_______________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 on-
chip. All comparators have open-drain outputs. These
devices consume 250µA max supply current over tem-
perature.
________________________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
____________________________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
______________Ordering Information
*Dice are tested at TA = +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.
MAX8215/MAX8216
±5V, ±12V (±15V) Dedicated
Microprocessor Voltage Monitors
________________________________________________________________ Maxim Integrated Products 1
1
2
3
4
14
13
12
11
VDD
OUT1
OUT2
OUT3
-5V
+5V
GND
VREF
DIP/SO
TOP VIEW
MAX8215
MAX8216
5
6
7
10
9
8
OUT4
DOUT
PGND
DIN
-12V (-15V)
+12V (+15V)
( ) ARE FOR MAX8216 ONLY.
__________________Pin Configuration
+5V
OUT1
+5V
VDD
PGNDGND
0.1µF
-5V
OUT2
OUT3
+12V (+15V)
OUT4
-12V (-15V)
DOUT
DIN
1.24V REFERENCE VREF
( ) ARE FOR
MAX8216 ONLY.
MAX8215
MAX8216
__________Typical Operating Circuit
19-0169; Rev 1; 11/05
PART TEMP RANGE PIN-PACKAGE
MAX8215CPD 0°C to +70°C 14 Plastic DIP
MAX8215CSD 0°C to +70°C 14 SO
MAX8215C/D 0°C to +70°C Dice*
MAX8215EPD -40°C to +85°C 14 Plastic DIP
MAX8215ESD -40°C to +85°C 14 SO
MAX8215EJD -40°C to +85°C 14 CERDIP
MAX8215MPD -55°C to +125°C 14 Plastic DIP
14 CERDIP-55°C to +125°CMAX8215MJD
Ordering Information continued on last page.
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.
MAX8215/MAX8216
±5V, ±12V (±15V) Dedicated
Microprocessor Voltage Monitors
2_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VDD = +5V, GND = 0V, TA= TMIN to TMAX, unless otherwise noted.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
PARAMETER MIN TYP MAX UNITS
Load Current 40 µA
-2.5 2.5
-1.75 1.75
IDD Supply Current 137 250 µA
Load Regulation 3.3 µV/µA
Line Regulation 0.01 %/V
Output Tempco 15 ppm/°C
2.7 11
VDD Supply Voltage Range 2.85 11 V
4.521 4.579 4.636
4.500 4.657
4.500 4.657
4.464 4.693
CONDITIONS
TA= TMIN to TMAX
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
MAX821_C
MAX821_E
MAX821_M
-1.00 1.00
MAX821_E/M
VIN decreasing, TA= +25°C
MAX821_C
MAX821_E
MAX821_M
4.636 4.749
1.25
VIN increasing
TA= +25°C
TA= +125°C 1.75
0.8
V
TA= -55°C
10.431 10.590 10.749
10.404 10.775
VIN decreasing (MAX8215 only), TA= +25°C
MAX821_C
MAX821_E 10.378 10.802
10.325 10.855MAX821_M
V
TA= TMIN to TMAX
+12V Trip Level
%+5V Trip Level Hysteresis
Output Voltage Tolerance
Referred to 1.24V %
-1.5 1.5
TA= +25°C
MAX821_C
TA= TMIN to TMAX
+5V Trip Level
13.036 13.235 13.434
13.003 13.467
VIN decreasing (MAX8216 only), TA= +25°C
MAX821_C
MAX821_E 12.970 13.500
12.904 13.566MAX821_M
V
TA= TMIN to TMAX
+15V Trip Level
POWER SUPPLY
REFERENCE OUTPUT
COMPARATOR INPUTS
MAX8215/MAX8216
±5V, ±12V (±15V) Dedicated
Microprocessor Voltage Monitors
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(VDD = +5V, GND = 0V, TA= TMIN to TMAX, unless otherwise noted.)
