MOTOROLA MC14600

MOTOROLA
Freescale Semiconductor, Inc.
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by MC14600/D
SEMICONDUCTOR TECHNICAL DATA
Low–Power CMOS
MC14600
ALARM IC
with Horn Driver
The MC14600 Alarm IC is designed to simplify the process of interfacing an
alarm level voltage condition to a piezoelectric horn and/or LED. With an extremely
low average current requirement and an integrated low battery detect feature, the
part is ideally suited to battery operated applications. The MC14600 is easily
configured with a minimum number of external components to serve a wide range
of applications and circuit configurations. Typical applications include intrusion
alarms, moisture or water ingress alarms, and personal safety devices.
16
1
P SUFFIX
PLASTIC DIP
CASE 648–08
Freescale Semiconductor, Inc...
• High Impedance, FET Input Comparator
• Comparator Outputs for Low Battery and Alarm Detect
• Alarm Detect Threshold Easily Established with 2 Resistor
• Integrated Oscillator and Piezoelectric Horn Driver
16
• Low Battery Trip Point Set Internally (Altered Externally)
1
• Horn “Chirp’’ During Low Battery Condition
DW SUFFIX
SOIC PACKAGE
CASE 751G–03
• Pulsed LED Drive Output
• Reverse Battery Protection
• Input Protection Diodes on the Detect Input
• Average Supply Current: 9 µA
ORDERING INFORMATION
MC14600P
MC14600DW
MC14600DWR2
PLASTIC DIP
SOIC
SOIC TAPE & REEL
PIN ASSIGNMENT
(16 PIN DIP)
MAXIMUM RATINGS* (Voltages referenced to VSS)
Rating
Symbol
Value
*0.5 to + 15
DC Supply Voltage
VDD
Input Voltage, All Inputs Except Pin 8
Vin
*0.25 to VDD + 0.25
I
10
DC Current Drain per Input Pin,
Except Pin 15 = 1 mA
DC Current Drain per Output Pin
I
Detect
Comp. Out
1
16
Guard
N/C
2
15
Alarm
Detect Input
Low V Set
3
14
N/C
Low V
Comp. Out
4
13
Alarm
Threshold
LED
5
12
Osc Capacitor
mA
VDD
6
11
Horn Out 2
°C
Timing
Resistor
Horn
Feedback
7
10
Horn Out 1
8
9
Unit
V
V
mA
30
Operating Temperature Range
TA
Storage Temperature Range
Tstg
*10 to + 60°C
*55 to + 125
Reverse Battery Time
tRB
5.0
°C
VSS
s
* Maximum Ratings are those values beyond which damage to the device may occur.
This device contains circuitry to protect the inputs against damage due to high static voltages
or electric fields; however, it is advised that normal precautions be taken to avoid application
of any voltage higher than maximum rated voltages to this high impedance circuit. For proper
operation it is recommended that Vin and Vout be constrained to the range VSS (Vin or Vout)
VDD.
v
v
REV 3
Motorola Sensor Device Data
 Motorola, Inc. 2000
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MC14600
RECOMMENDED OPERATING CONDITIONS (Voltages referenced to VSS)
Parameter
Supply Voltage
LED (Pin 5) Load
Symbol
Value
Unit
VDD
9.0
V
—
10
mA
ELECTRICAL CHARACTERISTICS (Voltages referenced to VSS, TA = 25°C)
Characteristic
Freescale Semiconductor, Inc...
Operating Voltage
Output Voltage
Piezoelectric Horn Drivers (IOH = +16 mA)
Comparators (IOH = +30 µA)
Piezoelectric Horn Drivers (IOL = 16 mA)
Comparators (IOL = 30 µA)
(IOL = 200 µA)
Pin #
Symbol
VDD
Vdc
Min
Typ
Max
Unit
6
VDD
—
6.0
—
12
V
6.5
8.5
—
—
—
—
8.8
—
0.1
—
—
—
0.9
0.5
0.5
V
VOH
V
10,11
4
10,11
4
1
VOL
7.4
9.0
7.4
9.0
—
Output Voltage — LED Driver, IOL = 10 mA
5
VOL
7.2
—
—
2.0
V
Output Impedance, Active Guard
16
Hi–Z
9.0
—
—
1000
kΩ
Standby Current (Rbias = 8.2 MΩ)
—
IDD
9.0
12.0
—
—
5.0
—
9.0
12.0
µA
Input Leakage Current
1
8
13
—
Iin
—
9.0
9.0
9.0
—
—
—
—
—
—
"30
"0.1
"30
nA
µA
nA
1
—
—
—
—
2.50
—
—
—
—
8.00
mA
mA
6
Vlow
9.0
7.2
—
7.8
V
*
*
*
Detect Comp. Out
V=3V
V=9V
Low Battery Threshold Voltage (Pin 3 open)
Offset Voltage (measured at Vin = VDD/2)
Active Guard
Detect Comparator
VOS
16
13,15
9.0
9.0
—
—
—
—
"100
"50
mV
Input Voltage Range
8
Vin
—
VSS –10
—
VDD + 10
V
Input Capacitance (to VSS @ 1 khz)
15
Cin
—
—
5.0
—
pF
13,15
Vcm
—
1.5
—
VDD –2
V
All pins
except 15
15
—
—
—
—
V
—
—
—
—
Common Mode Voltage Range
Breakdown Voltage
Human Body Models per MIL–STD–883 Method 3015
"500
"400
# Data labelled “Typ’’ is not to be used for design purposes but is intended as an indication of the IC’s potential performance.
