The JTM5056 is a complete constant current & constant volta

1.产品概述         2.产品特点
3.应用范围       4.下载产品资料PDF文档
5.产品封装图                     6.电路原理图
7.功能概述       8.相关产品

一,产品概述(General Description)
          The JTM5056 is a complete constant current & constant voltage linear charger for single cell lithium-ion batteries.Its SOP package and low external component count make the JTM5056 ideally suited for portable applications.
Furthermore, the    JTM5056 is specifically designed to work within USB power specifications.No external sense resistor is needed, and no blocking diode is required due to the internal MOSFET architecture. Thermal feedback regulates the charge current to limit the die temperature during high power operation or high ambient temperature. The charge voltage is fixed at 4.2V, and the charge current can be programmed externally with a single resistor. The JTM5056 automatically terminates the charge cycle when the charge current drops to 1/10th the programmed value after the final float voltage is reached.When the input supply (wall adapter or USB supply) is removed, the JTM5056 automatically enters a low current state, dropping the battery drain current to less than 2uA.
        The JTM5056 can be put into shutdown mode, reducing the supply current to 50uA.Other features include Battery temperature monitor,under-voltage lockout, automatic recharge and two status pins to indicate charge and charge termination.

二.产品特点(Features)
1.)No MOSFET, Sense Resistor or Blocking Diode Required
2.) Constant-Current/Constant-Voltage Operation with Thermal
     Regulation to Maximize Charge Rate Without Risk of
    Overheating
3.) Charges Single Cell Li-Ion Batteries Directly from USB Port
4.)Preset 4.2V Charge Voltage with ±1% Accuracy
5.)Charge Current Monitor Output for Gas Gauging
6.) Automatic Recharge
7.) Charge state pairs of output, no battery and fault status display
8.) C/10 Charge Termination
9.)50uA Supply Current in Shutdown
10.) 2.9V Trickle Charge Threshold
11.) Soft-Start Limits Inrush Current
12.) Battery temperature monitoring function
13.)Available in SOP8-PP Package
14.) Complete Linear Charger in SOP Package for single
       Cell Lithium-Ion Batteries

三,应用范围 (Applications)
Cellular Telephones, PDAs, MP3 /MP4 Players
Charging Docks and Cradles
Bluetooth 、GPS Applications

四.下载产品资料PDF文档

JTM5056

五,产品封装图 (Package)

Pin Number	Pin Name
1	TEMP
2	PROG
3	GND
4	VCC
5	BAT
6	STDBY
7	CHRG
8	CE

六.电路原理图

七,功能概述

Pin Function

TEMP (Pin 1): Battery temperature detection input. TEMP pin to receive the battery NTC sensor output. If the TEMP
pin voltage is less than the input voltage is greater than 45% or 80% of the input voltage means the battery temperature
is too low or too high, then the charge has been suspended.
If the TEMP direct access GND, battery temperature detection canceled, the other charged and functioning properly.

PROG (Pin 2): Charge Current Program, Charge Current Monitor and Shutdown Pin. The charge current is
programmed by connecting a 1% resistor, RPROG, to ground. When charging in constant-current mode, this pin servos
to 1V. In all modes, the voltage on this pin can be used to measure the charge current using the following formula:
IBAT = (VPROG/RPROG) ·1000
The PROG pin can also be used to shut down the charger. Disconnecting the program resistor from ground allows a 3uA
current to pull the PROG pin high. When it reaches the 1.21V shutdown threshold voltage, the charger enters shutdown
mode, charging stops and the input supply current drops to 50uA. This pin is also clamped to approximately 2.4V.
Driving this pin to voltages beyond the clamp voltage will draw currents as high as 1.5mA. Reconnecting RPROG to
ground will return the charger to normal operation.

GND (Pin 3): Ground.

VCC (Pin 4): Positive Input Supply Voltage. Provides power to the charger, VCC can range from 4.25V to 6.5V and
should be bypassed with at least a 10uF capacitor. When VCC drops to within 30mV of the BAT pin voltage, the
JTM5056 enters shutdown mode, dropping IBAT to less than 2uA.

BAT (Pin 5): Charge Current Output. Provides charge current to the battery and regulates the final float voltage to
4.2V. An internal precision resistor divider from this pin sets the float voltage which is disconnected in shutdown mode
.
STDBY (Pin 6): The completion of battery charging instructions side. When the battery charge is complete, STDBY
pulled low by internal switches, indicating the completion of charging. In addition, STDBY pin will be in a
high-impedance state.