PARAMETER MIN TYP MAX UNITS
MAX821_C
MAX821_E -10.378 -10.802
-10.325 -10.855
1.25 2.00
Threshold Hysteresis
1.60 2.25
%
MAX821_M
130
168
CONDITIONS
TA= TMIN to TMAX
+15V trip level
-5V trip level
-12V Trip Level V
I VIN I decreasing, TA= +25°C
-13.003 -13.467
-15V Trip Level
I VIN I decreasing (MAX8216 only), TA= +25°C
V
MAX821_C
MAX821_E -12.970 -13.500
-12.904 -13.566MAX821_M
TA= TMIN to TMAX
-4.348 -4.415 -4.482
-4.337 -4.493
-5V Trip Level
I VIN I decreasing, TA= +25°C
V
MAX821_C
MAX821_E -4.326 -4.500
-4.304 -4.525MAX821_M
TA= TMIN to TMAX
160
Input Resistance
190
kΩTA= +25°C
-2.00 2.00
-1.75 1.75
-1.5 0 1.5VIN decreasing, TA= +25°C
+5V input to GND
-5V input to REF
-12V/-15V input to REF
Trip Level with Respect to 1.24V
-2.50 2.50
%
Threshold Hysteresis 1.25 2.00 %TA= +25°C
Input Bias Current 210nATA= +25°C
MAX821_C
MAX821_E
MAX821_M
-10.431 -10.590 -10.749
-13.036 -13.235 -13.434
-10.404 -10.776
+12V/+15V input to GND
1.25 2.00+12V trip level
1.50 2.25-12V trip level
1.50 2.25-15V trip level
Hysteresis Tempco, ±15, ±12, -5 %/°C0.005
TA= +25°C
VOL; VDD = 5V, ISINK = 2mA 0.11 0.3
VDD = 1.5V, ISINK = 0.2mA 0.04 0.3Voltage Output Low
VDD = 1.0V, ISINK = 0.1mA 0.10
V
Leakage Current Off State 1.0 µA
Comparator Response Time
(All Comparators) 30mV overdrive (Note 1) 20 µs
Note 1: To overdrive the +5V/+12V/+15V comparators with a 30mV overdrive voltage, use the formula 30mV
to determine the required input voltage. VTHR is the threshold of the particular overdriven comparator. To overdrive the
-5V/-12V/-15V comparators use 30mV .
(
V
THR
1.24 )
IVTHR
1.24 I
[1+ ]
AUXILIARY COMPARATOR INPUT
MAX8215/MAX8216
±5V, ±12V (±15V) Dedicated
Microprocessor Voltage Monitors
4_______________________________________________________________________________________
__________________________________________Typical Operating Characteristics
(TA=+25°C, unless otherwise noted.)
0
-60
COMPARATOR INPUT BIAS CURRENT
vs. TEMPERATURE
MAX8215-TOC1
TEMPERATURE (C°)
INPUT BIAS CURRENT (nA)
-40 -20 0 20 40 60 80 100 120 140
0.5
1
1.5
2
2.5
3
3.5
4
VDD = 5V
0
2
COMPARATOR INPUT BIAS CURRENT
vs. SUPPLY VOLTAGE
MAX8215-TOC2
SUPPLY VOLTAGE (V)
INPUT BIAS CUREENT (nA)
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
2.5 3 3.5 4 4.5 5
TA = +25°C
0
0
OUTPUT VOLTAGE LOW
vs. OUTPUT SINK CURRENT
MAX8215-TOC3
VOL (V)
OUTPUT SINK CURRENT (mA)
2.0 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8
0.5
5
1.5
10
20
25
30
35
2
TA = +25°C
TA = +125°C
TA = -55°C
2
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (µA)
345 7891011
125
12
130
135
140
145
150
155
MAX8215-TOC4
TA = +125°C
6
TA = +25°C
TA = -55°C
-5V PIN = -5V
-12V PIN = -5V
+5V PIN = +5V
+12V PIN = +12V
1.23
0
REFERENCE VOLTAGE
vs. REFERENCE SOURCE CURRENT
MAX8215-TOC5
REFERENCE SOURCE CURRENT (µA)
VREF,REFERENCE VOLTAGE (V)
1.231
1.232
1.233
1.234
1.235
1.236
1.237
1.238
50 100 150 200 250 300
TA = +125°C
TA = -55°C
TA = +25°C
VDD = 5V
1
REFERENCE VOLTAGE
vs. SUPPLY VOLTAGE
SUPPLY VOLTAGE (V)
VREF, REFERENCE VOLTAGE (V)
2345678910
0.95
11
1
1.05
1.1
1.15
1.2
1.25
MAX8215-TOC6
TA = -55°C
NOTE: -55°C IS WORST CASE
CONDITION FOR REFERENCE
REGULATION AT LOW VOLTAGES.
