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19-0169; Rev 0; 8/93
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 250A max supply current over temperature.
____________________________Features
o 4 Dedicated Comparators plus 1 Auxiliary Comparator o 5V Dedicated Comparator Has 1.25% Accuracy o -5V, +12V, -12V, +15V, -15V Dedicated Comparators Have 1.5% Accuracy o Overvoltage/Undervoltage Detection or Programmable Delay Using Auxiliary Comparator o Internal 1.24V Reference with 1% Initial Accuracy o Wide Supply Range: 2.7V to 11V o Built-In Hysteresis o 250A Max Supply Current Over Temp. o Independent Open-Drain Outputs o 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 0C to +70C 0C to +70C 0C to +70C -40C to +85C -40C to +85C -40C to +85C -55C to +125C -55C to +125C PIN-PACKAGE 14 Plastic DIP 14 SO Dice* 14 Plastic DIP 14 SO 14 CERDIP 14 Plastic DIP 14 CERDIP
__________Typical Operating Circuit
0.1F GND PGND +5V VDD OUT1
+5V
Ordering Information continued on last page. *Dice are tested at TA = +25C.
-5V
MAX8215 MAX8216
OUT2
__________________Pin Configuration
TOP VIEW
+12V (+15V) OUT3
VREF -12V (-15V) OUT4 GND
1 2
14 VDD 13 OUT1
+5V 3 -5V 4 +12V (+15V) -12V (-15V) DIN DOUT 5 6
MAX8215 MAX8216
12 OUT2 11 OUT3 10 OUT4 9 8 DOUT PGND
DIN 7
DIP/SO
( ) ARE FOR MAX8216 ONLY. 1.24V REFERENCE VREF ( ) ARE FOR MAX8216 ONLY.
________________________________________________________________ Maxim Integrated Products
1
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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 = +70C) Plastic DIP (derate 10.00mW/C above +70C) ...........800mW SO (derate 8.33mW/C above +70C) ..........................667mW CERDIP (derate 9.09mW/C above +70C) ..................727mW Operating Temperature Ranges: MAX821_C_ _ ......................................................0C to +70C MAX821_E_ _....................................................-40C to +85C MAX821_M_ _ .................................................-55C to +125C Storage Temperature Range .............................-65C to +165C Lead Temperature (soldering, 10sec) .............................+300C
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 VDD Supply Voltage Range IDD Supply Current REFERENCE OUTPUT TA = +25C Output Voltage Tolerance Referred to 1.24V Load Current Load Regulation Line Regulation Output Tempco COMPARATOR INPUTS VIN decreasing, TA = +25C MAX821_C +5V Trip Level TA = TMIN to TMAX VIN increasing TA = +25C +5V Trip Level Hysteresis TA = +125C TA = -55C VIN decreasing (MAX8215 only), TA = +25C +12V Trip Level MAX821_C TA = TMIN to TMAX MAX821_E MAX821_M VIN decreasing (MAX8216 only), TA = +25C +15V Trip Level MAX821_C TA = TMIN to TMAX MAX821_E MAX821_M 2 10.431 10.404 10.378 10.325 13.036 13.003 12.970 12.904 13.235 MAX821_E MAX821_M 4.521 4.500 4.500 4.464 4.636 1.25 1.75 0.8 10.590 10.749 10.775 10.802 10.855 13.434 13.467 13.500 13.566 V V % 4.579 4.636 4.657 4.657 4.693 4.749 V 3.3 0.01 15 MAX821_C TA = TMIN to TMAX MAX821_E MAX821_M -1.00 -1.5 -1.75 -2.5 1.00 1.5 1.75 2.5 40 A V/A %/V ppm/C % CONDITIONS MAX821_C MAX821_E/M MIN 2.7 2.85 137 TYP MAX 11 11 250 UNITS
V A
_______________________________________________________________________________________
5V, 12V (15V) Dedicated Microprocessor Voltage Monitors
