900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf




Rohm Semiconductor Electronic Components Datasheet

BD9011KV Datasheet

High-efficiency Switching Regulators

No Preview Available !

TECHNICAL NOTE
Large Current External FET Controller Type Switching Regulator
Step-down,
High-efficiency
Switching Regulators
(Controller type)
BD9011EKN , BD9011KV , BD9775FV
BD901 1EKN, BD9011KV
Overview
The BD9011EKN/KV is a 2-ch synchronous controller with rectification switching for enhanced power management efficiency.
It supports a wide input range, enabling low power consumption ecodesign for an array of electronics.
Features
1) Wide input voltage range: 3.9V to 30V
2) Precision voltage references: 0.8V±1%
3) FET direct drive
4) Rectification switching for increased efficiency
5) Variable frequency: 250k to 550kHz (external synchronization to 550kHz)
6) Built-in selected OFF latch and auto remove over current protection
7) Built-in independent power up/power down sequencing control
8) Make various application , step-down , step-up and step-up-down
9) Small footprint packages: HQFN36V, VQFP48C
Applications
Car audio and navigation systems, CRTTVLCDTVPDPTVSTBDVDand PC systemsportable CD and DVD players,
etc.
Absolute Maximum Ratings (Ta=25)
Parameter S
ymbol
EXTVCC Voltage
EXTVCC
Rating
34 *1 V
Unit
Parameter S
COMP1,2 Voltage
ymbol
COMP1,2
Rating Unit
VCCCL1,2 Voltage
VCCCL1,2
34 *1
V
DET1,2 Voltage
DET1,2
VREG5 V
CL1,2 Voltage
CL1,2
34
V
RTSYNC Voltage
RTSYNC
SW1,2 Voltage
BOOT1,2 Voltage
BOOT1,2-SW1,2
Voltage
STB, EN1,2 Voltage
SW1,2
BOOT1,2
BOOT1,2-SW1,2 7
34 *1
40 *1
*1 V
STB, EN1,2
VCC
V
V
V
Power Dissipation
0.875 *2
W
HQFN36V
Pd
1.1 *2
VQFP48C
W
VREG5,5A
VREG5,5A 7
V
Operating
temperature
Topr
-40 to +105
VREG33 VREG
33 VREG5 V Storage temperature Tstg -55 to +150
SS1,2FB1,2
SS1,2FB1,2
VREG5
V Junction temperature
Tj +150
*1 Regardless of the listed rating, do not exceed Pd in any circumstances.
*2 Mounted on a 70mm x 70mm x 0.8mm glass-epoxy board. De-rated at 7.44mW/℃(HQFN36Vor 8.8mW/℃(VQFP48C
above 25.
Sep. 2008
http://www.Datasheet4U.com


Rohm Semiconductor Electronic Components Datasheet

BD9011KV Datasheet

High-efficiency Switching Regulators

No Preview Available !

Operating conditions (Ta=25)
Parameter S
ymbol
Min.
Input voltage 1
EXTVCC
3.9 *1 *2 12
Input voltage 2
VCC
3.9 *1 *2 12
BOOTSW voltage
BOOTSW
4.5 5
Carrier frequency
OSC
250 300 550
Synchronous frequency
SYNC
OSC
Synchronous pulse duty
Duty
40
Min OFF pulse
TMIN
-
This product is not designed to provide resistance against radiation.
*1 After more than 4.5V, voltage range.
*2 In case of using less than 6V, Short to VCC, EXTVCC and VREG5.
Typ.
-
50
100
Max.
30
30
VREG5
550
60
-
Unit
V
V
V
kHz
kHz
nsec
Electrical characteristics (Unless otherwise specified, Ta=25VCC=12V STB=5V EN1,2=5V)
Parameter S
ymbol
Min. T
Limit
yp.
Max.
Unit Con
ditions
VIN bias current
IIN - 5 10 mA
Shutdown mode current IST - 0 10 μA VST B=0V
Error Amp Block
Feedback reference voltage
Feedback reference voltage
(Ta=-40 to 105)
Open circuit voltage gain
VOB 0.792
VOB+
0.784
Averr
-
0.800
0.800
46
0.808
0.816
-
V
V Ta=-40 to 105℃ ※
dB
VO input bias current
IVo+
- - 1 μA
FET Driver Block
HG high side ON resistance
HG low side ON resistance
HGhon -
HGlon -
1.5 -
1.0 -
Ω
Ω
LG high side ON resistance
LGhon -
1.5 -
Ω
LG low side ON resistance
LGlon -
0.5 -
Ω
Oscillator
Carrier frequency
FOSC
270 300 330 kHz RT=100 kΩ
Synchronous frequency
Fsync
- 500 - kHz RT=100 kΩ,SYNC=500kHz
Over Current Protection Block
CL threshold voltage
CL threshold voltage
Ta=-40 to 105℃)
VREG Block
Vswth 70
Vswth+ 67
90 110 V
90 113 V Ta=-40 to 105℃ ※
VREG5 output voltage
VREG5 4.8 5 5.2 V IREF=6mA
VREG33 reference voltage
VREG33
3.0 3.3 3.6
V IREG=6mA
VREG5 threshold voltage
VREG_UVLO
2.6
2.8
3.0
V VREG:Sweep down
VREG5 hysteresis voltage DVREG_UVLO 50
100 200
mV VREG:Sweep up
Soft start block
Charge current
ISS 6.5
10 13.5 μA VSS=1V
Charge current
(Ta=-40 to 105)
ISS+ 6
10 14 μA VSS=1V,Ta=-40 to 105℃ ※
Note: Not all shipped products are subject to outgoing inspection.
2/29


Part Number BD9011KV
Description High-efficiency Switching Regulators
Maker Rohm
Total Page 30 Pages
PDF Download

BD9011KV Datasheet PDF

View PDF for Mobile








Similar Datasheet

1 BD9011KV High-efficiency Switching Regulators
Rohm





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z

Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy