RT9535B 반도체 회로 부품 판매점
High Efficiency Switching Mode Battery Charger
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 Richtek Technology |
RT9535B
High Efficiency Switching Mode Battery Charger
General Description
The RT9535B is a PWM switch mode battery charger
controller to fast charge single or multiple Li-Ion, NiMH
and NiCd batteries, using constant current or constant
voltage control. Maximum current can be easily
programmed by external resistor. The constant voltage
output can support up to 22V with 0.5% accuracy.
A third control loop limits the input current drawing from
the adapter during charging. This allows simultaneous
operation of the equipment and fast battery charging
without over loading to the adapter.
The RT9535B can charge batteries from 2.5V to 22V
with dropout voltage as low as 0.4V. A logic output
indicates Li-Ion full charge when current drops to 17%
of the full-scale programmed charge current.
The RT9535B is available in the WQFN-24L 4x4
package.
Features
Fast Charging for Li-Ion, NiMH and NiCd Batteries
Adjustable Battery Voltages from 2.5V to 22V
High Efficiency : Up to 95%
Charging Current Programmed by Resistor
Precision 0.5% Charging Voltage Accuracy
Provide 5% Charging Current Accuracy
Input Current Limit Maximizes Charging Rate
500kHz Switching Frequency
Flag Indicates Li-Ion Charge Completion
Auto Shutdown with Adapter Removal
Only 10A Battery Reverse Current when Idle
Applications
Notebook Computers
Portable Instruments
Chargers for Li-lon, NiMH, NiCd and Lead Acid
Rechargeable Batteries
Simplified Application Circuit
M1 RS4
VIN
CIN
C1 R2
C2
R1
ACN
HSD
RT9535B
ACP
V5V
ACDRV
EN
NTC
R9
RNTC R10
VIN
BOOT
ISET
R3 VC SW
R5 SS
R4
C3
C5 VFB
C4
VFB
PGND
SNSH
SGND
SNSL
D1
VHH
VHH
BATT
STATUS
GND
(Exposed Pad)
C9
To System Power
D2 D3
C7
To VHH Pin
C8 L1
RS1
RS3 RS2
RF2
VBATT
CBATT
To VFB Pin
RF1
Copyright © 2015 Richtek Technology Corporation. All rights reserved.
DS9535B-02 April 2015
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
1
RT9535B
Ordering Information
RT9535B
Package Type
QW : WQFN-24L 4x4 (W-Type)
(Exposed Pad-Option 1)
Lead Plating System
G : Green (Halogen Free and Pb Free)
Note :
Richtek products are :
RoHS compliant and compatible with the current
requirements of IPC/JEDEC J-STD-020.
Suitable for use in SnPb or Pb-free soldering processes.
Pin Configurations
(TOP VIEW)
Marking Information
21=YM
DNN
21= : Product Code
YMDNN : Date Code
24 23 22 21 20 19
ACN 1
18 SW
ACP 2
17 SW
ACDRV 3
EN 4
GND
16 PGND
15 SNSH
SS 5
25 14 SNSL
ISET 6
13 BATT
7 8 9 10 11 12
WQFN-24L 4x4
Copyright © 2015 Richtek Technology Corporation. All rights reserved.
www.richtek.com
2
is a registered trademark of Richtek Technology Corporation.
DS9535B-02 April 2015
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PDF 파일 내의 페이지 : 총 18 페이지
제조업체: Richtek Technology
( richtek )
RT9535B battery
데이터시트 다운로드 :
[ RT9535B.PDF ]
[ RT9535B 다른 제조사 검색 ]
국내 전력반도체 판매점
상호 : 아이지 인터내셔날
전화번호 : 051-319-2877
[ 홈페이지 ]
IGBT, TR 모듈, SCR, 다이오드모듈, 각종 전력 휴즈
( IYXS, Powerex, Toshiba, Fuji, Bussmann, Eaton )
전력반도체 문의 : 010-3582-2743
관련 데이터시트
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High Efficiency Switching Mode Battery Charger - Richtek Technology
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High Efficiency Switching Mode Battery Charger - Richtek Technology
RT9535B
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