XB5358A [ETC]

锂电池保护IC; チューナ用IC
XB5358A
型号: XB5358A
厂家: ETC    ETC
描述:

锂电池保护IC
チューナ用IC

电池
文件: 总11页 (文件大小:725K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
XB5358A  
SUNFAN  
One Cell Lithium-ion/Polymer Battery Protection IC  
____________________________________________________________________________________________________________________________  
GENERAL DESCRIPTION  
The XB5358 series product is a high  
integration solution for lithium-  
ion/polymer battery protection. XB5358  
contains advanced power MOSFET,  
high-accuracy voltage detection circuits  
and delay circuits. XB5358 is put into an  
ultra-small SOT23-5 package and only  
one external component makes it an  
ideal solution in limited space of battery  
pack.  
FEATURES  
Protection of Charger Reverse  
Connection  
Protection of Battery Cell Reverse  
Connection  
Integrate Advanced Power MOSFET  
withEquivalent of 45m RDS(ON)  
Ultra-small SOT23-5 Package  
Only One External Capacitor  
Required  
Over-temperature Protection  
Overcharge Current Protection  
Three-step Overcurrent Detection:  
-Overdischarge Current 1  
-Overdischarge Current 2  
-Load Short Circuiting  
XB5358 has all the protection functions  
required in the battery application including  
overcharging, overdischarging, overcurrent  
and load short circuiting protection etc. The  
accurate overcharging detection voltage  
ensures safe and full utilization charging.  
The low standby current drains little current  
from the cell while in storage.  
The device is not only targeted for digital  
cellular phones, but also for any other  
Li-Ion and Li-Poly battery-powered  
information appliances requiring long-  
term battery life.  
Charger Detection Function  
0V Battery Charging Function  
- Delay Times are generated inside  
High-accuracy Voltage Detection  
Low Current Consumption  
- Operation Mode: 2.8  
- Power-down Mode: 0.1  
μ
A typ.  
A max.  
μ
RoHS Compliant and Lead (Pb) Free  
APPLICATIONS  
One-Cell Lithium-ion Battery Pack  
Lithium-Polymer Battery Pack  
Figure 1. Typical Application Circuit  
www.ic0769.com.cn 0769-2257 6264  
- 1 -  
REV0.3  
XB5358A  
SUNFAN  
ORDERING INFORMATION  
____________________________________________________________________________________________________________________________  
Overcharg Overcharge Overdischarge Overdischarge  
Overcurrent  
Detection  
Current  
e Detection  
Voltage  
Release  
Voltage  
Detection  
Voltage  
Release  
Voltage  
PART  
NUMBER age  
Pack  
Top Mark  
[IOV1] (A)  
[VCU] (V)  
[VCL] (V)  
[VDL] (V)  
[VDR] (V)  
SOT  
XB5358A  
23-5  
4.30  
4.10  
2.40  
3.0  
3
5358AYW(note)  
Note: “YW” is manufacture date code, “Y” means the year, “W” means the week  
PIN CONFIGURATION  
5
4
VM  
VM  
VCC GND VDD  
1
2
3
SOT23-5  
Figure 2. PIN Configuration  
PIN DESCRIPTION  
XB5358 PIN  
NUMBER  
PIN NAME  
PIN DESCRIPTION  
1
2
3
VCC  
GND  
VDD  
Core circuit power supply  
Ground, connect the negative terminal of the battery to this pin  
Power Supply  
The negative terminal of the battery pack. The internal FET switch  
connects this terminal to GND  
4,5  
VM  
ABSOLUTE MAXIMUM RATINGS  
(Note: Do not exceed these limits to prevent damage to the device. Exposure to absolute maximum rating  
conditions for long periods may affect device reliability.)  
PARAMETER  
Input voltage between VCC and GND  
VDD input pin voltage  
VALUE  
-0.3 to +6  
-0.3 to VCC+0.3  
-6 to 10  
UNIT  
V
V
VM input pin voltage  
V
Operating Ambient Temperature  
Maximum Junction Temperature  
-40 to 85  
125  
°C  
°C  
- 2 -  
www.ic0769.com.cn 0769-2257 6264  
REV0.3  
XB5358A  
SUNFAN  
Storage Temperature  
Lead Temperature ( Soldering, 10 sec)  
Power Dissipation at T=25°C  
____________________________________________________________________________________________________________________________  
-55 to 150  
300  
°C  
°C  
0.4  
W
250  
°C/W  
°C/W  
V
Package Thermal Resistance (Junction to Ambient)  
θJA  
Package Thermal Resistance (Junction to Case)  
ESD  
θ
JC  
130  
2000  
ELECTRICAL CHARACTERISTICS  
o
Typicals and limits appearing in normal type apply for T = 25 C, unless otherwise specified  