-55
VREF OUTPUT VOLTAGE
vs. TEMPERATURE
TEMPERATURE (°C)
VREF, REFERENCE VOLTAGE (V)
-35 -15 5 45 65 85 105 125
1.232
1.233
1.234
1.235
1.236
1.237
1.238
MAX8215-TOC7
VDD = 5V
25
MAX8215/MAX8216
±5V, ±12V (±15V) Dedicated
Microprocessor Voltage Monitors
_______________________________________________________________________________________ 5
+5V RESPONSE WITH
±100mV INPUT EXCURSION AROUND TRIP LEVEL
8215/16 SCOPE1
+5V COMP
+5V PIN
OUT1
_____________________________Typical Operating Characteristics (continued)
(TA= +25°C, unless otherwise noted.)
-5V RESPONSE WITH
±100mV INPUT EXCURSION AROUND TRIP LEVEL
8215/16 SCOPE2
-5V COMP
+5V PIN
OUT1
DOUT OUTPUT VOLTAGE vs. SUPPLY VOLTAGE
R1 = 15kΩ, R2 = 40k (see Figure 4)
8215/16 SCOPE3
SUPPLY
VOLTAGE
DOUT
OUTPUT
VOLTAGE
DIN COMPARATOR RESPONSE
WITH 30mV OVERDRIVE
8215/16 SCOPE4
COMP
OUTPUT
COMP
INPUT
DIN COMPARATOR RESPONSE
WITH 50mV OVERDRIVE
8215/16 SCOPE5
COMP
OUTPUT
COMP
INPUT
DIN COMPARATOR RESPONSE
WITH 100mV OVERDRIVE
8215/16 SCOPE6
COMP
OUTPUT
COMP
INPUT
MAX8215/MAX8216
±5V, ±12V (±15V) Dedicated
Microprocessor Voltage Monitors
6_______________________________________________________________________________________
_______________Detailed Description
The MAX8215/MAX8216 contain 5 comparators (Figure
1). The comparator with its output labeled DOUT is dis-
tinguished from the others in that it can be set up to mon-
itor various voltages; each of the other 4 comparators
monitors a specific voltage. The DOUT comparator’s
noninverting input is available external to the device; its
inverting input is tied internally to the reference.
The MAX8215/MAX8216 comparators have open-drain
outputs. Thus, these devices require pull-up resistors
for proper operation. See the Typical Operating Circuit.
Open-drain outputs are useful for driving LEDs and for
situations in which the comparator outputs must be
connected together (i.e., wire-ORed).
Bypass VDD with 0.1µF connected to PGND.
__________Applications Information
Hysteresis
When the voltage on a typical comparator’s input is
at or near the voltage on the other input, ambient
noise generally causes the comparator output to
oscillate. The most common way to eliminate this
problem is by using hysteresis. When the two com-
parator input voltages are equal, hysteresis causes
one comparator input voltage to move quickly past
the other, thus taking the input out of the region
where oscillation occurs. Standard comparators
need external resistors for hysteresis; these resistors
are not necessary when using any of the MAX8215
and MAX8216 comparators because hysteresis is
built in.
NAME FUNCTION
1VREF Output of the internal 1.24V reference
2GND Ground. Connect to PGND.
3 +5V Input for monitoring +5V supply
PIN
4 -5V Input for monitoring -5V supply
5+12V
(+15V)
MAX8215 input for monitoring +12V
(MAX8216 input for monitoring +15V)
6-12V
(-15V)
MAX8215 input for monitoring -12V
(MAX8216 input for monitoring -15V)
7DIN
Noninverting input of the auxiliary
comparator. Its inverting input is tied
to the internal reference.
