MAX6886ETP Maxim Integrated, MAX6886ETP Datasheet

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MAX6886ETP

Manufacturer Part Number
MAX6886ETP
Description
Supervisory Circuits
Manufacturer
Maxim Integrated
Series
MAX6886r
Datasheet

Specifications of MAX6886ETP

Number Of Voltages Monitored
6
Undervoltage Threshold
Adjustable
Overvoltage Threshold
Adjustable
Manual Reset
Resettable
Watchdog
Watchdog
Supply Voltage - Max
5.8 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Package / Case
TQFN-16
Maximum Power Dissipation
1702 mW
Minimum Operating Temperature
- 40 C
Supply Current (typ)
900 uA
Supply Voltage - Min
2.7 V

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MAX6886ETP+
Manufacturer:
Maxim Integrated Products
Quantity:
135
The MAX6886 pin-selectable, multivoltage supply
supervisor monitors six voltage-detector inputs and one
watchdog input, asserting a RESET when inputs drop
below the selected voltage thresholds or the watchdog
timer expires. Manual reset and margin disable inputs
offer additional flexibility.
Five logic inputs select the MAX6886 thresholds. Logic
inputs select a supply tolerance (5% or 10%) and 1 of
32 factory-set threshold settings. Connect external
capacitors or use the factory default setting to set the
watchdog timeout periods and reset time delay.
The MAX6886 is available in a 20-pin TQFN (5mm x
5mm x 0.8mm) package and operates over the extend-
ed -40°C to +85°C temperature range.
19-3587; Rev 1; 1/12
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
Pin Configuration appears at end of data sheet.
Multivoltage Systems
Telecom
Networking
Servers/Workstations/Storage Systems
3.3V ALWAYS ON
________________________________________________________________ Maxim Integrated Products
12V
General Description
DC-DC
1
DBP
TH0
TH1
TH2
TH3
TH4
V
CC
IN1
Pin-Selectable, Hex Power-Supply
DC-DC
Applications
2
SRT
IN2
DC-DC
3
SWT
IN3
MAX6886
DC-DC
4
IN4
o 32 Pin-Selectable Undervoltage Detector
o Capacitor-Adjustable Reset and Watchdog
o Factory Default Reset and Watchdog Timeout
o Margining Disable and Manual Reset Controls
o -40°C to +85°C Operating Temperature Range
o Small 5mm x 5mm 20-Pin Thin QFN Package
o Few External Components
o ±1% Threshold Accuracy
+ Denotes a lead(Pb)-free/RoHS-compliant package.
MAX6886ETP+
Thresholds
Timeout Periods
Periods
IN5
PART
Supervisory Circuit
GND
MARGIN
RESET
Typical Operating Circuit
IN6
WDI
1.5V
MR
-40°C to +85°C
Ordering Information
TEMP RANGE
1.2V
RESET
LOGIC OUTPUT
µP
PIN-PACKAGE
20 TQFN-EP*
12V
5V
3.3V
2.5V
1.8V
Features
1

Related parts for MAX6886ETP

MAX6886ETP Summary of contents

Page 1

... Factory Default Reset and Watchdog Timeout Periods o Margining Disable and Manual Reset Controls o -40°C to +85°C Operating Temperature Range o Small 5mm x 5mm 20-Pin Thin QFN Package o Few External Components o ±1% Threshold Accuracy PART MAX6886ETP+ + Denotes a lead(Pb)-free/RoHS-compliant package. 2 DC-DC 3 DC-DC 4 IN2 ...

Page 2

Pin-Selectable, Hex Power-Supply Supervisory Circuit ABSOLUTE MAXIMUM RATINGS (All voltages referenced to GND.) , RESET, SRT, SWT .............................-0.3V to +6V IN1–IN6 TH0–TH4, WDI, MR, MARGIN ..................................-0.3V to +6V DBP ..........................................................................-0.3V to +3V Input/Output Current (all pins)..........................................±20mA Continuous Power ...

Page 3

ELECTRICAL CHARACTERISTICS (continued) = 2.7V to 5.8V, WDI = GND, TH0–TH4 = MARGIN = MR = DBP – IN1 IN4 CC Typical values are +25°C.) (Notes PARAMETER SYMBOL MR, MARGIN, ...

Page 4

Pin-Selectable, Hex Power-Supply Supervisory Circuit = 5V, WDI = GND, TH0–TH4 = MARGIN = MR = DBP – IN1 IN4 CC IN1–IN4 SUPPLY CURRENT vs. IN1–IN4 SUPPLY VOLTAGE 1.00 0. +85°C A 0.90 0.85 ...

Page 5

WDI = GND, TH0–TH4 = MARGIN = MR = DBP – IN1 IN4 RESET OUTPUT PROPAGATION DELAY vs. TEMPERATURE 3.00 2.75 2.50 2.25 2.00 1.75 1.50 1.25 1.00 -40 -15 10 ...

Page 6

Pin-Selectable, Hex Power-Supply Supervisory Circuit PIN NAME 4 GND Ground Watchdog Timer Input. Logic input for the watchdog timer function. If WDI is not strobed with a valid low-to-high or high-to-low transition within the selected timeout period, RESET asserts. WDI ...

Page 7

Pin-Selectable, Hex Power-Supply IN1 IN2 IN2 DETECTOR IN3 IN3 DETECTOR IN4 IN4 DETECTOR IN5 IN5 DETECTOR IN6 IN6 DETECTOR VIRTUAL DIODES V CC REFERENCE 1µF 2.55V LDO DBP 1µF *SEE THE VOLTAGE-DETECTOR INPUTS (IN_) SECTION FOR ADJUSTABLE INPUTS. _______________________________________________________________________________________ *IN_ ...

Page 8

Pin-Selectable, Hex Power-Supply Supervisory Circuit Detailed Description The MAX6886 pin-selectable, multivoltage supply supervisor monitors six voltage-detector inputs and one watchdog input. RESET asserts when any of the config- ured input thresholds have been reached assert- ed, or the ...

Page 9

IN inputs only at power-up. Use the voltage-divider circuit of Figure 1 and Equation 1 to set the threshold for the user-adjustable inputs as described in the Voltage-Detector Inputs (IN_) section. Many microprocessor-based (µP) products require manual reset capability ...

Page 10

Pin-Selectable, Hex Power-Supply Supervisory Circuit Table 2. Threshold Options SELECTION TH4–TH0* IN1 1 11111 4.62 2 11110 4.62 3 11101 4.62 4 11100 4.62 5 11011 4.62 6 11010 4.62 7 11001 4.62 8 11000 4.62 9 10111 3.06 10 ...

Page 11

Margin Output Disable ( MARGIN allows system-level testing while power sup- plies exceed the normal operating ranges. Drive MARGIN low to hold RESET in its existing state while system-level testing occurs. Leave MARGIN uncon- nected or connect to DBP if ...

Page 12

Pin-Selectable, Hex Power-Supply Supervisory Circuit Set the RESET time delay by connecting a capacitor from SRT to GND using the following equation SRT 4 348 . x 10 where seconds and C is ...

Page 13

... 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. 13 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2012 Maxim Integrated Products ...

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