|
|
PDF BD9859EFJ Data sheet ( Hoja de datos )
| Número de pieza | BD9859EFJ | |
| Descripción | 3.0A 1ch Buck Converter | |
| Fabricantes | ROHM Semiconductor | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de BD9859EFJ (archivo pdf) en la parte inferior de esta página. Total 23 Páginas | ||
|
No Preview Available !
Datasheet
5.0V to 14V, 3.0A 1ch
Buck Converter with Integrated FET
BD9859EFJ
General Description
Key Specifications
The BD9859EFJ is a high-efficiency step-down switching
Input Voltage Range:
5.0V to 14V
regulator with built-in power MOSFET switch. This device
can operate over a wide range of input voltages and is
Output Voltage Range:
Output Current:
1.0V to 0.7xVCC
3.0A (Max)
flexible enough to produce output voltages from 1.0V up to
70% of the supply voltage, depending on the external
Switching Frequency:
750kHz(Typ)
High Side Nch FET ON-Resistance 100mΩ(Typ)
resistor values. The built-in N-Channel FET switch has a
very high absolute maximum rating of 15V and is capable
Nch FET ON-Resistance for Pew-Charge: 5Ω(Typ)
Standby Current:
0μA (Typ)
of handling current of up to 3.0 A. The implementation of
Operating Temperature Range: -40°C to +85°C
current-mode control for this switching regulator gives the
advantage of a high-speed load response. The device has Package
a fixed switching frequency of 750kHz, allowing the use of
W (Typ) x D (Typ) x H (Max)
smaller output inductors and capacitors. Also, its phase
compensation network, although external to the device, is
very simple and requires a minimal number of components,
making the construction of a compact power supply really
easy.
Features
1.0V±1.0% Feedback Voltage
Built-In Soft Start Function
Built-In Over Current Protect, Under Voltage Lockout,
and Thermal Shutdown Circuits
ON/OFF Control through EN Pin
HTSOP-J8
4.90mm x 6.00mm x 1.00mm
Applications
Generally for Household Equipment with 9V/12V Lines
Typical Application Circuit
(Input 12V, Output 5.0V/ 2.5A)
VVBBAATT
CCBBAATT
22 uF/ 16V
GRM31CB31C226KE15
(murata)
CCBBSSTT
0.022 uF
JJEENN
0 Ω SW
RREENN
CCEENN
0Ω
open
VENEN
VCC VCC BST
EN
4.7 uH
10 uF/ 6.3V
(FDV0630 - 4R7M)
GRM219B30J106KE18
(murata)
LLXx GND VC FB
VVOOUTUT
RFRA
L
CCOOUUTT
D
0 Ω CCCC22
RSX301-LA30 (ROHM)
CCCC11 1000 pF
RRCC 7.5 kΩ
open
RINV1 120 kΩ
RINV2 30 kΩ
Figure 1. Typical Application Circuit
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
1/20
TSZ02201-0Q3Q0AJ00420-1-2
22.Jan.2016 Rev.002
1 page  
BD9859EFJ
Typical Performance Curves - continued
VCC=14V
VCC=12V
VCC=7V
Temperature (°C)
Figure 8. Oscillation Frequency vs
Temperature
VCC=14V
VCC=12V
VCC=7V
Temperature (°C)
Figure 9. Maximum Duty Cycle vs
Temperature
VCC=14V
VCC=12V
VCC=7V
Temperature (°C)
Figure 10. FB Threshold Voltage vs
Temperature
VCC (V)
Figure 11. FB Threshold Voltage vs VCC
www.rohm.com
© 2014 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
5/20
TSZ02201-0Q3Q0AJ00420-1-2
22.Jan.2016 Rev.002
5 Page 
BD9859EFJ
4. Evaluation Board Pattern (Reference)
Figure 26. Evaluation Board Pattern
(1) Make the heat sink plate of the bottom layer a plane of low impedance.
(2) Because large currents flow into the lines of VCC, LX, PGND, make the patterns as wide as possible.
www.rohm.com
© 2014 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
11/20
TSZ02201-0Q3Q0AJ00420-1-2
22.Jan.2016 Rev.002
11 Page | ||
| Páginas | Total 23 Páginas | |
| PDF Descargar | [ Datasheet BD9859EFJ.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| BD9859EFJ | 3.0A 1ch Buck Converter | ROHM Semiconductor |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |