Datasheet Download

IC for Human Body Detector
Amplifier
for Pyroelectric Infrared Sensor
BD9251FV
No.11096EAT01
●Description
BD9251FV is used for the human body detection application.
Make to single-chip, easy to use then before. Power-saving in the best design.
Reduce the standby power requirement of the device used always. Don’t choose the mounting place by a space-saving.
●Features
1) Amplifier for sensor output
2) Comparator for sensor output
3) Built-in voltage regulator
4) Built-in moving detector
●Applications
Lighting, Sensor Light, Security system, WEB camera, TV, PC display, Air Conditioner, Ventilation fan
●Absolute Maximum Ratings (Ta=25℃)
Parameter
Symbol
Ratings
Units
Supply Voltage
VDD
-0.3~7.0
V
Power Dissipation
Pd
440※1
mW
Operating Temperature
Topr
-30~75
℃
Storage Temperature
Tstg
-55~125
℃
※1. It reduces 3.5mW/℃ then Ta≧25℃. (On glass epoxy board of 70mm×70mm×1.6mm)
●Operating Conditions
Parameter
Supply Voltage
A1P_IN Offset Voltage
Symbol
Ratings
Units
Min.
Typ.
Max.
VDD
2.97
5.0
6.0
V
VA1P_IN_OFFSET
-
1.5
-
V
Conditions
VDRAIN=2.3V
This product doesn’t design for protection radioactive rays.
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© 2011 ROHM Co., Ltd. All rights reserved.
1/8
2011.10 - Rev.A
Technical Note
BD9251FV
●Electric Characteristics (VDD=5.0V, Ta=25℃)
Parameter
Symbol
Limits
Units
Conditions
Min.
Typ.
Max.
IDD
-
300
400
uA
Output no load
VDRAIN
2.0
2.3
-
V
VDD≧2.97V,
IDRAIN≦100µA
AMP1/AMP2 Input Voltage
VIN
0.1
-
VDD-0.8
V
AMP1/AMP2 Gain
AG
-
-
46
dB
AMP1/AMP2 Unity Gain
AUG
-
1
-
MHz
AMP1 Input Offset Voltage
VA1OFF
-
-
10
mV
AMP2 Output Offset Voltage
VA2OUT
-
1.5
-
V
A2_OUT Output Current (source)
IA2OUT1
20
30
-
µA
A2_OUT Output Current (sink)
IA2OUT2
20
200
-
µA
D_OUT / T_OUT Output "H" Voltage
VOH
VDD-0.6
-
VDD
V
IOH=-1mA
D_OUT / T_OUT Output "L" Voltage
VOL
0
-
0.6
V
IOL=+1mA
Supply Current
DRAIN Output Voltage
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© 2011 ROHM Co., Ltd. All rights reserved.
2/8
2011.10 - Rev.A
Technical Note
BD9251FV
●Electrical characteristic curves (Reference data)
400
350
300
250
250
IDD [uA]
300
25℃
200
-30℃
150
6V
5V
2.97V
150
100
50
50
2
3
4
5
6
7
-50
8
0
VDD[V]
Fig.1 IDD
Fig.2 IDD
2
6
7
Fig.3 Drain Voltage
(source 100uA)
RIPPLE REJECTION [dB]
2.97V
DRAIN[V]
DRAIN[V]
1
5V
1
0
0
50
0
20
40
60
80
Isource [uA]
100
120
Fig.5 Drain Voltage
(Ta=25℃)
Fig.4 Drain Voltage
(source 100uA)
0
0uA
-10
Drain Voltage PSRR (Ta=25℃)
VDD=5.0V
100uA
-20
1000
5V
100
0uA
Fig.8 Drain Voltage PSRR (Ta=25℃)
VDD=6.0V
10
no
load
0.00
50
50
40
40
40
30
20
25℃
20
25℃
10
10
-10
1.E+01 1.E+021.E+03 1.E+041.E+05 1.E+061.E+07
frequency [Hz]
Fig.10 amp1/amp2 closed-loop-gain
VDD=2.97V
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© 2011 ROHM Co., Ltd. All rights reserved.
