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MAX6766 PDF预览

MAX6766

更新时间: 2024-11-14 14:57:51
品牌 Logo 应用领域
亚德诺 - ADI 电子监控稳压器
页数 文件大小 规格书
23页 1797K
描述
用于汽车电子的微功耗线性稳压器,带有监控电路

MAX6766 数据手册

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EVALUATION KIT AVAILABLE  
Click here for production status of specific part numbers.  
MAX6765–MAX6774  
Automotive Micropower Linear Regulators  
with Supervisor  
General Description  
Features  
● Low 31μA Quiescent Current  
The MAX6765–MAX6774B are low-quiescent-current,  
high-voltage linear regulators that operate from 4V to 72V  
and deliver up to 100mA of load current. These low-power  
devices consume only 31µA of quiescent current, mak-  
ing them ideal for always-on automotive modules. These  
devices are offered with fixed standard output options of  
5.0V, 3.3V, 2.5V, and 1.8V, or can be adjusted from 1.8V  
to 11V with two external resistors.  
4V to 72V Wide Input Voltage Range  
100mA Output Current Capability  
Dropout Voltage of 620mV with 5V Output at 100mA  
Fixed Output-Voltage Options: 5V, 3.3V, 2.5V, and 1.8V  
Watchdog Timer Option (1.6s (MAX6773/MAX6774)  
and 50ms (MAX6773B/MAX6774B))  
Adjustable Output Voltages from 1.8V to 11V  
Open-Drain or Push-Pull RESET Output  
Fixed or Capacitor-Adjustable Reset Timeouts  
Small, Thermally Enhanced 1.9W, 3mm x 3mm  
TDFN Package  
Overtemperature and Short-Circuit Protection  
Fully Specified from -40°C to +125°C  
● AEC-Q100 qualified (MAX6765TT_D_/V+,  
MAX6767TA_D_/V+, MAX6769TA_D_/V+,  
MAX6773TA_D_/V+ , MAX6773BTA_D_/V+ only)  
The MAX6765–MAX6774B feature a push-pull or open-  
drain, active-low RESET output with either fixed or adjustable  
thresholds. Whenever the regulator’s output falls below  
the reset threshold, the RESET output asserts and  
remains asserted for at least the minimum reset timeout  
period after the output voltage exceeds its threshold. The  
minimum reset timeout period is offered with fixed values  
from 75µs to 200ms or can be adjusted externally with a  
small capacitor.  
These devices provide three regulator enable modes  
to accommodate several power-on schemes. The  
MAX6765/MAX6766/MAX6769/MAX6770/MAX6773/  
MAX6773B/MAX6774/MAX6774B feature a single tradi-  
tional enable input (ENABLE) to turn on and off the regu-  
lator. The MAX6771/MAX6772 provide dual enable inputs  
(ENABLE1 and ENABLE2) to turn on and off the regulator  
either through an ignition switch or a bus transceiver. The  
MAX6767/MAX6768 provide a hold input (HOLD) in addi-  
tion to the enable input to allow for the implementation of a  
self-holding circuit without requiring external components.  
Setting HOLD low after enabling the regulator forces the  
regulator to remain on even if ENABLE is subsequently  
set low. Releasing HOLD shuts down the regulator.  
Ordering Information  
TEMP  
RANGE  
PIN-  
PACKAGE  
PART  
MAX6765TT_D_+  
-40°C to +125°C 6 TDFN-EP*  
-40°C to +125°C 6 TDFN-EP*  
MAX6765TT_D_/V+  
Ordering Information continued at end of data sheet.  
The first “_” is a placeholder for the voltage output and reset  
threshold. The 2nd “_” designates the fixed reset-timeout option.  
See Tables 1 and 2 for details. For example, the MAX6765TTLD4  
has a 5V output, a reset threshold of 4.65V, and a 200ms typical  
reset timeout.  
The MAX6773/MAX6773B/MAX6774/MAX6774B also  
include a watchdog input that monitors a pulse train from  
the microprocessor (µP) and generates a reset pulse if  
the watchdog input remains high or low for a duration  
longer than the 1.6s (typ) (MAX6773/MAX6774) or 50ms  
(typ) (MAX6773B/MAX6774B) watchdog timeout period.  
+Denotes a lead(Pb)-free/RoHS-compliant package.  
/V denotes an automotive qualified part.  
*EP = Exposed pad.  
For tape-and-reel orders add a “T” after the “+” symbol to com-  
plete the part number. Tape-and-reel orders are available in  
2.5k increments. Nonstandard versions require a 10k minimum  
order quantity.  
The MAX6765–MAX6774B are available in a small, ther-  
mally enhanced 3mm x 3mm TDFN package that can  
dissipate up to 1.951W, thereby supporting continuous  
regulator operation during high ambient temperatures,  
high battery voltage, and high load-current conditions.  
Pin Configurations  
TOP VIEW  
6
5
4
The MAX6765–MAX6774B are fully specified for a -40°C  
to +125°C operating temperature range.  
MAX6765  
MAX6766  
Applications  
Automotive  
Industrial  
Telecom  
EP  
+
1
2
3
TDFN  
Pin Configurations continued at end of data sheet.  
Typical Application Circuit and Selector Guide appear at  
end of data sheet.  
19-0657; Rev 10; 11/18  

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