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MAX16004_12 PDF预览

MAX16004_12

更新时间: 2024-02-13 18:30:03
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描述
Low-Voltage, Quad-/Hex-/Octal-Voltage μP Supervisors

MAX16004_12 数据手册

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MAX16000–MAX16007  
Low-Voltage, Quad-/Hex-/Octal-Voltage  
µP Supervisors  
General Description  
Features  
The MAX16000–MAX16007 are low-voltage, quad-/hex-/  
octal-voltage µP supervisors in small TQFN and TSSOP  
packages. These devices provide supervisory functions for  
complex multivoltage systems. The MAX16000/  
MAX16001/MAX16002 monitor four voltages, the  
MAX16003/MAX16004/MAX16005 monitor six voltages,  
and the MAX16006/MAX16007 monitor eight voltages.  
o Fixed Thresholds for 5V, 3.3V, 3V, 2.5V, 1.8V,  
1.5V, 1.2V, and 0.9V Systems  
o Adjustable Thresholds Monitor Voltages Down to  
0.4V  
o Open-Drain Outputs with Internal Pullups Reduce  
the Number of External Components  
o Fixed 140ms (min) or Capacitor-Adjustable Reset  
Timeout  
o Manual Reset, Margin Enable, and Tolerance  
Select Inputs  
o Watchdog Timer  
The MAX16000/MAX16001/MAX16003/MAX16004/  
MAX16006 offer independent outputs for each moni-  
tored voltage. The MAX16001/MAX16002/MAX16004–  
MAX16007 offer a reset output that asserts whenever  
any of the monitored voltages fall below their respective  
thresholds or the manual reset input is asserted. The  
reset output remains asserted for the reset timeout after  
all voltages are above their respective thresholds and  
the manual reset input is deasserted. The minimum  
reset timeout is internally set to 140ms or can be adjust-  
ed with an external capacitor.  
1.6s (typ) Timeout Period  
54s Startup Delay After Reset (Except MAX16005)  
o Independent Watchdog Output (MAX16005)  
o RESET Output Indicates All Voltages Present  
o Independent Voltage Monitors  
All open-drain outputs have internal 30µA pullups that  
eliminate the need for external pullup resistors.  
However, each output can be driven with an external  
voltage up to 5.5V. Other features offered include a  
manual reset input, a tolerance pin for selecting 5% or  
10% input thresholds, and a margin enable function for  
deasserting the outputs during margin testing.  
o Guaranteed Correct Logic State Down to V = 1V  
o Small (4mm x 4mm) TQFN Package  
o TSSOP (5mm x 4.4mm) Package (MAX16005)  
CC  
Ordering Information  
PART  
TEMP RANGE  
PIN-PACKAGE  
The MAX16001/MAX16002/MAX16004–MAX16007 offer  
a watchdog timer that asserts RESET or an indepen-  
dent watchdog output (MAX16005) when the watchdog  
timeout period (1.6s typ) is exceeded. The watchdog  
timer can be disabled by leaving the input open.  
MAX16000_TC+  
-40°C to +125°C  
12 TQFN-EP*  
Note: The “_” is a placeholder for the input voltage threshold.  
See Table 1.  
+Denotes a lead(Pb)-free/RoHS-compliant package.  
For tape-and-reel, add a “T” after the “+.” Tape-and-reel are  
offered in 2.5k increments.  
These devices are offered in 12-, 16-, 20-, and 24-pin  
TQFN and 16-pin TSSOP packages. These are fully  
specified from -40°C to +125°C.  
*EP = Exposed pad.  
Ordering Information continued at end of data sheet.  
Typical Operating Circuit  
Applications  
Storage Equipment  
V
SRT  
MARGIN  
CC  
Servers  
V
V
IN1  
IN2  
IN3  
IN4  
IN1  
IN2  
Networking/Telecommunication Equipment  
Multivoltage ASICs  
MAX16005  
V
V
V
V
IN3  
IN4  
IN5  
IN6  
µP  
RESET  
WDI  
RST  
IN5  
IN6  
MR  
I/O  
WDO  
NMI  
GND TOL  
Selector Guide appears at end of data sheet.  
For pricing, delivery, and ordering information, please contact Maxim Direct  
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.  
19-3870; Rev 6; 8/12  

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