8PGND
9DOUT Output of the auxiliary comparator
_____________________Pin Description
Power-supply ground. Bypass VDD
to this pin.
Outputs of the four dedicated com-
parators
14 VDD
10, 11,
12, 13
OUT4,
OUT3,
OUT2,
OUT1
Power-supply positive voltage input.
Bypass to PGND.
+5V
OUT1
-5V
OUT2
OUT3
+12V (+15V)
OUT4
-12V (-15V)
DOUT
DIN
1.24V REFERENCE VREF
( ) ARE FOR
MAX8216 ONLY.
MAX8215
MAX8216
VDD
PGND
GND
Figure 1. Block Diagram
MAX8215/MAX8216
±5V, ±12V (±15V) Dedicated
Microprocessor Voltage Monitors
_______________________________________________________________________________________ 7
Adding hysteresis to a comparator creates two trip
points–one for the input voltage rising and one for the
input voltage falling. When the voltage at the
MAX8215/MAX8216 auxiliary comparator’s (noninvert-
ing) input falls, the threshold at which the comparator
switches equals the reference voltage connected to the
comparator’s inverting input. However, when the volt-
age at the noninverting input rises, the threshold
equals the reference voltage plus the amount of hys-
teresis voltage built into the part. The trip point is
somewhat more accurate when the hysteresis voltage
is not part of the threshold voltage (i.e., when the input
voltage is falling) because the tolerance of the hystere-
sis specification adds to the tolerance of the trip point.
Overvoltage and Undervoltage
Detection Circuits
Figure 2 shows connection of the auxiliary comparator
as either an undervoltage or overvoltage comparator.
Hysteresis makes this circuit more accurate when the
input voltage is dropping as opposed to rising. Figure
3 illustrates the comparator’s operation. The input volt-
age’s direction determines at which of two trip points
the comparator switches. Thus, the diagram includes
arrows that indicate whether the input voltage is rising
or falling. The formulas are provided for determining
trip-point voltages for specified resistors and for ease
in calculating appropriate resistor ratios for particular
trip points.
The MAX8215/MAX8216 comparator outputs correctly
display a low level down to 0.8V supply voltage. This is
useful in undervoltage applications where the monitored
power supply is also the supply connected to the VDD
pin. See the section Monitoring the Supply Voltage.
9
RB
1.24V REFERENCE
DOUT
MAX8215
MAX8216
VDD
DIN
+VS
RA7
180k
VTRIP =(RA + RB) (VREF)
RB
Figure 2. Undervoltage/Overvoltage Comparator Using the
Auxiliary Comparator
VTRIP2
VTRIP1
GND
VDD
INPUT VOLTAGE
(VS)
OUTPUT
VOLTAGE
GND
VHYST
1 + RA
RB
()
TO DETERMINE THE TRIP VOLTAGES
FROM PARTICULAR RESISTOR
VALUES:
TO CALCULATE THE REQUIRED
RESISTOR RATIOS FOR PARTICULAR
TRIP VOLTAGES:
VTRIP1 = VREF
1 + RA
RB
()
VTRIP2 = (VREF + VHYST)
1 + RA
RB
()
RA = VTRIP1 - 1
RB VREF
RA = VTRIP2 - 1
RB VREF + VHYST
VHYST = 16mV TYP
Figure 3. Undervoltage/Overvoltage Detector Waveforms and
Formulas
MAX8215
MAX8216
14
VDD
8
PGND
0.1µF
OUT1
UNDERVOLTAGE
DOUT
7
13
9
OVERVOLTAGE
3
2
+VS
R1
GND
+5V
DIN
R2 +5V COMPARATOR IS ACTUATED WHEN VS FALLS TO THE
COMPARATOR'S SPECIFIED TRIP LEVEL. THE AUXILIARY
COMPARATOR OUTPUT IS TRIPPED WHEN VS > (R1 + R2) VREF
R2
Figure 4. Monitoring Supply Powering the MAX8215/MAX8216
with Undervoltage and Overvoltage Comparators
MAX8215/MAX8216
±5V, ±12V (±15V) Dedicated
Microprocessor Voltage Monitors
8_______________________________________________________________________________________
Monitoring the Supply Voltage
The supply voltage to these devices can also be moni-
tored by the 5V dedicated comparator and the auxiliary
comparator. Figure 4 shows a circuit that monitors the
voltage connected at VDD for both overvoltage and
undervoltage conditions. The +5V comparator checks
for undervoltage conditions while the auxiliary compara-
tor monitors overvoltage conditions. In general, no extra
supply bypassing circuitry (other than the normally rec-
ommended 0.1µF capacitor) is required when perform-
ing this function. However, using resistor values higher
than 100kΩat the auxiliary comparator’s input requires
attention to eliminate potential oscillations. Also, partic-
ularly low pull-up resistor values on DOUT contribute to
the likelihood of the auxiliary comparator’s oscillation.
