System Power Supply ICs for TVs
Built-in FET
Synchronous Rectification Type
DC/DC converters H3RegTM Type
BD95830MUV
No.11034EBT08
●Description
BD95830MUV is a 2ch switching regulator that can generate low output voltages (0.8V to 5.5V) at the large input voltage
range (7.5 to 15V). Space-saving and high efficient switching regulator can be achieved due to built-in N-MOSFET power
3
TM
transistor. The IC also incorporates a new technology called H Reg , a Rohm proprietary control method which facilitates
ultra-high transient response against changes in load. For protection and ease of use, the IC also incorporates soft start, and
short circuit protection with timer latch functions. This switching regulator is designed for power supplies for Digital AV
Equipments.
●Features
3
TM
1) 2ch H Reg DC/DC converter synchronous controller
2) Built-in N-MOSFET (High side:75mΩ, Low side:50mΩ)
3) Built-in Thermal Shut Down (TSD), Under-Voltage Lock-Out (UVLO),
Adjustable Over Current Protection (OCP) : detected Low side FET Ron,
Over Voltage Protection (OVP), Short Circuit Protection (SCP)
4) Soft start function to minimize rush current during startup
5) VQFN032V5050 package
6) Built-in 5V power supply for FET drive
7) Integrated bootstrap diode
8) Switching frequency : 400kHz～800kHz（depend on input-output condition）
●Applications
LCD-TV, PDP-TV, Set Top Box, Game Consoles, Desktop PCs
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
1/13
2011.05 - Rev.B
Technical Note
BD95830MUV
●Maximum Absolute Ratings (Ta=25℃)
Parameter
Symbol
Ratings
Unit
Input Voltage
VIN1, VIN2, VINS
15.1 *1*2
V
BOOT Voltage
BOOT1,BOOT2
21.1 *1*2
V
BOOT-SW Voltage
Output Voltage
Output Feedback Voltage
BOOT1-SW1, BOOT2-SW2
VOUT1, VOUT2
FB1, FB2
7
*1*2
V
7
*1*2
V
VREG
V
*1*2
V
V
VREG Voltage
VREG
7
VCC Voltage
VCC
VREG
Logic Input Voltage
Power Dissipation 1
Power Dissipation 2
Power Dissipation 3
EN1, EN2
*1*2
V
0.38
*3
W
0.88
*4
W
3.26
*5
W
4.56
*6
W
15.1
Pd1
Pd2
Pd3
Power Dissipation 4
Pd4
Operating Temperature Range
Topr
-20～+100
℃
Storage Temperature Range
Tstg
-55～+150
℃
Tjmax
+150
℃
Maximum Junction Temperature
*1
*2
*3
*4
Not to exceed Pd.
Instantaneous surge voltage, back electromotive force and voltage under less than 10% duty cycle.
Reduced by 3.04mW/℃ for each increase in Ta of 1℃ over 25℃ (when don’t mounted on a heat radiation board )
Reduced by 7.04mW/℃ for increase in Ta of 1℃ over 25℃.
(when mounted on a board 74.2mm×74.2mm×1.6mm Glass-epoxy PCB(1 layer), copper foil area : 20.2mm2)
*5 Reduced by 26.11mW/℃ for increase in Ta of 1℃ over 25℃.
(when mounted on a board 74.2mm×74.2mm×1.6mm Glass-epoxy PCB(4 layer), copper foil area: 20.2mm2, 2-3layer: 5505mm2)
*6 Reduced by 36.5mW/℃ for increase in Ta of 1℃ over 25℃.
(when mounted on a board 74.2mm×74.2mm×1.6mm Glass-epoxy PCB(4 layer), copper foil area: 5505mm2)
●Operating Conditions (Ta=25℃)
Parameter
Ratings
Symbol
Min.
Max.
Unit
Input Voltage
VIN1, VIN2, VINS
7.5
15
V
BOOT Voltage
BOOT1, BOOT2
4.5
21
V
SW1, SW2
-0.7
15
V
BOOT-SW Voltage
BOOT1-SW1, BOOT2-SW2
4.5
5.5
V
Logic Input Voltage
EN1, EN2
0
15
V
Output Voltage
VOUT1, VOUT2
0.8
5.5
V
MIN ON TIME
tonmin
-
100
ns
SW Voltage
☆This product should not be used in a radioactive environment.
