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参数资料
| 型号： | PWL6030B1AACMR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PBGA187 |
| 封装： | 7 X 7 MM, 0.40 MM PITCH, GREEN, FCBGA-187 |
| 文件页数： | 64/97页 |
| 文件大小： | 937K |
| 代理商： | PWL6030B1AACMR |
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SWCS045B
– SEPTEMBER 2010 – REVISED JUNE 2011
charging. During hardware-controlled charging, the LED driver is enabled only if the USB charger or external
charging IC is charging the battery, and it is turned off if the battery is not charged (for example, because of
charger overvoltage). The supply for the charging indicator LED driver is generated from CHRG_PMID or VAC,
depending on the active charging path. The CHRG_PMID pin is used instead of the VBUS line so that the LED
indicator current is included into the VBUS input current limit.
During power on, software can control the indicator LED regardless of the charging. The supply for the LED can
be selected as CHRG_PMID, VAC, or CHRG_LED_IN. The current level can also be selected and the dimming
function can be used. Dimming is done with a 128-Hz PWM signal, which has 255 linear steps. The LED output
pin has a selectable pulldown when the module is disabled; the pulldown is enabled by default.
BOOST mode
For OTG operation, the TWL6030 device can supply VBUS (5 V) in boost mode. In this mode, the TWL6030
device delivers up to 200 mA current to the USB connector. Boost mode can be enabled through register access
by writing OPA_MODE in the CHARGERUSB_CTL1 register. In VBUS supply generation mode, the TWL6030
device can detect a short circuit in the VBUS line. If a short circuit is detected, the VBUS voltage generation
stops and an interrupt is generated to the host processor.
Supported Batteries
TWL6030 supports the following battery technologies:
Li-Ion
Li-Ion polymer
Cobalt-Ni-Manganese
LiCoO2
LiNiMnCoO2
Li-SiAn
LiFePo4
Recent battery technology such as Li-SiAn and LiFePo4 presents a flat discharge region in the range of 3.2
–3.3
V; technologies such as LiCoO2 or LiNiMnCoO2 presents a flat discharge region in the range of 3.6
–3.7 V. This
results in different VBATMIN thresholds, depending on the type of battery used in the system. As a
consequence, the VBATMIN thresholds are programmable.
Supported Charging Sources
The following chargers are supported with the integrated switch-mode charger from the USB connector:
Dedicated charging port
Charging downstream port
Charger full-filling specification YD/T 1591-2006
To configure the charger for proper operation mode depending on the charging source characteristics, the
charging source type must be detected and identified. The detection of the charger attached to the USB
connector is made inside the TWL6030 device by detecting a voltage greater than VINmin on charger input.
To minimize the capacitance of the data lines, the type of the charger connected to the USB connector can be
identified by the USB PHY, and the information of the maximum current drawn from the charging source must be
transmitted to the TWL6030 device with a dedicated signal. The TWL6030 device enables detection by delivering
VUSB supply. The charger detection circuitry must deliver a CMOS level (VUSB) signal to the TWL6030 device,
CHRG_DET_N, by default a high logic level indicating that USB charging port is detected. The polarity of the
charger detection signal can be selected with an EPROM bit. The identification of the accessory charger adapter
(ACA) occurs in the TWL6030 device.
The TWL6030 device can be interfaced with an ACA (external to the terminal) to support the charging from the
USB charger and USB communication to other USB devices from the USB port. See the USB OTG section for a
description of ACA detection.
Copyright
2010–2011, Texas Instruments Incorporated
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