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PDF BD8158FVM Data sheet ( Hoja de datos )
| Número de pieza | BD8158FVM | |
| Descripción | Boost Converter | |
| Fabricantes | ROHM Semiconductor | |
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Datasheet
2.1V(or 2.5V) to 5.5V, 1.5A 1ch
Boost Converter with Integrated FET
BD8152FVM BD8158FVM
General Description
BD8152FVM and BD8158FVM are 1-Channel boost
converter which uses low voltage FET. The input
voltage is 2.5V to 5.5V for BD8152FVM and 2.1V to
5.5V for BD8158FVM achieving a low power
consumption. The high accuracy feedback voltage
(±1%) is established and the brightness dispersion of
TFT-LCD panel is suppressed.
Features
Current Mode PWM System
Built-In Under-Voltage Lockout Protection Circuit
Built-In Over-Current Protection Circuit
Built-In Thermal Shutdown Circuit
Key Specifications
Input Voltage Range: BD8152FVM 2.5V to 5.5V
BD8158FVM 2.1V to 5.5V
Switching Frequency:
600 kHz/1,200 kHz
Integrated FET RON
Feedback Voltage:
250mΩ(Typ)
1.245 ± 1%
Ultra-Low Current Consumption:
0µA (Typ)
Operating Temperature Range:
BD8152FVM -40°C to +85°C
BD8158FVM -40°C to +125°C
Package
W (Typ) x D (Typ) x H (Max)
Applications
Panels for the Satellite Navigation System
Laptop PC( 7 to17 inches)
TFT-LCD Panels
MSOP8
2.90mm x 4.00 mm x 0.90mm
Typical Application Circuit
L
VCC Cin
Rc
Cc
VCC,PVCC
FCLK,ENB
COMP
SW
GND,PGND
Co
Figure 1. Typical Application Circuit
Vo
〇Product structure : Silicon monolithic integrated circuit
.www.rohm.com
© 2014 ROHM Co., Ltd. All rights reserved.
TSZ22111 • 14 • 001
〇This product has no designed protection against radioactive rays
1/23
TSZ02201-0323AAJ00550-1-2
09.Sep.2014 Rev.001
1 page  
BD8152FVM BD8158FVM
Typical Performance Curves
(Unless otherwise specified, Ta = 25°C)
-40°C
25°C
125°C
Supply Voltage: VCC [V]
Figure 4. Supply Current vs Supply Voltage
2.000
1.500
1.000
0.500
125°C
0.000
-0.500
-1.000
25°C
-40°C
-1.500
-2.000
0
123
SSUuPpPpLlyYVVoOltLaTgAeG: VEC:VCc[cV][V]
4
Figure 5. Standby Current vs Supply Voltage
1.260
1.255
1.250
1.245
1.240
1.235
1.230
-40 -15 10 35 60 85 110
AMABmIEbNieTnTt TEeMmPpEeRraAtTurUeR: TEa:T[°aC[]℃]
Figure 6. Reference Voltage vs Temperature
0
-4
-8
-12
-16
-20
0
0.5 1 1.5
SSSVSOVLoTlAtaGgEe::VVSSSS[[VV]]
2
Figure 7. SS Current vs SS Voltage
www.rohm.com
© 2014 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
5/23
TSZ02201-0323AAJ00550-1-2
09.Sep.2014 Rev.001
5 Page 
BD8152FVM BD8158FVM
2. Timing Chart
Startup sequence
VCC
ENB
SS
SW
VO
Figure 22. Startup Sequence Waveform
Over-Current protection operation
2.5V
VCC,ENB
SS
SW
VO
IO
Figure 23. Over-Current Protection Operating Waveform
www.rohm.com
© 2014 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
11/23
TSZ02201-0323AAJ00550-1-2
09.Sep.2014 Rev.001
11 Page | ||
| Páginas | Total 26 Páginas | |
| PDF Descargar | [ Datasheet BD8158FVM.PDF ] | |
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