首页 > MAX16154DCBT

MAX16154DCBT

更新时间：2025-06-10 21:21:32
品牌：MAXIM
描述：nanoPower Supervisor and Watchdog Timer

PDF下载

中文翻译

免费 PCB/SMT

MAX16154DCBT 概述

nanoPower Supervisor and Watchdog Timer

MAX16154DCBT 数据手册

通过下载MAX16154DCBT数据手册来全面了解它。这个PDF文档包含了所有必要的细节，如产品概述、功能特性、引脚定义、引脚排列图等信息。

PDF下载
EVALUATION KIT AVAILABLE  
Click here for production status of specific part numbers.  
MAX16152/MAX16153/  
MAX16154/MAX16155  
nanoPower Supervisor and Watchdog Timer  
General Description  
Benefits and Features  
The MAX16152/MAX16153/MAX16154/MAX16155 ultra-  
low-current supervisory circuits monitor a single system  
supply voltage and the integrity of code execution by a  
microprocessor or microcontroller. These supervisors as-  
● 400nA (typ) Supply Current  
● 1.2V to 5.5V Operating Supply Range  
● Monitors Supply Voltage and Provides System Reset  
Signal  
sert the reset output whenever the V  
supply voltage is  
● 1.5V to 5V Input Threshold Range in 100mV  
Increments  
● Watchdog Function Detects Faulty Code Execution  
● Open-Drain Reset and Watchdog Outputs  
● Watchdog Timer Enable Input  
● 6-Bump WLP Package  
CC  
greater than the minimum operating voltage, but less than  
the reset threshold. After the supply voltage rises above  
the reset threshold, the reset output remains asserted for  
the reset timeout period, and then de-asserts. Reset volt-  
age thresholds are available from 1.50V to 5.0V in approx-  
imately 100mV increments.  
● 6-Pin SOT23 Package  
● -40°C to +125°C Operating Temperature Range  
A watchdog timer circuit monitors microprocessor or mi-  
crocontroller activity. During normal operation, the micro-  
processor or microcontroller should repeatedly toggle the  
watchdog input (WDI) before the supervisor’s watchdog  
timeout period elapses to confirm that the system is exe-  
cuting code properly. If the microprocessor or microcon-  
troller does not provide a valid watchdog input transition  
before the timeout period expires, the supervisor asserts  
a watchdog (WDO) output to signal that the system is  
not executing code as expected. The watchdog output  
pulse can be used to reset the microprocessor or micro-  
controller, or it may be used to interrupt the system to  
warn of execution errors. The MAX16152 and MAX16153  
feature a manual reset input (MR) to allow an external  
pushbutton or logic signal to initiate a reset pulse. The  
MAX16154 and MAX16155 feature a logic input (WD_EN)  
that allows the system to enable and disable the watchdog  
function.  
Ordering Information appears at end of data sheet.  
The MAX16152 and MAX16154 are offered in a 0.86mm  
x 1.27mm 6-bump WLP, while the MAX16153 and  
MAX16155 are offered in 6-pin SOT23 package. All de-  
vices operate over the -40ºC to +125ºC temperature  
range.  
Applications  
● Portable/Battery-Powered Equipment  
● Tablets/e-Readers/Mobile Devices  
● Glucose Monitors/Patient Monitor  
● Metering  
19-100532; Rev 0; 4/2019  
MAX16152/MAX16153/  
MAX16154/MAX16155  
nanoPower Supervisor and Watchdog Timer  
Typical Application Circuit  
1.2V ≤ VIN ≤ 5.5V  
V
CC  
RST  
V
RST  
CC  
0.1µF  
MAX16155  
I/O  
WDI  
µP  
WD_EN  
WDO  
NMI  
GND  
GND  
www.maximintegrated.com  
Maxim Integrated | 2  
MAX16152/MAX16153/  
MAX16154/MAX16155  
nanoPower Supervisor and Watchdog Timer  
Absolute Maximum Ratings  
V
CC  
to GND.............................................................. -0.3V to +6V  
Continuous Power Dissipation (SOT23) (T = +70°C, derate  
A
WDI, WD_EN to GND................................... -0.3V to V  
WDO, RST to GND................................................... -0.3V to +6V  
Maximum Current, Any Pin (input/output) ........................... 20mA  
+ 0.3V  
8.70mW/°C above +70°C) ................................................696mW  
Operating Temperature Range...........................-40°C to +125°C  
Junction Temperature.......................................................+150°C  
CC  
Continuous Power Dissipation (WLP) (T = +70°C, derate 10.5  
A
mW/°C above +70°C)....................................................... 840mW  
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.  
Package Information  
6 WLP  
Package Code  
U6+1  
Outline Number  
21-0058  
90-0175  
Land Pattern Number  
Thermal Resistance, Four-Layer Board:  
Junction-to-Ambient (θ  
)
115  
80  
JA  
Junction-to-Case Thermal Resistance (θ  
)
JC  
6 SOT23  
Package Code  
W60C1+2  
21-100258  
—
Outline Number  
Land Pattern Number  
Thermal Resistance, Four-Layer Board:  
Junction-to-Case Thermal Resistance (θJC  
)
95  
For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages.  
Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different  
suffix character, but the drawing pertains to the package regardless of RoHS status.  
Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a  
four-layer board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/  
thermal-tutorial.  
www.maximintegrated.com  
Maxim Integrated | 3  
MAX16152/MAX16153/  
MAX16154/MAX16155  
nanoPower Supervisor and Watchdog Timer  
Electrical Characteristics  
((V  
= 1.2V to 5.5V, T = -40ºC to +125ºC. Limits over the operating temperature range and relevant supply voltage range are  
CC  
A
guaranteed by production test and/or characterization. Typical values are at T = +25ºC and V  
= V + 150mV.))  
TH  
A
CC  
PARAMETER  
SYMBOL  
CONDITIONS  
MIN  
TYP  
MAX  
UNITS  
Supply Voltage Range  
1.2  
5.5  
900  
5
V
Outputs not asserted, V  
150mV  
= V  
+
TH  
CC  
Supply Current  
400  
nA  
V
V
V
Threshold Range  
Reset Threshold  
1.5  
CC  
CC  
V
V
falling  
rising  
-2.5  
+2.5  
%
TH_AC  
CC  
Accuracy  
V
CC  
Reset Threshold  
V
V
0.4  
80  
%
μs  
%
CC  
Hysteresis  
falling from (V + 100mV) to (V  
-
TH  
CC  
TH  
V
CC  
to Reset Delay  
t
RD  
100mV)  
Reset Timeout Period  
Accuracy  
t
Note 1  
-50  
+50  
RP_AC  
WATCHDOG  
Watchdog Timeout  
Period Accuracy  
t
-50  
-50  
+50  
+50  
%
%
WD_AC  
Watchdog Startup Delay  
Accuracy  
t
START-UP_AC  
Time between low-to-high transition of  
WD_EN and watchdog timer enabled.  
Watchdog Setup Time  
t
300  
μs  
SETUP  
V
CC  
V
CC  
V
CC  
≥ 1.0V, I  
> 2.7V, I  
> 4.5V, I  
= 50μA  
0.3  
0.3  
0.4  
SINK  
SINK  
SINK  
Output Voltage Low  
V
OL  
= 1.2mA  
= 3.2mA  
V
Watchdog Input Pulse  
Width  
t
After WDO deasserted  
1
μs  
ms  
V
WDI  
Watchdog Output Pulse  
Width  
t
100  
300  
WDO  
0.8 x  
Input Voltage High  
V
IH  
V
CC  
0.3 x  
V
CC  
≥ 3.3V  
V
CC  
Input Logic-Low  
V
IL  
WDI, MR, WD_EN  
V
0.3 x  
1.5V ≥ V  
CC  
V
CC  
Watchdog Output  
Leakage Current  
V
V
= 0 to 5.5V, output deasserted  
1
μA  
μA  
ns  
ns  
WDO  
Reset Ouput Leakage  
Current  
= 0 to 5.5V, reset output  
RST  
1
deasserted  
WD_EN Input Glitch  
Rejection  
300  
200  
Manual Reset Input  
Glitch Rejection  
www.maximintegrated.com  
Maxim Integrated | 4  
 