2
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Freescale Semiconductor, Inc.
MC14600
TIMING PARAMETERS (Cosc = 0.1 µF, Rbias = 8.2 MΩ, VDD = 9.0 V, TA = 25°C, See Figure 2)
Characteristics
Oscillator Period (1 Clock Cycle = 1 Oscillator Period)
No Alarm
Alarm
Freescale Semiconductor, Inc...
Oscillator Pulse Width (No Alarm and Alarm Condition)
Pin #
Symbol
Min
Max
Units
12
tCI
—
1.25
30
2.25
52
s
ms
3,4,5,13
tr
7.0
13
ms
LED Output Period
No Alarm
Alarm
5
tLED
—
30
.71
52
1.25
s
ms
Alarm Horn Output
Hi Time
Low Time
10,11
ton
toff
120
60
208
104
ms
ms
Low Battery Horn Output
Hi Time
Between Pulses
10,11
ton
toff
7.0
30
13
52
ms
s
VDD
VDD
LOW V COMP.
OUT
–
LOW V SET
DETECT
COMPARATOR OUT
3
11
LOW BATTERY
COMPARATOR
+
1
ALARM 13
THRESHOLD
HORN FEEDBACK
8
4
10 HORN
OUT 1
ALARM
LOGIC
–
HORN
OUT 2
DETECT
COMPARATOR
+
ALARM DETECT 15
INPUT
GUARD
AMP
+
VDD
OSC
AND
TIMING
HI–Z
5
LED
16
–
VDD = PIN 6
VSS = PIN 9
Cosc
12
7
Rbias
VDD
Figure 1. Block Diagram
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MC14600
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DEVICE OPERATION
TIMING
The internal oscillator of the MC14600 operates with a
period of 1.65 seconds during no–alarm conditions. Each
1.65 seconds, internal power is applied to the entire IC and a
check is made for an alarm input level except during LED
pulse, Low Battery Alarm Chirp, or Horn Modulation (in
alarm). Every 24 clock cycles a check is made for low battery
by comparing VDD to an internal zener voltage. Since very
small currents are used in the oscillator, the oscillator capacitor should be of a low leakage type.
power strobed and thus gives constant protection from surface leakage currents. Pin 15 (the Detect input) has internal
diode protection against static damage.
DETECT CIRCUITRY
If an alarm condition is detected, the oscillator period
becomes 41.67 ms and the piezoelectric horn oscillator circuit is enabled. The horn output is modulated 167 ms on,
83 ms off. During the off time, alarm detect input (Pin 15) is
again checked and will inhibit further horn output if no alarm
condition is sensed. During alarm conditions the low battery
chirp is inhibited, and the LED pulses at a 1.0 Hz rate.
An active guard is provided on a pin adjacent to the detect
input (Pin 16). The voltage at this pin will be within 100 mV of
the input signal. Pin 16 will allow monitoring of the input signal at pin 15 through a buffer. The active guard op amp is not
ALARM THRESHOLD (SENSITIVITY)
The alarm condition voltage level is set externally through
Pin 13. A voltage divider can be used to set the alarm trip
point. Pin 13 is connected internally to the negative input of
the detect comparator.
LOW BATTERY THRESHOLD
The low battery voltage level is set internally by a voltage
divider connected between VDD and VSS. This voltage can
be altered by external resistors connected from pin 3 to
either VDD or VSS. A resistor to VDD will decrease the threshold while a resistor to GND will increase it.
LED PULSE
The 9–volt battery level is checked every 40 seconds during the LED pulse. The battery is loaded via a 10 mA pulse
for 10 ms. If the LED is not used, it should be replaced with
an equivalent resistor so that the battery loading remains at
10 mA.
