Rohm BD8372HFP-M Led drivers for automotive light Datasheet

Power Management ICs for Automotive Body Control
LED Drivers
for Automotive Light
BD8372HFP-M,BD8372EFJ-M
No.11039EAT13
●Description
BD8372HFP-M and BD8372EFJ-M are a LED source driver with the capability of withstanding high input voltage (50V MAX).
The fixed current output can change in the H/L current, and it is the best for automotive LED drive. It is built into LED
open/short protection, external resistance open/short protection and overvoltage overheating protection and high reliability
can be achieved. When driving two or more LED by using two or more IC, it can be done to control LED all together turning
off even if LED causes short/open in a certain row.
●Features
1) Input voltage range 5.5~40V
2) Changeable type fixed current source driver(200 mA max), Current accuracy ±3%(VIN=13 V, Ta=25℃)
3) H/L Current setting switch control
4) Built-in LED open/short protection circuit
5) Built-in ISET open/short protection circuit
6) Built-in overvoltage overheating protection and temperature protection circuit
7) Error state output detection function (PBUS)
8) HRP7/HTSOP-J8 package
●Applications
For automotive (Lear lamp, Interior light, etc.)
●Absolute maximum ratings (Ta=25℃)
Parameter
Power supply voltage
STOP, IOUT, PBUS terminal
ISETH, ISETL terminal
Power Consumption
Operating temperature range
Storage temperature range
Joint part temperature
IOUT output maximum current
Symbol
Ratings
Unit
VVIN
50
V
VSTOP, VIOUT, VPBUS
50
V
VISETH, VISETL
7
2.3(HRP7)
Pd
V
*1
1.1(HTSOP-J8)*2
W
Topr
-40~125
℃
Tstg
-55~150
℃
Tjmax
150
℃
IIOUT
200
mA
*1 HRP7
IC mounted on glass epoxy 2 layer board, area 15mmx15mm of the back copper foil, measuring 70mm×70mm×1.6mm
less than copper foil share 3%, power dissipated at a rate of 18.4mw/℃ at temperatures above 25℃.
*2 HTSOP-J8
IC mounted on glass epoxy 2 layer board, area 15mmx15mm of the back copper foil, measuring 70mm×70mm×1.6mm
less than copper foil share 3%, power dissipated at a rate of 88mw/℃ at temperatures above 25℃.
●Operating conditions (Ta=-40~+125℃)
〔Please set after considering power consumption for the power-supply voltage.〕
Ratings
Parameter
Symbol
Min.
Typ.
Max.
Power supply voltage
Current setting resistance
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© 2011 ROHM Co., Ltd. All rights reserved.
VIN
Unit
Conditions
V
-
5.5
13
40
RISETH
10k
-
100k
Ω
STOP=H
RISETL
10k
-
100k
Ω
STOP=L
1/16
2011.04 - Rev.A
Technical Note
BD8372HFP-M,BD8372EFJ-M
●Electrical characteristics (unless otherwise specified, Ta=-40~ 125℃ , VIN=13V, R I S ET L =R I S ET H =40kΩ , PBUS=10kΩ )
Parameter
Circuit current
Limits
Symbol
IVIN
IOUT output current different
width H
IOUT_H
IOUT output current different
width L
IOUT_L
Unit
Min.
Typ.
Max.
-
2.9
5
mA
48.5
50
51.5
mA
46
50
54
mA
4.85
5
5.15
mA
4.6
5
5.4
mA
Conditions
50mA setting (ISET=40kΩ)
STOP=High, Ta=25℃
50mA setting (ISET=40kΩ)
STOP=High, Ta=-40~125℃
5mA setting (ISET=40kΩ)
STOP=Low, Ta=25℃
5mA setting (ISET=40kΩ)
STOP=Low, Ta=-40~125℃
200mA setting(ISET=10kΩ)
STOP=High
20mA setting(ISET=10kΩ)
STOP=Low
VIOUT=2V, PBUS=L,
Ta=25℃
IOUT drop voltage H
VDRH_IOUT
-
0.7
1.2
V
IOUT drop voltage L
VDRL_IOUT
-
0.5
0.7
V
IOUT OFF current
IIOUT_OFF
-
-
1
µA
IIOUT_SHORT
-
-
40
µA
VIOUT=0V
IISET
-
0.8
-
µA
ISETH, ISETL
ISET short detection
VISET_SHORT
-
5.1k
7.5k
V
ISETH, ISETL
ISET open detection
VISET_OPEN
125k
400k
-
V
ISETH, ISETL
IOUT LED OPEN detection
VIOUT_OPEN
IOUT current at GND short
ISET current
IOUT LED short detection
VIN-0.3 VIN-0.2 VIN-0.1
V
VIOUT_SHORT
0.2
0.6
1.0
V
STOP input voltage H
VIH_STOP
4.0
-
VIN+0.2
V
STOP input voltage L
VIL_STOP
GND
-
1.0
V
STOP input current
VIN_STOP
-
100
µA
PBUS input voltage H
VIH_PBUS
4.0
-
VIN+0.2
V
PBUS input voltage L
VIL_PBUS
GND
-
2.0
V
PBUS Low voltage
VOL_PBUS
-
-
1.5
V
IPBUS=20mA
PBUS input current
IIN_PBUS
-
38
100
µA
PBUS=13V
VIN Reduce voltage open mask VUVLO_IOPEN
7.5
8.0
8.5
V
VIN Over voltage mute current
16
19
24
V
VIN_OVPMUTE
40
STOP=13V
200mA setting (ISET=10kΩ)
STOP=High
※This product is not designed for use in radioactive environments.
