單節(jié)鋰離子電池雙輸入線性充電器

RT9502 是適合便攜式應(yīng)用的全集成、低成本的單節(jié)鋰離子電池充電 IC ，它既可用交流適配器供電，也可用USB接口進(jìn)行供電，而且會(huì)自動(dòng)的對(duì)這兩種輸入進(jìn)行檢測(cè)并從中選擇合適的輸入作為充電電源。當(dāng)兩個(gè)輸入都不存在時(shí)，RT9502即自動(dòng)進(jìn)入睡眠模式。RT9502采用優(yōu)化的方式完成充電任務(wù)，可自動(dòng)選擇預(yù)充模式、快充模式和恒壓模式進(jìn)行充電操作。當(dāng)充電電流降低到預(yù)設(shè)的充電電流時(shí)，充電過程自動(dòng)終止。當(dāng)電源來自 USB 接口時(shí)，充電電流可在 100mA 和 500mA 之間進(jìn)行選擇。當(dāng)使用交流適配器進(jìn)行充電時(shí)，充電電流可用外部電阻進(jìn)行調(diào)節(jié)，最大值可達(dá) 1A 。它內(nèi)部的熱回饋電路可對(duì)內(nèi)核溫度進(jìn)行調(diào)節(jié)，使得它在 ? 自動(dòng)輸入選擇\n? 交流適配器輸入端最高耐壓為 18V\n? 恒定可選 100mA 和 500mA USB 充電電流\n? 內(nèi)部集成 P-MOSFET\n? 交流適配器電源正常指示\n? 充電狀態(tài)指示\n? 欠壓保護(hù)\n? 過壓保護(hù)\n? 自動(dòng)復(fù)充\n? 電池溫度監(jiān)測(cè)\n? 小型10引腳 WDFN 封裝\n? 熱回饋優(yōu)化充電速率\n? 符合 RoHS 規(guī)范，不含鹵素;

Richtek

立锜科技

Linear Single Cell Li-Ion Battery Charger IC with Dual Input Supply

General Description The RT9502 is a fully integrated low cost single-cell LiIon battery charger IC ideal for portable applications. The RT9502 is capable of being powered up from AC adapter and USB (Universal Serial Bus) port inputs. The RT9502 can automatically detect and select the AC adapter

文件：318.13 Kbytes 頁數(shù)：13 Pages

RICHTEK

立锜科技

Package：10-WFDFN 裸露焊盤；包裝：卷帶（TR） 類別：集成電路（IC） 電池充電器 描述：IC BATT CHG LI-ION 1CELL 10WDFN

Richtek USA Inc.

Dual-band, CDMA/AMPS downconverter IC

DESCRIPTION The SA9502 integrates all the front end receive mixers necessary for use in dual-band, triple-mode CDMA/AMPS cellular phone handsets. There are three individual mixer blocks, each optimised for high linearity with low power consumption for operation in one of the following modes: High

文件：256.8 Kbytes 頁數(shù)：26 Pages

PHI

PHI

Dual-band, CDMA/AMPS downconverter IC

DESCRIPTION The SA9502 integrates all the front end receive mixers necessary for use in dual-band, triple-mode CDMA/AMPS cellular phone handsets. There are three individual mixer blocks, each optimised for high linearity with low power consumption for operation in one of the following modes: High

文件：256.8 Kbytes 頁數(shù)：26 Pages

PHI

PHI

Dual, 12-Bit, Voltage Output D/A Converter

DESCRIPTION The SP9502 is a low power, dual version of the popular SP9345, Quad 12-Bit Digital-to-Analog Converter. It features ±4.5V output swings when using±5 volt supplies. The converter is doublebuffered for easy microprocessor interface. Each 12-bit DAC is independently addressable and both

文件：230.62 Kbytes 頁數(shù)：11 Pages

SIPEX