ELECTRICAL CHARACTERISTICS (continued)
(VDD = +5V, GND = 0V, TA = TMIN to TMAX, unless otherwise noted.) PARAMETER CONDITIONS I VIN I decreasing, TA = +25C MAX821_C MAX821_E TA = TMIN to TMAX MAX821_M I VIN I decreasing (MAX8216 only), TA = +25C -15V Trip Level MAX821_C TA = TMIN to TMAX MAX821_E MAX821_M I VIN I decreasing, TA = +25C MAX821_C TA = TMIN to TMAX MAX821_E MAX821_M +15V trip level +12V trip level Threshold Hysteresis TA = +25C -15V trip level -12V trip level -5V trip level Hysteresis Tempco, 15, 12, -5 +5V input to GND +12V/+15V input to GND -5V input to REF -12V/-15V input to REF AUXILIARY COMPARATOR INPUT VIN decreasing, TA = +25C MAX821_C MAX821_E MAX821_M TA = +25C TA = +25C VOL; VDD = 5V, ISINK = 2mA Voltage Output Low Leakage Current Comparator Response Time (All Comparators) VDD = 1.5V, ISINK = 0.2mA VDD = 1.0V, ISINK = 0.1mA Off State 30mV overdrive (Note 1) 20
VTHR
MAX8215/MAX8216
MIN
TYP
MAX
UNITS
-12V Trip Level
-10.431 -10.590 -10.749 -10.404 -10.776 -10.378 -10.802 -10.325 -13.003 -12.970 -12.904 -4.348 -4.337 -4.326 -4.304 1.25 1.25 1.50 1.50 1.60 0.005 130 168 160 190 -1.5 -1.75 -2.00 -2.50 0 1.5 1.75 2.00 2.50 2.00 10 0.3 0.3 1.0 -4.415 -10.855 -13.467 -13.500 -13.566 -4.482 -4.493 -4.500 -4.525 2.00 2.00 2.25 2.25 2.25 -13.036 -13.235 -13.434
V
V
-5V Trip Level
V
%
%/C
Input Resistance
TA = +25C
k
Trip Level with Respect to 1.24V
%
Threshold Hysteresis Input Bias Current
1.25 2 0.11 0.04 0.10
% nA
V A s
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
5V, 12V (15V) Dedicated Microprocessor Voltage Monitors MAX8215/MAX8216
__________________________________________Typical Operating Characteristics
(TA=+25C, unless otherwise noted.)
COMPARATOR INPUT BIAS CURRENT vs. TEMPERATURE
MAX8215-TOC1
COMPARATOR INPUT BIAS CURRENT vs. SUPPLY VOLTAGE
MAX8215-TOC2
OUTPUT VOLTAGE LOW vs. OUTPUT SINK CURRENT
30 OUTPUT SINK CURRENT (mA) 25 20 10 1.5 5 0.5 0 TA = +125C TA = -55C TA = +25C
MAX8215-TOC3
4 3.5 INPUT BIAS CURRENT (nA) 3 2.5 2 1.5 1 0.5 0 -60 -40 -20 0 VDD = 5V
1.6 1.4 INPUT BIAS CUREENT (nA) 1.2 1 0.8 0.6 0.4 0.2 0 TA = +25C
35
20 40 60 80 100 120 140
2
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 VOL (V)
TEMPERATURE (C)
SUPPLY VOLTAGE (V)
SUPPLY CURRENT vs. SUPPLY VOLTAGE
MAX8215-TOC4
REFERENCE VOLTAGE vs. REFERENCE SOURCE CURRENT
MAX8215-TOC5
REFERENCE VOLTAGE vs. SUPPLY VOLTAGE
TA = -55C
MAX8215-TOC6
155 150 SUPPLY CURRENT (A) 145 140 TA = +125C 135 130 125 2 3 4 5 6 7 -5V PIN = -5V -12V PIN = -5V +5V PIN = +5V +12V PIN = +12V 8 9 TA = +25C TA = -55C
1.238 VREF,REFERENCE VOLTAGE (V) 1.237 1.236 TA = +25C 1.235 1.234 1.233 1.232 1.231 1.23 0 50 100 150 200 250 VDD = 5V TA = +125C
1.25 VREF, REFERENCE VOLTAGE (V) 1.2 1.15 1.1 1.05 1 0.95 NOTE: -55C IS WORST CASE CONDITION FOR REFERENCE REGULATION AT LOW VOLTAGES. 1 2 3 456789 SUPPLY VOLTAGE (V)
TA = -55C
10 11 12
300
10 11
SUPPLY VOLTAGE (V)
REFERENCE SOURCE CURRENT (A)
VREF OUTPUT VOLTAGE vs. TEMPERATURE
MAX8215-TOC7
1.238 VREF, REFERENCE VOLTAGE (V) 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
_______________________________________________________________________________________
5V, 12V (15V) Dedicated Microprocessor Voltage Monitors
_____________________________Typical Operating Characteristics (continued)
(TA = +25C, unless otherwise noted.)
