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BD9759MWV 데이터시트 PDF




ROHM Semiconductor에서 제조한 전자 부품 BD9759MWV은 전자 산업 및 응용 분야에서
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부품번호 BD9759MWV 기능
기능 7-Channel Switching Regulator Controller
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BD9759MWV 데이터시트, 핀배열, 회로
1/4
Structure
Silicon Monolithic Integrated Circuit
Product Series 7-Channel Switching Regulator Controller for Digital Camera
Type BD9759MWV
Package
Fig.1
Pin Assignment Fig.2
Block Diagram Fig.3
Application Fig.4
Function
3.3V minimum input operating
Contains cross converter(1ch),step-down converter(3ch),inverting(1ch),step-up converter(1ch),step-up converter for LED(1ch),
Contains LDO(1ch),constant current driver for LED(1ch)
Contains load switch for step-up converter
Contains output interception circuit when over load
It is possible separately control except CH1,CH2,CH3
Thermally enhanced UQFN056V7070 package(7mm x 7mm, 0.4mm pitch)
○ Absolute maximum ratings(Ta=25℃)
Parameter
Power Supply Voltage
Power Input Voltage
Symbol
VCC,PVCC
PVCCH,PVCCL
HX2,3,4
LX11
VOUT1,LX12
LX6,7
Limits
-0.3~12
-0.3~15
-0.3~12
-0.3~12
-0.3~7
-0.3~20
Units
V
V
V
V
V
V
SWIN6,7
-0.3~20
V
REGIN,LEDIN
-0.3~12
V
Power Dissipation
Pd
420(*1)
930(*2)
mW
mW
Operating Temperature
Topr
-25~+85
Junction Temperature
Tstg
-55~+150
(*1)Without external heat sink, the power dissipation reduces by 4.2mW/℃ over 25℃.
(*2) Reduced by 9.3mW/℃ over 25℃, when mounted on a PCB (70.0mm×70.0mm×1.6mm).
Recommended operating conditions
○ Recommended operating conditions
Parameter
Symbol
Limits
MIN TYP MAX
Units
VREF Pin Connecting Capacitor
CVREF
0.47 1.0 4.7
μF
VREGA Pin Connecting Capacitor
CVREGA
0.47
1.0
4.7
μF
SCP Pin Connecting Capacitor
CSCP
0.001 -
2.2
μF
REGOUT Pin Connecting Capacitor
CREGOUT
0.47
1.0
10
μF
LEDOUT Pin Connecting Capacitor
CLEDOUT
0.47
1.0
10
μF
【Oscillator】
Oscillator Frequency
Fosc
0.6 1.2
1.5 MHz
OSC Timing Resistor RT 47 68 120 kΩ
【Driver】
LX11 Pin Input Voltage VLX11
- - 10
V
CH1 Output set up area VVOUT1 3.9 - 5.5
V
HX2,3,4 Pin Input Voltage VHX2,3,4
10
V
CH1 Output Current
Ioutch1
1
A
CH2 Output Current
Ioutch2
- 600
mA
CH3,4 Output Current Ioutch3,4 -
- 500
mA
CH6 Output Current
Ioutch6
- 100
mA
CH7 Output Current
Ioutch7
50
mA
【SW Circuit】
SWOUT6 Pin Source Current
ISWOUT6
- 100
mA
SWOUT7 Pin Source Current
ISWOUT7
50
mA
◎ It is strongly recommended that a capacitor be connect to VREF,VREGA pin to prevent oscillation.
※)The IC may not operate correctly by an unsettled state of the internal logic when voltage
is applied on VCC rapidly while STB pin is ON. Make sure STB pin is OFF in this case.
○ Recommended operating conditions
Parameter
Symbol
Limit
Unit
Power Supply Voltage
VCC,PVCC
PVCCL
PVCCH
3.3 ~ 10
3.75 ~ 14
VCC+3.75 ~ 14
V
V
V
Status of this document
The Japanese version of this document is the official specification. Please use the translation version of this document as a reference to expedite understanding of the official version.
If these are any uncertainty in translation version of this document, official version takes priority.
REV. A




