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FAN5400 Просмотр технического описания (PDF) - Fairchild Semiconductor

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FAN5400 USB-Compliant Single-Cell Li-Ion Switching Charger with USB-OTG Boost Regulator Fairchild
Fairchild Semiconductor Fairchild
FAN5400 Datasheet PDF : 37 Pages
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Table 19. MONITOR Register Bit Definitions
BIT#
NAME
STATE
0
1
Active When
MONITOR
Address 10H
7
ITERM_CMP
VCSIN – VBAT < VITERM
VCSIN – VBAT < 1mV
6 VBAT_CMP
VBAT < VSHORT
VBAT < VLOWV
5 LINCHG
VBAT < UVLOBST
Linear Charging Not Enabled
4 T_120
3 ICHG
TJ < 120°
Charging Current Controlled by
ICHARGE Control Loop
2 IBUS
IBUS Limiting Charging Current
1 VBUS_VALID VBUS Not Valid
0 CV
Constant Current Charging
VCSIN – VBAT > VITERM
VCSIN – VBAT > 1mV
VBAT > VSHORT
VBAT > VLOWV
VBAT > UVLOBST
Linear Charging Enabled
TJ > 120°
Charging Current Not Controlled by
ICHARGE Control Loop
Charge Current Not Limited by IBUS
VBUS is Valid
Constant Voltage Charging
Charging with TE=1
Charging with TE=0
Charging
High-Impedance Mode
Boosting
Charging
Charging
Charging
VBUS > VBAT
Charging
© 2009 Fairchild Semiconductor Corporation
FAN5400 Family • Rev. 1.0.7
29
www.fairchildsemi.com
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