参数资料
型号: LTC4155IUFD#TRPBF
厂商: Linear Technology
文件页数: 35/52页
文件大小: 0K
描述: IC I2C POWER MANAGER DUAL 28QFN
标准包装: 2,500
系列: PowerPath™
功能: 充电管理,电源管理
电池化学: 锂离子(Li-Ion)、锂聚合物(Li-Pol)
电源电压: 4.35 V ~ 5.5 V
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 28-WFQFN 裸露焊盘
供应商设备封装: 28-QFN(4x5)
包装: 带卷 (TR)
LTC4155
OPERATION
Table 5. Input Undervoltage Current Limit Control
Table 8. Input Current Limit Settings
INPUT UNDERVOLTAGE CURRENT LIMIT CONTROL
REG0
INPUT CURRENT LIMIT SETTINGS
REG0, REG1
SUB ADDRESS
DIRECTION
0x00
DISABLE_INPUT_UVCL
Write and Readback
SUB ADDRESS
SUB ADDRESS
0x00
0x01
USB Input Current Limit USBILIM[4.0]
Wall Input Current Limit WALLILIM[4:0]
DISABLE_INPUT_
DIRECTION
Write and Readback
UVCL
D7
D6
D5
D4
D3
D2
D1
D0
WALLILIM
Enabled*
0
USBILIM
D7
D6
D5
D4
D3
D2
D1
D0
Disabled
*Default setting
1
100mA Max
(USB Low Power)*
500mA Max
(USB High Power)
0
0
0
0
0
0
0
0
0
1
Table 6. Overtemperature Battery Conditioner
OVERTEMPERATURE BATTERY CONDITIONER
SUB ADDRESS 0x00 EN_BAT_CONDITIONER
DIRECTION Write and Readback
REG0
600mA Max
700mA Max
800mA Max
900mA Max
(USB 3.0)
0
0
0
0
0
0
0
0
0
0
1
1
1
1
0
0
0
1
0
1
EN_CONDITIONER
D7
D6
D5
D4
D3
D2
D1
D0
1000mA Typical
0
0
1
1
0
Disabled*
Enabled Above
60°C
*Default setting
0
1
1250mA Typical
1500mA Typical
1750mA Typical
2000mA Typical
2250mA Typical
0
0
0
0
0
0
1
1
1
1
1
0
0
0
0
1
0
0
1
1
1
0
1
0
1
Table 7. USB On-The-Go ID Pin Autonomous Start-Up
USB On-The-Go ID PIN AUTONOMOUS START-UP
SUB ADDRESS 0x00 LOCKOUT_ID_PIN
DIRECTION Write and Readback
REG0
2500mA Typical
2750mA Typical
3000mA Typical
2.5mA Max
(USB Suspend)
0
0
0
0
1
1
1
1
1
1
1
1
0
0
1
1
0
1
0
1
1
1
1
1
LOCKOUT_ID_PIN
Autonomous
Start-Up Allowed*
D7
D6
D5
0
D4
D3
D2
D1
D0
SELECT
CLPROG1**
*Default setting CLPROG1 and CLPROG2 shorted. Refer to the Input
1
Autonomous
Start-Up Disabled
*Default setting
1
Current Regulation section for information when this register is
modified by the LTC4155.
**Default setting two CLPROG resistors. Refer to the Input Current
Regulation section for information when this register is modified by
the LTC4155.
Table 9. Input Connector Priority Swap
INPUT CONNECTOR PRIORITY SWAP
REG1
SUB ADDRESS
DIRECTION
0x01
PRIORITY
Write and Readback
PRIORITY
D7
D6
D5
D4
D3
D2
D1
D0
Wall Input
Prioritized*
USB Input
Prioritized
0
1
*Default setting
4155fc
35
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