MAXIM MAX8215EPD

19-0169; Rev 1; 11/05
±5V, ±12V (±15V) Dedicated
Microprocessor Voltage Monitors
____________________________Features
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.
♦ 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
________________________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
__________Typical Operating Circuit
0.1µF
+5V
GND PGND
+5V
VDD
OUT1
-5V
MAX8215
MAX8216
OUT2
______________Ordering Information
PART
TEMP RANGE
MAX8215CPD
0°C to +70°C
14 Plastic DIP
PIN-PACKAGE
MAX8215CSD
MAX8215C/D
MAX8215EPD
MAX8215ESD
MAX8215EJD
MAX8215MPD
MAX8215MJD
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
14 SO
Dice*
14 Plastic DIP
14 SO
14 CERDIP
14 Plastic DIP
14 CERDIP
*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.
Ordering Information continued on last page.
__________________Pin Configuration
+12V (+15V)
TOP VIEW
OUT3
-12V (-15V)
OUT4
VREF
1
GND
2
+5V 3
14 VDD
13 OUT1
MAX8215
MAX8216
-5V 4
DOUT
DIN
12 OUT2
11 OUT3
+12V (+15V)
5
10 OUT4
-12V (-15V)
6
9
DOUT
DIN 7
8
PGND
DIP/SO
( ) ARE FOR
MAX8216 ONLY.
1.24V REFERENCE
VREF
( ) ARE FOR MAX8216 ONLY.
________________________________________________________________ Maxim Integrated Products
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.
1
MAX8215/MAX8216
_______________General Description
MAX8215/MAX8216
±5V, ±12V (±15V) Dedicated
Microprocessor Voltage Monitors
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 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.
ELECTRICAL CHARACTERISTICS
(VDD = +5V, GND = 0V, TA = TMIN to TMAX, unless otherwise noted.)
PARAMETER
POWER SUPPLY
CONDITIONS
VDD Supply Voltage Range
MIN
TYP
MAX
MAX821_C
2.7
11
MAX821_E/M
2.85
11
IDD Supply Current
137
250
UNITS
V
µA
REFERENCE OUTPUT
TA = +25°C
Output Voltage Tolerance
Referred to 1.24V
TA = TMIN to TMAX
-1.00
1.00
MAX821_C
-1.5
1.5
MAX821_E
-1.75
1.75
MAX821_M
-2.5
2.5
Load Current
40
%
µA
Load Regulation
3.3
Line Regulation
0.01
%/V
15
ppm/°C
Output Tempco
µV/µA
COMPARATOR INPUTS
VIN decreasing, TA = +25°C
+5V Trip Level
TA = TMIN to TMAX
4.521
4.500
4.657
MAX821_E
4.500
4.657
MAX821_M
4.464
4.693
4.636
TA = +25°C
1.25
TA = +125°C
1.75
TA = -55°C
0.8
VIN decreasing (MAX8215 only), TA = +25°C
+12V Trip Level
TA = TMIN to TMAX
2
TA = TMIN to TMAX
10.431
10.590
%
10.749
10.404
10.775
MAX821_E
10.378
10.802
MAX821_M
10.325
10.855
13.036
13.235
V
13.434
MAX821_C
13.003
13.467
MAX821_E
12.970
13.500
MAX821_M
12.904
13.566
_______________________________________________________________________________________
V
4.749
MAX821_C
VIN decreasing (MAX8216 only), TA = +25°C
+15V Trip Level
4.636
MAX821_C
VIN increasing
+5V Trip Level Hysteresis
4.579
V
±5V, ±12V (±15V) Dedicated
Microprocessor Voltage Monitors
MAX8215/MAX8216
ELECTRICAL CHARACTERISTICS (continued)
(VDD = +5V, GND = 0V, TA = TMIN to TMAX, unless otherwise noted.)
