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参数资料
| 型号： | BQ2002FSNG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| 封装： | 0.150 INCH, PLASTIC, SOIC-8 |
| 文件页数： | 1/17页 |
| 文件大小： | 318K |
| 代理商： | BQ2002FSNG4 |
1
Features
Fast charge of nickel cadmium
or nickel-metal hydride batter-
ies
Direct LED output displays
charge status
Fast-charge termination by -
V,
maximum voltage, maximum
temperature, and maximum
time
Internal band-gap voltage ref-
erence
Optional top-off charge
Selectable pulse trickle charge
rates
Low-power mode
8-pin 300-mil DIP or 150-mil
SOIC
General Description
The bq2002 and bq2002/F Fast-Charge
ICs are low-cost CMOS battery-charge
controllers providing reliable charge
termination for both NiCd and NiMH
battery applications.
Controlling a
current-limited or constant-current
supply allows the bq2002/F to be the
basis for a cost-effective stand-alone or
system-integrated charger.
The
bq2002/F integrates fast charge with
optional top-off and pulsed-trickle con-
trol in a single IC for charging one or
more NiCd or NiMH battery cells.
Fast charge is initiated on application
of the charging supply or battery re-
placement. For safety, fast charge is
inhibited if the battery temperature
and voltage are outside configured
limits.
Fast charge is terminated by any of
the following:
n Peak voltage detection (PVD)
n Negative delta voltage (-
V)
n Maximum voltage
n Maximum temperature
n Maximum time
After fast charge, the bq2002/F op-
tionally tops-off and pulse-trickles the
battery per the pre-configured limits.
Fast charge may be inhibited using
the INH pin. The bq2002/F may also
be placed in low-standby-power mode
to reduce system power consumption.
The bq2002F differs from the
bq2002 only in that a slightly differ-
ent set of fast-charge and top-off
time limits is available. All differ-
ences between the two ICs are illus-
trated in Table 1.
NiCd/NiMH Fast-Charge Management ICs
bq2002/F
TM
Timer mode select input
LED
Charging status output
BAT
Battery voltage input
VSS
System ground
1
PN-200201.eps
8-Pin DIP or
Narrow SOIC
2
3
4
8
7
6
5
TM
LED
BAT
VSS
CC
INH
VCC
TS
Temperature sense input
VCC
Supply voltage input
INH
Charge inhibit input
CC
Charge control output
Pin Connections
Pin Names
bq2002/F Selection Guide
Part No.
TCO
HTF
LTF
-
V PVD Fast Charge
tMTO
Top-Off
Maintenance
bq2002
0.5
VCC None None
C/2
160
C/32
C/64
1C
80
C/16
C/64
2C
40
None
C/32
bq2002F 0.5
VCC None None
C/2
160
C/32
C/64
1C
100
C/16
C/64
2C
55
None
C/32
SLUS131 – A
PRIL 2009
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相关代理商/技术参数 |
参数描述 |
|---|---|
| BQ2002FSNTR | 功能描述:电池管理 NiCd/NiMH Gating Charge Mngmnt IC RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| BQ2002FSNTRG4 | 功能描述:电池管理 NiCd/NiMH Gating Charge Mngmnt IC RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| BQ2002G | 制造商:TI 制造商全称:Texas Instruments 功能描述:NiCd/NiMH Fast-Charge Management ICs |
| BQ2002GPN | 功能描述:电池管理 NiCd/NiMH Gating Charge Mngmnt IC RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| BQ2002GPNE4 | 功能描述:电池管理 NiCd/NiMH Gating Charge Mngmnt IC RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
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