|
|
PDF NCP802 Data sheet ( Hoja de datos )
| Número de pieza | NCP802 | |
| Descripción | Highly Integrated Lithium Battery Protection Circuit for One Cell Battery Packs | |
| Fabricantes | ON | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de NCP802 (archivo pdf) en la parte inferior de esta página. Total 23 Páginas | ||
|
No Preview Available !
NCP802
Highly Integrated Lithium
Battery Protection Circuit
for One Cell Battery Packs
The NCP802 resides in a lithium battery pack where the battery cell
continuously powers it. This circuit senses cell voltage, charge
current, and discharge current, and correspondingly controls the state
of two, N−channel MOSFET switches. These switches reside in series
with the negative terminal of the cell and the negative terminal of the
battery pack. During a fault condition, the NCP802 open circuits the
pack by turning off one of these MOSFET switches, which
disconnects the current path. Internal delay circuitry minimizes
external component count.
Features
• Highly Accurate Overvoltage Detector
"25 mV at Room Temperature
"30 mV from −5 to 55°C
• Fault Detection Thresholds
Overvoltage Threshold:
SN1/SAN1 = 4.35 V, SAN5 = 4.275 V, SAN6 = 4.28 V
Undervoltage Threshold:
SN1/SAN1 = 2.4 V, SAN5/6 = 2.3 V
Discharge Current Threshold:
SN1/SAN1/SAN6 = 0.2 V, SAN5 = 0.1 V
Charge Current Threshold: 0.1 V
• Internal Output Delays
Overvoltage Output Delay:
SN1/SAN1/SAN6 = 250 ms, SAN5 = 1 ms
Undervoltage Output Delay: 20 ms
Discharge Current Output Delay:
SN1/SAN1/SAN6 = 12 ms, SAN5 = 6 ms
Charge Current Output Delay:
SN1/SAN1/SAN6 = 16 ms, SAN5 = 8 ms
• Absolute Maximum Rating of 28 V for the Charger Input
• Low Quiescent Current
Normal Operating Current: 3.0 mA
Standby Current when Cells are Discharged: 0.1 mA
• Zero Volt Charging
• Available in a Low Profile Surface Mount Package
• Pb−Free Package is Available*
http://onsemi.com
MARKING
DIAGRAMS
6
1
SOT23−6
SN SUFFIX
CASE 1262
XXxx
6
SON−6
XX
SAN SUFFIX
xx
CASE 494
1
XX = Specific Device Code
xx = Date Code
PIN CONNECTIONS
DO 1
P− 2
CO 3
6 Gnd
5 Vcell
4 DS
SOT23−6
(Top View)
DO 1
6 P−
Vcell 2
5 CO
Gnd 3
4 DS
SON−6
(Top View)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 20 of this data sheet.
*For additional information on our Pb−Free
strategy and soldering details, please download
the ON Semiconductor Soldering and Mounting
Techniques Reference Manual, SOLDERRM/D.
© Semiconductor Components Industries, LLC, 2004
September, 2004 − Rev. 10
1
Publication Order Number:
NCP802/D
1 page  
NCP802
CONNECT
LOAD
CONNECT
CHARGER
CONNECT
LOAD
EXCESS
DISCHARGE
CONNECT CURRENT SHORT
CHARGER
OPEN
OPEN
VCELL
VDET2
VDD
Vshort
−P VDET3
Gnd
VDET4
VDD
tDET2
Gnd
DO
CHARGE
CURRENT
CHARGE/
DISCHARGE
CURRENT
0
DISCHARGE
CURRENT
tDET2
tREL2
tDET3
tREL2
t
tshort
t
tREL3
tREL3
t
t
Figure 4. Undervoltage/Excess Discharge Current Timing Chart
http://onsemi.com
5
5 Page 
NCP802
1.8 2.20
1.6 2.15
1.4 2.10
1.2
2.05
1 VDD = 3.0 V
2.00
0.8
0.6 1.95
0.4 1.90
0.2 1.85
0 1.80
−60 −40 −20 0 20 40 60 80 100
−50
TA, AMBIENT TEMPERATURE (°C)
0 50
TA, AMBIENT TEMPERATURE (°C)
100
Figure 17. Excess Charge Current Release
Time vs. Temperature
Figure 18. Short Protection Threshold vs.
Temperature
700
600
500
400
300
200
100
0
−50 0 50 100
TA, AMBIENT TEMPERATURE (°C)
Figure 19. Short Protection Delay Time vs.
Temperature
3
2.5
2
VDD = 3.0 V
1.5
1
0.5
0
−50 0 50
TA, AMBIENT TEMPERATURE (°C)
100
Figure 20. DS Pin High Input Minimum Voltage
vs. Temperature
3
2.5
2
1.5
VDD = 3.6 V to 4.4 V
1
0.5
0
−50 0 50
TA, AMBIENT TEMPERATURE (°C)
Figure 21. DS Pin Middle Input Minimum
Voltage vs. Temperature
100
2.5
2
VDD = 3.6 V
1.5
1
0.5
0
−50 0 50 100
TA, AMBIENT TEMPERATURE (°C)
Figure 22. DS Pin Pull−Down Resistance vs.
Temperature
http://onsemi.com
11
11 Page | ||
| Páginas | Total 23 Páginas | |
| PDF Descargar | [ Datasheet NCP802.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| NCP802 | Highly Integrated Lithium Battery Protection Circuit for One Cell Battery Packs | ON |
| NCP803 | Very Low Supply Current 3-Pin Microprocessor Reset Monitor | ON |
| NCP803 | Very Low Supply Current 3-Pin Microprocessor Reset Monitor |  ON 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 |