LTC4071

所属类别：电池管理芯片
产品名称：具低电池电量断接功能的并联锂离子 / 锂聚合物电池充电器系统
厂商：LT
生产批号：11+
封装：DFN-8, MSOP-8
库存状态：有库存
库存量：20000
最低订购量：1
详细资料：

Product Introduction

LTC4071 parallel lithium-ion/lithium-polymer battery charger system with low battery disconnection function

peculiarity

在一颗 IC 中提供充电器和电池组保护功能
低工作电流 (550nA)
接近零电流 (
可通过引脚选择的低电池电量断接电平：2.7V 或 3.2V
在整个温度范围内实现 1% 浮置电压准确度
50mA 最大内部并联电流
可通过引脚选择的浮置电压选项：4.0V、4.1V、4.2V
用于提供锂离子 / 锂聚合物电池保护的超低功率脉动 NTC 浮置电压查验
适合于断续、连续和非常低功率充电电源
高电池电量状态输出
耐热性能增强型、扁平 (高度仅 0.75mm) 8 引脚 (2mm x 3mm) DFN 封装和 MSOP 封装

description

The LTC®4071 enables simple charging of lithium-ion/lithium-polymer batteries from very low-current, intermittent, or continuously charging supplies. The device has a low-battery lockout disconnect capability that is close to zero current, preventing deep discharge and potentially irreparable damage to even very low-capacity batteries. Operating currents of 550nA to 50mA enable charging from previously unusable power sources. With its low operating current, LTC4071 is well suited for charging low-capacity lithium-ion or thin-film batteries in energy harvesting applications. LTC4071's unique architecture results in an extremely simple battery charger solution; Only one external resistor is required.

LTC4071 provides a pin-selectable float voltage with an accuracy of ±1%. By automatically reducing the battery float voltage when the NTC thermistor temperature is above 40°C, the device's integrated battery thermal checker extends battery life and improves reliability. In addition, the LTC4071 offers two pin-selectable low battery disconnect levels and a high battery state output.

The device is available in two thermally enhanced packages, a compact and low profile (only 0.75mm height) 8-pin (2mm x 3mm) DFN package, and an 8-pin MSOP package.

apply

低容量锂离子 / 锂聚合物电池备份
薄膜电池
能量提取 / 收集
具备份的太阳能电源系统
存储器备份
嵌入式汽车系统

ICs related to LTC4071 include:

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LTC4071	LT	11+	DFN-8, MSOP-8	Parallel lithium-ion/lithium-polymer battery charger system with low battery disconnection
MC14071BCPG	ON	10+		4000 SERIES CMOS
MC14071BDR2G	ON	10+		4000 SERIES CMOS
HEF4071BT,653	NXP	10+		4000 SERIES CMOS
CD4071BPW	TI	11+	TSSOP-14	CMOS quad 2 inputs or gates
MC14071BDR2	ON	10+11+	SOP-14	Hong Kong spot, imported original
CD4071BCN	Fairchild	2002	DIP	Four 2 input terminals or gates
CD4071BM96	TI	04+	SOP3.9mm	Four 2 input terminals or gates
SCL4071BE	SCL	04+	DIP-14	Brand new original
HEF4071BT	Philips	04+	SOP-14	Brand new original
CD4071BD	SG	06+	DIP	Digital circuits
CD4071BP	SG	06+	SOP	N/A
4071BP	PHIL	Stock lot number 0645	DIP	Brand new original
CD4071BFX	HARRIS	N／A	DIP	New inventory
4071	TI	04+	DIP	Brand new original
HCF4071BM1	ST	99+	SOP-14	New inventory
HEF4071BP	Philips	03+	DIP	Brand new original
CD4071	TI	11+	DIPSOP	Four 2 inputs or buffer B-series doors
HCF4071M013TR	ST	10+	DIP-14	Four 2 inputs or gates
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