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System Power Supply ICs for TVs
Built-in FET
Synchronous Rectification Type
DC/DC converters H
3
Reg
TM
Type
BD95830MUV
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
transistor. The IC also incorporates a new technology called H
3
Reg
TM
, 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
1) 2ch H
3
Reg
TM
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 : 400kHz800kHzdepend on input-output condition
Applications
LCD-TV, PDP-TV, Set Top Box, Game Consoles, Desktop PCs
No.11034EBT08
Technical Note
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© 2011 ROHM Co., Ltd. All rights reserved.
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 BOOT1-SW1, BOOT2-SW2 7
*1*2
V
Output Voltage VOUT1, VOUT2 7
*1*2
V
Output Feedback Voltage FB1, FB2 VREG V
VREG Voltage VREG 7
*1*2
V
VCC Voltage VCC VREG V
Logic Input Voltage EN1, EN2 15.1
*1*2
V
Power Dissipation 1 Pd1 0.38
*3
W
Power Dissipation 2 Pd2 0.88
*4
W
Power Dissipation 3 Pd3 3.26
*5
W
Power Dissipation 4 Pd4 4.56
*6
W
Operating Temperature Range Topr -20+100
Storage Temperature Range Tstg -55+150
Maximum Junction Temperature Tjmax +150
*1 Not to exceed Pd.
*2 Instantaneous surge voltage, back electromotive force and voltage under less than 10% duty cycle.
*3 Reduced by 3.04mW/ for each increase in Ta of 1 over 25 (when dont mounted on a heat radiation board )
*4 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 : 20.2mm
2
)
*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: 20.2mm
2
, 2-3layer: 5505mm
2
)
*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: 5505mm
2
)
Operating Conditions (Ta=25)
Parameter Symbol
Ratings
Unit
Min. Max.
Input Voltage VIN1, VIN2, VINS 7.5 15 V
BOOT Voltage BOOT1, BOOT2 4.5 21 V
SW Voltage 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
This product should not be used in a radioactive environment.
Technical Note
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BD95830MUV
Electrical Characteristics
(Unless otherwise noted, Ta=25 VCC=VREG, VIN1=VIN2=VINS=12V, VEN1=VEN2=3V, VOUT1=VOUT2=1.8V)
Parameter Symbol
Limit
Unit Condition
Min. Typ. Max.
[Whole Device]
VIN Bias Current IIN - 1.7 2.2 mA
VIN Standby Current IIN_stb - 0 10 µA VEN1=VEN2=0V
EN Low Voltage 1,2 VEN_low1,2 GND - 0.3 V
EN High Voltage 1,2 VEN_high1,2 2.2 - 15 V
EN Pull-down resistance1,2 REN1,2 28 48 68 kΩ
[5V Regulator]
VREG Standby Voltage VREG_stb - - 0.1 V VEN1=VEN2=0V
VREG Output Voltage VREG 4.8 5.0 5.2 V
V
INS=7.5V to 15V
I
REG=10mA
Maximum Current IREG 10 - - mA
[Under-Voltage Lock-Out]
UVLO Threshold Voltage VCC_UVLO 4.0 4.3 4.6 V VREG:Sweep up
UVLO Hysteresis Voltage DVCC_UVLO 100 160 220 mV VREG:Sweep down
[OVP Block]
OVP Threshold Voltage 1,2 VOVP 0.86 0.96 1.06 V
OVP delay time tOVP - 1.4 - ms
[H
3
Reg
TM
Control Block]
ON Time1,2 ton1 200 255 310 ns
MIN OFF Time 1,2 toffmin1 300 550 - ns
[FET Driver Block]
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
[Over Current Protection Block]
Current Limit 1,2 Ilim1,2 3 4 5 A
[Output Voltage Detection Block]
FB threshold Voltage1,2 VFB1,2 0.788 0.8 0.812 V
Soft Start Time1,2 TSOFT1 - 1.3 - ms
FB Input Current 1,2 IFB1,2 -1 - 1 µA
VOUT Discharge Current 1,2 IVOUT1,2 5 10 - mA
V
OUT=1V, VEN=0V
V
CC=5V
[SCP Block]
SCP Threshold Voltage 1,2 Vthscp1,2 0.48 0.56 0.64 V
SCP delay time tSVP - 1.4 - ms

BD95830MUV-E2

Mfr. #:
Manufacturer:
Description:
Switching Voltage Regulators IC Pwr Swtch Reg Integrated FET
Lifecycle:
New from this manufacturer.
Delivery:
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