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
2/13
2011.05 - Rev.B
Technical Note
BD95830MUV
●Electrical Characteristics
(Unless otherwise noted, Ta=25℃ VCC=VREG, VIN1=VIN2=VINS=12V, VEN1=VEN2=3V, VOUT1=VOUT2=1.8V)
Limit
Parameter
Symbol
Unit
Condition
Min.
Typ.
Max.
[Whole Device]
VIN Bias Current
IIN
-
1.7
2.2
mA
VIN Standby Current
IIN_stb
-
0
10
µA
EN Low Voltage 1,2
VEN_low1,2
GND
-
0.3
V
EN High Voltage 1,2
VEN_high1,2
2.2
-
15
V
REN1,2
28
48
68
kΩ
VREG Standby Voltage
VREG_stb
-
-
0.1
V
VEN1=VEN2=0V
VREG Output Voltage
VREG
4.8
5.0
5.2
V
VINS=7.5V to 15V
IREG=10mA
Maximum Current
IREG
10
-
-
mA
UVLO Threshold Voltage
VCC_UVLO
4.0
4.3
4.6
V
UVLO Hysteresis Voltage
DVCC_UVLO
100
160
220
mV
OVP Threshold Voltage 1,2
VOVP
0.86
0.96
1.06
V
OVP delay time
tOVP
-
1.4
-
ms
ton1
200
255
310
ns
toffmin1
300
550
-
ns
High side FET ON Resistance 1,2
RON_high1,2
-
75
120
mΩ
Low side FET ON Resistance 1,2
RON_low1,2
-
50
75
mΩ
Ilim1,2
3
4
5
A
FB threshold Voltage1,2
VFB1,2
0.788
0.8
0.812
V
Soft Start Time1,2
TSOFT1
-
1.3
-
ms
IFB1,2
-1
-
1
µA
IVOUT1,2
5
10
-
mA
Vthscp1,2
0.48
0.56
0.64
V
tSVP
-
1.4
-
ms
EN Pull-down resistance1,2
VEN1=VEN2=0V
[5V Regulator]
[Under-Voltage Lock-Out]
VREG:Sweep up
VREG:Sweep down
[OVP Block]
[H3RegTM Control Block]
ON Time1,2
MIN OFF Time 1,2
[FET Driver Block]
[Over Current Protection Block]
Current Limit 1,2
[Output Voltage Detection Block]
FB Input Current 1,2
VOUT Discharge Current 1,2
VOUT=1V, VEN=0V
VCC=5V
[SCP Block]
SCP Threshold Voltage 1,2
SCP delay time
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
3/13
2011.05 - Rev.B
Technical Note
BD95830MUV
●Block Diagram
VIN
VREG
VINS
4
3
VOUT1
VREG
BOOT1
VOUT1
25
23
EN1
EN2
EN1/UVLO
EN1
UVLO
Soft
Start
H3RegTM
Controller
Block
SS1
REF1
SS1
FB1
22
VREG
5VReg
R
Driver
OCP1 Circuit
Q
S
UVLO
OCP1
SCP
TSD
17
REF1
SCP
UVLO
UVLO
REF2
BG
Delay
OVP2
VOUT2
TSD
+
-
0.56V
+
-
0.56V
FB2
0.96V
FB2
FB1
EN2
VREG
BOOT2
+
16
-
VIN
VOUT2
VINS
18
PGND1
EN1
OVP
Thermal
Protection
29
30
31
OVP1
EN2
VOUT1
SW1
+
0.96V
FB1
VCC
Reference
Block
VIN
SW1
OVP
5
24
VREG
26
27
28
VIN1
+
+
-
VREG
EN1
1
2
32
7
8
9
VIN2
13
14
15
SW2
10
11
12
PGND2
EN2/UVLO
3
EN2
UVLO
Soft
Start
SS2
FB2
R
OCP2
S
Circuit
VOUT2
VREG
+
-+
OVP
UVLO
OCP2
SCP
TSD
6, 20
Q
SW2
REF2
SS2
19
Driver
TM
H Reg
Controller
Block
21
GND
TEST
●Pin Function
PIN
PIN
No.
