|
|
PDF BD71L4L-1 Data sheet ( Hoja de datos )
| Número de pieza | BD71L4L-1 | |
| Descripción | CMOS Over Voltage Detector IC | |
| Fabricantes | ROHM Semiconductor | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de BD71L4L-1 (archivo pdf) en la parte inferior de esta página. Total 18 Páginas | ||
|
No Preview Available !
Datasheet
Voltage Detector IC Series
CMOS
Over Voltage Detector IC
BD71L4L-1 series
General Descriptions
ROHM’s BD71L4L-1 series is highly accurate and low
current Over Voltage Detector IC. It is an N-Channel
Open-Drain output type with detection voltage of 4.05V
and hysteresis voltage of 30mV. It is most suitable for
monitoring the charge of a lithium-ion battery.
Key Specifications
Detection Voltage:
High Accuracy Detection Voltage:
Ultra-Low Current Consumption:
Operating Temperature Range:
4.05V (Typ.)
±0.8%
0.8μA (Typ.)
-40°C to +85°C
Features
High Accuracy Detection Voltage
Low Current Consumption
N-Channel Open Drain Output
Wide Operating Temperature Range
Very Small and Low Height Package
Package SSOP5 is similar to SOT-23-5 (JEDEC)
Typical Application Circuit
VDD1
BD71L4L-1
CIN
VDD2
RL
Microcontroller
RST
CL
(Capacitor for
noise filtering)
GND
Package
SSOP5:
HVSOF5:
W(typ) x D(typ) x H(max)
2.90mm x 2.80mm x 1.25mm
1.60mm x 1.60mm x 0.60mm
Applications
All electronics equipment with lithium-ion battery
All electronics equipment that needs over-voltage
protection
○Product structure：Silicon monolithic integrated circuit
.www.rohm.com
© 2016 ROHM Co., Ltd. All rights reserved.
TSZ22111・14・001
○This product has no designed protection against radioactive rays
1/14
TSZ02201-0R7R0G300030-1-2
08.Jun.2016.Rev.005
1 page  
BD71L4L-1 series
Typical Performance Curves – continued
4.20
4.15
4.10
【BD71L4L-1】
High to Low (VDET)
4.05
4.00
3.95
Low to High (VDET-ΔVDET)
3.90
3.85
3.80
0
10 20 30 40 50
Temperature : Ta[°C]
Figure 6. Detection Voltage vs. Temperature
60
1.0
0.9 【BD71L4L-1】
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
0
10 20 30 40 50
Temperature : Ta[°C]
60
Figure 7. Operating Voltage Range vs. Temperature
3.0
1.0
0.9 【BD71L4L-1】
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
0 10 20 30 40 50 60
Temperature : Ta[°C]
Figure 8. Supply Current when Off vs. Temperature
VDD=VDET-0.2V
VDD=3.85V
1.0
0.9
0.8 【BD71L4L-1】
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
0 10 20 30 40 50 60
Temperature : Ta[°C]
Figure 9. Supply Current when On vs. Temperature
VDD=VDET+0.2V
VDD=4.25V
www.rohm.com
© 2016 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
5/14
TSZ02201-0R7R0G300030-1-2
08.Jun.2016.Rev.005
5 Page 
BD71L4L-1 series
Operational Notes – continued
12. Regarding Input Pins of the IC
In the construction of this IC, P-N junctions are inevitably formed creating parasitic diodes or transistors. The operation
of these parasitic elements can result in mutual interference among circuits, operational faults, or physical damage.
Therefore, conditions which cause these parasitic elements to operate, such as applying a voltage to an input pin lower
than the ground voltage should be avoided. Furthermore, do not apply a voltage to the input pins when no power supply
voltage is applied to the IC. Even if the power supply voltage is applied, make sure that the input pins have voltages
within the values specified in the electrical characteristics of this IC.
13. Ceramic Capacitor
When using a ceramic capacitor, determine the dielectric constant considering the change of capacitance with
temperature and the decrease in nominal capacitance due to DC bias and others.
14. Area of Safe Operation (ASO)
Operate the IC such that the output voltage, output current, and the maximum junction temperature rating are all within
the Area of Safe Operation (ASO).
15. Bypass Capacitor for Noise Rejection
To help reject noise, put more than 0.1µF capacitor between VDD pin and GND and 1000pF capacitor between VOUT
pin and GND. Be careful when using extremely big capacitor as transient response will be affected.
16. The VDD line impedance might cause oscillation because of the detection current.
17. A VDD to GND capacitor (as close connection as possible) should be used in high VDD line impedance condition.
18. External Parameters
The recommended parameter range for RL is 10kΩ to 1MΩ. There are many factors (board layout, etc) that can affect
characteristics. Operating beyond the recommended values does not guarantee correct operation. Please verify and
confirm using practical applications.
19. When VDD falls below the minimum operating voltage, output becomes unstable. When output is connected to pull-up
voltage, output will be equivalent to pull-up voltage.
20. Power-on Reset Operation
Please note that the power on reset output varies with the VDD rise time. Please verify the behavior in the actual
operation.
21. This IC has extremely high impedance pins. Small leak current due to the uncleanness of PCB surface might cause
unexpected operations. Application values in these conditions should be selected carefully. If the leakage is assumed
between the VOUT pin and the GND pin, consider to set the value of pull up resistor lower than 1/10 of the impedance of
assumed leakage route.
www.rohm.com
© 2016 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
11/14
TSZ02201-0R7R0G300030-1-2
08.Jun.2016.Rev.005
11 Page | ||
| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet BD71L4L-1.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| BD71L4L-1 | CMOS Over Voltage Detector IC | 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 |