參數(shù)資料
型號: MB3893APFV
廠商: FUJITSU LTD
元件分類: 電源管理
英文描述: Bridge Rectifier; Current Rating:260A; Leaded Process Compatible:Yes; Peak Reflow Compatible (260 C):Yes
中文描述: 2-CHANNEL POWER SUPPLY SUPPORT CKT, PQFP48
封裝: PLASTIC, LQFP-48
文件頁數(shù): 37/44頁
文件大小: 496K
代理商: MB3893APFV
MB3893A
37
I
CHARGE CONTROL UNIT OPERATION FLOWCHART
OSC
45 ms
15 s
16 min
240 min
230 ms
117 ms
0.46 s
16 min
over
<
16 min
T
BATT
<
+
3
°
C or
+
48
°
C
<
T
BATT
T
BATT
<
+
3
°
C or
+
41
°
C
<
T
BATT
VIN
<
3.05 V
or 6.2 V
<
VIN
VBAT
>
4.325 V
or Thermal protection
VBAT
<
3.935 V
3.935 V
<
VBAT
<
4.215 V
(4.115 V)
VBAT
=
4.215 V (4.115 V)
I
=
53 mA
T
BATT
: Battery temperature
*1 : The 2.1 mA current is supplied from the IC internally
*2 : The 80 mA current is supplied from the external P-ch MOSFET (77.9 mA) plus the IC internal
current of 2.1 mA.
Start
Reset
Check battery
Check VIN
3.05 V to 6.20 V
Check temperature
T
BATT
=
+
3
°
C to
+
41
°
C
Judge
charging
Normal
timer
VBAT
<
2.115 V
Charge at 2.1mA *1
2.115 V
<
VBAT
<
3.115 V
Charge at 80mA *2
(77.9 mA
+
2.1 mA)
Stop charging
Stop charging
Abnormal
condition
Wait
Start
charging
standby
timer
(16 min)
Normal end
Recovery condition: VIN re-input or remove/replace battery
Resume
charging,
Restart timer
Stop charging,
Stop timer
3.115 V
<
VBAT
<
3.935 V
Charge at 590mA
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