參數(shù)資料
型號(hào)： TWL6030B1A4CMR
廠商： TEXAS INSTRUMENTS INC
元件分類： 電源管理
英文描述： 1-CHANNEL POWER SUPPLY SUPPORT CKT, PBGA187
封裝： 7 X 7 MM, 0.40 MM PITCH, GREEN, FCBGA-187
文件頁(yè)數(shù)： 57/97頁(yè)
文件大?。?/td> 937K
代理商： TWL6030B1A4CMR
SWCS045B
– SEPTEMBER 2010 – REVISED JUNE 2011
– Input current limit
– Fast-charge/termination current
– Charge voltage
– Input voltage collapse
– Safety timer
– Termination enable
Synchronous fixed-frequency PWM controller operating at 3 MHz with 0% to 99.5% duty-cycle
High-accuracy voltage and current regulation
Automatic high-impedance mode for low power consumption
Safety timer with reset control
Reverse leakage protection prevents battery drainage
Thermal regulation and protection
I/O overvoltage protection
Output for charging LED indicator
Automatic charge current setting (preventing charge input from collapsing) as charge time optimization
Boost mode operation for USB OTG supply (VBUS supply at 5 V/200 mA current)
The TWL6030 device supports a wide variety of rechargeable lithium-based battery technologies. Recent battery
technologies, such as Li-SiAn and LiFePo4, present a flat discharge region in the range of 3.2
–3.3 V;
technologies such as LiCoO2 and LiNiMnCoO2 present a flat discharge region in the range of 3.6
–3.7 V. To
support the different battery chemistries effectively, the TWL6030 device has programmable VBATMIN
thresholds.
The charging procedure consists of hardware-controlled preconditioning and precharging phases and
software-controlled full-charging phase. The charger also performs monitoring functions:
AC charger detection
VBUS detection
Battery presence detection
VBUS overvoltage detection
Battery overvoltage detection
Battery end-of-charge detection
Thermal protection
Watchdogs
Charging Phases
Preconditioning
Preconditioning is automatically enabled as soon as the charging source is detected and operates in a constant
current charging mode. During preconditioning the battery voltage is below 2.1 V (VBAT_SHORT) and the
charging current is limited to 30 mA (IBAT_SHORT). In this mode, the charger uses a linear charging operation
mode. This phase detects a defective (shorted) battery. As soon as the battery voltage is above 2.1 V, a
precharging phase is entered automatically.
Precharge Phase (Hardware Controlled)
The precharging phase is entered when battery voltage is above 2.1 V (VBAT_SHORT) and the charging source
is detected. If the charging source collapses during the precharge phase, the precharge current is automatically
reduced to a value that keeps the input voltage high enough to ensure proper operation of the precharge
circuitry.
The TWL6030 device supports two precharging modes:
Slow constant current precharging for 2.1 V
< VBAT < 3.54 V (VBUS current is limited to 92 mA from USB
standard downstream port)
Fast constant current precharging for 2.1 V
< VBAT < 3.54 V (VBUS current is limited to 470 mA and battery
charging current set to default charging current value when USB charging port detected)
60
Copyright
2010–2011, Texas Instruments Incorporated
相關(guān)PDF資料
PDF描述
TWL6030B1A0CMRR 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PBGA187
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TWL6030B1A4CMRR 功能描述:PMIC 解決方案 Fully Integrated Pwr Mgmt RoHS:否 制造商:Texas Instruments 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel
TWL6030B1AACMR 功能描述:PMIC 解決方案 Fully Integrated Pwr Mgmt RoHS:否 制造商:Texas Instruments 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel
TWL6030B1AACMRR 功能描述:PMIC 解決方案 Fully Integrated Pwr Mgmt RoHS:否 制造商:Texas Instruments 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel
TWL6032 制造商:TI 制造商全稱:Texas Instruments 功能描述:Fully Integrated Power Management with Power Path and Battery Charger
TWL6032A1B0YFFR 功能描述:PMIC 解決方案 Fully Integrated Pwr Mgmt RoHS:否 制造商:Texas Instruments 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel
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