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DA9155M 데이터시트(PDF) 23 Page - Dialog Semiconductor

부품명 DA9155M
상세설명  2.5 A Companion Charger for rapid charging
PDF  36 Pages
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DA9155M
2.5 A Companion Charger for rapid charging
Figure 19: Junction temperature monitoring of DA9155M
10.8 Power modes
The power modes of DA9155M are illustrated in Figure 20.
Disabled
Reset
Active functions:
• VIN-VBAT comparator
• Bandgap
• VIN comparator
• VBAT comparator
• TJUNC comparator
• VDDCORE LDO
• Internal oscillator
• OTP controller
• All outputs inactive
OTP read done &&
VIN > VIN_UVLO &&
TJUNC < TJUNC_CRIT
Active
EN == 0 ||
VBAT <= VBAT_UV ||
VBAT >= VBAT_OV ||
VIN <= VIN_DROP ||
VIN <= VIN_UVLO ||
VIN >= VIN_OVLO ||
E_CHG_TIMEOUT ||
TJUNC >= TJUNC_CRIT
EN == 1 &&
VBAT > VBAT_UV &&
VBAT < VBAT_OV &&
VIN > VIN_DROP &&
VIN > VIN_UVLO &&
VIN < VIN_OVLO &&
TJUNC < TJUNC_CRIT &&
IOVDD_OK == 1
TJUNC > TJUNC_POR
Any state
VIN < VIN2BAT
No-Power (5 µA)
Active functions:
• VIN-VBAT comparator
• All outputs inactive
VIN > VIN2BAT
Any state
Active functions:
• VIN-VBAT comparator
• Bandgap
• VIN comparator
• VBAT comparator
• TJUNC comparator
• VDDCORE LDO
• Internal oscillator
• I2C
Active functions:
• VIN-VBAT comparator
• Bandgap
• VIN comparator
• VBAT comparator
• TJUNC comparator
• VDDCORE LDO
• Internal oscillator
• I2C
• Buck
Figure 20: Power modes of DA9155M. The conditions for state transitions follow the C-
language syntax.
10.8.1
No-power
The no-power mode is the initial state of DA9155M. Only the VIN-VBAT comparator is active in this
state. When VIN rises above VBAT, DA9155M enters the reset mode. All IOs are in their inactive state.
The no-power mode is entered whenever VIN drops below VBAT.
10.8.2
Reset
DA9155M enters the reset mode when a power supply is attached and VIN rises above VBAT. In the
reset mode, DA9155M will enable the internal reference, the internal supply, execute the reset
sequence, and read the OTP. Once the OTP is read and all the VIN conditions are met, DA9155M
moves automatically to the disabled mode.
TEMP_CRIT
TEMP_WARN
VBE
TEST[1:0]
VCORE
VCORE
VTWARN
VTCRIT
VTTEST1
VTTEST2
BGAP
DIODE VOLTAGE
TWARN_EN
TCRIT_EN
TEMP_POR
VCORE
TPOR_EN
VTPOR
VTTEST3
Datasheet
v3.05
22-July-2016
CFR0011-120-00 Rev 5
23 of 36
© 2016 Dialog Semiconductor



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