Name
Sense GND.
VIN2
Power Supply Voltage Input Pin for 2ch.
EN2
GND
7-9
VOUT2
6,20
FB2
5V Power Supply Input Pin.
GND
VCC
TEST
VREG
5
FB1
VINS
Power Supply Voltage Input Pin for 1ch.
Power Supply Voltage Sense Pin.
Input Pin for VREG.
Reference Voltage Inside IC.
VOUT1
VIN1
3
24
23
22
21
20
19
18
17
4
BOOT1 25
16 BOOT2
PIN Function
1,2,32
EN1
●Pin Configuration
SW1 26
15 SW2
SW1 27
14 SW2
10-12 PGND2
Power GND for 2ch.
SW1 28
13 SW2
High side FET Source Pin 2.
13-15
SW2
PGND1 29
12 PGND2
16
BOOT2
PGND1 30
11 PGND2
17
EN2
PGND1 31
10 PGND2
18
VOUT2
9 VIN2
19
FB2
Output Voltage Feedback Pin 2.
21
TEST
Pin for TEST. Connect to GND.
1
2
3
4
5
6
7
8
VIN1
VIN1
VINS
VREG
VCC
GND
VIN2
VIN2
VIN1 32
22
FB1
23
VOUT1
24
EN1
25
BOOT1
26-28
SW1
29-31 PGND1
reverse
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
4/13
FIN
High side FET Gate Driver Power Supply Pin 2.
Enable Input Pin 2.
(0～0.3V:OFF, 2.2～15V:ON).
Output Voltage Sense / Discharge Pin 2.
Output Voltage Feedback Pin 1.
Output Voltage Sense / Discharge Pin 1.
Enable Input Pin 1.
(0～0.3V:OFF, 2.2～15V:ON).
High side FET Gate Driver Power Supply Pin 1.
High side FET Source Pin 1.
Power GND for 1ch.
Exposed Pad, Connect to GND.
2011.05 - Rev.B
Technical Note
BD95830MUV
●Pin Descriptions
・EN1 / EN2
When the input voltage on the EN pin reaches at least 2.2V, the switching regulator becomes active. At voltages less
than 0.3 V, the switching regulator becomes inactive, and the input current drops to 10µA or less. Thus the IC can be
controlled from 2.5V, 3.3V or 5V power supplies.
・VINS
The IC determines the duty cycles internally based upon the input voltage on this pin. Therefore, variations in voltage on
this pin can lead to highly unstable operation. This pin also acts as the voltage input to the internal switching regulator
block, and is sensitive to the impedance of the power supply. Attaching a bypass capacitor or RC filter on this pin as
appropriate for the application is recommended.
・VREG
Reference voltage output pin. If at least 2.2V is supplied to either the EN1 or EN2 pin, the reference output is switched on.
This pin supplies 5.0V at up to 10mA. Inserting a 2.2µF capacitor (with a X5R or X7R rating) between the VREG and
GND pins is recommended.
・VCC
This is the power supply pin for all internal circuitry. This pin can be supplied directly by a 5V source, or connect with the
VREG pin.
・GND
This is the ground pin for all internal analog and digital power supplies.
・VOUT1 / VOUT2
This is the output voltage sense pin; this pin features an integrated discharge FET used to discharge the output capacitor
when status is set to OFF.
・FB1 / FB2
This is the output feedback pin. FB is compared with REF (Refer to p.8) of IC. Set the output voltage with total about
10kΩ resistances.
・VIN1 / VIN2
This is the input voltage pin for Power supply. Connect a input capacitor as appropriate for the ripple current and the load
to the pin directly.
・BOOT1 / BOOT2
This pin supplies voltage used for driving the high-side FET. Inserting a 0.1µF ceramic capacitor between the pin and SW
pins is recommended. Maximum absolute ratings are 21V from GND and 5.5V from SW. BOOT voltage swings between
(VIN + VREG) and VREG during active operation.
・SW1 / SW2
This pin is connected to inductor (L). Maximum absolute rating is 15V from GND. SW voltage swings between VIN and
PGND.
・PGND1 / PGND2
This pin acts as the ground connection to the source of the low-side FET.