CONDITIONS
PARAMETER
I VIN I decreasing, TA = +25°C
MAX821_C
MAX821_E
TA = TMIN to TMAX
-12V Trip Level
MAX821_M
I VIN I decreasing (MAX8216 only), TA = +25°C
-15V Trip Level
-10.325
MAX821_E
-12.970
-13.500
MAX821_M
I VIN I decreasing, TA = +25°C
MAX821_C
-12.904
-4.348
-4.337
MAX821_E
-4.326
-4.500
MAX821_M
-4.304
-4.525
TA = +25°C
V
-10.855
-13.467
TA = +25°C
UNITS
-13.036 -13.235 -13.434
-4.415
-13.566
-4.482
-4.493
+15V trip level
1.25
2.00
+12V trip level
1.25
2.00
-15V trip level
1.50
2.25
-12V trip level
1.50
2.25
-5V trip level
1.60
2.25
+5V input to GND
+12V/+15V input to GND
-5V input to REF
0.005
130
168
160
Hysteresis Tempco, ±15, ±12, -5
Input Resistance
MAX
-13.003
TA = TMIN to TMAX
Threshold Hysteresis
TYP
MAX821_C
TA = TMIN to TMAX
-5V Trip Level
MIN
-10.431 -10.590 -10.749
-10.404
-10.776
-10.378
-10.802
-12V/-15V input to REF
V
V
%
%/°C
kΩ
190
AUXILIARY COMPARATOR INPUT
Trip Level with Respect to 1.24V
VIN decreasing, TA = +25°C
MAX821_C
MAX821_E
MAX821_M
Threshold Hysteresis
TA = +25°C
1.25
2.00
%
Input Bias Current
TA = +25°C
2
10
nA
VOL; VDD = 5V, ISINK = 2mA
0.11
0.3
VDD = 1.5V, ISINK = 0.2mA
0.04
0.3
V
VDD = 1.0V, ISINK = 0.1mA
0.10
1.0
µA
Voltage Output Low
Leakage Current
Off State
Comparator Response Time
(All Comparators)
30mV overdrive (Note 1)
-1.5
-1.75
-2.00
-2.50
0
1.5
1.75
2.00
2.50
20
%
µs
VTHR
Note 1: To overdrive the +5V/+12V/+15V comparators with a 30mV overdrive voltage, use the formula 30mV ( 1.24 )
to determine the required input voltage. VTHR is the threshold of the particular overdriven comparator. To overdrive the
-5V/-12V/-15V comparators use 30mV [1+ I VTHR I ] .
1.24
_______________________________________________________________________________________
3
__________________________________________Typical Operating Characteristics
(TA=+25°C, unless otherwise noted.)
COMPARATOR INPUT BIAS CURRENT
vs. SUPPLY VOLTAGE
2
1.5
1
1.2
1
0.8
0.6
0.4
0.5
0.2
0
0
-60 -40 -20 0
TA = +125°C
1.5
5
0.5
2.5
3
3.5
4
4.5
5
0 2.0 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
REFERENCE VOLTAGE
vs. REFERENCE SOURCE CURRENT
REFERENCE VOLTAGE
vs. SUPPLY VOLTAGE
TA = +125°C
135
-5V PIN = -5V
-12V PIN = -5V
+5V PIN = +5V
+12V PIN = +12V
130
125
5
6
7
8
9
TA = +125°C
1.237
1.236
TA = +25°C
1.235
VDD = 5V
1.234
1.233
TA = -55°C
1.232
1.231
1.23
50
100
150
200
250
300
REFERENCE SOURCE CURRENT (µA)
SUPPLY VOLTAGE (V)
TA = -55°C
1.2
1.15
1.1
1.05
NOTE: -55°C IS WORST CASE
CONDITION FOR REFERENCE
REGULATION AT LOW VOLTAGES.
