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RT9535

Richtek Technology
Part Number RT9535
Manufacturer Richtek Technology
Description High Efficiency Switching Mode Battery Charger
Published May 27, 2016
Detailed Description RT9535 High Efficiency Switching Mode Battery Charger General Description The RT9535 is a PWM switch mode battery char...
Datasheet PDF File RT9535 PDF File

RT9535
RT9535

Overview
RT9535 High Efficiency Switching Mode Battery Charger General Description The RT9535 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 RT9535 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 RT9535 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 10A 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 R2 C1 C2 R1 ACN HSD RT9535 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 FBR FBR BATT VHH VHH 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 To FBR Pin Copyright © 2015 Richtek Technology Corporation.
All rights reserved.
DS9535-03 June 2015 is a registered trademark of Richtek Technology Corporation.
www.
richtek.
com 1 RT9535 Ordering Inform...


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