参数资料
型号: MC33341D
厂商: ON Semiconductor
文件页数: 13/19页
文件大小: 0K
描述: IC CTRLR BATTERY PS REG 8-SOIC
产品变化通告: LTB Notification 03/Jan/2008
标准包装: 98
功能: 充电管理
电池化学: 所有电池类型
电源电压: 2.3 V ~ 16 V
工作温度: -25°C ~ 85°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-SOICN
包装: 管件
MC33341
Source
R2
Load
8
7
6
5
1.2 V
Differential Amp
Disable Logic
V CC
0.4 V
1.2 V
V CC
V CC
V CC
R1
Opto
Isolator
R
Differential Amp
R
V CC
V sen
V th
I sen
I th
V
I
Transconductance
Amp
V CC
R
R
R
R
V CC
V CC
Reference
0.2 V 0.4 V 1.2 V
Battery or
Resistive
Load
V CC
Inverting Amp
0.2 V
1
2
3
4
R3
Source
Return
Comp
R S
Load
The above figure shows the MC33341 configured for load low?side current sensing allowing common paths for both power and ground,
between the source and load. The Noninverting input paths, Pins 1 and 4, are used to sense the load induced voltage drop that appears
across resistor R S . The internal voltage and current regulation thresholds are selected by the respective external connections of Pins 2 and
6. Resistor R3 is required in applications where high peak levels of load current are possible from the battery or load bypass capacitor. The
resistor value should be chosen to limit the negative substratecurrent to less than 20 mA. Excessively large values for R3 will degrade the
current sensing accuracy.
R2 ) 1
S
pk S
V reg + V
th(V) R1
I reg +
V
th(I LS ) )
R
R3 +
I
R
0.02
– 0.6
+ 1.2 R2 ) 1
+ 0.2
S
R1
R
Figure 20. Load Low?Side Current Sensing with
Internally Fixed Current and Voltage Thresholds
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MC33341DG 功能描述:电池管理 2.3-15V Power Supply Charger w/Regulation 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
MC33341DR2 功能描述:电池管理 2.3-15V Power Supply 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
MC33341DR2G 功能描述:电池管理 2.3-15V Power Supply Charger w/Regulation 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
MC33341P 功能描述:电池管理 2.3-15V Power Supply 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
MC33341PG 功能描述:电池管理 2.3-15V Power Supply Charger w/Regulation 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