1
0.95
0
10 11 12
1.25
VREF, REFERENCE VOLTAGE (V)
140
VREF,REFERENCE VOLTAGE (V)
TA = -55°C
145
1.238
MAX8215-TOC5
VOL (V)
150
4
10
SUPPLY VOLTAGE (V)
TA = +25°C
3
20
TEMPERATURE (C°)
155
2
TA = +25°C
25
0
2
20 40 60 80 100 120 140
TA = -55°C
30
1
2
3
4 5 6 7 8 9
SUPPLY VOLTAGE (V)
VREF OUTPUT VOLTAGE
vs. TEMPERATURE
MAX8215-TOC7
VREF, REFERENCE VOLTAGE (V)
1.238
1.237
VDD = 5V
1.236
1.235
1.234
1.233
1.232
-55 -35 -15
5
25
45
65 85 105 125
TEMPERATURE (°C)
4
MAX8215-TOC6
2.5
TA = +25°C
35
MAX8215-TOC3
1.4
INPUT BIAS CUREENT (nA)
3
MAX8215-TOC4
INPUT BIAS CURRENT (nA)
1.6
MAX8215-TOC2
VDD = 5V
MAX8215-TOC1
4
3.5
OUTPUT VOLTAGE LOW
vs. OUTPUT SINK CURRENT
OUTPUT SINK CURRENT (mA)
COMPARATOR INPUT BIAS CURRENT
vs. TEMPERATURE
SUPPLY CURRENT (µA)
MAX8215/MAX8216
±5V, ±12V (±15V) Dedicated
Microprocessor Voltage Monitors
_______________________________________________________________________________________
10 11
±5V, ±12V (±15V) Dedicated
Microprocessor Voltage Monitors
(TA = +25°C, unless otherwise noted.)
+5V PIN
8215/16 SCOPE2
-5V RESPONSE WITH
±100mV INPUT EXCURSION AROUND TRIP LEVEL
8215/16 SCOPE1
+5V RESPONSE WITH
±100mV INPUT EXCURSION AROUND TRIP LEVEL
+5V PIN
OUT1
OUT1
+5V COMP
-5V COMP
SUPPLY
VOLTAGE
8215/16 SCOPE4
DIN COMPARATOR RESPONSE
WITH 30mV OVERDRIVE
8215/16 SCOPE3
DOUT OUTPUT VOLTAGE vs. SUPPLY VOLTAGE
R1 = 15kΩ, R2 = 40k (see Figure 4)
COMP
OUTPUT
COMP
INPUT
DOUT
OUTPUT
VOLTAGE
DIN COMPARATOR RESPONSE
WITH 50mV OVERDRIVE
COMP
OUTPUT
COMP
INPUT
8215/16 SCOPE6
8215/16 SCOPE5
DIN COMPARATOR RESPONSE
WITH 100mV OVERDRIVE
COMP
OUTPUT
COMP
INPUT
_______________________________________________________________________________________
5
MAX8215/MAX8216
_____________________________Typical Operating Characteristics (continued)
MAX8215/MAX8216
±5V, ±12V (±15V) Dedicated
Microprocessor Voltage Monitors
_____________________Pin Description
+5V
PIN
NAME
FUNCTION
1
VREF
Output of the internal 1.24V reference
2
GND
Ground. Connect to PGND.
3
+5V
Input for monitoring +5V supply
4
-5V
Input for monitoring -5V supply
5
+12V
(+15V)
MAX8215 input for monitoring +12V
(MAX8216 input for monitoring +15V)
-12V
(-15V)
MAX8215 input for monitoring -12V
(MAX8216 input for monitoring -15V)
6
OUT1
-5V
MAX8215
MAX8216
+12V (+15V)
OUT3
-12V (-15V)
Noninverting input of the auxiliary
comparator. Its inverting input is tied
to the internal reference.
Power-supply ground. Bypass VDD
to this pin.
7
DIN
8
PGND
9
DOUT
Output of the auxiliary comparator
10, 11,
12, 13
OUT4,
OUT3,
OUT2,
OUT1
Outputs of the four dedicated comparators
14
VDD
Power-supply positive voltage input.
Bypass to PGND.
OUT2
OUT4
DOUT
DIN
1.24V REFERENCE
( ) ARE FOR
MAX8216 ONLY.