A
Parameter  
Detection Voltage  
Symbol  
Test Condition  
Min  
Typ  
Max  
Unit  
V
4.25  
4.05  
4.35  
4.30  
4.10  
V
Overcharge Detection Voltage  
Overcharge Release Voltage  
CU  
4.15  
2.5  
V
V
V
CL  
2.3  
2.4  
V
DL  
Overdischarge Detection Voltage  
2.9  
3.1  
3.0  
V
V
V
Overdischarge Release Voltage  
Charger Detection Voltage  
DR  
V
I
-0.07  
-0.12  
-0.2  
CHA  
Detection Current  
A
A
Overdischarge Current1 Detection  
V
V
=3.5V  
2.1  
10  
3
3.9  
DD  
IOV1  
I
Load Short-Circuiting  
Detection  
=3.5V  
20  
30  
SHORT  
DD  
Current Consumption  
Current Consumption in Normal  
Operation  
V
=3.5V  
2.8  
0.1  
6
I
DD  
OPE  
μ
A
VM =0V  
=2.0V  
I
Current Consumption in power  
Down  
V
DD  
PDN  
μA  
VM pin floating  
VM Internal Resistance  
R
Internal Resistance between  
V
=3.5V  
320  
100  
VMD  
DD  
k
k
VM and V  
VM=1.0V  
=2.0V  
DD  
Internal Resistance between VM  
and GND  
V
DD  
R
VMS  
VM=1.0V  
FET on Resistance  
R
Equivalent FET on Resistance  
V
=3.6V  
I
=1.0A  
45  
DS(ON)  
DD  
VM  
m  
Over Temperature Protection  
T
T
Over Temperature Protection  
120  
100  
SHD+  
o
C
Over Temperature Recovery Degree  
SHD-  
- 3 -  
www.ic0769.com.cn 0769-2257 6264  
REV0.3  
XB5358A  
SUNFAN  
Detection Delay Time  
____________________________________________________________________________________________________________________________  
Overcharge Voltage Detection  
Delay Time  
S
0.25  
0.4  
t
CU  
mS  
mS  
mS  
uS  
Overdischarge Voltage Detection  
Delay Time  
t
40  
8
60  
12  
4
DL  
Overdischarge Current 1 Detection  
Delay Time  
Overdischarge Current 2 Detection  
Delay Time  
V
V
V
=3.5V  
=3.5V  
=3.5V  
t
IOV1  
DD  
DD  
DD  
2
t
IOV2  
t
Load Short-Circuiting Detection  
Delay Time  
5
50  
SHORT  
Figure 3. Functional Block Diagram  
FUNCTIONAL DESCRIPTION  
The XB5358 monitors the voltage and  
current of a battery and protects it from  
being damaged due to overcharge voltage,  
overdischarge voltage, overdischarge  
current, and short circuit conditions by  
disconnecting the battery from the load  
or charger. These functions are required in  
order to operate the battery cell within  
specified limits.  
The device requires only one external  
capacitor. The MOSFET is integrated and  
its RDS(ON) is as low as 45mtypical.  
Normal operating mode  
If no exception condition is detected,  
charging and discharging can be carried  
out freely. This condition is called the  
normal operating mode.  
Overcharge Condition  
- 4 -  
www.ic0769.com.cn 0769-2257 6264  
REV0.3  
XB5358A  
heavy load, which causes an overcurrent, is  
connected, the overcurrent 1 and overcurrent 2 do  
not work until the battery voltage drops below the  
SUNFAN  
When the battery voltage becomes higher  
than the overcharge detection voltage (VCU)  
during charging under normal condition  
____________________________________________________________________________________________________________________________  
overcharge detection voltage (VCU). Since an actual  
and the state continues for the overcharge  
detection delay time (tCU) or longer, the  
XB5358 turns the charging control FET off  
to stop charging. This condition is called  
the overcharge condition. The overcharge  
condition is released in the following two  
cases:  
1, When the battery voltage drops below  
the overcharge release voltage (VCL), the  
XB5358 turns the charging control FET on  
and returns to the normal condition.  
battery has, however, an internal impedance of  
several dozens of mΩ, and the battery voltage  
drops immediately after a heavy load which causes  
an overcurrent is connected, the overcurrent 1 and  
overcurrent 2 work. Detection of load short-  
circuiting works regardless of the battery voltage.  
Overdischarge Condition  
When the battery voltage drops below the  
overdischarge detection voltage (VDL)  
during discharging under normal condition  
and it continues for the overdischarge  
detection delay time (tDL) or longer, the  
XB5358 turns the discharging control FET  
off and stops discharging. This condition is  