0.10
C2 load [uF]
1.00
10.00
-30℃
20
10
75℃
0
0.01
30
-30℃
gain [dB]
gain [dB]
-30℃
6V
2.97V
Fig.9 DRAIN VOLTAGE warm_up_time
(Ta=25℃)
50
30
Drain Voltage PSRR (Ta=25℃)
VDD=2.97V
10000
-30
1.E+01 1.E+02 1.E+03 1.E+04 1.E+05 1.E+06
frequency [Hz]
-30
1.E+01 1.E+02 1.E+03 1.E+04 1.E+05 1.E+06
frequency [Hz]
0uA
100000
warm_up_time [us]
-20
RIPPLE REJECTION [dB]
100uA
100uA
-20
Fig.6
0
-10
-10
-30
1.E+01 1.E+02 1.E+03 1.E+04 1.E+05 1.E+06
frequency [Hz]
0
100
Ta [℃]
Fig.7
4
5
VDD[V]
0
2
5V
2.97V
-50
3
6V
2
RIPPLE REJECTION [dB]
0
100
3
6V
gain [dB]
50
Ta[℃]
3
25℃
1
0
0
-30℃
2
200
100
75℃
DRAIN [V]
350
IDD [uA]
3
400
75℃
75℃
0
0
-10
-10
25℃
75℃
1.E+01 1.E+02 1.E+03 1.E+04 1.E+05 1.E+06 1.E+07
1.E+01 1.E+02 1.E+03 1.E+04 1.E+05 1.E+06 1.E+07
frequency [Hz]
frequency [Hz]
Fig.11 amp1/amp2 closed-loop-gain
VDD=5V
Fig.12 amp1/amp2 closed-loop-gain
VDD=6V
3/8
2011.10 - Rev.A
Technical Note
BD9251FV
●Electrical characteristic curves (Reference data) – Continued
7
7
6
6
5
4
-30℃
5
5V
4
3
2.97V
3
2
2
1
1
1
0
2
3
4
5
6
7
0
50
100
2
Fig.14 AMP2 Output High Voltage
(source 20uA)
6
6
5
5
5
3
D_OUT [V]
6
D_OUT [V]
7
4
4
3
6V
5V
75℃
25℃
-30℃
0
50
3
4
Ta [℃]
5
6
7
VDD [V]
6
6
5
5
T_OUT [V]
7
3
2
3
2
3
4
5
6
7
VDD [V]
Fig.17 D_OUT Output Low Voltage
(sink 1mA)
7
4
75℃
0
2
100
Fig.16 AMP2 Output Low Voltage
(source 20uA)
25℃
4
1
0
-50
7
2
1
0
6
-30℃
2
2
5
Fig.15 AMP2 Output Low Voltage
(sink 20uA)
7
2.97V
4
VDD [V]
7
1
3
Ta [℃]
Fig.13 AMP2 Output High Voltage
(source 20uA)
75℃
25℃
-30℃
0
-50
VDD [V]
A2_OUT [V]
4
2
0
T_OUT [V]
A2_OUT [V]
A2_OUT [V]
75℃
3
6
6V
25℃
5
A2_OUT [V]
7
Fig.18 D_OUT Output High Voltage
(source 1mA)
25℃
4
75℃
-30℃
3
2
1
75℃
25℃
-30℃
1
0
2
3
4
5
6
7
VDD [V]
Fig.19 T_OUT Output Low Voltage
(sink 1mA)
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© 2011 ROHM Co., Ltd. All rights reserved.
0
2
3
4
5
6
7
VDD [V]
Fig.20 T_OUT Output High Voltage
(source 1mA)
4/8
2011.10 - Rev.A
Technical Note
BD9251FV
●Block Diagram/Application
C1
C1
VDDVDD
DRAIN
DRAIN
Voltage
Regulator
C2
+
AMP1
-
C3
AMP2
A1_OUT
A2P_DI
A2N_IN
R2
C4
R1
C6
R3
D_OUT
S
-
REF_OUT COMP_IN+
A2_OUT
GND
T_OUT
R
R5
R4
C5
T_OU
+
33kΩ
47kΩ
A1N_IN
-
D_OU
S
+
7.5kΩ
10kΩ
G
+
7.5kΩ
+
650kΩ
AMP1
47kΩ
+
S
AMP2
-
7.5kΩ 33kΩ
G
+
33kΩ
10kΩ
D
A1P_IN
350kΩ
C3
7.5kΩ
S
33kΩ
D
A1P_IN
650kΩ
Pyroelectric
sensor
350kΩ
Pyroelectric
sensor
C2
BD9251FV
BD9251FV
Voltage
Regulator
C7
C8
※ Please decide the constant after it confirms it enough examing the characteristic and the condition
of the pyroelectric sensor.
A1N_IN
A1_OUT
A2P_DI
A2N_IN
REF_OUT
A2_OUT
COMP_IN
GND
R5
R4
R2
C4
R1
C5
C6
R3
C8
C7
※ Please decide the constant after it confirms it enough examing the characteristic and the condition
of the pyroelectric sensor.
