Cinterion BGS3, Hardware Interface Description

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BGS3 Hardware Interface Description
Contents
109
BGS3_HD_v01.000d Page 3 of 109 2010-03-26
Confidential / Released
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Contents
0 Document History ...................................................................................................... 8
1 Introduction ............................................................................................................... 10
1.1 Related Documents ......................................................................................... 10
1.2 Terms and Abbreviations ................................................................................. 10
1.3 Regulatory and Type Approval Information ..................................................... 14
1.3.1
Directives and Standards.................................................................... 14
1.3.2 SAR requirements specific to portable mobiles .................................. 16
1.3.3 Safety Precautions.............................................................................. 17
2 Product Concept ....................................................................................................... 18
2.1 Key Features at a Glance ................................................................................ 18
2.2 BGS3 System Overview .................................................................................. 20
2.3 Circuit Concept ................................................................................................ 21
3 Application Interface................................................................................................. 22
3.1 Operating Modes ............................................................................................. 23
3.2 Power Supply................................................................................................... 24
3.2.1
Minimizing Power Losses ................................................................... 24
3.2.2 Measuring the Supply Voltage VBATT+ ............................................. 25
3.2.3 Monitoring Power Supply by AT Command ........................................ 25
3.3 Power Up / Power Down Scenarios................................................................. 26
3.3.1
Turn on BGS3 ..................................................................................... 26
3.3.1.1
Turn on BGS3 Using Ignition Line IGT ................................ 26
3.3.1.2 Configuring the IGT Line for Use as ON/OFF Switch.......... 29
3.3.1.3 Turn on BGS3 Using the VCHARGE Signal ....................... 29
3.3.1.4 Reset BGS3 via AT+CFUN Command................................ 30
3.3.1.5 Reset or Turn off BGS3 in Case of Emergency .................. 30
3.3.1.6 Using EMERG_OFF Signal to Reset Application(s) or
External Device(s)............................................................... 30
3.3.2 Signal States after Startup .................................................................. 31
3.3.3 Turn off BGS3 ..................................................................................... 32
3.3.3.1
Turn off BGS3 Using AT Command .................................... 32
3.3.4 Automatic Shutdown ........................................................................... 33
3.3.4.1
Thermal Shutdown .............................................................. 34
3.3.4.2 Deferred Shutdown at Extreme Temperature Conditions.... 35
3.3.4.3 Undervoltage Shutdown ...................................................... 35
3.3.4.4 Overvoltage Shutdown ........................................................ 36
3.4 Automatic GPRS Multislot Class Change ........................................................ 37
3.5 Charging Control.............................................................................................. 38
3.5.1
Hardware Requirements ..................................................................... 38
3.5.2 Software Requirements ...................................................................... 38
3.5.3 Battery Pack Requirements ................................................................ 39
3.5.4 Batteries Tested for Use with BGS3 ................................................... 40
3.5.5 Charger Requirements........................................................................ 41