called overdischarge condition. After the  
discharging control FET is turned off, the  
VM pin is pulled up by the RVMD resistor  
between VM and VDD in XB5358.  
Meanwhile when VM is bigger than 1.5  
V (typ.) (the load short-circuiting detection  
voltage), the current of the chip is reduced  
to the power-down current (IPDN). This  
condition is called power-down condition.  
The VM and VDD pins are shorted by the  
RVMD resistor in the IC under the  
2, When a load is connected and  
discharging starts, the XB5358 turns the  
charging control FET on and returns to the  
normal condition. The release mechanism  
is as follows: the discharging current flows  
through an internal parasitic diode of the  
charging FET immediately after a load is  
connected and discharging starts, and the  
VM pin voltage increases about 0.7 V  
(forward voltage of the diode) from the  
GND pin voltage momentarily. The XB5358  
detects this voltage and releases the  
overcharge condition. Consequently, in the  
case that the battery voltage is equal to or  
lower than the overcharge detection  
voltage (VCU), the XB5358returns to the  
normal condition immediately, but in the  
case the battery voltage is higher than the  
overcharge detection voltage (VCU),the chip  
does not return to the normal condition  
until the battery voltage drops below the  
overcharge detection voltage (VCU) even if  
the load is connected. In addition, if the VM  
pin voltage is equal to or lower than the  
overcurrent 1 detection voltage when a  
load is connected and discharging starts,  
the chip does not return to the normal  
overdischarge and power-down conditions.  
The power-down condition is released  
when a charger is connected and the  
potential difference between VM and VDD  
becomes 1.3 V (typ.) or higher (load short-  
circuiting detection voltage). At this time,  
the FET is still off. When the battery  
voltage becomes the overdischarge  
detection voltage (VDL) or higher (see note),  
the XB5358 turns the FET on and changes  
to the normal condition from the  
overdischarge condition.  
Remark If the VM pin voltage is no less than the  
charger detection voltage (VCHA), when the battery  
under overdischarge condition is connected to a  
charger, the overdischarge condition is released  
(the discharging control FET is turned on) as usual,  
provided that the battery voltage reaches the  
condition.  
Remark If the battery is charged to a voltage higher  
than the overcharge detection voltage (VCU) and  
the battery voltage does not drops below the  
overcharge detection voltage (VCU) even when a  
- 5 -  
www.ic0769.com.cn 0769-2257 6264  
REV0.3  
XB5358A  
charger detection voltage (VCHA). When an  
SUNFAN  
____________________________________________________________________________________________________________________________  
overdischarge release voltage (VDU) or higher.  
abnormal charge current flows into a  
Overcurrent Condition  
battery in the overdischarge condition, the  
XB5358 consequently turns the charging  
control FET off and stops charging after  
the battery voltage becomes the  
overdischarge detection voltage and the  
overcharge detection delay time (tCU)  
elapses.  
Abnormal charge current detection is  
released when the voltage difference  
between VM pin and GND pin becomes  
lower than the charger detection voltage  
(VCHA) by separating the charger. Since the  
0 V battery charging function has higher  
priority than the abnormal charge current  
detection function, abnormal charge  
current may not be detected by the product  
with the 0 V battery charging function while  
the battery voltage is low.  
When the discharging current becomes  
equal to or higher than a specified value  
(the VM pin voltage is equal to or higher  
than the overcurrent detection voltage)  
during discharging under normal condition  
and the state continues for the overcurrent  
detection delay time or longer, the XB5358  
turns off the discharging control FET to  
stop discharging. This condition is called  
overcurrent condition. (The overcurrent  
includes overcurrent 1, overcurrent 2, or  
