MC145012 查看數據表（PDF） - Motorola => Freescale
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MC145012
Motorola => Freescale
MC145012 Datasheet PDF : 12 Pages
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MC145012
3
DETECT
12
OSC
OSC
R1 13
16
TEST
STROBE 4
LOW--SUPPLY 15
TRIP
Freescale Semiconductor, Inc.
BLOCK DIAGRAM
C1 C2
12
AMP
VDD -- 3.5 V
REF
--
COMP
+
GATE
ON/OFF
TIMING
LOGIC
GATE
ON/OFF
VDD -- 5 V
REF
SMOKE
--
COMP
+
ALARM
LOGIC
7 I/O
TEMPORAL PATTERN 8
HORN MODULATOR
AND DRIVER
9
10
6
BRASS
SILVER
FEEDBACK
IRED
11 LED
PIN 5 = VDD
PIN 14 = VSS
MAXIMUM RATINGS* (Voltages referenced to VSS)
Symbol
Parameter
Value
Unit
VDD
DC Supply Voltage
Vin
DC Input Voltage
−0.5 to +12
V
C1, C2, Detect
−0.25 to VDD +0.25
V
Osc, Low--Supply Trip
−0.25 to VDD +0.25
I/O
−0.25 to VDD +10
Feedback
−15 to +25
Test
−1.0 to VDD +0.25
Iin
DC Input Current, per Pin
10
mA
Iout
DC Output Current, per Pin
25
mA
IDD
DC Supply Current, VDD and VSS Pins
+25 / −150
mA
PD
Power Dissipation in Still Air,
5 Seconds
1200**
mW
Continuous
350***
Tstg
Storage Temperature
−55 to +125
°C
TL
Lead Temperature, 1 mm from Case for 10 Seconds
260
°C
* Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the limits in
the Electrical Characteristics tables.
** Derating: -- 12 mW/°C from 25° to 60°C.
*** Derating: -- 3.5 mW/°C from 25° to 60°C.
This device contains protection circuitry to guard against damage due to high static voltages or electric fields. However, precautions must
be taken to avoid applications of any voltage higher than maximum rated voltages to this high--impedance circuit. For proper operation, Vin and
Vout should be constrained to the range VSS ≤ (Vin or Vout) ≤ VDD except for the I/O, which can exceed VDD, and the Test input, which can go
below VSS.
Unused inputs must always be tied to an appropriate logic voltage level (e.g., either VSS or VDD). Unused outputs and/or an unused I/O must
be left open.
2
For More Information On This Product, Motorola Sensor Device Data
Go to: www.freescale.com
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