+5V RESPONSE WITH 100mV INPUT EXCURSION AROUND TRIP LEVEL
8215/16 SCOPE1
MAX8215/MAX8216
-5V RESPONSE WITH 100mV INPUT EXCURSION AROUND TRIP LEVEL
+5V PIN
8215/16 SCOPE2
+5V PIN
OUT1
OUT1
+5V COMP
-5V COMP
DOUT OUTPUT VOLTAGE vs. SUPPLY VOLTAGE R1 = 15k, R2 = 40k (see Figure 4)
8215/16 SCOPE3
DIN COMPARATOR RESPONSE WITH 30mV OVERDRIVE
8215/16 SCOPE4
SUPPLY VOLTAGE
COMP OUTPUT COMP INPUT
DOUT OUTPUT VOLTAGE
DIN COMPARATOR RESPONSE WITH 50mV OVERDRIVE
8215/16 SCOPE5
DIN COMPARATOR RESPONSE WITH 100mV OVERDRIVE
8215/16 SCOPE6
COMP OUTPUT COMP INPUT
COMP OUTPUT
COMP INPUT
_______________________________________________________________________________________
5
5V, 12V (15V) Dedicated Microprocessor Voltage Monitors MAX8215/MAX8216
_____________________Pin Description
+5V
PIN
NAME VREF GND +5V -5V +12V (+15V) -12V (-15V) DIN PGND DOUT OUT4, OUT3, OUT2, OUT1 VDD
FUNCTION Output of the internal 1.24V reference Ground. Connect to PGND. Input for monitoring +5V supply Input for monitoring -5V supply MAX8215 input for monitoring +12V (MAX8216 input for monitoring +15V) MAX8215 input for monitoring -12V (MAX8216 input for monitoring -15V) Noninverting input of the auxiliary comparator. Its inverting input is tied to the internal reference. Power-supply ground. Bypass VDD to this pin. Output of the auxiliary comparator Outputs of the four dedicated comparators Power-supply positive voltage input. Bypass to PGND.
( ) ARE FOR MAX8216 ONLY. DIN +12V (+15V) -5V
OUT1
1
2 3 4 5
MAX8215 MAX8216
OUT2
OUT3
6
-12V (-15V) OUT4
7 8 9 10, 11, 12, 13
DOUT
1.24V REFERENCE
14
VREF VDD PGND GND
Figure 1. Block Diagram
_______________Detailed Description
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 0.1F 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 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
_______________________________________________________________________________________
5V, 12V (15V) Dedicated Microprocessor Voltage Monitors MAX8215/MAX8216
VTRIP2 INPUT VOLTAGE (VS) VTRIP1 RA VHYST 1 + RB
(
)
VDD
RA +VS RB
MAX8215 MAX8216
7 DIN
180k DOUT 9 OUTPUT VOLTAGE
GND
VDD
GND 1.24V REFERENCE TO DETERMINE THE TRIP VOLTAGES FROM PARTICULAR RESISTOR VALUES: RA VTRIP1 = VREF 1 + RB RA VTRIP2 = (VREF + VHYST) 1 + RB VHYST = 16mV TYP TO CALCULATE THE REQUIRED RESISTOR RATIOS FOR PARTICULAR TRIP VOLTAGES: RA VTRIP1 RB = VREF - 1 RA VTRIP2 RB = VREF + VHYST - 1
VTRIP = RA + RB RB
(
) (V
(
)
REF
)
(
)
Figure 2. Undervoltage/Overvoltage Comparator Using the Auxiliary Comparator
Figure 3. Undervoltage/Overvoltage Detector Waveforms and Formulas
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.
