|
|
PDF NJU7286 Data sheet ( Hoja de datos )
| Número de pieza | NJU7286 | |
| Descripción | Battery Backup Switching IC | |
| Fabricantes | New Japan Radio | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de NJU7286 (archivo pdf) en la parte inferior de esta página. Total 17 Páginas | ||
|
No Preview Available !
Battery Backup Switching IC
NJU7286
GENERAL DESCRIPTION
The NJU7286 is a battery backup system IC with two regulators,
two voltage detectors, a battery switching system and their
control circuit. It switches the regulator output from main power
supply source to the backup battery when it detects main power
supply drop and also has two voltage detection outputs.
The NJU7286 employs an exclusive sequence on the battery
switching system which reduces the battery operation. Combining
the special sequence and its low operating current, it is well-suited
for battery backup systems of DSC, DVC and other portable
devices. The NJU7286 is available in small and thin packages of
8-lead MSOP (TVSP) and SSOP. And there are four voltage
options available, as follow table.
PACKAGE OUTLINE
NJU7286RB1
(MSOP8 (VSP8))
NJU7286V
(SSOP8)
FEATURES
z Low Quiescent Current
z Low Dropout Voltage
z 2CH(REG1, REG2) Output Voltage
:12µA max. (VIN =3.6V) / Normal operation
:2.1µA max. (VBAT =3.0V) / Backup
:0.06V max. (IRO =3mA) / REG1
:0.3V max. (IOUT =23mA) / REG2
:±2.0%
z 2CH(CS, RESET)______________ Output Voltage
: ± 2.0%
z Exclusive Sequence
z Small Package SSOP8, MSOP8 (TVSP8)*
*MEET JEDEC MO-187-DA / THIN TYPE
PIN CONFIGURATION
18
27
36
45
MSOP8 (TVSP-8)
SSOP-8
1.VSS
2.NC
3.VBAT
4.CS
5. RESET______________
6.VOUT
7.VIN
8.VRO
Ver.2012-07-18
-1-
1 page  
NJU7286
NJU7286B
(CIN=0.1µF, CO(VOUT)=10µF, CO(VRO)=10µF, Ta=25°C)
PARAMETER
SYMBOL
TEST CONDITION
Total
Quiescent Current
ISS1 VIN =6.0V, No-Load
IBAT1 VIN =6.0V, VBAT=3.0V, No-Load
IBAT2 VIN=OPEN,VBAT=3.0V, No-Load
Backup Power Supply
Input Voltage
VBAT
Voltage Regulator 1
Output Voltage 1
Dropout Voltage 1
Load Regulation 1
Line Regulation 1
Average Temperature
Coefficient of Output
Voltage 1
VRO
∆VI-O1
∆VRO/∆IRO
∆VRO/∆VIN
∆VRO/∆T
VIN=6.0V, IRO=3mA
IRO=3mA
VIN=6.0V, IRO=0.1~30mA
VIN=6~9V, IRO=3mA
Ta=0°C to +85°C
Voltage Regulator 2
Output Voltage 2
Dropout Voltage 2
Load Regulation 2
Line Regulation 2
Average Temperature
Coefficient of Output
Voltage 2
VOUT
∆VI-O2
∆VOUT/∆IOUT
∆VOUT/∆VIN
∆VOUT/∆T
VIN=6.0V, IOUT=23mA
IOUT=23mA
VIN=6.0V, IOUT=0.1 to 60mA
VIN=6 to 9V, IOUT=23mA
Ta=0°C to +85°C
CS Voltage Detection
Detection Voltage 1
Release Voltage 1
Average Temperature
Coefficient of Detection
Voltage 1
Output Current 1
Leak Current 1
Operation Voltage 1
______________
RESET Voltage Detection
Detection Voltage 2
Release Voltage 2
Release Delay Time
Average Temperature
Coefficient of Detection
Voltage 2
-VDET1
+VDET1
∆VDET1/∆T
ISINK1
ILEAK1
VOPR1
-VDET2
+VDET2
TDELAY
∆VDET2/∆T
Detection Voltage VIN
Ta=0°C to +85°C
VDS=0.5V, VIN=VBAT=2.0V
VDS=9V, VIN=9V
VIN or VBAT
Detection Voltage VOUT
Ta=0°C to +85°C
Output Current 2
Leak Current 2
Operation Voltage 2
ISINK2
ILEAK2
VOPR2
VDS=0.5V, VIN=VBAT=2.0V
VDS=9V, VIN=9V
VIN or VBAT
MIN. TYP. MAX. UNIT
- 4 12 µA
- - 0.1 µA
-
1.0 2.1
µA
2.0 - 4.0 V
3.087
-
-
-
3.150
30
0.06
-
3.213
60
0.15
0.2
V
mV
%/mA
%/V
- ±100 - ppm/°C
3.087
-
-
-
3.150
150
0.04
-
3.213
300
0.1
0.2
V
mV
%/mA
%/V
- ±100 - ppm/°C
4.116
4.204
4.200
4.305
4.284
4.407
V
V
- ±100 - ppm/°C
1.50 2.30
-
- - 0.1
1.7 -
9.0
mA
µA
V
2.254
2.348
200
2.300
2.420
500
2.346
2.492
-
V
V
µS
- ±100 - ppm/°C
1.50 2.30
-
- - 0.1
1.7 -
9.0
mA
µA
V
Ver.2012-07-18
-5-
5 Page 
BLOCK DIAGRAM
VIN
CS
Voltage
Detector
VoVlStaWg1 e
Detector
RESET
Voltage
Detector
Short
Circuit
Protection
REG1
Short
Circuit
Protection
REG2
VoVlStaWg2 e
Detector
Switch
Control
NJU7286
VRO
VOUT
RESET______________
CS
VSS
Short
Circuit
Protection
VBAT
Ver.2012-07-18
- 11 -
11 Page | ||
| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet NJU7286.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| NJU7286 | Battery Backup Switching IC | New Japan Radio |
| NJU7287 | Battery Backup Switching IC | New Japan Radio |
| 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 |