MAX6886_12 Datasheet, PDF (1/13 Pages) Maxim Integrated Products – Pin-Selectable, Hex Power-Supply Supervisory Circuit

19-3587; Rev 1; 1/12
Pin-Selectable, Hex Power-Supply
Supervisory Circuit
General Description
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.
Applications
Multivoltage Systems
Telecom
Networking
Servers/Workstations/Storage Systems
Pin Configuration appears at end of data sheet.
12V
DC-DC
1
DC-DC
2
DC-DC
3
DC-DC
4
Features
o 32 Pin-Selectable Undervoltage Detector
Thresholds
o Capacitor-Adjustable Reset and Watchdog
Timeout Periods
o 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
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
MAX6886ETP+
-40°C to +85°C
20 TQFN-EP*
+Denotes a lead(Pb)-free/RoHS-compliant package.
Typical Operating Circuit
12V
5V
3.3V
2.5V
1.8V
1.5V
1.2V
3.3V ALWAYS ON
IN1
IN2
IN3
IN4
V_CC
DBP
MAX6886
TH0
TH1
TH2
TH3
TH4
SRT
SWT
IN5
IN6
RESET
WDI
MARGIN
MR
GND
RESET
LOGIC OUTPUT
µP
________________________________________________________________ Maxim Integrated Products 1
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.