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| 型号： | BQ51013ARHLR |
| 厂商： | Texas Instruments |
| 文件页数： | 23/45页 |
| 文件大小： | 0K |
| 描述： | IC WIRELESS PWR RCVR 20QFN |
| 标准包装： | 1 |
| 应用： | 无线电源接收器 |
| 电流 - 电源： | 1.5A |
| 电源电压： | 4 V ~ 10 V |
| 工作温度： | 0°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-VFQFN 裸露焊盘 |
| 供应商设备封装： | 20-QFN-EP（4.50x3.50） |
| 包装： | 标准包装 |
| 其它名称： | 296-30568-6 |
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bq51014 is Not Recommended For New Designs
SLUSAY6B – MARCH 2012 – REVISED OCTOBER 2013
Input Overvoltage
If the input voltage suddenly increases in potential (e.g. a change in position of the equipment on the charging
pad), the voltage-control loop inside the bq5101x becomes active, and prevents the output from going beyond
V OUT-REG . The receiver then starts sending back error packets to the transmitter every 30ms until the input
voltage comes back to the V RECT-REG target, and then maintains the error communication every 250ms.
If the input voltage increases in potential beyond V OVP , the IC switches off the LDO and communicates to the
primary to bring the voltage back to V RECT-REG . In addition, a proprietary voltage protection circuit is activated by
means of C CLAMP1 and C CLAMP2 that protects the IC from voltages beyond the maximum rating of the IC (e.g.
20V).
Adapter Enable Functionality and EN1/EN2 Control
Figure 3 is an example application that shows the bq5101x used as a wireless power receiver that can power
mutliplex between wired or wireless power for the down-system electronics. In the default operating mode pins
EN1 and EN2 are low, which activates the adapter enable functionality. In this mode, if an adapter is not present
the AD pin will be low, and AD-EN pin will be pulled to the higher of the OUT and AD pins so that the PMOS
between OUT and AD will be turned off. If an adapter is plugged in and the voltage at the AD pin goes above
3.6V then wireless charging is disabled and the AD-EN pin will be pulled approximately 4V below the AD pin to
connect AD to the secondary charger. The difference between AD and AD-EN is regulated to a maximum of 7V
to ensure the V GS of the external PMOS is protected.
The EN1 and EN2 pins include internal 200k Ω pull-down resistors, so that if these pins are not connected
bq5101x defaults to AD-EN control mode. However, these pins can be pulled high to enable other operating
Table 2.
EN1
0
0
1
1
EN2
0
1
0
1
Result
Adapter control enabled. If adapter is present then secondary charger is
powered by adapter, otherwise wireless charging is enabled when wireless
power is available. Communication current limit is enabled.
Disables communication current limit.
AD-EN is pulled low, whether or not adapter voltage is present. This feature
can be used, e.g., for USB OTG applications.
Adapter and wireless charging are disabled, i.e., power will never be
delivered by the OUT pin in this mode.
Table 3.
Adaptive
EN1
EN2
Wireless Power
Wired Power
OTG Mode
Communication
EPT Termination
Limit
0
0
0
1
Enabled
Enabled
Priority (1)
Priority (1)
Disabled
Disabled
Enabled
Disabled
Not Sent to Tx
Not Sent to Tx
1
0
Disabled
Enabled
Enabled
(2)
N/A
Sent to Tx
1
1
Disabled
Disabled
Disabled
N/A
Sent to Tx
(1)
(2)
If both wired and wireless power are present, wired power is given priority.
Allows for a boost-back supply to be driven from the output terminal of the Rx to the adapter port via the external back-to-back PMOS
FET.
As described in Table 2 , pulling EN2 high disables the adapter mode and only allows wireless charging. In this
mode the adapter voltage will always be blocked from the OUT pin. An application example where this mode is
useful is when USB power is present at AD, but the USB is in suspend mode so that no power can be taken from
the USB supply. Pulling EN1 high enables the off-chip PMOS regardless of the presence of a voltage. This
function can be used in USB OTG mode to allow a charger connected to the OUT pin to power the AD pin.
Finally, pulling both EN1 and EN2 high disables both wired and wireless charging.
Copyright ? 2012–2013, Texas Instruments Incorporated
Product Folder Links: bq51013A bq51014
23
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相关代理商/技术参数 |
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| BQ51013ARHLT | 功能描述:其他电源管理 Qi Int Wireless Pwr Receiver Solution RoHS:否 制造商:Texas Instruments 输出电压范围: 输出电流:4 mA 输入电压范围:3 V to 3.6 V 输入电流: 功率耗散: 工作温度范围:- 40 C to + 110 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-48 封装:Reel |
| BQ51013AYFPR | 功能描述:电池管理 Qi Int Wireless Pwr Receiver Solution RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| BQ51013AYFPT | 功能描述:电池管理 Qi Int Wireless Pwr Receiver Solution RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| BQ51013B | 制造商:TI 制造商全称:Texas Instruments 功能描述:Highly Integrated Wireless Receiver Qi (WPC V1.1) Compliant Power Supply |
| BQ51013BEVM-764 | 制造商:Texas Instruments 功能描述: 制造商:Texas Instruments 功能描述:CPU |
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