MAX16152/MAX16153/  
MAX16154/MAX16155  
nanoPower Supervisor and Watchdog Timer  
Electrical Characteristics (continued)  
((V  
= 1.2V to 5.5V, T = -40ºC to +125ºC. Limits over the operating temperature range and relevant supply voltage range are  
CC  
A
guaranteed by production test and/or characterization. Typical values are at T = +25ºC and V  
= V + 150mV.))  
TH  
A
CC  
PARAMETER  
SYMBOL  
CONDITIONS  
MIN  
TYP  
MAX  
UNITS  
Manual Reset Input to  
Reset Output Delay  
t
250  
ns  
MRD  
MR, WDI, WD_EN. Input connected GND  
Input Leakage Current  
-1  
+1  
µA  
or V  
CC  
Note 1: In addition to the specified tolerance, t  
has an uncertainty of ±4ms due to the power-up delay of internal blocks.  
RP  
www.maximintegrated.com  
Maxim Integrated | 5  
MAX16152/MAX16153/  
MAX16154/MAX16155  
nanoPower Supervisor and Watchdog Timer  
Typical Operating Characteristics  
(V  
= 1.2V TO 5.5V, T = -40ºC TO 125ºC)  
CC  
A
www.maximintegrated.com  
Maxim Integrated | 6  
MAX16152/MAX16153/  
MAX16154/MAX16155  
nanoPower Supervisor and Watchdog Timer  
Pin Configurations  
6 WLP  
TOP VIEW  
MAX16152  
1
2
3
A
V
CC  
GND  
WDI  
RST  
WDO  
MR  
B
6 SOT23  
TOP VIEW  
6
5
1
2
RST  
V
CC  
MAX16153  
GND  
WDI  
MR  
4
3
WDO  
www.maximintegrated.com  
Maxim Integrated | 7  
MAX16152/MAX16153/  
MAX16154/MAX16155  
nanoPower Supervisor and Watchdog Timer  
6 WLP  
TOP VIEW  
MAX16154  
1
2
3
A
V
CC  
GND  
WDI  
RST  
WDO  
WD_EN  
B
6 SOT23  
TOP VIEW  
1
2
V
6
5
CC  
RST  
MAX16155  
GND  
WDI  
WD_EN  
WDO  
3
4
www.maximintegrated.com  
Maxim Integrated | 8  
MAX16152/MAX16153/  
MAX16154/MAX16155  
nanoPower Supervisor and Watchdog Timer  
Pin Description  
PIN  
NAME  
FUNCTION  
MAX1615 MAX1615 MAX1615 MAX1615  
2
3
1
2
4
5
1
2
Supply Voltage. V  
monitoring input. Bypass with a 0.1μF capacitor to GND.  
is the power supply input and the  
CC  
A3  
A2  
A3  
A2  
V
CC  
GND  
Ground  
Watchdog Input. If WDI remains either high or low for the  
duration of the watchdog timeout period (t ), WDO pulses low  
WD  
A1  
3
A1  
3
WDI  
for the watchdog output pulse width, t  
. The internal  
WDO  
watchdog timer clears whenever RST is de-asserted or  
whenever WDI sees a falling edge.  
Watchdog Output. WDO pulses low for the watchdog output  
B1  
B2  
—
4
5
B1  
—
4
—
5
WDO  
MR  
pulse width, t  
, when the internal watchdog times out.  
WDO  
WDO is an open-drain output and requires a pull-up resistor.  
Manual Reset Input. Drive MR low to manually reset the device.  
RST remains asserted for the reset timeout period after MR is  
released. MR is internally pulled up to VCC with a TBDkΩ  
resistor.  
Watchdog Enable Input. Drive WD_EN high to enable the  
watchdog timer. Drive WD_EN low to disable the watchdog  
timer.  
—
B2  
WD_EN  
Reset Output. RST asserts when V  
falls below the factory-set  
CC  
threshold. When V  
goes above V + V  
, RST remains  
CC  
TH  
HYS  
B3  
6
B3  
6
RST  
asserted for the reset timeout period t  
and then de-  
RP  
asserts. RST is an open-drain output and requires a pull up  
resistor.  
www.maximintegrated.com  
Maxim Integrated | 9  
MAX16152/MAX16153/  
MAX16154/MAX16155  
nanoPower Supervisor and Watchdog Timer  
Functional Diagrams  
MAX16152/MAX16153 Block Diagram  
MR  
MAX16152  
MAX16153  
V
V
CC  
CC  
V
CC  
RST  
RESET  
TIMEOUT  
PERIOD  
V
CC  
WDO  
VOLTAGE  
REFERENCE  
WATCHDOG  
TIMER  
TRANSITION  
DETECTOR  
WDI  
GND  
www.maximintegrated.com  
Maxim Integrated | 10  
MAX16152/MAX16153/  
MAX16154/MAX16155  
nanoPower Supervisor and Watchdog Timer  
Functional Diagrams (continued)  
MAX16154/MAX16155 Block Diagram  
MAX16154  
V
CC  
MAX16155  
VCC  
RST  
RESET  
TIMEOUT  
PERIOD  
V
CC  
VOLTAGE  
REFERENCE  
WDO  
WATCHDOG  
TIMER  
WD_EN  
TRANSITION  
DETECTOR  