VREF
VDD
PGND
GND
Figure 1. Block Diagram
_______________Detailed Description
__________Applications Information
The MAX8215/MAX8216 contain 5 comparators (Figure
1). The comparator with its output labeled DOUT is distinguished from the others in that it can be set up to monitor 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.
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 comparator 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.
6
Hysteresis
_______________________________________________________________________________________
±5V, ±12V (±15V) Dedicated
Microprocessor Voltage Monitors
MAX8215/MAX8216
VTRIP2
VDD
MAX8215
MAX8216
RA
7 DIN
(
INPUT VOLTAGE
(VS)
VTRIP1
180k
DOUT 9
+VS
VHYST 1 +
RA
RB
)
GND
OUTPUT
VOLTAGE
VDD
RB
GND
1.24V REFERENCE
(
VTRIP = RA + RB
RB
)
TO DETERMINE THE TRIP VOLTAGES
FROM PARTICULAR RESISTOR
VALUES:
RA
VTRIP1 = VREF 1 + RB
RA
VTRIP2 = (VREF + VHYST) 1 +
RB
VHYST = 16mV TYP
)
(
(VREF)
Figure 2. Undervoltage/Overvoltage Comparator Using the
Auxiliary Comparator
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 (noninverting) input falls, the threshold at which the comparator
switches equals the reference voltage connected to the
comparator’s inverting input. However, when the voltage at the noninverting input rises, the threshold
equals the reference voltage plus the amount of hysteresis 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 hysteresis specification adds to the tolerance of the trip point.
(
)
Figure 3. Undervoltage/Overvoltage Detector Waveforms and
Formulas
0.1µF
8
2 GND
3
+VS
+5V
PGND
MAX8215
MAX8216
VDD
OUT1
14
13
UNDERVOLTAGE
R1
7
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 voltage’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.
TO CALCULATE THE REQUIRED
RESISTOR RATIOS FOR PARTICULAR
TRIP VOLTAGES:
RA VTRIP1
RB = VREF - 1
RA
VTRIP2
RB = VREF + VHYST - 1
R2
DIN
DOUT
9
OVERVOLTAGE
+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
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.
_______________________________________________________________________________________
7
MAX8215/MAX8216
±5V, ±12V (±15V) Dedicated
Microprocessor Voltage Monitors
+5V
VTRIP2
INPUT VOLTAGE
(VS) VTRIP1
0.1µF
8
2 GND
+VS
3
7
+5V
DIN
PGND
MAX8215
MAX8216
VDD
OUT1
DOUT
14
680k
680k
GND
OUTPUT
VOLTAGE
(OUT1)
13
9
RESET
OUTPUT
VOLTAGE
(DOUT)
VDD
tDLY
GND
VDD
GND
VTRIP1 IS FOR VS DECREASING;
VTRIP2 IS FOR VS INCREASING.
VREF
tDLY = -RC In 1 - V
CC
(
)
1µF
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 5. Microprocessor Reset Circuit with 200ms Time Delay
Monitoring the Supply Voltage
The supply voltage to these devices can also be monitored by the 5V dedicated comparator and the auxiliary
comparator. Figure 4 shows a circuit that monitors the
voltage connected at V DD for both overvoltage and
undervoltage conditions. The +5V comparator checks
for undervoltage conditions while the auxiliary comparator monitors overvoltage conditions. In general, no extra
supply bypassing circuitry (other than the normally recommended 0.1µF capacitor) is required when performing this function. However, using resistor values higher
than 100kΩ at the auxiliary comparator’s input requires
attention to eliminate potential oscillations. Also, particularly 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 voltage 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.
8
Figure 6. Microprocessor Reset with Time Delay Waveforms
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
2.7kΩ if 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 section 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
_______________________________________________________________________________________
±5V, ±12V (±15V) Dedicated
Microprocessor Voltage Monitors
MAX8215/MAX8216
V+
+5V
1k
1k
0.1µF
14
0.1µF
VDD
OUT1
8
2 GND
PGND
VDD
14
680k
13
680k
MAX8215
MAX8216
+VS
3
7
+5V
DIN
MAX8215
MAX8216
OUT1
DOUT
13
9
RESET
Figure 8. Alternate Bypass Scheme
1µF
Figure 7. Microprocessor Reset Circuit Monitoring Its Own
Supply Voltage
VIN
7
DIN
MAX8215
MAX8216
DOUT
9
absolute maximum ratings have no effect on the reference. 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 reference reduces its voltage change, but doing so causes a time delay prior to the reference voltage returning
to its correct level.
