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LTC4099 Datasheet(PDF) 38 Page - Linear Technology

Part # LTC4099
Description  Dual-Input Power Manager
PDF  52 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC4099 Datasheet(HTML) 38 Page - Linear Technology

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LTC4155
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Table 23. Input Undervoltage Current Limit (Brownout) Status
INPUT UNDERVOLTAGE CURRENT LIMIT
(BROWNOUT) STATUS
REG4
SUB ADDRESS
0x04
INPUT_UVCL_ACTIVE
DIRECTION
Read
INPUT UNDERVOLTAGE
CURRENT LIMIT STATUS
D7
D6
D5
D4
D3
D2
D1
D0
Input UVCL Inactive
0
Input UVCL Active
1
Table 24. Overvoltage Protection Fault
OVERVOLTAGE PROTECTION FAULT
REG4
SUB ADDRESS
0x04
OVP_ACTIVE
DIRECTION
Read
INPUT OVERVOLTAGE
D7
D6
D5
D4
D3
D2
D1
D0
No Fault
0
Input (USB or WALL)
Overvoltage
1
Table 25. USB On-The-Go Step-Up Regulator Fault Shutdown
USB On-The-Go STEP-UP REGULATOR FAULT SHUTDOWN
REG4
SUB ADDRESS
0x04
OTG_FAULT
DIRECTION
Read
STEP-UP
REGULATOR STATUS
D7
D6
D5
D4
D3
D2
D1
D0
No Fault
0
Regulator Over
Current Shutdown
1
Table 26. Battery Unresponsive to Charging
BATTERY UNRESPONSIVE TO CHARGING
REG4
SUB ADDRESS
0x04
BAD_CELL
DIRECTION
Read
BATTERY STATUS
D7
D6
D5
D4
D3
D2
D1
D0
No Fault
0
Low Cell Voltage
Timeout
1
Table 27. NTC Analog-to-Digital Converter Result
NTC ANALOG-TO-DIGITAL CONVERTER RESULT
REG5
SUB ADDRESS
0x05
NTCVAL[6:0]
DIRECTION
Read
NTC CONVERSION
RESULT
D7
D6
D5
D4
D3
D2
D1
D0
NTCVAL[6:0]*
ddddddd
See NTC Thermistor Monitor in Operation section to convert ADC result
to temperature.
Table 28. NTC Temperature Out of Range for Battery Charging
NTC TEMPERATURE OUT OF RANGE FOR
BATTERY CHARGING
REG5
SUB ADDRESS
0x05
NTC_WARNING
DIRECTION
Read
NTC TEMP RANGE
D7
D6
D5
D4
D3
D2
D1
D0
Temperature Normal
0
Too Warm or Too
Cold to Charge
1
Table 29. Battery Charger Interrupt Mask
BATTERY CHARGER INTERRUPT MASK
REG6
SUB ADDRESS
0x06
ENABLE_CHARGER_INT
DIRECTION
Write and Readback
INTERRUPT
ENABLE STATUS
D7
D6
D5
D4
D3
D2
D1
D0
Charger Interrupts
Disabled*
0
Charger Interrupts
Enabled
1
*Default.
Interrupt triggered by any change in CHARGER_STATUS[2:0].Any data
written to sub address 0x06 has side effect of clearing any pending
interrupt request.
OPERATION



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