load short-circuiting.)  
The VM and GND pins are shorted  
internally by the RVMS resistor under the  
overcurrent condition. When a load is  
connected, the VM pin voltage equals the  
VDD voltage due to the load.  
The overcurrent condition returns to the  
normal condition when the load is released  
and the impedance between the B+ and B-  
pins becomes higher than the automatic  
recoverable impedance. When the load is  
removed, the VM pin goes back to the  
GND potential since the VM pin is shorted  
the GND pin with the RVMS resistor.  
Detecting that the VM pin potential is lower  
than the overcurrent 1 detection voltage  
(VIOV1), the IC returns to the normal  
condition.  
Load Short-circuiting condition  
If voltage of VM pin is equal or below  
short circuiting protection voltage (VSHORT),  
the XB5358 will stop discharging and  
battery is disconnected from load. The  
maximum delay time to switch current off is  
tSHORT. This status is released when voltage  
of VM pin is higher than short protection  
voltage (VSHORT), such as when  
disconnecting the load.  
Delay Circuits  
Abnormal Charge Current Detection  
If the VM pin voltage drops below the  
charger detection voltage (VCHA) during  
charging under the normal condition and it  
continues for the overcharge detection  
delay time (tCU) or longer, the XB5358 turns  
the charging control FET off and stops  
charging. This action is called abnormal  
charge current detection.  
The detection delay time for overdischarge  
current 2 and load short-circuiting starts  
when overdischarge current 1 is detected.  
As soon as overdischarge current 2 or load  
short-circuiting is detected over detection  
delay time for overdischarge current 2 or  
load short- circuiting, the XB5358 stops  
discharging. When battery voltage falls  
below overdischarge detection voltage due  
to overdischarge current, the XB5358 stop  
discharging by overdischarge current  
Abnormal charge current detection works  
when the discharging control FET is on  
and the VM pin voltage drops below the  
- 6 -  
www.ic0769.com.cn 0769-2257 6264  
REV0.3  
XB5358A  
SUNFAN  
____________________________________________________________________________________________________________________________  
detection. In this case the recovery of battery  
voltage is so slow that if battery voltage  
after overdischarge voltage detection delay  
time is still lower than overdischarge  
detection voltage, the XB5358 shifts to  
power-down.  
between the gate and the source of the  
charging control FET becomes equal to or  
higher than the turn-on voltage by the  
charger voltage, the charging control FET  
is turned on to start charging. At this time,  
the discharging control FET is off and the  
charging current flows through the internal  
parasitic diode in the discharging control  
FET. If the battery voltage becomes equal  
to or higher than the overdischarge release  
voltage (VDU), the normal condition returns.  
Note  
(1) Some battery providers do not recommend  
charging of completely discharged batteries. Please  
refer to battery providers before the selection of 0 V  
battery charging function.  
(2) The 0V battery charging function has higher  
priority than the abnormal charge current detection  
function. Consequently, a product with the 0 V  
battery charging function charges a battery and  
abnormal charge current cannot be detected during  
the battery voltage is low (at most 1.8 V or lower).  
(3) When a battery is connected to the IC for the  
first time, the IC may not enter the normal condition  
in which discharging is possible. In this case, set  
the VM pin voltage equal to the GND voltage (short  
the VM and GND pins or connect a charger) to  
enter the normal condition.  
Figure 4. Overcurrent delay time  
0V Battery Charging Function (1) (2) (3)  
This function enables the charging of a  
connected battery whose voltage is 0 V by  
self-discharge. When a charger having 0 V  
battery start charging charger voltage  
(V0CHA) or higher is connected between B+  
and B- pins, the charging control FET gate  
is fixed to VDD potential. When the voltage  