CHRG (Pin 7): Open-Drain Charge Status Output. When the battery is charging, the CHRG pin is pulled low by an
internal N-channel MOSFET. When the charge cycle is completed, a weak pull-down of approximately 20uA is

connected to the CHRG pin, indicating an “AC present”condition. When the
condition, CHRG is forced high impedance.

056 detects an under voltage lockout

CE (Pin 8): Chip enable input..High input level would

JTM5056 is in normal working condition; low input level so that

JTM5056 is prohibited charging status. CE pin can be TTL or CMOS level-level driver.

八,相关产品

同步整流3合1移动电源IC:
型号	功能	包含的模块	工作模式	最低放	放电过	充电电流	升压	待机	0V电	保护功能	封装形式
				电电压	流保护		效率	功耗	池充电
JTM5903	0.8A 充电	充电模块	充电	2.85V		0.8A	88%	20uA		电池过充	ESOP-8
	同步1A 放电	升压电源模块	放电							过放保护
	移动电源	电量显示模块	首次充电							欠压保护
	管理IC	以及保护模块	故障							芯片过温保护
										过流保护
										短路保护
JTM5913	0.6A 充电	充电管理模块	充电	2.85V		0.6A	90%	20uA		电池过充	SOP-8
	同步0.8A 放电	电量检测及	放电							过放保护
	移动电源	电量指示模块	待机							欠压保护
	管理IC	升压放电管理模块								芯片过温保护
										过流保护
										短路保护
JTM5923	0.8A 充电	锂电充电模块	充电	2.85V		0.8A	90%	20uA		电池过充	ESOP-8
	同步1A 放电	升压电源模块	放电							过放保护
	三合一移动	综合控制模块	待机							过压保护
	电源管理IC	保护模块								过载保护
										短路保护
JTM5911	1.2A 充电	充电管理模块	充电	2.9V		通过电阻调节	93%	10uA		电池过充	SOP-16
	同步1.5A 放电	电量检测及	放电							过放保护
	全集成移动	电量指示模块	待机							欠压保护
	电源管理IC	升压放电管理模块								芯片过温保护
										过流保护
										短路保护
JTM5912	1.2A 充电	充电管理模块	充电	2.9V		通过电阻调节	93%	10uA		电池过充	ESOP-16
	同步2A 放电	电量检测及	放电							过放保护
	全集成移动	电量指示模块	待机							欠压保护
	电源管理IC	升压放电管理模块								芯片过温保护
										过流保护
										短路保护
JTM5915	1.2A 充电	充电管理模块	充电	3.0V		通过电阻调节	91%	50uA		电池过充	SOP-16
	1A 放电	电量检测模块	放电							过放保护
	全集成	电量指示模块	待机							欠压保护
	移动电源管理IC	升压放电管理模块								芯片过温保护
										过流保护
										过压保护
										短路保护
JTM5918	2.5A 充电	充电管理模块	充电	3.0V		通过电阻调节	95%	50uA		电池过充	ESOP-16
	2A 放电	电量检测模块	放电							过放保护
	全集成	电量指示模块	待机							欠压保护
	移动电源管理IC	升压放电管理模块								芯片过温保护
										过流保护
										过压保护
										短路保护
JTM5919	3A 充电	充电管理模块	充电	3.0V		通过电阻调节	95%	50uA		电池过充	QFN-24
	2.4A 放电	电量检测模块	放电							过放保护
	移动电源管理IC	电量指示模块	待机							欠压保护
		升压放电管理模块								芯片过温保护
										过流保护
										过压保护
										短路保护
JTM5908	扩流开关2A充电	锂电充电模块	充电	2.8V			95%	26uA		过流(OCP)保护	SOP-16
	扩流同步2A放电	升压电源模块	放电							过压(OVP)保护
	三合一移动	电量显示模块	待机							短路(SCP)保护
	电源管理IC	综合控制模块								欠压保护


型号	充电工作电压	静态电流	充电电流	充饱电压	PWM频率	升压电池电压范围	升压输出	反馈电压	封装
JTM5906	4.2V-6.5V	2mA	2A	4.19V	550K	3V-4.65V	5V/3A	1.2V	TSSOP-16


