Document
19-0169; Rev 1; 11/05
±5V, ±12V (±15V) Dedicated Microprocessor Voltage Monitors
_______________General Description
The MAX8215 contains five voltage comparators; four are for monitoring +5V, -5V, +12V, and -12V, and the fifth monitors any desired voltage. The MAX8216 is identical, except it monitors ±15V supplies instead of ±12V. The resistors required to monitor these voltages and provide comparator hysteresis are included onchip. All comparators have open-drain outputs. These devices consume 250µA max supply current over temperature.
____________________________Features
♦ 4 Dedicated Comparators plus 1 Auxiliary Comparator ♦ 5V Dedicated Comparator Has ±1.25% Accuracy ♦ -5V, +12V, -12V, +15V, -15V Dedicated Comparators Have ±1.5% Accuracy ♦ Overvoltage/Undervoltage Detection or Programmable Delay Using Auxiliary Comparator ♦ Internal 1.24V Reference with ±1% Initial Accuracy ♦ Wide Supply Range: 2.7V to 11V ♦ Built-In Hysteresis ♦ 250µA Max Supply Current Over Temp. ♦ Independent Open-Drain Outputs ♦ All Precision Components Included
MAX8215/MAX8216
________________________Applications
Microprocessor Voltage Monitor +5V, -5V, +12V, -12V Supply Monitoring (MAX8215) +5V, -5V, +15V, -15V Supply Monitoring (MAX8216) Overvoltage/Undervoltage Detection with Uncommitted Comparator Industrial Controllers Mobile Radios Portable Instruments Industrial Equipment Data-Acquisition Systems
______________Ordering Information
PART MAX8215CPD MAX8215CSD MAX8215C/D MAX8215EPD MAX8215ESD MAX8215EJD MAX8215MPD MAX8215MJD TEMP RANGE 0°C to +70°C 0°C to +70°C 0°C to +70°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -55°C to +125°C -55°C to +125°C PIN-PACKAGE 14 Plastic DIP 14 SO Dice* 14 Plastic DIP 14 SO 14 CERDIP 14 Plastic DIP 14 CERDIP
__________Typical Operating Circuit
0.1µF GND PGND +5V VDD OUT1
+5V
-5V MAX8215 MAX8216 OUT2
*Dice are tested at T A = +25°C. Devices in PDIP and SO packages are available in both leaded and lead-free packaging. Specify lead free by adding the + symbol at the end of the part number when ordering. Lead free not available for CERDIP package. Ordering Information continued on last page.
__________________Pin Configuration
+12V (+15V)
TOP VIEW
OUT3
VREF 1 2 14 VDD 13 OUT1
-12V (-15V) OUT4
GND
+5V 3 -5V 4 +12V (+15V) -12V (-15V) 5 6
MAX8215 MAX8216
12 OUT2 11 OUT3 10 OUT4 9 8 DOUT PGND
DIN
DOUT
DIN 7
DIP/SO
( ) ARE FOR MAX8216 ONLY. 1.24V REFERENCE VREF
( ) ARE FOR MAX8216 ONLY.
________________________________________________________________ Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642,or visit Maxim’s website at www.maxim-ic.com.
http://www.Datasheet4U.com/
±5V, ±12V (±15V) Dedicated Microprocessor Voltage Monitors MAX8215/MAX8216
ABSOLUTE MAXIMUM RATINGS
VDD ............................................................................-0.3V, +12V VREF..............................................................-0.3V, (VDD + 0.3V) OUT_, DOUT Outputs....................................-0.3V, (VDD + 0.3V) +5V Input...................................................................+20V, -0.3V -5V, +12V, +15V, -12V, -15V Inputs.....................................±50V DIN Input .......................................................(VDD + 0.3V), -0.3V Continuous Power Dissipation (TA = +70°C) Plastic DIP (derate 10.00mW/°C above +70°C) ...........800mW SO (derate 8.33mW/°C above +70°C) ..........................667mW CERDIP (derate 9.09mW/°C above +70°C) ..................727mW Operating Temperature Ranges: MAX821_C_ _ ......................................................0°C to +70°C MAX821_E_ _....................................................-40°C to +85°C MAX821_M_ _ .................................................-55°C to +125°C Storage Temperature Range .............................-65°C to +165°C Lead Temperature (soldering, 10sec) .............................+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress rating s only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specificatio ns is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(VDD = +5V, GND = 0V, TA = TMIN to TMAX, unless otherwise noted.) PARAMETER POWER SUPPLY VDD Supply Voltage Range IDD Supply Current REFERENCE OUTPUT TA = +25°C Output Voltage Tolerance Referred to 1.24V Load Current Load Regulation Line Regulation Output Tempco COMPARATOR INPUTS VIN decreasing, TA = +25°C MAX821_C +5V Trip Level TA = TMIN to TMAX VIN increasing TA = +25°C +5V Trip Level Hysteresis TA = +125°C TA = -55°C VIN decreasing (MAX8215 only), TA = +25°C +12V Trip Level MAX821_C TA = TMIN to TMAX MAX821_E MAX821_M VIN decreasing (MAX8216 only), TA = +25°C +15V Trip Level MAX821_C TA = TMIN t.