WDI  
GND  
www.maximintegrated.com  
Maxim Integrated | 11  
MAX16152/MAX16153/  
MAX16154/MAX16155  
nanoPower Supervisor and Watchdog Timer  
Detailed Description  
The MAX16152/MAX16153/MAX16154/MAX16155 are ultra-low-current supervisory circuits that monitor a single system  
supply voltage and assert an active-low reset signal when the supply voltage drops below the factory-trimmed reset  
threshold. After the supply voltage rises above the threshold voltage, the reset output remains asserted during the  
reset timeout period, and finally asserts after the timeout period ends. In addition, a watchdog timer circuit monitors  
microprocessor or microcontroller activity. During normal operation, the microprocessor or microcontroller toggles the  
WDI input periodically with a valid logic transition (low to high or high to low). If the WDI input is toggled within  
the watchdog timeout period (t  
), the internal timer is cleared and restarted, and the WDO output remains high. If the  
WD  
input is not strobed before the timeout period expires, the watchdog output is asserted low for a period equal to the  
watchdog output pulse width (t  
).  
WDO  
Input Threshold  
The MAX16152/MAX16153/MAX16154/MAX16155 monitor V  
with ±2.5% accuracy across the full temperature and  
CC  
supply voltage ranges. The input threshold is programmable from 1.5V to 5V in approximately 100mV increments.  
Contact Maxim for thresholds not listed in the Ordering Information table.  
Watchdog  
The MAX16152/MAX16153/MAX16154/MX16155 offer flexible watchdog circuits for monitoring microprocessor or  
microcontroller activity. During normal operation, the internal timer is cleared and restarted each time the WDI input  
undergoes a valid logic transition (high-to-low) within the selected timeout period (t ). The WDO remains high as long  
WD  
as the WDI input is strobed within the selected timeout period. If the WDI input is not strobed before the timeout period  
expires, the watchdog output is asserted low for the watchdog output pulse width (t  
). The MAX16154 and MAX16155  
WDO  
feature a logic input to enable/disable the watchdog timer during normal operation while the MAX16152 and MAX16153  
does not. The watchdog timer for the MAX16152 and MAX16153 can be disabled by leaving the WDI floating.  
Watchdog Startup Delay  
All devices feature a factory-set startup delay. The startup delay provides an initial delay for the watchdog timer circuit  
to power up and initialize before assuming responsibility for normal watchdog input monitoring. For the MAX16152 and  
MAX16153, monitoring of the WDI input begins after the start-up time is complete. For the MAX16154 and MAX16155,  
monitoring of the WDI input begins after the start-up delay if WD_EN is pulled high. To ensure that the system generates  
no undesired watchdog outputs, the routine watchdog input transitions should begin before the minimum startup delay  
period has expired. The startup delay is activated after the reset output is de-asserted. See the Selector Guide for  
available watchdog startup delay options.  
Watchdog Timeout Period  
An open-drain, active-low watchdog output (WDO) asserts if a valid watchdog input transition is not received before the  
timeout period elapses. See the Selector Guide for available watchdog timeout period options.  
Watchdog Enable Input (WD_EN)  
The MAX16154 and MAX16155 feature an active-high logic input (WD_EN) to enable or disable the watchdog function.  
Applying a logic-low to WD_EN disables the watchdog function, causing the MAX16154 and MAX16155 to ignore any  
signals applied to WDI. Applying a logic-high to WD_EN enables the watchdog function after 300μs (max) of set up time  
t
. See Figure 1, Figure 2, and Figure 3 for more details.  
SETUP  