Figure 9. Alternative Means for Reducing Impedance Level
Seen at DIN
Eliminating Output Oscillation when
Using the Auxiliary Comparator
most cases, using input resistor values on the order of
100kΩ creates 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 resistors on the output should be used.
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
When DOUT is required to sink larger currents (i.e.,
when smaller pull-up resistor values are used), oscillation 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.
_______________________________________________________________________________________
9
MAX8215/MAX8216
±5V, ±12V (±15V) Dedicated
Microprocessor Voltage Monitors
_Ordering Information (continued)
PART
TEMP. RANGE
MAX8216CPD
0°C to +70°C
14 Plastic DIP
MAX8216CSD
MAX8216C/D
MAX8216EPD
MAX8216ESD
MAX8216EJD
MAX8216MPD
MAX8216MJD
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
14 SO
Dice*
14 Plastic DIP
14 SO
14 CERDIP
14 Plastic DIP
14 CERDIP
* Dice are tested at TA = +25°C.
___________________Chip Topography
PIN-PACKAGE
GND
VREF
V DD OUT1
+5
OUT2
0.076"
OUT3 (1.930mm)
-5
+12V
(+15V)
OUT4
-12V
(-15V)
DIN
PGND DOUT
0.066"
(1.676mm)
( ) ARE FOR MAX8216 ONLY.
TRANSISTOR COUNT: 275;
SUBSTRATE CONNECTED TO VDD.
10
______________________________________________________________________________________
±5V, ±12V (±15V) Dedicated
Microprocessor Voltage Monitors
DIM
D1
A
A1
A2
A3
B
B1
C
D
D1
E
E1
e
eA
eB
L
α
E
E1
D
A3
A A2
INCHES
MIN
MAX
–
0.200
0.015
–
0.125
0.150
0.055
0.080
0.016
0.022
0.050
0.065
0.008
0.012
0.735
0.765
0.050
0.080
0.300
0.325
0.240
0.280
0.100 BSC
0.300 BSC
–
0.400
0.115
0.150
0˚
15˚
MILLIMETERS
MIN
MAX
–
5.08
0.38
–
3.18
3.81
1.40
2.03
0.41
0.56
1.27
1.65
0.20
0.30
18.67
19.43
1.27
2.03
7.62
8.26
6.10
7.11
2.54 BSC
7.62 BSC
–
10.16
2.92
3.81
0˚
15˚
21-330A
L A1
α
C
e
B1
B
eA
14-PIN PLASTIC
DUAL-IN-LINE
PACKAGE
eB
______________________________________________________________________________________
11
MAX8215/MAX8216
________________________________________________________Package Information
MAX8215/MAX8216
±5V, ±12V (±15V) Dedicated
Microprocessor Voltage Monitors
___________________________________________Package Information (continued)
DIM
E
A
A1
B
C
D
E
e
H
h
L
α
H
INCHES
MAX
MIN
0.069
0.053
0.010
0.004
0.019
0.014
0.010
0.007
0.344
0.337
0.157
0.150
0.050 BSC
0.244
0.228
0.020
0.010
0.050
0.016
8˚
0˚
MILLIMETERS
MIN
MAX
1.35
1.75
0.10
0.25
0.35
0.49
0.19
0.25
8.55
8.75
3.80
4.00
1.27 BSC
5.80
6.20
0.25
0.50
0.40
1.27
0˚
8˚
21-331A
h x 45˚
D
α
A
0.127mm
0.004in.
e
B
A1
C
L
14-PIN PLASTIC
SMALL-OUTLINE
PACKAGE
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.