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© 2011 ROHM Co., Ltd. All rights reserved.
2/16
2011.04 - Rev.A
Technical Note
BD8372HFP-M,BD8372EFJ-M
●Package outline
HRP7(Unit:mm)
HTSOP-J8(Unit:mm)
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© 2011 ROHM Co., Ltd. All rights reserved.
3/16
2011.04 - Rev.A
Technical Note
BD8372HFP-M,BD8372EFJ-M
●Block diagram
VIN
IOUT
VREF
STOP
H/L MODE
SET
Current
CONTROL
VREF
LED OPEN
DET
LED GND SHORT
DET
VIN
mode
0.6V
VIN-0.2V
PBUS
PROTECT
led open
VREF
led short
B+
led off
Iref_l
Iref_h
Iref_l
Iref_h
0.8V
0.8V
GND
ISETL
ISETH
RISETH
RISETL
●Pin description
HRP7
No.
Symbol
1
STOP
2
HTSOP-J8
Description
No.
Symbol
Brake light input terminal
1
VIN
PBUS
Error detection I/O terminal
2
IOUT
Current output terminal
3
ISETL
Current setting terminal(L mode)
3
GND
GND
4
GND
GND
4
GND
GND
5
ISETH
Current setting terminal(H mode)
5
STOP
Brake light input terminal
6
VIN
Lighting signal
6
PBUS
Error detection I/O terminal
7
IOUT
Current output terminal
7
ISETL
Current setting terminal(L mode)
8
ISETH
Current setting terminal(H mode)
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© 2011 ROHM Co., Ltd. All rights reserved.
4/16
Description
Lighting signal
2011.04 - Rev.A
Technical Note
BD8372HFP-M,BD8372EFJ-M
●Electrical characteristic curves
HRP7
Pd[W]
5.0
4.5
(2 layer copper foil 50mm×50mm)
4.16W
θja = 30℃/W
4.0
3.5
(2 layer copper foil 15mm×15mm)
θja = 54.4℃/W
3.0
2.3W
2.5
(1 layer)
θja = 78.1℃/W
2.0
1.6W
1.5
1.0
0.5
0.0
0
25
50
75
100
125
150
Ta[℃]
The value of Power consumption:in glass epoxy board
measuring70mm x 70mm x 1.6mmt
HTSOP-J8
Pd[W]
1.8
1.6
(2 layer copper foil 15mm×15mm)
θja = 113.6℃/W
1.4
1.2
1.1W
1.0
(1 layer)θja = 153.2℃/W
0.82W
0.8
0.6
0.4
0.2
0.0
0
25
50
75
100
The value of Power consumption:in glass epoxy board
125
150
Ta[℃]
measuring70mm x 70mm x 1.6mmt
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© 2011 ROHM Co., Ltd. All rights reserved.
5/16
2011.04 - Rev.A
Technical Note
BD8372HFP-M,BD8372EFJ-M
●Equivalent-circuit diagram of the terminals
Pin No.
Pin name
Equivalent-circuit diagram of the terminals
5V
VIN
(6pin)
1
STOP
STOP
(1pin)
300kΩ
100kΩ
GND
(4pin)
VIN
(6pin)
5V
200kΩ
2
PBUS
PBUS
(28pin)
5V
GND
(4pin)
5V
VIN
(6pin)
5V
3
ISETL
ISETL
(3pin)
GND
(4pin)
4
GND
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© 2011 ROHM Co., Ltd. All rights reserved.
