- 您现在的位置：买卖IC网 > PDF目录16046 > LTC1734ES6-4.2#TR (Linear Technology)IC BATT CHRGR LI-ION LIN SOT23-6 PDF资料下载
参数资料
| 型号： | LTC1734ES6-4.2#TR |
| 厂商： | Linear Technology |
| 文件页数： | 5/12页 |
| 文件大小： | 0K |
| 描述： | IC BATT CHRGR LI-ION LIN SOT23-6 |
| 标准包装： | 2,500 |
| 功能： | 充电管理 |
| 电池化学： | 锂离子，镍镉，镍氢 |
| 电源电压： | 4.55 V ~ 8 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SOT-23-6 细型，TSOT-23-6 |
| 供应商设备封装： | TSOT-23-6 |
| 包装： | 带卷 (TR) |
| 其它名称： | LTC1734ES6-4.2TR |
LTC1734
PI N FU N CTIO N S
I SENSE (Pin 1): Sense Node for Charge Current. Current
from V CC passes through the internal current sense resis-
tor and reappears at I SENSE to supply current to the
external PNP emitter. The PNP collector provides charge
current to the battery.
GND (Pin 2): Ground. Provides a reference for the internal
voltage regulator and a return for all internal circuits.
When in the constant voltage mode, the LTC1734 will
precisely regulate the voltage between the BAT and GND
pins. The battery ground should connect close to the GND
pin to avoid voltage drop errors.
V CC (Pin 3): Positive Input Supply Voltage. This pin
supplies power to the internal control circuitry and exter-
nal PNP transistor through the internal current sense
resistor. This pin should be bypassed to ground with a
capacitor in the range of 1 μ F to 10 μ F.
PROG (Pin 4): Charge Current Programming, Charge
Current Monitor and Manual Shutdown Pin. Provides a
virtual reference voltage of 1.5V for an external resistor
(R PROG ) tied between this pin and ground that programs
the battery charge current when the charger is in the
constant current mode. The typical charge current will be
1000 times greater than the current through this resistor
(I BAT = 1500/R PROG ). This pin also allows for the charge
current to be monitored. The voltage on this pin is propor-
tional to the charge current where 1.5V corresponds to the
full programmed currrent. Floating this pin allows an
internal current source to pull the pin voltage above the
shutdown threshold voltage. Because this pin is in a signal
path, excessive capacitive loading can cause AC instabil-
ity. See the Applications Information section for more
details.
BAT (Pin 5): Battery Voltage Sense Input. A precision
internal resistor divider sets the final float voltage on this
pin. This divider is disconnected in the manual shutdown
or sleep mode. When charging, approximately 34 μ A
flows into the BAT pin. To minimize float voltage errors,
avoid excessive resistance between the battery and the
BAT pin. For dynamically stable operation, this pin usually
requires a minimum bypass capacitance to ground of 5 μ F
to frequency compensate for the high frequency inductive
effects of the battery and wiring.
DRIVE (Pin 6): Base Drive Output for the External PNP
Pass Transistor. Provides a controlled sink current that
drives the base of the PNP. This pin has current limiting
protection for the LTC1734.
BLOCK DIAGRA
1 μ F
V IN
3
V CC
I BAT /1000
60 ?
I BAT
0.06 ?
1
I SENSE
VOLTAGE
REFERENCE
2.5V
REF
–
A3
+
SHUTDOWN
OUTPUT
DRIVER
6
DRIVE
UVLO
SHUTDOWN
TEMPERATURE AND
CURRENT LIMITING
I BAT
2.15V
+
C1
SHUTDOWN
1.5V
+
A2
A1
+
2.5V
5
BAT
10 μ F
SINGLE
Li-Ion
CELL
–
3 μ A
–
–
SHUTDOWN
4
PROG
2
1734 BD
GND
R PROG
5
相关PDF资料 |
PDF描述 |
|---|---|
| LTC1734ES6-4.1#TR | IC BATT CHRGR LI-ION LIN SOT23-6 |
| HBC07DREI-S734 | CONN EDGECARD 14POS .100 EYELET |
| GBC22DRYN-S734 | CONN EDGECARD 44POS DIP .100 SLD |
| M3TFK-3436R | IDC CABLE - MSD34K/MC34M/MCF34K |
| M3TGK-3436R | IDC CABLE - MSD34K/MC34M/MCS34K |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC1734LES6-4.2 | 制造商:Linear Technology 功能描述:Battery Charger Li-Ion/NiCD/NiMH 50mA to 180mA 4.2V 6-Pin TSOT-23 |
| LTC1734LES6-4.2#PBF | 制造商:Linear Technology 功能描述:Battery Charger Li-Ion/NiCD/NiMH 50mA to 180mA 4.2V 6-Pin TSOT-23 |
| LTC1734LES6-4.2#TR | 功能描述:IC CHARGER BATT CONSTV/I SOT23-6 RoHS:否 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 标准包装:61 系列:- 功能:电源管理 电池化学:锂离子（Li-Ion）、锂聚合物（Li-Pol） 电源电压:4.35 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:22-WFDFN 裸露焊盘 供应商设备封装:22-DFN（6x3）裸露焊盘 包装:管件 |
| LTC1734LES6-4.2#TRM | 功能描述:IC CHARGER BATT LIN LI-ION SOT23 RoHS:否 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 标准包装:2,000 系列:Impedance Track™ 功能:燃料，电量检测计/监控器 电池化学:锂离子（Li-Ion） 电源电压:2.4 V ~ 2.6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:20-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:20-TSSOP 包装:带卷 (TR) 产品目录页面:1020 (CN2011-ZH PDF) 配用:BQ27350EVM-ND - BQ27350EVM 其它名称:296-21665-2 |
| LTC1734LES6-4.2#TRMPBF | 功能描述:IC CHARGER BATT LIN LI-ION SOT23 RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 标准包装:1 系列:- 功能:充电管理 电池化学:锂离子（Li-Ion）、锂聚合物（Li-Pol） 电源电压:3.75 V ~ 6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SC-74A，SOT-753 供应商设备封装:SOT-23-5 包装:剪切带 (CT) 产品目录页面:669 (CN2011-ZH PDF) 其它名称:MCP73831T-2ACI/OTCT |
发布紧急采购，3分钟左右您将得到回复。