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RT5021 数据表(PDF) 59 Page - Richtek Technology Corporation

部件名 RT5021
功能描述  Channels DC/DC PMU with Li-ion Battery Charger
PDF  67 Pages
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制造商  RICHTEK [Richtek Technology Corporation]
网页  http://www.richtek.com
标志 RICHTEK - Richtek Technology Corporation

RT5021 数据表(HTML) 59 Page - Richtek Technology Corporation

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RT5021
59
DS5021-01 April 2013
www.richtek.com
Copyright
2013 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
©
CHG
CHG2
CHGSTEN = 0
CHG2STEN = 0
Charging Status
CHGSTEN = 1
A5. bit7 = 1 A5. bit7 = 0
CHG2STEN = 1
A5. bit3 = 1 A5. bit3 = 0
No
Charging/Charging Finish
High impedance
(No flashing)
High impedance
(No flashing)
Pre-Charge/Fast Charge
0.5Hz (2s)
Low
Abnormal
(Fault timer timeout,
in thermal regulation,
battery too cold or too hot)
4Hz (0.25s)
High
impedance
Low
4Hz(0.25s)
High
impedance
Low
CHG Signal Status
VDDI < 1.3V
VIN > 4V
A0.RST_C bit
(BAT < 3.1V)
==> Reset Charger Setting
true (VDDI < 1.3V)
x
x
x
Reset
false (VDDI > 1.3V)
False (VIN < 4V)
x
x
Reset
false (VDDI > 1.3V)
True (VIN > 4V)
1
TRUE
Reset
false (VDDI > 1.3V)
True (VIN > 4V)
1
FALSE
Not reset
false (VDDI > 1.3V)
True (VIN > 4V)
0
TRUE
Not reset
false (VDDI > 1.3V)
True (VIN > 4V)
0
FALSE
Not reset
E. (EN pin = low) or (VDDI < 1.3V)
F. Charger type detection A11 (registers 0xB) reset when (VIN < 4V) or (VDDI < 1.3V)
G. Always reset.
H. A0.bit1 will be reset when (EN pin = low) or (VDDI < 2.4V) or (BAT < 1.3V) or (PMU protection occur) or (Temperature
< 125
°C).
I. A0.bit1 will be reset when (EN pin = low) or (VDDI < 2.4V) or (BAT < 1.3V) or (In addition to CH7 OVP, PMU protection
occur) or (Temperature < 125
°C).
J. Reference page-54 A10 explanation.
K. A11.bit7 to bit5 will be rewritten after charging type detects finish.
L. A11.bit0 keeps high during charging type detecting.



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