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RT9758 データシート(PDF) 38 Page - Richtek Technology Corporation

部品番号 RT9758
部品情報  High Voltage Smart Cap Divider and Direct Charge Charger
PDF  61 Pages
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メーカー  RICHTEK [Richtek Technology Corporation]
ホームページ  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT9758 データシート(HTML) 38 Page - Richtek Technology Corporation

Back Button RT9758 Datasheet HTML 34Page - Richtek Technology Corporation RT9758 Datasheet HTML 35Page - Richtek Technology Corporation RT9758 Datasheet HTML 36Page - Richtek Technology Corporation RT9758 Datasheet HTML 37Page - Richtek Technology Corporation RT9758 Datasheet HTML 38Page - Richtek Technology Corporation RT9758 Datasheet HTML 39Page - Richtek Technology Corporation RT9758 Datasheet HTML 40Page - Richtek Technology Corporation RT9758 Datasheet HTML 41Page - Richtek Technology Corporation RT9758 Datasheet HTML 42Page - Richtek Technology Corporation Next Button
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RT9758
Copyright © 2023 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
DS9758-03
May 2023
38
Pre-Charge Level
System Startup Level
7
IBAT (A)
8
6
5
4
3
2
1
CV Level
End of charge current
VBAT (V)
Pre-charge current
Constant Voltage
Constant Voltage by control TA
Fast Charge
Fast Charge
Pre-charge
Time
DIV2 mode
Bypass mode
Cap divider Charger
Active
Active
Active
Swithcing Charger
Non-Active
Non-Active
Non-Active
Non-Active
Non-Active
Non-Active
Non-Active
(Adapter Plug in) RT9758
Figure 4. Charge Profile of 1-cell Battery Application
Pre-Charge Level
System Startup Level
IBAT (A)
5
4
3
2
1
CV Level
End of charge current
VBAT (V)
Pre-charge current
Constant Voltage
Constant Voltage by control TA
Fast Charge
Fast Charge
Pre-charge
Time
DIV2 mode/Bypass mode
Non-Active
RT9758
Swithcing Charger
Non-Active
Active
Non-Active
Active
Figure 5. Charge Profile of 2-cell Battery Application
While the RT9758 is charging, host needs to communicate with smart wall adapter or wireless power device to control
the charging current provided by the RT9758. The communication flow between smart wall adapter, wireless power
device and charge system is shown in Figure 6. In order to prevent abnormal events when charging, the RT9758 is
established with many adjustable protections. All protections behavior in each operation mode that are shown in
Table 3, Table 4, Table 5 and Table 6.



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