RT9501BPF Richtek Technology Corporation, RT9501BPF Datasheet
RT9501BPF
Specifications of RT9501BPF
Available stocks
Related parts for RT9501BPF
RT9501BPF Summary of contents
Page 1
Advanced Lithium-Ion Linear Battery Charger General Description The RT9501 is a single Lithium-Ion or Lithium-Polymer cell linear battery charger which is designed for compact and cost-sensitive handheld devices. It combines charge status indication, charge termination, battery temperature monitoring, and high ...
Page 2
RT9501A/B Typical Application Circuit GND V IN GND www.richtek.com FB/ BATT 1 VDD TS 4 GND STAT C1 0.1uF Figure 1. Application circuit using P-Channel MOSFET R ...
Page 3
Functional Pin Description Pin Name Pin Function VDD Supply Voltage Input. TS Temperature Sense Input. Input from battery temperature monitoring circuit. Charge Status Output. 3-state status indication of charge, charge complete and temperature fault or STAT disable or sleep mode. ...
Page 4
RT9501A/B Absolute Maximum Ratings Supply Voltage --------------------------------------------------------------------------------------------------------- −0. Storage Temperature Range ---------------------------------------------------------------------------------------- −65°C to 150°C Power Dissipation 25° MSOP-8 ----------------------------------------------------------------------------------------------------------------- 300mW Package Thermal Resistance MSOP-8, θ ------------------------------------------------------------------------------------------------------------ 80°C/W JA Operation Junction Temperature ...
Page 5
Parameter Output (Low) Voltage @ STAT pin V Output (High) Voltage @ STAT pin V Output Low Voltage @ CC pin Sink current @ CC pin Note 1. Stresses listed as the above “Absolute Maximum Ratings” may cause permanent damage ...
Page 6
RT9501A/B Application Information Charge Profile Regulation voltage Recharge voltage Regulation current Precharge threshold voltage Precharge current = Charge termination current Detection First, the FB/CE pin must connect to VDD or a voltage divider to enable the charge function. And then ...
Page 7
Constant Voltage Regulation and Charge Termination Mode When the battery voltage reaches the regulation voltage V , the constant voltage feedback control starts, and O(REG) then the charge current begins to decrease as the typical charge profile shown. As the ...
Page 8
RT9501A BATT VDD TS STAT GND Figure 8. For FB pin Function × 2.1 (1+ O(REG) Charge status indication The RT9501 indicates the status of the charger on the ...
Page 9
... Tel: (8863)5526789 Fax: (8863)5526611 Information that is provided by Richtek Technology Corporation is believed to be accurate and reliable. Richtek reserves the right to make any change in circuit design, specification or other related things if necessary without notice at any time. No third party intellectual property infringement of the applications should be guaranteed by users when integrating Richtek products into any application ...