线性单节锂电充电IC

产品型号	输出	输入	最大充电电流	充电类型	充电截止电压	精度	涓流充电截止电压	功耗	封装	状态	替代型号
	电压	电压							形式
JTM4054	4.2V	4.25-6.5V	800mA		4.2V	±1%	2.9V	25uA	SOT23-5	量产	LTC4054
											MCP73831
											MCP73832
JTM4054B	4.35V	4.25-6V	800mA		4.35V	±1%	2.9V	25uA	SOT23-5	量产	4.35V/三星电芯
											充电应用
JTM4057	4.2V	4.25-6.0V	800mA		4.2V	±1%	2.9V	25uA	SOT23-6	量产	TP4057

JTM4057B	4.35V	4.5-6.5V	800mA		4.35V	±1%	2.9V	85uA	SOT-26	量产	4.35V/三星电芯
											充电应用
JTM4050MR	4.2V	4.25-6.5V	200mA		4.2V	±1%	2.9V	150uA	SOT-25	量产	小电流充电应用


JTM4056	4.2V	4.0-8.0V	1200mA		4.2V	±1.5%	2.9V	55uA	ESOP8	量产	TP4056

JTM4056B	4.35V	4.0-8.0V	1200mA		4.35V	±1.5%	2.9V	55uA	ESOP8	量产	4.35V/三星电芯
											充电应用
JTM5056	4.2V	4.25-6.5V	1000mA		4.2V	±1%	2.9V	50uA	ESOP8	量产	TP4056
											CN3052
											GS1406
JTM4051	4.2V	4.25-6.5V	1.2A		4.2V	±1%	2.9V	25uA	ESOP8	量产	CN3052
					以上可调						CN3062
JTM4051B	3.6V	4.25-6.5V	1.2A		3.6V/4.2V	±1%	2.9V	25uA	ESOP8	量产	单节磷酸铁锂
	4.2V				以上可调						充电应用
JTM5051	4.2V	3.8V-6.5V	1A/0.5A		4.2V	±1%	2.9V	450uA	ESOP8	量产
									SOP8



开关模式单节锂电充电IC

产品型号	输出	输入	最大充	充电	充电截	精度	涓流电	功耗	封装	状态	替代型号
	电压	电压	电电流	类型	止电压		截止电压		形式
JTM4050	4.19V	4.5-6.5V	2A	开关式	4.19V	±1%	2.9V	3mA	ESOP-8	量产
				单节锂
				电充电
JTM4050B	4.2V	3.8-6.5V	2.5A	开关式	4.2V	±1%	2.9V	190uA	ESOP8	量产
				单节锂
				电充电
				同步整流
JTM4050C	4.35V	3.8-6.5V	2.5A	开关式	4.35V	±1%	2.9V	190uA	ESOP8	量产	4.35V/三星电芯
				单节锂							充电应用
				电充电
				同步整流
JTM4052	4.2V	4.5-5.5V	2.5A	开关式	4.2V	±1%	2.9V	70uA	ESOP8	量产
				单节锂
				电充电
				同步整流
JTM4052B	4.35V	4.4-5.5V	2.5A	开关式	4.35V	±1%	2.5V	70uA	ESOP8	量产	4.35V/三星电芯
				单节锂							充电应用
				电充电
				同步整流
JTM4053	4.2V	4.5-28V	扩流4A	开关式	4.2V	±1%	2.9V	1mA	SSOP-10	量产
				单节锂
				电充电


我司的JTM4054/SOT-25有以下优点：
1.各脚ESD电压都在3000V以上。
2.充电完成以后充电指示灯彻底熄灭，没有弱亮状态。
3.充电完成以后电池反向漏电流小于3UA。
4.封装材料采用独有的散热材料，实际最大充电电流可达800MA。
5.封装采用7根25UM的金线。
6.输出电压为标准的4.20V+-1%。
7.工作温度范围：-40°C---+85°C.
8.我司的JTM4054出移动电源、充电器等要求大充电电流的场合有优势。
9.和市场那种低端的只有400mA/充满电灯不灭的产品不同的。

我司的JTM4056/SOP8-PP有以下优点：
1.可编程的最大充电电流可达1.5A。
2.双灯指示，充电状态双输出，带未接电池和故障状态指示。
3.带锂电池反接保护功能。
4.输出电压为标准的4.20V+-1%。
5.输入电压范围4.0-8.0V,耐压可达8V.
6.工作温度范围：-40°C---+85°C.
7.各脚ESD电压都在3000V以上。
8.我司的JTM4056出移动电源、充电器等要求大充电电流的场合有优势。
9.和市场那种低端的只有800mA产品不同的。