See the section Eliminating Output Oscillation.
Microprocessor Reset
____________Circuit with Time Delay
It is often necessary to reset a microprocessor (µP) when
its supply voltage drops below a certain level. Figure 5’s
circuit generates a low output when the monitored volt-
age drops below the 5V monitor’s threshold. Additionally,
this output remains low for 200ms after the supply voltage
goes above the threshold. µP reset circuits typically
include this feature because it gives the µP time to be
fully reset after power has been restored, and allows any
capacitors in associated circuitry time to charge. Figure
6 shows this circuit’s waveforms and formulas.
Figure 7 shows Figure 5’s µP reset circuit, but with the
monitored supply also powering the MAX8215. Figure
6’s waveforms and equations also apply to this circuit.
The MAX8215/MAX8216 comparator outputs correctly
display a low level down to a 0.8V typical supply voltage.
Unused Inputs
When the uncommitted comparator within the
MAX8215/MAX8216 is not used, tie the unused input to
either the positive supply or ground. This prevents noise
generation due to the comparator output switching from
one logic state to another (due to noise at the input).
Output Pull-Up Resistors
Pull-up resistors are required at the outputs of each
comparator. Resistor values should not be less than
2.7kΩif the outputs are pulled up to VDD. In general,
save power by using higher values, e.g., ≥100kΩ. Use
of higher-value resistors also minimizes the possibility
of oscillations due to a spurious feedback (see the sec-
tion Eliminating Output Oscillation).
Input Voltage Limitation
If the voltages at the various inputs are kept within the
absolute maximum ratings, the device is not damaged.
However, high input voltages within this range can
cause the reference voltage to move. To prevent the
reference voltage from changing, limit the +5V input to
+17V; the -5V and -15V inputs to +1V; and the +15V
input to +60V. Negative input voltages within the
MAX8215
MAX8216
14
VDD
8
PGND
0.1µF
OUT1
DOUT
7
13
9RESET
3
2
+VS
GND
+5V
DIN
+5V
680k
680k
1µF
Figure 5. Microprocessor Reset Circuit with 200ms Time Delay
VTRIP2
VTRIP1
GND
VDD
INPUT VOLTAGE
(VS)
OUTPUT
VOLTAGE
(OUT1)
GND
tDLY = -RC In
1 - VREF
VCC
()
VDD
GND
tDLY
OUTPUT
VOLTAGE
(DOUT)
VTRIP1 IS FOR VS DECREASING;
VTRIP2 IS FOR VS INCREASING.
NOTE: VTH IS THE VOLTAGE AT THE INVERTING PIN OF THE TWO COMPARATORS.
IN THIS CASE, IT IS EQUAL TO THE INTERNAL REFERENCE VOLTAGE.
Figure 6. Microprocessor Reset with Time Delay Waveforms
MAX8215/MAX8216
±5V, ±12V (±15V) Dedicated
Microprocessor Voltage Monitors
_______________________________________________________________________________________ 9
absolute maximum ratings have no effect on the refer-
ence. Within the absolute maximum ratings, the DIN
input has no effect on the reference.
Power-Supply Bypassing and Grounding
In high-noise environments where the voltage connected
to VDD may change abruptly, the reference voltage may
“bounce,” causing false comparator outputs. Eliminate
this problem using Figure 8’s RC bypass network.