-
6/16
2011.04 - Rev.A
Technical Note
BD8372HFP-M,BD8372EFJ-M
Pin No.
Pin name
Equivalent-circuit diagram of the terminals
5V
VIN
(6pin)
5V
5
ISETH
ISETH
(5pin)
GND
(4pin)
6
VIN
-
VIN
(6pin)
7
IOUT
5V
IOUT
(7pin)
GND
(4pin)
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© 2011 ROHM Co., Ltd. All rights reserved.
7/16
2011.04 - Rev.A
Technical Note
BD8372HFP-M,BD8372EFJ-M
●Function description
(Unless otherwise specified, VIN=13V, RISETL=RISETH=40kΩ, The numerical value in the table has described the TYP value.)
Table for operation
STIOP
VIOUT
RISETL
RISETH
MODE
IOUT_
PBUS
L
2.V<VIOUT<12.3V
10kΩV≦RISETL
≦100kΩ
-
L mode normal
operation
2mA~20mA
Hi-Z
H
2V<VIOUT<11.8V
-
10kΩV≦RISETH
≦100kΩ
H mode normal
operation
20mA~200mA
Hi-Z
L/H
VIOUT≦0.6V
-
-
Output short
40µA(max)
LOW output
L/H
12.8V≦VIOUT
-
-
Output open
L
-
RISETL<7.5kΩ/
125kΩ<RISETL
-
ISETL short /
ISETL open
1µA(max)
LOW output
H
-
-
RISETH<7.5Ω/
125kΩ<RISETH
ISETH short /
ISETH open
1µA(max)
LOW output
L
2.V<VIOUT<12.3V
10kΩV≦RISETL
≦100kΩ
-
PBUS control OFF
1µA(max)
LOW input
H
2.V<VIOUT<11.8V
-
10kΩV≦RISETH
PBUS control OFF
≦100kΩ
1µA(max)
LOW input
1µA(max)
LOW output
Protection mode operation voltage
VIN
LED open
LED short
ISET open
ISET short
PBUS
Overvoltage
protection
5.5V<VIN≦8V
×
○
○
○
○
×
8V≦VIN
○
○
○
○
○
×
19V≦VIN
○
○
○
○
○
○
○:Protection mode effective
×:Protection mode invalidity
The LED open function is masked with VIN≦8V. For the over voltage protection to operate in 18V≦VIN, and the output
current is derating to suppress the generation of heat rise of IC.
Iomax
200mA
Over voltage protection current limit
10mA
0V
13V
19V
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© 2011 ROHM Co., Ltd. All rights reserved.
24V
40V
8/16
VIN
2011.04 - Rev.A
Technical Note
BD8372HFP-M,BD8372EFJ-M
●Timing chart
VIN
VIN
IOUT
Current
Control
STOP
STOP
PBUS
H/Lmode
switch
PBUS
LED
SHORT
LED
OPEN
ISETL ISETH
LED OPEN
LED SHORT
VIN
VIH_STOP
STOP VIL_STOP
IIOUTH
VIOUT
IIOUTL
ISETL
ISETH
PBUS
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© 2011 ROHM Co., Ltd. All rights reserved.
9/16
2011.04 - Rev.A
Technical Note
BD8372HFP-M,BD8372EFJ-M
●Method of setting current
ISETL/ISETH generates a standard Voltage respectively in IC (0.8V typ). A standard current is generated by connecting
resistance with ISET terminal, and the current is converted internally and it outputs.
+B
VIN
IOUT
Current
Control
STOP
H/L mode switch
PBUS
LED
OPEN
Iref_l
Iref_l
GND
ISETL
0.8V(typ)
ISETH
0.8V(typ)
RISETL
RISETH
IOUT Output current VS ISET connect resistance
1.0000
short protection
open protection
0.1000
IOUT[A]
H mo de
L mo de
0.0100
R_ISET setting range
0.0010
1.00E+03
1.00E+04
1.00E+05
1.00E+06
RISET[Ω]
・L mode(STOP=Low)
IIOUT 
・H mode(STOP=High)
0 .8 V
* 250[A]
R ISETL
exp )
R ISETL =1 .6k Ω ٛIIOUT 
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© 2011 ROHM Co., Ltd. All rights reserved.