www.maximintegrated.com  
Maxim Integrated | 12  
MAX16152/MAX16153/  
MAX16154/MAX16155  
nanoPower Supervisor and Watchdog Timer  
V
TH  
V
CC (MIN)  
V
CC  
WD_EN  
tRP  
RST  
t
t
WD  
STARTUP  
t
WD  
t
WD  
WDI  
A
B
E F  
C
D
G
t
WDO  
t
WDO  
WDO  
TRANSITION(S) ON WDI INGORED DURING STARTUP DELAY PERIOD.  
A
B
WATCHDOG TIMER STARTS AFTER STARTUP DELAY AND WDO IS DEASSERTED.  
C
TRANSITION ON WDI OCCURS BEFORE WATCHDOG TIMES OUT PERIOD. WATCHDOG TIMER CLEARS AND  
D
RESTARTS TIMER EVERY TIME THERE IS A LOW TO HIGH OR HIGH TO LOW TRANSITION WITH tWD  
.
E
F
WATCHDOG TIMES OUT, WDO ASSERTS AND THE NEXT WATCHDOG TIMER STARTS AT THE FALLING EDGE OF WDO.  
TRANSITIONS ON WDI INGNORED WHEN WDO ASSERTED.  
G
WATCHDOG TIMES OUT, WDO ASSERTS.  
Figure 1. Watchdog Timing Characteristics with WD_EN Active During Power-Up  
www.maximintegrated.com  
Maxim Integrated | 13  
MAX16152/MAX16153/  
MAX16154/MAX16155  
nanoPower Supervisor and Watchdog Timer  
V
TH  
V
CC (MIN)  
V
CC  
WD_EN  
tRP  
RST  
t
t
WD  
STARTUP  
t
WD  
t
WD  
WDI  
A
B
E
F
G
C
D
t
WDO  
t
WDO  
WDO  
TRANSITIONS ON WDI INGORED DURING tRP and tSTARTUP DELAY.  
B
A
WATCHDOG TIMER STARTS AFTER STARTUP DELAY AND WD_EN IS DRIVEN HIGH.  
C
D
TRANSITION ON WDI OCCURS BEFORE WATCHDOG TIMEOUT PERIOD. WATCHDOG TIMER CLEARS AND RESTARTS TIMER EVERY  
TIME THERE IS A LOW TO HIGH OR HIGH TO LOW TRANSITION WITH tWD  
.
E
F
WATCHDOG TIMES OUT, WDO ASSERTS AND THE NEXT WATCHDOG TIMER STARTS AT THE FALLING EDGE OF WDO.  
TRANSITIONS ON WDI INGNORED WHEN WDO ASSERTED.  
G
WATCHDOG TIMES OUT, WDO ASSERTS.  
Figure 2. Watchdog Timing Characteristics with WD_EN Active During Startup  
www.maximintegrated.com  
Maxim Integrated | 14  
MAX16152/MAX16153/  
MAX16154/MAX16155  
nanoPower Supervisor and Watchdog Timer  
V
TH  
V
CC (MIN)  
V
CC  
WD_EN  
tRP  
RST  
t
START-UP  
t
WD  
t
WD  
WDI  
A
B
D
C
E
F
G
H
t
WDO  
t
WDO  
WDO  
A
B
C
D
E
TRANSITIONS ON WDI INGORED DURING tRP and tSTARTUP DELAY.  
WATCHDOG DOES NOT START AFTER START-UP PERIOD SINCE WD_EN IS HELD LOW.  
TRANSITION ON WDI IGNORED WHEN WD_EN IS HELD LOW.  
WATCHDOG TIMER STARTS AFTER RISING EDGE ON WD_EN.  
F
G
H
WATCHDOG TIMES OUT, WDO ASSERTS AND THE NEXT WATCHDOG TIMER STARTS AT THE FALLING EDGE OF WDO.  
TRANSITION ON WDI IGNORED AFTER WDO ASSERTS.  
WATCHDOG TIMES OUT, WDO ASSERTS.  
Figure 3. Watchdog Timing Characteristics with WD_EN Active After Startup Time  
Watchdog Input Signal  
Watchdog timing is measured from the last WDI falling edge associated with a pulse of at least 1µs (min) in width.  
WDI transitions are ignored when WDO and/or RST are asserted, and during the startup delay period. Watchdog input  
transitions are also ignored for a setup period (t  
) of up to 300μs after WD_EN is asserted.  
SETUP  
www.maximintegrated.com  
Maxim Integrated | 15  
MAX16152/MAX16153/  
MAX16154/MAX16155  
nanoPower Supervisor and Watchdog Timer  
Reset Timeout Period  
The MAX16152/MAX16153/MAX16154/MAX16155 feature an active-low open-drain reset output (RST) that asserts  
low when V drops below the factory-set threshold voltage, V . The reset output remains asserted as long as  
CC  
TH  
V
CC  
remains below the threshold voltage. When V  
rises above the threshold voltage plus the required hysteresis,  
CC  
the reset output remains asserted during the reset timeout period, and then de-asserts. See Figure 4 for more  
details. Contact Maxim for reset timeout period options not listed in the Ordering Information table.  
V
V
TH+ HYS  
V
V
TH + HYS  
V
TH  
V
CC (MIN)  
V
CC  
t
t
RP  
RP  
RST  
Figure 4. Reset Output Timing Diagram  
Note: The reset timeout period does not include additional power up delay specified in the Electrical Characteristics table.  
www.maximintegrated.com  
Maxim Integrated | 16  
 
