参数资料
型号: BQ2002ESN
厂商: Texas Instruments
文件页数: 4/15页
文件大小: 0K
描述: IC CONTROLLER FASTCHRGE 8-SOIC
标准包装: 75
功能: 充电管理
电池化学: 镍镉(NiCd)、镍金属氢化物(NiMH)
电源电压: 4 V ~ 6 V
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SOIC
包装: 管件
产品目录页面: 1016 (CN2011-ZH PDF)
配用: 296-9488-ND - EVAL MOD FOR BQ2002
其它名称: 296-9321-5
bq2002E/G
VCC = 0
Fast Charging
Top-Off
Pulse-Trickle
Fast Charging
(optional)
CC Output
73ms
1.17s
See Table 1
1.17s
Charge initiated by application of power
Charge initiated by battery replacement
LED
TD2002EG.eps
Figure 4. Charge Cycle Phases
A ground-referenced negative temperature coefficient ther-
mistor placed near the battery may be used as a low-cost
temperature-to-voltage transducer. The temperature
sense voltage input at TS is developed using a resistor-
thermistor network between V CC and V SS . See Figure 1.
Starting A Charge Cycle
Either of two events starts a charge cycle (see Figure 4):
1. Application of power to V CC or
2. Voltage at the BAT pin falling through the maximum
cell voltage V MCV where
V MCV = 2V ± 5%.
If the battery is within the configured temperature and
voltage limits, the IC begins fast charge. The valid bat-
tery voltage range is V LBAT < V BAT < V MCV , where
Table 1. Fast-Charge Safety Time/Hold-Off/Top-Off Table
Typical Fast-
Charge and
Top-Off
Maximum
Synchro-
Corre-
sponding
Time Limits
(minutes)
Typical PVD
and - ? V
Pulse-
Pulse-
Trickle
nized
Sampling
Fast-Charge
Hold-Off Time
Top-Off
Trickle
Width
Period
Rate
TM
Termination
bq2002E bq2002G
(seconds)
Rate
Rate
(ms)
(seconds)
C/2
1C
2C
Mid
Low
High
PVD
PVD
- ? V
200
80
40
160
80
40
300
150
75
Disabled
C/16
Disabled
C/32
C/32
C/32
73
37
18
18.7
18.7
9.4
Notes:
Typical conditions = 25°C, V CC = 5.0V
Mid = 0.5 * V CC ± 0.5V
Tolerance on all timing is ± 12%.
4
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BQ2002ESN 制造商:Texas Instruments 功能描述:Battery Management IC
BQ2002ESNG4 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
BQ2002ESNTR 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
BQ2002ESNTRG4 功能描述:电池管理 NiCd/NiMH Charge Controller 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
BQ2002F 制造商:TI 制造商全称:Texas Instruments 功能描述:NiCd/NiMH Fast-Charge Management ICs