- 您现在的位置：买卖IC网 > PDF目录16590 > MC13892JVLR2 (Freescale Semiconductor)IC PMU I.MX51/37/35/27 186MAPBGA PDF资料下载
参数资料
| 型号： | MC13892JVLR2 |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 99/158页 |
| 文件大小： | 0K |
| 描述： | IC PMU I.MX51/37/35/27 186MAPBGA |
| 标准包装： | 1,000 |
| 应用： | 电池管理，显示器（LED 驱动器），手持/移动设备，电源 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 186-LFBGA |
| 供应商设备封装： | 186-PBGA（12x12） |
| 包装： | 带卷 (TR) |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页第89页第90页第91页第92页第93页第94页第95页第96页第97页第98页当前第99页第100页第101页第102页第103页第104页第105页第106页第107页第108页第109页第110页第111页第112页第113页第114页第115页第116页第117页第118页第119页第120页第121页第122页第123页第124页第125页第126页第127页第128页第129页第130页第131页第132页第133页第134页第135页第136页第137页第138页第139页第140页第141页第142页第143页第144页第145页第146页第147页第148页第149页第150页第151页第152页第153页第154页第155页第156页第157页第158页
FUNCTIONAL DEVICE OPERATION
BATTERY INTERFACE AND CONTROL
f)
If the enumeration is successful to get the stepped up current the processor will hold WDI high and continues with the
booting procedure.
? When the SPI is activated, the LPB interrupt LPBI can be cleared; other unmasked interrupts may now become active.
When leaving watchdog phase for the On mode, the interrupts will work 'normally' even if LPBI is not cleared.
? The SPI bit ACKLPB bit is set to enable the internal trickle charger. The charge LED gets activated. When the battery
crosses the BATTMIN threshold the M3.transistor is automatically closed and the battery is charged with the current not
taken by the application.
? When BP exceeds BPON, the charger state machine will successfully exit the trickle charge mode. This will make
LPBS = 0 which generates a LPBI. This interrupt will inform the processor that a full turn on is allowed. Once this
happens the application code is allowed to run full speed.
BATTERY THERMISTOR CHECK OPERATION
By default, the battery thermistor value is taken into account for charging the battery. Upon detection of a supply at
CHRGRAW, the core circuitry powers up including VCORE. As soon as VCORE is ready, the output GPO1 is made active high,
independently of the state of GPO1EN bit. The resulting voltage at ADIN5 is compared to the corresponding temperature
thresholds. If the voltage at ADIN5 is within range, the charging will behave as described thus far, however if out of range the
charger state machine will go to a wait state, pause the charge timers, and no current will be sourced to the battery. When the
temperature comes back in range, charging is continued again. The actual behavior depends on the configuration the charger
circuitry at the moment the temperature range is exceeded.
Table 80. Battery Thermistor Check Charger States
Configuration
State for temperature
out of range
State for temperature back in range
ICin “On” State IC in “Off” State
Internal precharging on a charger
Internal precharging on USB in USB
Low-power Boot
All other non fault charging modes
and configurations
M1M2 = 560 mA / SPI setting,
M3 = Open, Itrickle = 0mA
M1M2 = 400 mA
M3 = Open, Itrickle = 0mA
M1M2 = 0 mA
M3 Closed
Internal precharge
Low-power Boot Precharge
Initialization
Initialization
Initialization
Initialization
The battery thermistor check can be disabled by setting the THCHKB bit. This is useful in applications where battery packs
without thermistor may be used. This bit defaults to '0', which means that initial power up only can be achieved with an already
charged battery pack or on a charger, but not on a USB Host without low-power boot support. Alternatively, one can bias ADIN5
to get within the temperature window. Setting the SPI bit to disable the thermistor check will also inhibit the automatic enabling
of the GPO1 output. The GPO1 output still remains controllable through GPO1EN. As an additional feature, the charger state
machine will end up in an out of temperature state when the die temperature is below -20 °C, independent of the setting of the
THCHKB bit.
Notes :
? When using the battery charger as the only source of power, as in a battery-less application, the following precautions
should be observed:
? It is still necessary to connect ADIN5 to either VCOREDIG or a midpoint of a divider from GPIO1 to ground since the battery
charger will still interpret this voltage as the battery pack thermistor by default.
? Very careful budgeting of the total current consumption and voltage standoff from CHRGRAW to BPSNS must be made,
since the power limiter is operational by default, and a battery less system won't have a source of current if the power
dissipation limit is reached.
? If operating from a USB host the unit load limit (100 mA max.) must still be observed.
? If operating from a “wall charger”, and if there is no battery, there is an period of approximately 85 ms after RESETB is
released, but before the current limit is set to a nominal 560 mA. If the total current demand is greater than this limit, the
voltage may collapse and RESETB may pulse a few times (depending in part in the system load and dependence on
RESETB.) Therefore, at the end of this time, RESETB may or may not be active. It may be necessary to use one of the
other turn on events (such as PWRONx) to turn it back on.
MC13892
Analog Integrated Circuit Device Data
Freescale Semiconductor
99
相关PDF资料 |
PDF描述 |
|---|---|
| ECM15DTAS | CONN EDGECARD 30POS R/A .156 SLD |
| GBM25DRTN-S13 | CONN EDGECARD 50POS .156 EXTEND |
| AK670M-5-R | CABLE MINI USB 4PIN 5M 1.1 VERS |
| EEM28DSXI | CONN EDGECARD 56POS DIP .156 SLD |
| MC13892JVKR2 | IC PMU I.MX51/37/35/27 139MAPBGA |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MC13892VK | 功能描述:PMIC 解决方案 PMUIC w/4 buck/12 LDO rg RoHS:否 制造商:Texas Instruments 安装风格:SMD/SMT 封装 / 箱体:QFN-24 封装:Reel |
| MC13892VKR2 | 功能描述:PMIC 解决方案 PMUIC w/4 buck/12 LDO rg RoHS:否 制造商:Texas Instruments 安装风格:SMD/SMT 封装 / 箱体:QFN-24 封装:Reel |
| MC13892VL | 功能描述:PMIC 解决方案 5/28V BCK/BST PMUIC RoHS:否 制造商:Texas Instruments 安装风格:SMD/SMT 封装 / 箱体:QFN-24 封装:Reel |
| MC13892VLR2 | 功能描述:PMIC 解决方案 5/28V BCK/BST PMUIC RoHS:否 制造商:Texas Instruments 安装风格:SMD/SMT 封装 / 箱体:QFN-24 封装:Reel |
| MC1-38RX | 制造商:3M Electronic Products Division 功能描述:NON INSL COPPER SEAMLESS RING TE 制造商:3M Electronic Products Division 功能描述:80610253439 制造商:3M Electronic Products Division 功能描述:80610253439 MC1-38RX S/LOK RING TERMINAL |
发布紧急采购，3分钟左右您将得到回复。