MAX16152/MAX16153/  
MAX16154/MAX16155  
nanoPower Supervisor and Watchdog Timer  
Manual Reset  
The MAX16152 and the MAX16153 include an active-low manual reset input, MR. Forcing MR low asserts the reset  
output after 250ns (typ) delay period (t ). The reset output remains asserted as long as MR is held low. The  
MRD  
reset output de-asserts after the reset timeout period when MR is released. See Figure 5 below for MR timing  
characteristics. MR has an internal pullup resistor to V and can be left unconnected if not used.  
CC  
V
+ V  
HYS  
TH  
V
CC (MIN)  
V
CC  
t
RP  
t
RP  
t
STARTUP  
t
STARTUP  
RST  
WDI PULSES IGNORED  
WDO  
t < t  
WD  
WDI  
MR  
Figure 5. Manual Reset Input Timing Characteristics  
www.maximintegrated.com  
Maxim Integrated | 17  
 
MAX16152/MAX16153/  
MAX16154/MAX16155  
nanoPower Supervisor and Watchdog Timer  
Applications Information  
Power Supply Bypassing  
The MAX16152/MAX16153/MAX16154/MAX16155 operate from a 1.20V to 5.5V supply. Bypass V  
to ground with a  
CC  
0.1μF capacitor as close to the device as possible to improve transient immunity. For fast-rising V  
transients, additional  
CC  
capacitance may be required. V  
rise time >50µs ensures proper operation.  
CC  
Watchdog Software Considerations  
To help the watchdog timer monitor software execution more closely, set and reset the watchdog input at different points  
in the program, rather than pulsing the watchdog input high-low-high or low-high-low. This technique avoids a stuck loop,  
in which the watchdog timer would continue to be reset inside the loop, keeping the watchdog from timing out. Figure 6  
shows an example of a flow diagram where the I/O driving the watchdog input is set high at the beginning of the program,  
set low at the end of every subroutine or loop, then set high again when the program returns to the beginning. If the  
program should hang in any subroutine, the problem would be quickly corrected, since the I/O is continually set low and  
the watchdog timer is allowed to time out, causing WDO to pulse.  
START  
SET WDI  
HIGH  
PROGRAM  
CODE  
POSSIBLE INFINITE  
LOOP PTH  
SUBROUTINE OR  
PROGRAM LOOP  
SET WDI LOW  
RETURN  
Figure 6. Watchdog Flow Diagram  
Negative-Going V  
Transients Protection  
CC  
The MAX16152/MAX16153/MAX16154/MAX16155 are relatively immune to short-duration negative-going  
transients (glitches). It is usually undesirable to reset the system when V experiences only small glitches. The  
V
CC  
CC  
Typical Operating Characteristics show Maximum Transient Duration vs. Reset Threshold Overdrive, for which reset  
pulses are not generated. The graph was produced using negative-going V  
pulses, starting above V  
and ending  
TH  
CC  
www.maximintegrated.com  
Maxim Integrated | 18  
 