・TEST
This is the pin for TEST. Connect to GND Pin.
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
5/13
2011.05 - Rev.B
Technical Note
BD95830MUV
●Explanation of Operation
3
TM
The BD95830MUV is a 2ch switching regulator controller incorporating ROHM’s proprietary H Reg CONTROLLA control
system. When VOUT drops due to a rapid load change, the system quickly restores VOUT by extending the ON time interval.
H3RegTM control
(Normal operation)
When FB falls below the threshold voltage (REF), a drop is
detected, activating the H3RegTM CONTROLLA system.
FB
REF
tON= VOUT × 1
f
VIN
[sec]・・・(1)
HG
HG(Gate of High side FET) output is determined by the
formula above.
LG(Gate of Low side FET) output operates until FB
voltage falls below REF voltage after HG becomes OFF.
LG
(VOUT drops due to a rapid load change)
When FB (VOUT) drops due to a rapid load change, and
the voltage remains below REF after the frequency
becomes high, the system quickly restores VOUT by
extending the tON time, improving transient response.
FB
REF
IOUT
HG
LG
●Timing Chart
・Soft Start Function
Soft start is utilized when the EN pin is set high. Current
control takes effect at startup, enabling a moderate
“ramping start” on the output voltage. Soft start time is
1.3ms (typ). And rush current is determined via formula
(2) below.
EN
1.3ms
REF
Rush current
IIN=
VOUT
Co×VOUT
1.3ms
[A] ・・・(2)
(Co: All capacitors connected with VOUT)
IIN
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
6/13
2011.05 - Rev.B
Technical Note
BD95830MUV
●External Component Selection
1. Inductor (L) selection
The inductance value has a major influence on output ripple current.
As formula (3) below indicates, the greater the inductance or
switching frequency, the lower the ripple current.
ΔIL
[A]・・・(3)
L×VIN×f
The proper output ripple current setting is about 30% of maximum
output current.
VIN
IL
HG
(VIN -VOUT)×VOUT
ΔIL=
ΔIL=0.3×IOUTmax. [A]・・・(4)
VOUT
SW
L
L=
Co
LG
(VIN -VOUT)×VOUT
ΔIL×VIN×f
[H]・・・(5)
(ΔIL: output ripple current, f: switching frequency)
Output Ripple Current
※Passing a current larger than the inductor’s rated current will cause magnetic saturation in the inductor and decrease
system efficiency. When selecting an inductor, be sure to allow enough margin to assure that peak current does not
exceed the inductor’s rated current value.
※To minimize possible inductor damage and maximize efficiency, choose a inductor with a low (DCR, ACR) resistance.
2. Output Capacitor (COUT) Selection
VIN
HG
VOUT
SW
L
ESR
Load
LG
CEXT
Output Capacitor (COUT) has a considerable influence on output
voltage regulation due to a rapid load change and smoothing output
ripple voltage. Determine the capacitor by considering the value of
capacity, the equivalent series resistance, and equivalent series
inductance. Also, make sure the capacitor’s voltage rating is high
enough for the set output voltage (including ripple).
Output ripple voltage is determined as in formula (6) below.
ESL
ΔVOUT=ΔIL/(8×COUT×f)+ESR×ΔIL +ESL×ΔIL / TON・・・(6)
COUT
Output Capacitor
(ΔIL: Output ripple current; ESR: Equivalent series resistance,
ESL: Equivalent series inductance)
Also, give due consideration to the conditions in formula (7) below for output capacitance, bearing in mind that output rise
time must be established within the soft start time frame. As output capacitor capacitance, bypass capacitor will be
connected to output load side (CEXT, figure above). Please set the over current detection value with regards to these
capacitance.
1.3ms×(Limit-IOUT)
COUT≦
VOUT
・・・(7)
Limit: Over current detection
IOUT: Output current
Note: an improper output capacitor may cause startup malfunctions.
3. Input Capacitor (CIN) Selection
In order to prevent transient spikes in voltage, the input capacitor selected must have
a low enough ESR resistance to fully support a large ripple current on the output.
