s V
pin. However,
W
V
I
1.665
1.575
1.388
1.313
1.110
1.050
CC
some systems may use the open-drain output to level-
shift from the monitored supply to reset circuitry pow-
ered by some other supply (Figure 5). Note that as the
H
G
F
MAX6834/MAX6837/MAX6840’s V
decreases, so
CC
does the IC’s ability to sink current at RESET. Also, with
any pullup, RESET will be pulled high as V declines
CC
toward 0. The voltage where this occurs depends on
the pullup resistor value and the voltage to which it is
connected.
Table 2. Active Timeout Period Guide
TYPICAL RESET ACTIVE
SUFFIX
TIMEOUT PERIOD (ms)
+5.0V
+1.2V
D0
D1
D2
D3
D4
0.07
1.5
30
V
V
CC
CC
210
1680
R
PULLUP
5V SYSTEM
MAX6834
MAX6837
MAX6840
RESET
INPUT
RESET
Table 3. Standard Versions
DEVICE
TOP MARK
AIQ
MAX6832VXRD0
MAX6832VXRD3
MAX6832HXRD0
MAX6832HXRD3
MAX6832FXRD0
MAX6832FXRD3
MAX6833VXRD0
MAX6833VXRD3
MAX6833HXRD0
MAX6833HXRD3
MAX6833FXRD0
MAX6833FXRD3
MAX6834VXRD0
MAX6834VXRD3
MAX6834HXRD0
MAX6834HXRD3
MAX6834FXRD0
MAX6834FXRD3
MAX6835VXSD0
GND
GND
AIR
AIS
AIT
Figure 5. Using The MAX6834/MAX6837/MAX6840 Open-Drain
RESET Output with Multiple Supplies
AIU
AIV
Chip Information
TRANSISTOR COUNT: 681
AHJ
AIW
AIX
PROCESS: BiCMOS
AIY
AIZ
AJA
AJB
AJC
AJD
AJE
AJF
AJG
AEX
8
_______________________________________________________________________________________
Ultra-Low-Voltage SC70 Voltage Detectors
and µP Reset Circuits
Pin Configurations
TOP VIEW
GND
V
4
3
CC
4
3
RESET (RESET)
GND
1
GND
1
2
RESET-IN
1
2
MAX6832
MAX6833
MAX6834
MAX6835
MAX6836
MAX6837
MAX6838
MAX6839
MAX6840
V
CC
3
MR
2
V
CC
RESET (RESET)
RESET (RESET)
SC70-3
SC70-4
SC70-4
( ) ARE FOR MAX6836
( ) ARE FOR MAX6833
( ) ARE FOR MAX6839
Typical Operating Circuit
Selector Guide (continued)
Table 3. Standard Versions (continued)
V
IN
3.3V
1.2V
DEVICE
TOP MARK
DC/DC
CONVERTER
MAX6835VXSD3
MAX6835HXSD0
MAX6835HXSD3
MAX6835FXSD0
MAX6835FXSD3
MAX6836VXSD0
MAX6836VXSD3
MAX6836HXSD0
MAX6836HXSD3
MAX6836FXSD0
MAX6836FXSD3
MAX6837VXSD0
MAX6837VXSD3
MAX6837HXSD0
MAX6837HXSD3
MAX6837FXSD0
MAX6837FXSD3
MAX6838XSD0
MAX6838XSD3
MAX6839XSD0
MAX6839XSD3
MAX6840XSD0
MAX6840XSD3
AFF
CORE
SUPPLY
I/O
SUPPLY
V
CC
AFG
AFH
AFI
RESET
RESET
µP
GND
AFJ
MAX6834G/F
AFK
AFL
GND
AFM
AFN
AFO
AFP
AFQ
AFR
AFS
AFT
AFU
AFC
AFW
AFV
AFX
AEZ
AFY
AFZ
_______________________________________________________________________________________
9
Ultra-Low-Voltage SC70 Voltage Detectors
and µP Reset Circuits
Package Information
10 ______________________________________________________________________________________
Ultra-Low-Voltage SC70 Voltage Detectors
and µP Reset Circuits
Package Information (continued)
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.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 11
© 2001 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
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