|
|
PDF BD8668GW Data sheet ( Hoja de datos )
| Número de pieza | BD8668GW | |
| Descripción | Boost DC/DC Charger | |
| Fabricantes | ROHM Semiconductor | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de BD8668GW (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
|
No Preview Available !
Datasheet
Battery Charger IC Series
Boost DC/DC Charger
With Input Current Limiter
BD8664GW BD8665GW BD8668GW
General Description
BD8664GW, BD8665GW and BD8668GW are lithium-ion
battery charger IC’s, suitable for charging 2S batteries
from a 5V source, such as a USB port with DC/DC boost
topology.
Features
CP/CV Charging
Charge-On/ Off control available with EN pin
Integrated Input Detection (VBUSOK)
Integrated Power Good
Boost Switching Topology
Low Ron integrated MOSFET
Output Short Circuit Protection
0.4mm pitch Chip Scale Package (UCSP75M2)
Applications
DVC, DSC, MID and other Lithium battery-powered
portable devices
Key Specifications
Input Current Accuracy
±2%(BD8664GW)
±3%(BD8665GW/BD8668GW)
Charging Voltage Accuracy
±0.5%
Selectable Input Current
100mA/500mA/900mA/1500mA (max)
Charging frequency
1MHz (typ)
Input Standby Current
71µA(typ)
battery leakage current while charging is off 0µA(typ)
Package
UCSP75M2
W(Typ) x D(Typ) x H(Max)
2.20mm x 2.20mm x 0.85mm
Line Up
Charge
Voltage
8.30V
8.40V
Package
USCP75M2
Pin
number
20
25
Orderable
Part Number
BD8664GW
BD8665GW
BD8668GW
Typical Application Circuit
VBUS+
D+
D-
OVP
BC1.2
Detector
SDA
SCL
HOST
VBUS
ICOMP
VCOMP
FSET
ISNS
VBUSLIM
SW1
EN BD8664GW
BD8665GW
ISETIN1 BD8668GW
ISETIN2
ISETIN3
SW2
ACLEN
PGOOD
VFB
VBUSOK
ISETOUT1
ISETOUT2
FSET
GND PGND
Controled by HOST
SYSTEM
BATTERY+
Figure 1. Typical Application
Circuit
〇Product structure : Silicon monolithic integrated circuit 〇This product has no designed protection against radioactive rays
© 2015 ROHM Co., Ltd. All rights reserved.
TSZ22111・14・001
1/32
TSZ02201-0A1A0AZ00130-1-2
15.Apr.2015 Rev.001
1 page  
BD8664GW BD8665GW BD8668GW
Block Diagram
(VBUS)
VBUS
ISNS
EN
ICOMP
ISETIN1
ISETIN2
ISETIN3
ISETOUT1
ISETOUT2
ON/OFF
Level Shifter
Internal REG
CP Error Amplifier
200mA
OCP
1msec
P
20Ω
(typ)
P
Load SW
Reference Voltage
Control
CP/CV
Control
N
Driver
P
VBUSLIM
SW1
PGND
SW2
ACLEN
VCOMP
VBUSOK
PGOOD
Ramp up by VBUS
Internal
REG
3V
VBUSLIM soft-start ends
50msec after charging starts
CV Error Amplifier
FSET
Oscillator
500kHz～2MHz
SCP Detection
2.6V
(VFB)
VFB
(GND)
(GND) (GND) GND
Figure 2. Block Diagram
( ): NC in BD8665.
© 2015 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
5/32
TSZ02201-0A1A0AZ00130-1-2
15.Apr.2015 Rev.001
5 Page 
BD8664GW BD8665GW BD8668GW
Typical Performance Curves - continue
(Unless otherwise specified, VVBUS=5.0V VVFB=7.4V VISETIN1,2,3=0V GND=PGND=0V Ta=25°C)
VVFB
2.0V/div.
IVBUS
0.5A/div.
VICOMP
0.5V/div.
VVFB
2.0V/div.
IVBUS
0.5A/div.
1ms/div.
Figure 11. Changing Current
(500mA to 900mA)
VICOMP
0.5V/div.
1ms/div.
Figure 12. Changing Current
(900mA to 1500mA)
VVFB
2.0V/div.
IVBUS
0.5A/div.
VICOMP
0.5V/div.
VVFB
2.0V/div.
IVBUS
0.5A/div.
1ms/div.
Figure 13. Changing Current
(100mA to 1500mA)
VICOMP
0.5V/div.
1ms/div.
Figure 14. Changing Current
(1500mA to 500mA)
© 2015 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
11/32
TSZ02201-0A1A0AZ00130-1-2
15.Apr.2015 Rev.001
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet BD8668GW.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| BD8668GW | Boost DC/DC Charger | 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 |