The formula for ripple current IRMS is given in equation (8) below:
VIN
CIN
HG
VOUT
SW
L
IRMS=IOUT×
√VOUT (VIN -VOUT)
[A]・・・(8)
VIN
COUT
LG
Where VIN =2×VOUT, IRMS=
IOUT
2
Input Capacitor
A low-ESR capacitor is recommended to reduce ESR loss and maximize efficiency.
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
7/13
2011.05 - Rev.B
Technical Note
BD95830MUV
4. Output Voltage Setting
The IC will try to maintain output voltage such that REF≒VFB.
However, the actual output voltage will also reflect the average ripple voltage value.
The output voltage is set via a resistive voltage divider between the output and the FB pin. The formula for output voltage
is given in (9) below:
Output voltage =
R1+R2
R2
× REF +ΔVOUT [V] ・・・(9)
REF = 0.8 – (ON duty × 0.1) [V]
ON duty =
VOUT
VIN
・・・(10)
・・・(11)
VIN
REF
H3RegTM
CONTROLLA
R
Q
Output voltage
Driver
Circuit
S
ESR
FB
R1
R2
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
8/13
2011.05 - Rev.B
Technical Note
BD95830MUV
5. Relationship between output voltage and Ton duration
Both 1ch and 2ch of BD95830MUV are synchronous rectification type of switching controllers operated at fixed-frequency.
The Ton duration for each channel depends on the output voltage settings, as described by the following formulas.
VOUT
VIN
TON =
×1.34µ+70n [ns]・・・(12)
Thus from the above Ton duration, the frequency of the applied condition is
Frequency =
VOUT
VIN
1
TON
×
[kHz]・・・(13)
However with actual applications, there exists a rising and falling time of the SW and the switching speed, which may vary
the above parameters. Thus please also verify those parameters experimentally.
700
Frequency [kHz]
650
600
550
500
VIN=8V
VIN=12V
VIN=15V
450
400
1
2
3
4
5
VOUT [V]
6. Relationship between output current and frequency
BD95830MUV is a fixed-Ton type of switching controller. When the output current increases, the switching loss of the coil
and MOSFET also increases and hence the switching frequency speeds up.
The loss of the coil and MOSFET is determined as
IOUT2 × DCR
①
Loss of coil =
②
2
Loss of high-side MOSFET = IOUT × Ronh ×
③
Loss of low-side MOSFET = IOUT2 × Ronh × (1 -
VOUT
VIN
VOUT
VIN
)
(Ronh : On-resistance of high-side MOSFET, Ronn : On resistance of low-side MOSFET,
ESR : COUT Equivalent series resistance)
Taking the above losses into the frequency equation, then T (=1/Freq) becomes
T (=1/Freq) =
VIN × IOUT × TON
VOUT × IOUT + ① + ② + ③
・・・(14)
However since the parasitic resistance of the layout pattern exists in actual applications and affects the parameter, please
also verify experimentally.
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
9/13
2011.05 - Rev.B
Technical Note
BD95830MUV
●I/O Equivalent Circuits
EN1, EN2
VREG
VINS
VINS
500kΩ
50kΩ
500kΩ
VREG
BOOT
VCC
FB1, FB2
VOUT1, VOUT2
BOOT1, BOOT2
SW1, SW2
VREG
VIN1, VIN2
VREG
BOOT
VIN
SW
SW
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
10/13
2011.05 - Rev.B
Technical Note
BD95830MUV
●Notes for use
(1) Absolute Maximum Ratings
Use of the IC in excess of absolute maximum ratings (such as the input voltage or operating temperature range) may
result in damage to the IC. Assumptions should not be made regarding the state of the IC (e.g., short mode or open
mode) when such damage is suffered. If operational values are expected to exceed the maximum ratings for the device,
consider adding protective circuitry (such as fuses) to eliminate the risk of damaging the IC.
(2) Power Supply Polarity
Connecting the power supply in reverse polarity can cause damage to the IC. Take precautions when connecting the
power supply lines. An external power diode can be added.
(3) Power Supply Lines
In order to minimize noise, PCB layout should be designed such that separate, low-impedance power lines are routed to
the digital and analog blocks. Additionally, a coupling capacitor should be inserted between all power input pins and the
ground terminal. If electrolytic capacitors are used, keep in mind that their capacitance characteristics are reduced at
low temperatures.