Although bypassing the reference may appear to help,
Figure 8’s solution is recommended; bypassing the ref-
erence reduces its voltage change, but doing so caus-
es a time delay prior to the reference voltage returning
to its correct level.
Eliminating Output Oscillation when
Using the Auxiliary Comparator
Although hysteresis is built into the auxiliary comparator,
output oscillation problems are still possible. Oscillation
can occur when a comparator’s output couples back to
its inverting input through stray board capacitance.
Make sure the board trace leading from the comparator
output does not pass near its inverting input (or vice
versa). Also, reducing the resistance connected to DIN
reduces its susceptibility to picking up output signals. In
most cases, using input resistor values on the order of
100kΩcreates no problem. Since using lower resistor
values increases the supply current, another approach
is to bypass the input resistors as shown in Figure 9,
although this slows the circuit’s response. When much
larger valued input resistors are used, high valued resis-
tors on the output should be used.
When DOUT is required to sink larger currents (i.e.,
when smaller pull-up resistor values are used), oscilla-
tion problems are more likely to occur. To minimize
power consumption and to optimize stability, use the
largest value pull-up resistor feasible for the output
drive required. When lower pull-up resistor values are
used, lower values for the resistors connected to the
inputs can help alleviate oscillation problems.
MAX8215
MAX8216
14
VDD
8
PGND
0.1µF
OUT1
DOUT
7
13
9RESET
3
2
+VS
GND
+5V
DIN
+5V
680k
680k
1µF
1k
Figure 7. Microprocessor Reset Circuit Monitoring Its Own
Supply Voltage
MAX8215
MAX8216
13
OUT1
14
VDD
V+
1k
0.1µF
Figure 8. Alternate Bypass Scheme
MAX8215
MAX8216 9
DOUT
7DIN
VIN
Figure 9. Alternative Means for Reducing Impedance Level
Seen at DIN
MAX8215/MAX8216
±5V, ±12V (±15V) Dedicated
Microprocessor Voltage Monitors
10 ______________________________________________________________________________________
PART TEMP. RANGE PIN-PACKAGE
MAX8216CPD 0°C to +70°C 14 Plastic DIP
MAX8216CSD 0°C to +70°C 14 SO
MAX8216C/D 0°C to +70°C Dice*
MAX8216ESD -40°C to +85°C 14 SO
MAX8216EPD -40°C to +85°C 14 Plastic DIP
MAX8216MJD -55°C to +125°C 14 CERDIP
MAX8216MPD -55°C to +125°C 14 Plastic DIP
MAX8216EJD -40°C to +85°C 14 CERDIP
_Ordering Information (continued)
* Dice are tested at TA= +25°C.
___________________Chip Topography
OUT4
OUT3
+5
-5
+12V
(+15V)
-12V
(-15V)
GND VREF VDD OUT1
DOUT
PGND
DIN
0.076"
(1.930mm)
0.066"
(1.676mm)
OUT2
( ) ARE FOR MAX8216 ONLY.
TRANSISTOR COUNT: 275;
SUBSTRATE CONNECTED TO VDD.
MAX8215/MAX8216
±5V, ±12V (±15V) Dedicated
Microprocessor Voltage Monitors
______________________________________________________________________________________ 11
________________________________________________________Package Information
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
12 __________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600
©2005 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products, Inc.
MAX8215/MAX8216
±5V, ±12V (±15V) Dedicated
Microprocessor Voltage Monitors
___________________________________________Package Information (continued)
L
DIM
A
A1
B
C
D
E
e
H
h
L
α
MIN
0.053
0.004
0.014
0.007
0.337
0.150
0.228
0.010
0.016
0˚
MAX
0.069
0.010
0.019
0.010
0.344
0.157
0.244
0.020
0.050
8˚
MIN
1.35
0.10
0.35
0.19
8.55
3.80
5.80
0.25
0.40
0˚
MAX
1.75
0.25
0.49
0.25
8.75
4.00
6.20
0.50
1.27
8˚
INCHES MILLIMETERS
α
14-PIN PLASTIC
SMALL-OUTLINE
PACKAGE
HE
D
e
A
A1 C
h x 45˚
0.127mm
0.004in.
B
1.27 BSC0.050 BSC
21-331A