MAX16152/MAX16153/  
MAX16154/MAX16155  
nanoPower Supervisor and Watchdog Timer  
below the reset threshold by the magnitude indicated (reset threshold overdrive). The graph shows the maximum pulse  
width that a negative-going V transient may typically have without causing a reset pulse to be issued. As the amplitude  
CC  
of the transient increases (i.e., goes farther below the reset threshold), the maximum allowable pulse width decreases. A  
0.1µF bypass capacitor mounted close to the V  
pin provides additional transient immunity.  
CC  
Selector Guide  
MAX161__ __ __ __ __ +T  
WD STARTUP  
DELAY (MIN)  
PACKAGE  
WLP  
VTH  
1.5V  
1.8V  
2.5V  
3.3V  
5.0V  
WD TIMEOUT  
DELAY (MIN)  
PART#  
52  
SUF  
A
SUF  
B
SUF  
A
SUF  
tRP (MIN)  
100µs  
100µs  
A
B
C
D
1s  
C
D
E
F
53  
SOT23  
WLP  
B
16ms  
128ms  
256ms  
B
C
D
4s  
4s  
54  
C
16s  
16s  
64s  
55  
SOT23  
D
64s  
Ordering Information  
PART NUMBER  
MAX16152_ _ _ _ +T*  
MAX16153_ _ _ _ +T*  
MAX16154_ _ _ _+T*  
MAX16155ABAD+T  
TEMPERATURE RANGE  
-40ºC to +125ºC  
PIN-PACKAGE  
6 WLP  
-40ºC to +125ºC  
6 SOT23  
6 WLP  
-40ºC to +125ºC  
-40ºC to +125ºC  
6 SOT23  
Note: See the Selector Guide for reset timeout period, threshold voltage, watchdog start up delay, and watchdog timeout options. For  
additional options and future products, please visit www.maximintegrated.com.  
+ Denotes a lead(Pb)-free/RoHS-compliant package.  
T = Tape-and-reel.  
*Future product—Contact factory for availability.  
www.maximintegrated.com  
Maxim Integrated | 19  
MAX16152/MAX16153/  
MAX16154/MAX16155  
nanoPower Supervisor and Watchdog Timer  
Revision History  
REVISION REVISION  
PAGES  
DESCRIPTION  
CHANGED  
NUMBER  
DATE  
0
4/19  
Initial release  
—
For pricing, delivery, and ordering information, please visit Maxim Integrated’s online storefront at https://www.maximintegrated.com/en/storefront/storefront.html.  
Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent  
licenses are implied. Maxim Integrated 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.  
Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.  
© 2018 Maxim Integrated Products, Inc.  