BD9759MWV pdf, 반도체, 판매, 대치품
4/4
Operation Notes
1.) Absolute maximum ratings
This product is produced with strict quality control. However, the IC may be destroyed if operated beyond its absolute
maximum ratings. If the device is destroyed by exceeding the recommended maximum ratings, the failure mode will be difficult
to determine. (E.g. short mode, open mode) Therefore, physical protection counter-measures (like fuse) should be implemented
when operating conditions beyond the absolute maximum ratings anticipated.
2.) GND potential
Make sure GND is connected at lowest potential. All pins except NON5, must not have voltage below GND. Also, NON5 pin must
not have voltage below - 0.3V on start up.
3.) Setting of heat
Make sure that power dissipation does not exceed maximum ratings.
4.) Pin short and mistake fitting
Avoid placing the IC near hot part of the PCB. This may cause damage to IC. Also make sure that the output-to-output and output
to GND condition will not happen because this may damage the IC.
5.) Actions in strong magnetic field
Exposing the IC within a strong magnetic field area may cause malfunction.
6.) Mutual impedance
Use short and wide wiring tracks for the main supply and ground to keep the mutual impedance as small as possible. Use inductor
and capacitor network to keep the ripple voltage minimum.
7.) Voltage of STB pin
The threshold voltages of STB pin are 0.3V and 1.5V. STB state is set below 0.3V while action state is set beyond 1.5V.
The region between 0.3V and 1.5V is not recommended and may cause improper operation.
The rise and fall time must be under 10msec. In case to put capacitor to STB pin, it is recommended to use under 0.01μF.
8.) Thermal shutdown circuit (TSD circuit)
The IC incorporates a built-in thermal shutdown circuit (TSD circuit). The thermal shutdown circuit (TSD circuit) is designed only
to shut the IC off to prevent runaway thermal operation. It is not designed to protect the IC or guarantee its operation. Do not
continue to use the IC after operating this circuit or use the IC in an environment where the operation of this circuit is assumed.
9.)Rush current at the time of power supply injection.
An IC which has plural power supplies, or CMOS IC could have momentary rush current at the time of power supply injection.
Please take care about power supply coupling capacity and width of power Supply and GND pattern wiring.
10.)IC Terminal Input
This IC is a monolithic IC that has a P- board and P+ isolation for the purpose of keeping distance between elements. A P-N junction
is formed between the P-layer and the N-layer of each element, and various types of parasitic elements are then formed.
For example, an application where a resistor and a transistor are connected to a terminal (shown in Fig.15):
○When GND > (terminal A) at the resistor and GND > (terminal B) at the transistor (NPN), the P-N junction operates as
a parasitic diode.
○When GND > (terminal B) at the transistor (NPN), a parasitic NPN transistor operates as a result of the NHayers of other
elements in the proximity of the aforementioned parasitic diode.
Parasitic elements are structurally inevitable in the IC due to electric potential relationships. The operation of parasitic elements
Induces the interference of circuit operations, causing malfunctions and possibly the destruction of the IC. Please be careful not to
use the IC in a way that would cause parasitic elements to operate. For example, by applying a voltage that is lower than the
GND (P-board) to the input terminal.
Resistor
Terminal A
Transistor (NPN)
Terminal BC
B
E
P
N
P
N
P
N
P-board Parasitic element
P
N
P
N
P-board
Parasitic element GND
GND
P
N
TerminalA)
GND
Parasitic element
Fig . 3 Simplified structure of a Bipolar IC
REV. A

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관련 데이터시트

부품번호상세설명 및 기능제조사
BD9759MWV

7-Channel Switching Regulator Controller

ROHM Semiconductor
ROHM Semiconductor

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