Example of circuit constant:
C1=C2=C3 : 1uF
C4=C6
: 6.9uF
C5=C7
: 15nF
C8
: 10uF
R1=R3
R2=R4
R5
: 47kΩ
: 4.7MΩ
: 220kΩ
●PIN Description
PIN No.
PIN Name
1
GND
2
NC
3
DRAIN
Power supply for pyroelectric infrared sensor
4
A1P_IN
Sensor input
5
A1N_IN
Amp1 n-input
6
A1_OUT
Amp1 output
7
A2P_DI
Amp2 diode output
8
A2N_IN
Amp2 n-input
9
A2_OUT
Amp2 output, Analog output
10
REF_OUT
Reference voltage (1/2VDD) output
11
COMP_IN
Comparator input
12
D_OUT
Comparator output
13
T_OUT
Moving detection output
14
VDD
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© 2011 ROHM Co., Ltd. All rights reserved.
Function
Remarks
Ground
NC
Power supply
5/8
2011.10 - Rev.A
Technical Note
BD9251FV
●Timing chart ( When using dual type pyro sensor )
Left
Right
Left
Right
1 →2
Pyro sensor
1 ←2
Pyro sensor
Sensor Part
Time axis
Time axis
A1P_IN
(Pyro sensor output)
A1P_IN
Pyro sensor output)
VREF_H
VREF_H
A2_OUT
(Analog output)
A2_OUT
(Analog output)
VREF_L
VREF_L
VREF_H side
Comparator output
VREF_H side
Comparator output
VREF_L side
Comparator output
VREF_L side
Comparator output
D_OUT
D_OUT
T_OUT
Sensor Part
L
H
T_OUT
H
L
※When using dual type pyro sensor , it’s possible to detect the direction of movement by checking the switch of T_out signal at D_out=H.
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© 2011 ROHM Co., Ltd. All rights reserved.
6/8
2011.10 - Rev.A
Technical Note
BD9251FV
●Notes for use
(1) Absolute maximum ratings
Use of the IC in excess of absolute maximum ratings such as the applied voltage or operating temperature range may
result in IC damage. Assumptions should not be made regarding the state of the IC (short mode or open mode) when
such damage is suffered. A physical safety measure such as a fuse should be implemented when use of the IC in a
special mode where the absolute maximum ratings may be exceeded is anticipated.
(2) GND potential
Ensure a minimum GND pin potential in all operating conditions.
(3) Short circuit mode between terminals and wrong mounting
In order to mount the IC on a set PCB, pay thorough attention to the direction and offset of the ICs. Erroneous
mounting can destroy the IC. Furthermore, if a short circuit occurs due to foreign matters entering between terminals or
between the terminal and the power supply or the GND terminal, the IC can destroy.
(4) Actions in strong magnetic field
Use caution when using the IC in the presence of a strong magnetic field as doing so may cause the IC to malfunction.
(5) Mutual impedance
Use short and wide wiring tracks for the power supply and ground to keep the mutual impedance as small as
possible .Use a capacitor to keep ripple to a minimum.
(6) About warm-up time
Operation depends on a power-supply voltage and an external constant for time until stabilizing. Please confirm
warm-up time enough when you use it.
(7) PCB design considerations
To reduce the noise from OUTPUT to INPUT , COMP_IN(11pin) and D_OUT(12pin) and T_OUT(13pin) lines away
from Pyro Sensor and A1P_IN(4pin).
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© 2011 ROHM Co., Ltd. All rights reserved.
7/8
2011.10 - Rev.A
Technical Note
BD9251FV
●Ordering part number
B
D
9
Part No.
2
5
1
F
Part No.
V
-
Package
FV: SSOP-B14
E
2
Packaging and forming specification
E2: Embossed tape and reel
SSOP-B14
<Tape and Reel information>
5.0 ± 0.2
8
0.3Min.
4.4 ± 0.2
6.4 ± 0.3
14
1
Tape
Embossed carrier tape
Quantity
2500pcs
Direction
of feed
E2
The direction is the 1pin of product is at the upper left when you hold
( reel on the left hand and you pull out the tape on the right hand
)
7
0.10
1.15 ± 0.1
0.15 ± 0.1
0.65
0.1
0.22 ± 0.1
1pin
Reel
(Unit : mm)
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8/8
Direction of feed
∗ Order quantity needs to be multiple of the minimum quantity.
2011.10 - Rev.A
Datasheet
Notice
Precaution on using ROHM Products
1.