IIOUT 
0.8V
 250  5[mA]
40k Ω
10/16
0. 8 V
 2500[A]
RISETH
exp) RISETH  40kΩ ٛIIOUT 
0. 8 V
 2500  50 [mA]
40kΩ
2011.04 - Rev.A
Technical Note
BD8372HFP-M,BD8372EFJ-M
●Current control at output saturation
When VIOUT(=VF) exceeds VIN-0.4V, the current is decreased for a set current. Therefore, because VF decreases due to IF
decrease of LED, Threshold VOUT=VIN-0.2V of open detection can be prevented keeping the relation of VIOUT≦VIN-0.4V,
and being exceeded. The current control must become IOUT<20µA and IF must select LED for VF not to exceed
VUVLO_OPEN by 20µA.
VIN
Current
control
-
LED_OPEN
VIN-0.2V
+
IOUT
-
VIN-0.5V
+
Current limit
ISET
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© 2011 ROHM Co., Ltd. All rights reserved.
11/16
2011.04 - Rev.A
Technical Note
BD8372HFP-M,BD8372EFJ-M
●PROTECT BUS (PBUS)
PUBS is an I/O terminal that outputs error and the terminal that detects error. When error occurs because of open/short of
external parts etc. , Low is output from Hi(Hi-Z) with PBUS terminal, and it is possible to detect error from the outside. The
output current can be turned off by controlling. PUBS to Hi→Low from outside. LED of all rows can control turning off even if
open/short circuit of LED occurs because it connects the terminal PUBS of each CH as shown in following figure when
driving two or mode LED by useing two or mode this IC.
VIN
IOUT
STOP
LED
OPEN
PBUS
LED
OFF
PBUS
LED
OFF
GND
ISETH
ISETL
GND
ISETL
PROTECT BUS
IOUT
VIN
STOP
PBUS
ISETH
GND
PBUS=Hi-Z ⇒ LOW
ISETH
ISETL
+B
IOUT
VIN
STOP
・Example of operating protection by LED open
LED Open
VIOUT-OPEN
VIOUT
0
CH1
IIOUT
0
PBUS
Hi-Z
LOW
Hi-Z
clamps to 1.4V
VIOUT
CH2
VIOUT_SHORT
0
IIOUT
0
VIOUT
CH3
VIOUT_SHORT
0
IIOUT
0
PBUS becomes LOW from Hi-Z because of the LED open. Turning off the LED driver of another CH detects error and LED is
controlled by PUBS becomes Low. VIOUT clamps to 1.4V and prevents GND short detection in the matrix at turning off.
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12/16
2011.04 - Rev.A
Technical Note
BD8372HFP-M,BD8372EFJ-M
●Protection function
As for this IC, short/open protection of external parts is built into, and it is possible to detect error with the terminal PUBS.
①LED open detecting function
When LED connected with the terminal IOUT is opened, open
detection is done by the terminal IOUT becomes an overvoltage.
The terminal PBUS is made Low and it informs of error.
+B
OFF
VIN
IOUT
Current
Control
PBUS
②LED short detecting function
When LED connected with the terminal IOUT becomes short, it
detects short by the terminal IOUT becomes a low voltage.
The output current is turned off, the heat destruction of IC is
prevented, the terminal PBUS is made Low, and it informs of
error.
OFF control
Short
0.6V
+B
OFF
VIN
③ISET(H/L) open detecting function
When the external resistance connected with the terminal ISET is
opened, open detection is done
The output current is turned off, PBUS is made Low, and it informs
of error. When it doesn't depend on the mode and either terminal
is opened, the terminal ISET is detected for H mode and for L
mode though it exists by two terminals.
IOUT
Current
Control
PBUS
4.3V
④ISET(H/L) short detecting function
When the external resistance connected with the terminal ISET
becomes short, it detects short
The output is turned off, the overcurrent is prevented,PBUS is
made Low, and it informs of error.
When it doesn't depend on the mode and either terminal becomes
short, the terminal ISET is detected for H mode and for L mode
though it exists by two terminals.
ISET
×
+B
OFF
VIN
IOUT
Current
Control
PBUS
0.05V
ISET
Short
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© 2011 ROHM Co., Ltd. All rights reserved.
13/16
2011.04 - Rev.A
Technical Note
BD8372HFP-M,BD8372EFJ-M
●Pd(Power dissipation) and Iomax (Permissible current)
The relation between Pd and Iomax by VF of LED connected with IOUT is shown.