VDD
Rp
1
16
MC14600
2
15
VDD
VDD
14
4
13
5
12
6
11
7
10
8
9
R1
330 Ω
Rbias
0.1 µF
3
DETECT
INPUT
R2
COSC
1.5 MΩ*
0.001 µF
220 kΩ*
*NOTE: Component values may change depending on type of piezoelectric horn used.
Figure 2. Typical Application Components
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OSC
PIN 12
1
2
3
4
5
6
7
8
9
23
24 1
6
12
MC14600
18
ALARM – N
–Y
NO ALARM
NO LOW BAT
LOW BATT
COMP (PIN 4)
ALARM
NO ALARM
LATCH ALARM CONDITION
LOW BATT
COMP
DETECT OUT
(PIN 1)
Freescale Semiconductor, Inc...
OSC
PIN 12
ALARM – N
–Y
NO ALARM, LOW BATTERY
HORN
(PINS 10 AND 11)
24
LOW BATTERY CHIRP
LED – OFF
– ON
DETECT OUT
(PIN 1)
&
(NOTE 1) HORN – ON
– OFF
24 CLOCKS
LED – OFF
– ON
24 CLOCKS
Figure 3. MC14600 Timing Diagram
NOTES:
1. Horn modulation is self–completing. When going from Alarm to No Alarm, the alarm condition will terminate only when horn is off.
2. Comparators are strobed once per cycle.
3. Low battery comparator information is latched only during LED pulse.
4. Current source required into Pin 1.
5. Alarm Condition can initiate on any clock pulse except 1 and 7.
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MC14600
PACKAGE DIMENSIONS
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. DIMENSION L TO CENTER OF LEADS WHEN
FORMED PARALLEL.
4. DIMENSION B DOES NOT INCLUDE MOLD FLASH.
5. ROUNDED CORNERS OPTIONAL.
–A–
16
9
1
8
DIM
A
B
C
D
F
G
H
J
K
L
M
S
B
F
C
L
S
–T–
K
H
Freescale Semiconductor, Inc...
SEATING
PLANE
G
D
M
J
16 PL
0.25 (0.010)
M
T A
M
CASE 648–08
ISSUE R
A
D
9
1
8
h X 45 _
E
M
14X
e
T A
S
B
S
A1
L
A
0.25
B
B
STYLE 2:
PIN 1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
COMMON DRAIN
COMMON DRAIN
COMMON DRAIN
COMMON DRAIN
COMMON DRAIN
COMMON DRAIN
COMMON DRAIN
COMMON DRAIN
GATE
SOURCE
GATE
SOURCE
GATE
SOURCE
GATE
SOURCE
NOTES:
1. DIMENSIONS ARE IN MILLIMETERS.
2. INTERPRET DIMENSIONS AND TOLERANCES
PER ASME Y14.5M, 1994.
3. DIMENSIONS D AND E DO NOT INLCUDE MOLD
PROTRUSION.
4. MAXIMUM MOLD PROTRUSION 0.15 PER SIDE.
5. DIMENSION B DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.13 TOTAL IN EXCESS
OF THE B DIMENSION AT MAXIMUM MATERIAL
CONDITION.
B
0.25
H
M
8X
16X
CATHODE
CATHODE
CATHODE
CATHODE
CATHODE
CATHODE
CATHODE
CATHODE
ANODE
ANODE
ANODE
ANODE
ANODE
ANODE
ANODE
ANODE
MILLIMETERS
MIN
MAX
18.80
19.55
6.35
6.85
3.69
4.44
0.39
0.53
1.02
1.77
2.54 BSC
1.27 BSC
0.21
0.38
2.80
3.30
7.50
7.74
0_
10 _
0.51
1.01
q
M
16
STYLE 1:
PIN 1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
INCHES
MIN
MAX
0.740
0.770
0.250
0.270
0.145
0.175
0.015
0.021
0.040
0.70
0.100 BSC
0.050 BSC
0.008
0.015
0.110
0.130
0.295
0.305
0_
10 _
0.020
0.040
SEATING
PLANE
T
C
DIM
A
A1
B
C
D
E
e
H
h
L
q
MILLIMETERS
MIN
MAX
2.35
2.65
0.10
0.25
0.35
0.49
0.23
0.32
10.15
10.45
7.40
7.60
1.27 BSC
10.05
10.55
0.25
0.75
0.50
0.90
0_
7_
CASE 751G–03
ISSUE B
6
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Motorola Sensor Device Data
Freescale Semiconductor, Inc.
MC14600
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NOTES
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MC14600
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Motorola Sensor Device Data
MC14600/D