PM7540 80-VD619-3 USER GUIDE

sxleesky

那个大侠有这个手册，共享下，谢谢。
sxleesky@sina.com

sxleesky

那位大侠有，给发到邮箱也行，现在想了解下高通这方面
sxleesky@sina.com；谢谢

riniya

是不是这个东西啊，


1 Introduction
1.1 Documentation overview...................................................................................... 10
1.2 Concise device description................................................................................... 11
1.3 Terms and acronyms............................................................................................. 14
2 Pin Definitions
2.1 Pin assignments .................................................................................................... 16
2.2 Pin descriptions .................................................................................................... 17
2.2.1 General housekeeping pins .................................................................. 18
2.2.2 IC-level interface pins .......................................................................... 20
2.2.3 Input power management pins ............................................................. 22
2.2.4 Multipurpose pins ................................................................................ 24
2.2.5 Output voltage regulation pins ............................................................. 25
2.2.6 User interface pins ............................................................................... 29
2.2.7 Power supply input pins....................................................................... 31
2.2.8 Ground pins.......................................................................................... 31
3 Device Controls and Operating Modes
3.1 SBI configurations for different MSM devices .................................................... 32
3.1.1 MSM6550 and earlier SBI configurations ........................................... 32
3.1.2 MSM6800 and later SBI configurations .............................................. 32
3.1.3 Establishing the SBI configuration ...................................................... 33
3.2 Controlling the PM7540 IC.................................................................................. 33
3.3 PM7540 IC operating modes................................................................................ 34
3.4 Timing topics........................................................................................................ 34
4 Input Power Management
4.1 Input circuits overview......................................................................................... 36
4.2 External supply detection ..................................................................................... 38
4.3 USB_VBUS power source ................................................................................... 39
4.4 Pass transistor controls and limiting dissipation .................................................. 39
4.5 Voltage regulation (VDD or VBAT)..................................................................... 40
4.6 Current regulation, monitoring, and protection.................................................... 41
4.7 Main battery charging .......................................................................................... 43
4.7.1 Trickle charging ................................................................................... 44
4.7.2 Constant current charging .................................................................... 45
4.7.3 Constant voltage charging.................................................................... 48
4.7.4 Pulse charging ...................................................................................... 50
4.8 Coin cell charging ................................................................................................ 54
4.9 Backup voltage and external SRAM.................................................................... 55
4.10 Battery voltage detector........................................................................................ 56
4.11 Undervoltage lockout ........................................................................................... 57
4.12 Sudden momentary power loss (SMPL)............................................................... 58
4.13 VDD collapse protection circuit

yangmtk

怎么没有pdf