中文
EnglishJTM8120,JTM8120AThe devices are USB dedicated charging ,The devices are USB dedicated charging port (DCP) controllers. An auto-detect feature monitors USB data line voltage
摘要：JTM8120,JTM8120AThe devices are USB dedicated charging ,The devices are USB dedicated charging port (DCP) controllers. An auto-detect feature monitors USB data line voltage
目录
一,产品概述(General Description)
The devices are USB dedicated charging port (DCP) controllers. An auto-detect feature monitors USB data line voltage, and automatically provides the correct electrical signatures on the data lines to charge compliant devices among the following dedicated
charging schemes:
1. Divider 1 DCP, required to apply 2.7 V and 2.7 V
on the D+ and D- Lines respectively
2. BC1.2 DCP, required to short the D+ Line to the
D– Line
3. Chinese Telecom Standard YD/T 1591-2009
Shorted Mode, required to short the D+ Line to the
D– Line
4. 1.2 V on both D+ and D– Lines
二</span>.产品特点(Features)
Supports USB DCP Shorting D+ Line to D–</strong>
Line per USB Battery Charging Specification,
Revision 1.2 (BC1.2)
Supports Shorted Mode (Shorting D+ Line to
D- Line) per Chinese Telecommunication
Industry Standard YD/T 1591-2009
Supports USB DCP Applying 2.7 V on D+ Line
and 2.7 V on D- Line
Supports USB DCP Applying 1.2 V on D+ and
D– Lines
Automatically Switch D+ and D- Lines
Connections for an Attached Device
Dual USB Port Controller
(JTM8120A)
Single USB Port Controller
(JTM8120)
Operating Range: 4.5 V to 5.5 V
Available in SOT23-6 Package
三</span>,应用范围 (Applications)
Vehicle USB Power Charger
AC-DC Adapter with USB Port
Other USB Charger
四</span>,产品封装图 (Package)
| NO. | NAME | TYPE(1) | DESCRIPTION |
| 1 | DP1 | I/O | Connected to the D+ or D– line of USB connector, provide the correct voltage with attached portable equipment for DCP detection. |
| 2 | GND | G | Ground connection |
| 3 | DP2 | I/O | Connected to the D+ or D– line of USB connector, provide the correct voltage with attached portable equipment for DCP detection. |
| 4 | DM2 | I/O | Connected to the D+ or D– line of USB connector, provide the correct voltage with attached portable equipment for DCP detection |
| 5 | IN | P | Power supply. Connect a ceramic capacitor with a value of 0.1-μF or greater from the IN pin to GND as close to the device as possible. |
| 6 | DM1 | I/O | Connected to the D+ or D– line of USB connector, provide the correct voltage with attached portable equipment for DCP detection |
五</span>,电路原理图</span>
六</span>.产品PDF文档
 | JTM8120 |
七</span>,功能概述
OVERVIEW
The following overview references various industry standards. It is always recommended to consult the latest standard
to ensure the most recent and accurate information.
Rechargeable portable equipment requires an external power source to charge its batteries. USB ports are convenient
locations for charging because of an available 5-V power source. Universally accepted standards are required to
ensure host and client-side devices meet the power management requirements. Traditionally, USB host ports following
the USB 2.0 Specification must provide at least 500 mA to downstream client-side devices. Because multiple USB
devices can be attached to a single USB port through a bus-powered hub, it is the responsibility of the client-side
device to negotiate the power allotment from the host to guarantee the total current draw does not exceed 500 mA. In
general, each USB device can subsequently request more current, which is granted in steps of 100 mA up 500 mA total.
The host may grant or deny the request based on the available current.
Additionally, the success of the USB technology makes the micro-USB connector a popular choice for wall adapter
cables. This allows a portable device to charge from both a wall adapter and USB port with only one connector.
One common difficulty has resulted from this. As USB charging has gained popularity, the 500-mA minimum defined by
the USB 2.0 Specification or 900 mA defined in the USB 3.0 Specification, has become insufficient for many handsets,
tablets and personal media players (PMP) which have a higher rated charging current. Wall adapters and car chargers
can provide much more current than 500 mA or 900 mA to fast charge portable devices. Several new standards have
been introduced defining protocol handshaking methods that allow host and client devices to acknowledge and draw
additional current beyond the 500 mA (defined in the USB 2.0 Specification) or 900 mA (defined in the USB 3.0
Specification) minimum while using a single micro-USB input connector.
The devices support four of the most common protocols:
USB Battery Charging Specification, Revision 1.2 (BC1.2)
lChinese Telecommunications Industry Standard YD/T 1591-2009
Divider mode
1.2 V on both D+ and D– lines
The following overview references various industry standards. It is always recommended to consult the latest standard
to ensure the most recent and accurate information.
Rechargeable portable equipment requires an external power source to charge its batteries. USB ports are convenient
locations for charging because of an available 5-V power source. Universally accepted standards are required to
ensure host and client-side devices meet the power management requirements. Traditionally, USB host ports following
the USB 2.0 Specification must provide at least 500 mA to downstream client-side devices. Because multiple USB
devices can be attached to a single USB port through a bus-powered hub, it is the responsibility of the client-side
device to negotiate the power allotment from the host to guarantee the total current draw does not exceed 500 mA. In
general, each USB device can subsequently request more current, which is granted in steps of 100 mA up 500 mA total.