13.5V
13V
VIN
IOUT
8V~11V
Current
Control
Iomax
VF=11V
VF=10V
VF=9V
VF=8V
HRP7
HPP7
Pd [W]
Iomax
2.30
Iomax [mA]
150
115
Pd
92
0.75
0.60
0.45
0.30
0
25
Ta [℃]
105 117.4 133.7 150
109 125 125.5
VF=11V
HTSOP-J8
VF=9V
VF=8V
Pd [W]
VF=10V
Iomax [mA]
Iomax
1.10
150
132
Pd
110
99
0.75
79.2
73.3
55
44
0.60
0.45
0.30
0
25
65
82
99 105 116 125
150
Ta [℃]
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14/16
2011.04 - Rev.A
Technical Note
BD8372HFP-M,BD8372EFJ-M
●Notes for use
1. Absolute maximum ratings
We are careful enough for quality control about this IC. So, there is no problem under normal operation, excluding that it
exceeds the absolute maximum ratings. However, this IC might be destroyed when the absolute maximum ratings, such
as impressed voltages or the operating temperature range (Topr), is exceeded, and whether the destruction is short circuit
mode or open circuit mode cannot be specified. Please take into consideration the physical countermeasures for safety,
such as fusing, if a particular mode that exceeds the absolute maximum rating is assumed.
2. Reverse polarity connection
Connecting the power line to the IC in reverse polarity (from that recommended) will damage the part. Please utilize the
direction protection device as a diode in the supply line.
3. Power supply line
Please design the power supply line where a large current is thrown to reduce the resistance of the wiring for the power
supply pattern so that there is a possibility of usually influencing operation.
4. GND line
The ground line is where the lowest potential and transient voltages are connected to the IC.
Please confirm whether there is actually terminal that is the voltage of GND or less including transients.
5. Thermal design
Do not exceed the power dissipation (Pd) of the package specification rating under actual operation, and please design
enough temperature margins. This product has exposed the frame to the back side of the package, but please note that it
is assumed to use heat radiation efficiency by the heat radiation for this part. Please take the heat radiation pattern on not
only the surface of the substrate but also the back of the substrate widely.
6. Short circuit mode between terminals and wrong mounting
Do not mount the IC in the wrong direction and displacement, and be careful about the reverse-connection of the power
connector. Moreover, this IC might be destroyed when the dust short the terminals between them or GND.
( The outputs of CH1(pin2,3) have NO protection circuit. So please especially be careful about them.)
7. Radiation
Strong electromagnetic radiation can cause operation failures.
8. TSD (Thermal Shut-Down)
The TSD is activated when the junction temperature (Tj) exceeds Tjmax, and the output terminal is switched to OPEN.
The guarantee and protection of set are not purpose. Therefore, please do not use this IC after TSD circuit operates, nor
use it for assumption that operates the TSD circuit.
9. Inspection by the set circuit board
The stress might hang to IC by connecting the capacitor to the terminal with low impedance. Then, please discharge
electricity in each and all process. Moreover, when attaching or detaching from jig in the inspection process, please turn off
the power before mounting the IC, and turn on after mounting the IC, and vice versa. In addition, please take into
consideration the countermeasures for electrostatic damage, such as giving the earth in assembly process, transportation
or preservation.
10. Input terminal
+
This IC is a monolithic IC, and has P isolation and P substrate for the element separation. Therefore, a parasitic PN
junction is firmed in this P-layer and N-layer of each element. For instance, the resistor or the transistor is connected to the
terminal as shown in the figure below. When the GND voltage potential is greater than the voltage potential at Terminals A
on the resistor, at Terminal B on the transistor, the PN junction operates as a parasitic diode. In addition, the parasitic NPN
transistor is formed in said parasitic diode and the N layer of surrounding elements close to said parasitic diode. These
parasitic elements are formed in the IC because of the voltage relation. The parasitic element operating causes the
interference of circuit operation, then the wrong operation and destruction. Therefore, please be careful so as not to
operate the parasitic elements by impressing to input terminals lower voltage than GND (P substrate). Please do not apply
the voltage to the input terminal when the power-supply voltage is not impressed. Moreover, please impress each input
terminal lower than the power-supply voltage or equal to the specified range in the guaranteed voltage when the
power-supply voltage is impressing.
Resistor
Transistor(NPN)
Terminal-A
Terminal-B
C
Terminal-B
B
E
Terminal-A
B
P+
P+
P
Parasitic
element
C
E
P+
P-Substrate
P
P+
P-Substrate
Surrounding
elements
Parasitic
element
GND
Parasitic
element
Parasitic
element
GND
GND
GND
Example of IC of simple structure
11. About a steep change of the Vcc voltage
There is a possibility of generating a large current because MOS is used for the output transistor when the input voltage
change is steep. Please select external parts after it verifies it enough by a real application including the transition change.