0.1F 8 2 GND PGND VDD 14
+VS R1
3
+5V
MAX8215 MAX8216
OUT1
13 UNDERVOLTAGE
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.
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
_______________________________________________________________________________________
5V, 12V (15V) Dedicated Microprocessor Voltage Monitors MAX8215/MAX8216
+5V 0.1F 8 2 GND PGND VDD 14 680k 680k GND OUTPUT VOLTAGE (OUT1) 13 VTRIP2 INPUT VOLTAGE (VS) VTRIP1
+VS
3
+5V
MAX8215 MAX8216
VDD tDLY
OUT1
7
DIN
DOUT
9
RESET
OUTPUT VOLTAGE (DOUT)
GND VDD
GND VREF tDLY = -RC In 1 - V CC
VTRIP1 IS FOR VS DECREASING; VTRIP2 IS FOR VS INCREASING. 1F
(
)
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
Figure 6. Microprocessor Reset with Time Delay Waveforms
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 VDD 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 0.1F capacitor) is required when performing this function. However, using resistor values higher than 100k 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.
Figure 7 shows Figure 5's P 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 2.7k if the outputs are pulled up to VDD. In general, save power by using higher values, e.g., 100k. Use of higher-value resistors also minimizes the possibility of oscillations due to a spurious feedback (see the section Eliminating Output Oscillation).
Microprocessor Reset ____________Circuit with Time Delay
It is often necessary to reset a microprocessor (P) 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. P reset circuits typically include this feature because it gives the P 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
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
+5V V+ 1k 1k 0.1F 0.1F 8 2 GND PGND VDD 14 680k 680k 14 VDD OUT1 13
MAX8215 MAX8216
+VS 3 +5V
MAX8215 MAX8216
OUT1
13
7
DIN
DOUT
9
RESET
Figure 8. Alternate Bypass Scheme
1F
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
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 100k 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. 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
_______________________________________________________________________________________
5V, 12V (15V) Dedicated Microprocessor Voltage Monitors MAX8215/MAX8216
_Ordering Information (continued)
PART MAX8216CPD MAX8216CSD MAX8216C/D MAX8216EPD MAX8216ESD MAX8216EJD MAX8216MPD MAX8216MJD TEMP. RANGE 0C to +70C 0C to +70C 0C to +70C -40C to +85C -40C to +85C -40C to +85C -55C to +125C -55C to +125C PIN-PACKAGE 14 Plastic DIP 14 SO Dice* 14 Plastic DIP 14 SO 14 CERDIP 14 Plastic DIP 14 CERDIP
GND VREF V DD OUT1
___________________Chip Topography
+5 OUT2 -5 +12V (+15V) 0.076" OUT3 (1.930mm) OUT4
* Dice are tested at TA = +25C.
-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
________________________________________________________Package Information
D1
DIM A A1 A2 A3 B B1 C D D1 E E1 e eA eB L INCHES MAX MIN 0.200 - - 0.015 0.150 0.125 0.080 0.055 0.022 0.016 0.065 0.050 0.012 0.008 0.765 0.735 0.080 0.050 0.325 0.300 0.280 0.240 0.100 BSC 0.300 BSC 0.400 - 0.150 0.115 15 0 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
MAX8215/MAX8216
E D A3 A A2 E1
L A1 e B
C B1 eA eB
14-PIN PLASTIC DUAL-IN-LINE PACKAGE
______________________________________________________________________________________
11
5V, 12V (15V) Dedicated Microprocessor Voltage Monitors MAX8215/MAX8216
___________________________________________Package Information (continued)
DIM A A1 B C D E e H h L 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
E
H
D A e B
0.127mm 0.004in.
h x 45
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 (c) 1993 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.

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