Our Products are designed and manufactured for application in ordinary electronic equipments (such as AV equipment,
OA equipment, telecommunication equipment, home electronic appliances, amusement equipment, etc.). If you
(Note 1)
, transport
intend to use our Products in devices requiring extremely high reliability (such as medical equipment
equipment, traffic equipment, aircraft/spacecraft, nuclear power controllers, fuel controllers, car equipment including car
accessories, safety devices, etc.) and whose malfunction or failure may cause loss of human life, bodily injury or
serious damage to property (“Specific Applications”), please consult with the ROHM sales representative in advance.
Unless otherwise agreed in writing by ROHM in advance, ROHM shall not be in any way responsible or liable for any
damages, expenses or losses incurred by you or third parties arising from the use of any ROHM’s Products for Specific
Applications.
(Note1) Medical Equipment Classification of the Specific Applications
JAPAN
USA
EU
CHINA
CLASSⅢ
CLASSⅡb
CLASSⅢ
CLASSⅢ
CLASSⅣ
CLASSⅢ
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[a] Installation of protection circuits or other protective devices to improve system safety
[b] Installation of redundant circuits to reduce the impact of single or multiple circuit failure
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[a] Use of our Products in any types of liquid, including water, oils, chemicals, and organic solvents
[b] Use of our Products outdoors or in places where the Products are exposed to direct sunlight or dust
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H2S, NH3, SO2, and NO2
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[h] Use of the Products in places subject to dew condensation
4.
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5.
Please verify and confirm characteristics of the final or mounted products in using the Products.
6.
In particular, if a transient load (a large amount of load applied in a short period of time, such as pulse. is applied,
confirmation of performance characteristics after on-board mounting is strongly recommended. Avoid applying power
exceeding normal rated power; exceeding the power rating under steady-state loading condition may negatively affect
product performance and reliability.
7.
De-rate Power Dissipation (Pd) depending on Ambient temperature (Ta). When used in sealed area, confirm the actual
ambient temperature.
8.
Confirm that operation temperature is within the specified range described in the product specification.
9.
ROHM shall not be in any way responsible or liable for failure induced under deviant condition from what is defined in
this document.
Precaution for Mounting / Circuit board design
1.
When a highly active halogenous (chlorine, bromine, etc.) flux is used, the residue of flux may negatively affect product
performance and reliability.
2.
In principle, the reflow soldering method must be used; if flow soldering method is preferred, please consult with the
ROHM representative in advance.
For details, please refer to ROHM Mounting specification
Notice - GE
© 2014 ROHM Co., Ltd. All rights reserved.
Rev.002
Datasheet
Precautions Regarding Application Examples and External Circuits
1.
If change is made to the constant of an external circuit, please allow a sufficient margin considering variations of the
characteristics of the Products and external components, including transient characteristics, as well as static
characteristics.
2.
You agree that application notes, reference designs, and associated data and information contained in this document
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This Product is electrostatic sensitive product, which may be damaged due to electrostatic discharge. Please take proper
caution in your manufacturing process and storage so that voltage exceeding the Products maximum rating will not be
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isolation from charged objects, setting of Ionizer, friction prevention and temperature / humidity control).
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1.
Product performance and soldered connections may deteriorate if the Products are stored in the places where:
[a] the Products are exposed to sea winds or corrosive gases, including Cl2, H2S, NH3, SO2, and NO2
[b] the temperature or humidity exceeds those recommended by ROHM
[c] the Products are exposed to direct sunshine or condensation
[d] the Products are exposed to high Electrostatic
2.
Even under ROHM recommended storage condition, solderability of products out of recommended storage time period
may be degraded. It is strongly recommended to confirm solderability before using Products of which storage time is
exceeding the recommended storage time period.
3.
Store / transport cartons in the correct direction, which is indicated on a carton with a symbol. Otherwise bent leads
may occur due to excessive stress applied when dropping of a carton.
4.
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Notice - GE
© 2014 ROHM Co., Ltd. All rights reserved.
Rev.002
Datasheet
General Precaution
1. Before you use our Pro ducts, you are requested to care fully read this document and fully understand its contents.
ROHM shall n ot be in an y way responsible or liabl e for fa ilure, malfunction or acci dent arising from the use of a ny
ROHM’s Products against warning, caution or note contained in this document.
2. All information contained in this docume nt is current as of the issuing date and subj ect to change without any prior
notice. Before purchasing or using ROHM’s Products, please confirm the la test information with a ROHM sale s
representative.
3.
The information contained in this doc ument is provi ded on an “as is” basis and ROHM does not warrant that all
information contained in this document is accurate an d/or error-free. ROHM shall not be in an y way responsible or
liable for an y damages, expenses or losses incurred b y you or third parties resulting from inaccur acy or errors of or
concerning such information.
Notice – WE
© 2014 ROHM Co., Ltd. All rights reserved.
Rev.001
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