(4) GND voltage
The potential of the GND pin must be the minimum potential in the system in all operating conditions.
(5) Thermal design
Use a thermal design that allows for a sufficient margin for power dissipation (Pd) under actual operating conditions.
(6) Inter-pin Shorts and Mounting Errors
Use caution when orienting and positioning the IC for mounting on printed circuit boards. Improper mounting may result
in damage to the IC. Shorts between output pins or between output pins and the power supply and GND pins caused by
poor soldering or foreign objects may result in damage to the IC.
(7) Operation in Strong Electromagnetic Fields
Using this product in strong electromagnetic fields may cause IC malfunction. Caution should be exercised in
applications where strong electromagnetic fields may be present.
(8) ASO - Area of Safe Operation
When using the IC, ensure that operating conditions do not exceed absolute maximum ratings or ASO of the output
transistors.
(9) Thermal shutdown (TSD) circuit
The IC incorporates a built-in thermal shutdown circuit, which is designed to turn the IC off completely in the event of
thermal overload. It is not designed to protect the IC from damage or guarantee its operation. ICs should not be used
after this function has activated, or in applications where the operation of this circuit is assumed.
TSD ON Temp. [℃]
BD95830MUV
(typ.)
175
Hysteresis Temp. [℃]
(typ.)
15
(10) Testing on application boards
When testing the IC on an application board, connecting a capacitor directly to a low-impedance pin may subject the IC
to stress. Always discharge capacitors completely after each process or step. The IC’s power supply should always be
turned off completely before connecting or removing it from a jig or fixture during the evaluation process. To prevent
damage from static discharge, ground the IC during assembly and use similar precautions during transport and storage.
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
11/13
2011.05 - Rev.B
Technical Note
BD95830MUV
(11) Regarding input pins of the IC
This monolithic IC contains P+ isolation and P substrate layers between adjacent elements in order to keep them
isolated. PN junctions are formed at the intersection of these P layers with the N layers of other elements, creating
parasitic diodes and/or transistors. For example (refer to the figure below):
・When GND > Pin A and GND > Pin B, the PN junction operates as a parasitic diode
・When GND > Pin B, the PN junction operates as a parasitic transistor
Parasitic diodes occur inevitably in the structure of the IC, and the operation of these parasitic diodes can result in
mutual interference among circuits, operational faults, or physical damage. Accordingly, conditions that cause these
diodes to operate, such as applying a voltage lower than the GND voltage to an input pin (and thus to the P substrate)
should be avoided.
Resistor
Transistor (NPN)
Pin A
Pin B
Pin B
B
C
Pin A
N P
+
N
P+
P
N
N
P substrate
Parasitic element
E
P
Parasitic
element
GND
B
N
P+
P+
N
P substrate
GND
Parasitic element
GND
C
E
Parasitic
element
Other adjacent elements
GND
Example of IC structure
(12) Ground Wiring Pattern
When using both small-signal and large-current GND traces, the two ground traces should be routed separately but
connected to a single ground potential within the application in order to avoid variations in the small-signal ground
caused by large currents. Also ensure that the GND traces of external components do not cause variations on GND
voltage.
●Power Dissipation
(VQFN032V5050)
5.5
5.0
④4.56W
① IC Only
θj-a=328.9℃/W
② IC mounted on 1-layer board (with 20.2 mm2 copper thermal pad)
θj-a=142.0℃/W
③ IC mounted on 4-layer board (with 20.2 mm2 pad on top layer,
4.5
Power dissipation:Pd [W]
4.0
2
5502 mm pad on layers 2,3)
θj-a=38.3℃/W
② IC mounted on 4-layer board (with 5505mm2 pad on all layers)
θj-a=27.4℃/W
3.5 ③3.26W
3.0
2.5
2.0
1.5
②0.88W
1.0
0.5 ①0.38W
0
0
20
40
60
80
100
120
Ambient temperature :Ta [℃]
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
140
12/13
2011.05 - Rev.B
Technical Note
BD95830MUV
●Type Designations (Selections) for Ordering
B
D
9
Part No.
5
8
3
0
M
Part No.