MAX16154DCBT 相关器件

型号 制造商 描述 价格 文档
MAX16154DCCT MAXIM nanoPower Supervisor and Watchdog Timer 获取价格
MAX16154DCDC+T MAXIM Power Supply Management Circuit, 获取价格
MAX16154DCDT MAXIM nanoPower Supervisor and Watchdog Timer 获取价格
MAX16154DDAT MAXIM nanoPower Supervisor and Watchdog Timer 获取价格
MAX16154DDBT MAXIM nanoPower Supervisor and Watchdog Timer 获取价格
MAX16154DDCT MAXIM nanoPower Supervisor and Watchdog Timer 获取价格
MAX16154DDDT MAXIM nanoPower Supervisor and Watchdog Timer 获取价格
MAX16154DEAT MAXIM nanoPower Supervisor and Watchdog Timer 获取价格
MAX16154DEBT MAXIM nanoPower Supervisor and Watchdog Timer 获取价格
MAX16154DECT MAXIM nanoPower Supervisor and Watchdog Timer 获取价格

MAX16154DCBT 相关文章

  • 多层 PCB 设计探究：过孔如何 “致命” 影响高频信号传输
    2025-06-13
    8
  • 英伟达携手多方势力，推进 AI 数据中心 800V HVDC 架构落地
    2025-06-13
    9
  • 台积电 SoW - X 封装技术：集成 80 个 HBM4，引领 AI 半导体未来
    2025-06-13
    12
  • 伺服电机全解析：工作原理、构成及应用
    2025-06-13
    19

    • 热门型号

  • 1N5930
  • 1N5942B
  • 1N4001
  • MBR3050CT
  • RTA02-8D
  • 4116T
  • 5KP43A/4
  • 1N5260A
  • MC79L05
  • BZX85C30
  • 9510-G
  • W2PE-54WZ-P
  • 1N6063
  • 2SA673
  • 20IMX35
    • Hi,有什么可以帮您？ 在线客服 或 微信扫码咨询
  • 概述
  • 数据手册
    • 2025 ICPDF网 联系我们和版权申明:QQ 272164286