The host may grant or deny the request based on the available current.
Additionally, the success of the USB technology makes the micro-USB connector a popular choice for wall adapter
cables. This allows a portable device to charge from both a wall adapter and USB port with only one connector.
One common difficulty has resulted from this. As USB charging has gained popularity, the 500-mA minimum defined by
the USB 2.0 Specification or 900 mA defined in the USB 3.0 Specification, has become insufficient for many handsets,
tablets and personal media players (PMP) which have a higher rated charging current. Wall adapters and car chargers
can provide much more current than 500 mA or 900 mA to fast charge portable devices. Several new standards have
been introduced defining protocol handshaking methods that allow host and client devices to acknowledge and draw
additional current beyond the 500 mA (defined in the USB 2.0 Specification) or 900 mA (defined in the USB 3.0
Specification) minimum while using a single micro-USB input connector.
The devices support four of the most common protocols:
USB Battery Charging Specification, Revision 1.2 (BC1.2)
lChinese Telecommunications Industry Standard YD/T 1591-2009
Divider mode
1.2 V on both D+ and D– lines
| 线性<a href="http://www.jtm-ic.com/a/xinwenzhongxin/" target="_blank" style="padding: 0px; margin: 0px; color: rgb(37, 110, 177); text-decoration: none;">单节锂电充电IC | |||||||||||
| 产品型号 | 输出 | 输入 | 最大充电<a href="http://www.jtm-ic.com/a/xinwenzhongxin/" target="_blank" style="padding: 0px; margin: 0px; color: rgb(37, 110, 177); text-decoration: none;">电流 | 充电类型 | 充电截止电压 | 精度 | 涓流充电截止电压 | 功耗</span> | 封装 | 状态</td> | 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</td> | |
| 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</td> | 精度 | 涓流电</td> | 功耗</td> | 封装 | 状态</td> | 替代型号 |
| 电压 | 电压 | 电电流</td> | 类型 | 止电压</td> | 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</td> | |||||||||||
| 电充电</td> | |||||||||||
| JTM4050B | 4.2V | 3.8-6.5V | 2.5A | 开关式 | 4.2V | ±1% | 2.9V | 190uA | ESOP8 | 量产 | |
| 单节锂</td> | |||||||||||
| 电充电</td> | |||||||||||
| 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</td> | 充电应用 | ||||||||||
| 电充电</td> | |||||||||||
| 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</td> | |||||||||||
| 电充电</td> | |||||||||||
| 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</td> | 充电应用 | ||||||||||
| 电充电</td> | |||||||||||
| 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</td> | |||||||||||
| 电充电</td> | |||||||||||
| 我司的JTM4054/SOT-25有以下<a href="http://www.jtm-ic.com/a/xinwenzhongxin/xinpinjishu/" target="_blank" style="padding: 0px; margin: 0px; color: rgb(37, 110, 177); text-decoration: none;">优点：</td> | |||||||||||
| 1.各脚ESD电压都在3000V以上。</td> | |||||||||||
| 2.充电完成以后充电指示灯彻底熄灭，没有弱亮状态。</td> | |||||||||||
| 3.充电完成以后电池反向漏电流小于3UA。</td> | |||||||||||
| 4.封装材料采用独有的散热<a href="http://www.jtm-ic.com/a/xinwenzhongxin/" target="_blank" style="padding: 0px; margin: 0px; color: rgb(37, 110, 177); text-decoration: none;">材料，实际最大充电电流可达800MA。</td> | |||||||||||
| 5.封装采用7根25UM的金线。</td> | |||||||||||
| 6.输出电压为标准的4.20V+-1%。</td> | |||||||||||
| 7.工作温度范围：-40°C---+85°C. | |||||||||||
| 8.我司的JTM4054出<a href="http://www.jtm-ic.com/a/xinwenzhongxin/" target="_blank" style="padding: 0px; margin: 0px; color: rgb(37, 110, 177); text-decoration: none;">移动电源、充电器等要求大充电电流的场合有优势。</td> | |||||||||||
| 9.和<a href="http://www.jtm-ic.com/a/xinwenzhongxin/xinpinjishu/" target="_blank" style="padding: 0px; margin: 0px; color: rgb(37, 110, 177); text-decoration: none;">市场那种低端的只有400mA/充满电灯不灭的产品不同的。</td> | |||||||||||
| 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。</td> | |||||||||||
| 2.双灯指示，充电状态双输出，带未接电池和故障状态指示。</td> | |||||||||||
| 3.带<a href="http://www.jtm-ic.com/a/xinwenzhongxin/" target="_blank" style="padding: 0px; margin: 0px; color: rgb(37, 110, 177); text-decoration: none;">锂电池</span>反接保护功能。</td> | |||||||||||
| 4.输出电压为标准的4.20V+-1%。</td> | |||||||||||
| 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。</td> | |||||||||||
| 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。</td> | |||||||||||
| 9.和市场那种低端的只有800mA产品不同的。</td> | |||||||||||
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