- 7 -  
www.ic0769.com.cn 0769-2257 6264  
REV0.3  
XB5358A  
SUNFAN  
TIMING CHART  
____________________________________________________________________________________________________________________________  
1Overcharge and overdischarge detection  
VCU  
VCU-VHC  
Battery  
voltage  
VDL+VDH  
VDL  
ON  
DISCHARGE  
OFF  
ON  
CHARGE  
OFF  
VDD  
Vov1  
VM  
VSS  
VCHA  
Charger connection  
Load connection  
tCL  
tCU  
(1)  
(1)  
(2)  
(1)  
(3)  
Figure5-1 Overcharge and Overdischarge Voltage Detection  
2Overdischarge current detection  
Battery  
voltage  
VCU  
VCU-VHC  
VDL+VDH  
VDL  
ON  
DISCHARGE  
OFF  
VDD  
VM  
VSHORT  
Vov2  
Vov1  
VSS  
Charger connection  
Load connection  
tIOV2  
tIOV1  
tSHORT  
(1)  
(4)  
(1)  
(4)  
(1)  
(4)  
(1)  
Figure5-2 Overdischarge Current Detection  
Remark: (1) Normal condition (2) Overcharge voltage condition (3) Overdischarge voltage condition (4)  
Overcurrent condition  
- 8 -  
www.ic0769.com.cn 0769-2257 6264  
REV0.3  
XB5358A  
SUNFAN  
3Charger Detection  
____________________________________________________________________________________________________________________________  
VCU  
VCU-VHC  
Battery  
voltage  
VDL+VDH  
VDL  
ON  
DISCHARGE  
OFF  
VDD  
VM  
VSS  
VCHA  
Charger connection  
Load connection  
tDL  
(1)  
(3)  
(1)  
Figure5-3 Charger Detection  
4Abnormal Charger Detection  
VCU  
VCU-VHC  
Battery  
voltage  
VDL+VDH  
VDL  
ON  
DISCHARGE  
OFF  
ON  
CHARGE  
OFF  
VDD  
VM  
VSS  
VCHA  
Charger connection  
Load connection  
tCU  
tDL  
(1)  
(3)  
(1)  
(2)  
(1)  
Figure5-4 Abnormal Charger Detection  
Remark: (1) Normal condition (2) Overcharge voltage condition (3) Overdischarge voltage condition (4)  
Overcurrent condition  
- 9 -  
www.ic0769.com.cn 0769-2257 6264  
REV0.3  
XB5358A  
SUNFAN  
TYPICAL CHARACTERISTICS  
____________________________________________________________________________________________________________________________  
(Test based on XB5358A version, VBAT = 3.6V, TA= 25°C unless otherwise specified)  
Internal FET On-Resistance vs. Junction Temperature  
TYPICAL APPLICATION  
As shown in Figure 6, the bold line is the high density current path which must be kept as  
short as possible. For thermal management, ensure that these trace widths are adequate. C is  
a decoupling capacitor which should be placed as close as possible to XB5358.  
Fig 6 XB5358 in a Typical Battery Protection Circuit  
Precautions  
• Pay attention to the operating conditions for input/output voltage and load current so that the  
power loss in XB5358 does not exceed the power dissipation of the package.  
• Do not apply an electrostatic discharge to this XB5358 that exceeds the performance ratings of the  
built-in electrostatic protection circuit.  
- 10 -  
www.ic0769.com.cn 0769-2257 6264  
REV0.3  
XB5358A  
SUNFAN  
PACKAGE OUTLINE  
____________________________________________________________________________________________________________________________  
SOT23-5 PACKAGE OUTLINE AND DIMENSIONS  
DIMENSION  
DIMENSION  
IN  
SYMB  
OL  
IN INCHES  
MILIMETERS  
MIN MAX MIN MAX  
1.050 1.250 0.041 0.049  
0.000 0.100 0.000 0.004  
1.050 1.150 0.041 0.045  
0.300 0.400 0.012 0.016  
0.100 0.200 0.004 0.008  
2.820 3.020 0.111 0.119  
1.500 1.700 0.059 0.067  
2.650 2.950 0.104 0.116  
A
A1  
A2  
b
c
D
E
E1  
e
0.950 TYP  
1.800 2.000 0.071 0.079  
0.700 REF 0.028 REF  
0.300 0.600 0.012 0.024  
0° 8° 0° 8°  
0.037 TYP  
e1  
L
L1  
θ
- 11 -  
www.ic0769.com.cn 0769-2257 6264  
REV0.3  

相关型号:

XB5AA21

Pushbutton Switch, SPST, Momentary, 0.55A, 125VDC, Screw Terminal, Panel Mount
SCHNEIDER

XB5AA31

Pushbutton Switch,
SCHNEIDER

XB5AA41

Pushbutton Switch,
SCHNEIDER

XB5AA42

Pushbutton Switch,
SCHNEIDER

XB5AA65

Pushbutton Switch,
SCHNEIDER

XB5AA801

Pushbutton Switch,
SCHNEIDER

XB5AA831

Pushbutton Switch,
SCHNEIDER

XB5AA842

Pushbutton Switch,
SCHNEIDER

XB5AA84201

Pushbutton Switch,
SCHNEIDER

XB5AA861

Pushbutton Switch,
SCHNEIDER

XB5AA862

Pushbutton Switch,
SCHNEIDER

XB5AD21

Rotary Switch, 2 Positions, Screw Terminal, Rotary Actuator, Panel Mount,
SCHNEIDER