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15/16
2011.04 - Rev.A
Technical Note
BD8372HFP-M,BD8372EFJ-M
●Ordering part number
B
D
8
Part No.
3
7
2
H
F
P
Package
HFP : HRP7
EFJ : HTSOP-J8
Part No.
8372
-
M
T
R
for
Packaging and forming specification
Automotive TR: Embossed tape and reel
(HRP7)
E2: Embossed tape and reel
(HTSOP-J8)
HRP7
<Tape and Reel information>
1.905±0.1
1 2
0.8875
3 4
0.835±0.2
8.0±0.13
(7.49)
8.82±0.1
(6.5)
5 6 7
Tape
Embossed carrier tape
Quantity
2000pcs
Direction
of feed
1.523±0.15
10.54±0.13
1.017±0.2
9.395±0.125
(MAX 9.745 include BURR)
TR
The direction is the 1pin of product is at the upper right when you hold
( reel on the left hand and you pull out the tape on the right hand
)
1pin
+5.5°
4.5° −4.5°
0.08±0.05
+0.1
0.27 -0.05
0.73±0.1
1.27
S
Direction of feed
0.08 S
Reel
(Unit : mm)
∗ Order quantity needs to be multiple of the minimum quantity.
HTSOP-J8
<Tape and Reel information>
+6°
4°
−4°
(2.4)
3.9±0.1
6.0±0.2
8 7 6 5
1
1.05±0.2
(3.2)
0.65±0.15
4.9±0.1
(MAX 5.25 include BURR)
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
)
2 3 4
1PIN MARK
+0.05
0.17 -0.03
1.0MAX
0.545
S
0.08±0.08
0.85±0.05
1.27
+0.05
0.42 -0.04
0.08
M
0.08 S
1pin
Reel
(Unit : mm)
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© 2011 ROHM Co., Ltd. All rights reserved.
16/16
Direction of feed
∗ Order quantity needs to be multiple of the minimum quantity.
2011.04 - Rev.A
Notice
Notes
No copying or reproduction of this document, in part or in whole, is permitted without the
consent of ROHM Co.,Ltd.
The content specified herein is subject to change for improvement without notice.
The content specified herein is for the purpose of introducing ROHM's products (hereinafter
"Products"). If you wish to use any such Product, please be sure to refer to the specifications,
which can be obtained from ROHM upon request.
Examples of application circuits, circuit constants and any other information contained herein
illustrate the standard usage and operations of the Products. The peripheral conditions must
be taken into account when designing circuits for mass production.
Great care was taken in ensuring the accuracy of the information specified in this document.
However, should you incur any damage arising from any inaccuracy or misprint of such
information, ROHM shall bear no responsibility for such damage.
The technical information specified herein is intended only to show the typical functions of and
examples of application circuits for the Products. ROHM does not grant you, explicitly or
implicitly, any license to use or exercise intellectual property or other rights held by ROHM and
other parties. ROHM shall bear no responsibility whatsoever for any dispute arising from the
use of such technical information.
The Products specified in this document are intended to be used with general-use electronic
equipment or devices (such as audio visual equipment, office-automation equipment, communication devices, electronic appliances and amusement devices).
The Products specified in this document are not designed to be radiation tolerant.
While ROHM always makes efforts to enhance the quality and reliability of its Products, a
Product may fail or malfunction for a variety of reasons.
Please be sure to implement in your equipment using the Products safety measures to guard
against the possibility of physical injury, fire or any other damage caused in the event of the
failure of any Product, such as derating, redundancy, fire control and fail-safe designs. ROHM
shall bear no responsibility whatsoever for your use of any Product outside of the prescribed
scope or not in accordance with the instruction manual.
The Products are not designed or manufactured to be used with any equipment, device or
system which requires an extremely high level of reliability the failure or malfunction of which
may result in a direct threat to human life or create a risk of human injury (such as a medical
instrument, transportation equipment, aerospace machinery, nuclear-reactor controller, fuelcontroller or other safety device). ROHM shall bear no responsibility in any way for use of any
of the Products for the above special purposes. If a Product is intended to be used for any
such special purpose, please contact a ROHM sales representative before purchasing.
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obtain a license or permit under the Law.
Thank you for your accessing to ROHM product informations.
More detail product informations and catalogs are available, please contact us.
ROHM Customer Support System
http://www.rohm.com/contact/
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
R1120A
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