U
V
-
Package
MUV : VQFN032V5050
E
2
Packaging and forming specification
E2: Embossed tape and reel
VQFN032V5050
5.0 ± 0.1
5.0±0.1
1.0MAX
3.4±0.1
0.4 ± 0.1
1
8
9
32
16
25
24
0.75
0.5
2500pcs
E2
The direction is the 1pin of product is at the upper left when you hold
)
(0.22)
( reel on the left hand and you pull out the tape on the right hand
3.4 ± 0.1
+0.03
0.02 -0.02
S
C0.2
Embossed carrier tape
Quantity
Direction
of feed
1PIN MARK
0.08 S
Tape
17
+0.05
0.25 -0.04
1pin
Reel
(Unit : mm)
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
13/13
Direction of feed
∗ Order quantity needs to be multiple of the minimum quantity.
2011.05 - Rev.B
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
2.
ROHM designs and manufactures its Products subject to strict quality control system. However, semiconductor
products can fail or malfunction at a certain rate. Please be sure to implement, at your own responsibilities, adequate
safety measures including but not limited to fail-safe design against the physical injury, damage to any property, which
a failure or malfunction of our Products may cause. The following are examples of safety measures:
[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
3.
Our Products are designed and manufactured for use under standard conditions and not under any special or
extraordinary environments or conditions, as exemplified below. Accordingly, ROHM shall not be in any way
responsible or liable for any damages, expenses or losses arising from the use of any ROHM’s Products under any
special or extraordinary environments or conditions. If you intend to use our Products under any special or
extraordinary environments or conditions (as exemplified below), your independent verification and confirmation of
product performance, reliability, etc, prior to use, must be necessary:
[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
[c] Use of our Products in places where the Products are exposed to sea wind or corrosive gases, including Cl2,
H2S, NH3, SO2, and NO2
[d] Use of our Products in places where the Products are exposed to static electricity or electromagnetic waves
[e] Use of our Products in proximity to heat-producing components, plastic cords, or other flammable items
[f] Sealing or coating our Products with resin or other coating materials
[g] Use of our Products without cleaning residue of flux (even if you use no-clean type fluxes, cleaning residue of
flux is recommended); or Washing our Products by using water or water-soluble cleaning agents for cleaning
residue after soldering
[h] Use of the Products in places subject to dew condensation
4.
The Products are not subject to radiation-proof design.
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
are presented only as guidance for Products use. Therefore, in case you use such information, you are solely
responsible for it and you must exercise your own independent verification and judgment in the use of such information
contained in this document. 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 such information.
Precaution for Electrostatic
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
applied to Products. Please take special care under dry condition (e.g. Grounding of human body / equipment / solder iron,
isolation from charged objects, setting of Ionizer, friction prevention and temperature / humidity control).
Precaution for Storage / Transportation
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.
Use Products within the specified time after opening a humidity barrier bag. Baking is required before using Products of
which storage time is exceeding the recommended storage time period.
Precaution for Product Label
QR code printed on ROHM Products label is for ROHM’s internal use only.
Precaution for Disposition
When disposing Products please dispose them properly using an authorized industry waste company.
Precaution for Foreign Exchange and Foreign Trade act
Since our Products might fall under controlled goods prescribed by the applicable foreign exchange and foreign trade act,
please consult with ROHM representative in case of export.
Precaution Regarding Intellectual Property Rights
1.
All information and data including but not limited to application example contained in this document is for reference
only. ROHM does not warrant that foregoing information or data will not infringe any intellectual property rights or any
other rights of any third party regarding such information or data. ROHM shall not be in any way responsible or liable
for infringement of any intellectual property rights or other damages arising from use of such information or data.:
2.
No license, expressly or implied, is granted hereby under any intellectual property rights or other rights of ROHM or any
third parties with respect to the information contained in this document.
Other Precaution
1.
This document may not be reprinted or reproduced, in whole or in part, without prior written consent of ROHM.
2.
The Products may not be disassembled, converted, modified, reproduced or otherwise changed without prior written
consent of ROHM.
3.
In no event shall you use in any way whatsoever the Products and the related technical information contained in the
Products or this document for any military purposes, including but not limited to, the development of mass-destruction
weapons.
4.
The proper names of companies or products described in this document are trademarks or registered trademarks of
ROHM, its affiliated companies or third parties.
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
工商网监
湘ICP备2023018690号
