JTM8120,JTM8120AThe devices are USB dedicated charging port

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

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.产品特点(Features)

Supports USB DCP Shorting D+ Line to D–
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,应用范围 (Applications)
Vehicle USB Power Charger
AC-DC Adapter with USB Port
Other USB Charger

四,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

(责任编辑：oumao18)