Multilizer PDF Translator Free version - translation is limited to ~ 3 pages per translation. Shenzhen xptek technology lithium-ion battery, Mono 8W (

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Multilizer PDF Translator Free version - translation is limited to ~ 3 pages per translation. Shenzhen xptek technology lithium-ion battery, Mono 8W (THD=10%,4 ω load) x adjustable anti-broken sound audi Function description Picture: is a integrated efficiency boost Mono AB/D classes can be selected (Broken sound-proof when d) audio power amplifier. Great to bring 4 ω load speakers provide ongoing 8W of power. Its low noise pulse width Modulated structure, reducing the number of exter Consumption and system cost, simplifies the desig 1MHz fixed-frequency current-mode boost converter. -production ESOP packages, particularly suitable for large volume and small weight portable In the Commission. with automatic overheating shutdown protection mechanism; AB Such mode the gain-bandwidth product of up to 2.5MHz and are unity-gain stable The feedback resistor built-in, by adjusting p The voltage gain and the best sound quality, easy to apply. Is your USB Outside sound cannons, radios, MP3 players, Rod audio and microphone The perfect solution. Basic application of chip Microphone, sound card, etc Function key features Low-voltage stereo USB system, 2.1/2.0 Multimedia Audio Built-in booster circuit efficiency of up to 92% Radio GPS No interference to FM, high efficiency and excellent sound quality MP3/MP4/MP5/CD/ Unique adjustable break functions Digital camera AB/D class switching Tablet computer, Palm games 8W output power (10% THD, 4 w load, 3.7V) Wide operating voltage ~ range: 2.5V 8.5V Power pop on the excellent sound suppression Schematic diagram Externally adjustable gain, integrating feedb No need to drive an output coupling capacitor Unity gain stable Overheat protection ESOP packages Address: Shenzhen high-tech industrial R3-A Big park, 5 things Building Nanshan Website: District www.xptek.cn ; Micro signal: szxpt168 PIN For sale: sales@xptek.cn Technical support: support@xptek.cn Design services: design@xptek.cn Multilizer PDF Translator Free version - translation is limited to ~ 3 pages per translation.

Multilizer PDF Translator Free version - translation is limited to ~ 3 pages per translation. Shenzhen xptek technology lithium-ion battery, Mono 8W (THD=10%,4 ω load) x adjustable anti-broken sound audi Chip ordering information Chip model Package types Packaging types Minimum number PCS) of packages Notes ( ES ESOP16 Tape disc 2500/ Dish With heat sink ES ESOP16 Tube 50/Tube With heat sink Pin map PIN diagram Address: Shenzhen high-tech industrial R3-A Big park, 5 things Building Nanshan Website: District www.xptek.cn ; Micro signal: szxpt168 PIN For sale: sales@xptek.cn Technical support: support@xptek.cn Design services: design@xptek.cn Multilizer PDF Translator Free version - translation is limited to ~ 3 pages per translation.

Multilizer PDF Translator Free version - translation is limited to ~ 3 pages per translation. Shenzhen xptek technology lithium-ion battery, Mono 8W (THD=10%,4 ω load) x adjustable anti-broken sound audi PIN description PIN name PIN number ESOP16 I/O Description 1 VDD Chip supply 2 FB I/O Voltage regulator feedback FB Connected input to an external Reset output (reference 0.6V) 3 AVDD After boosting the analog supply voltage 4 CAP I Broken sound-proof control Turn off broken sound low external capacitors regulate aga 5 INN I Chip signal input 6 MODE I Chip mode control Low level select AB Class, high level D Class options 7 OUT+ O Chip output end 8 PVDD After boosting power, Boost Output 9 10 PGND1 OUT- O Power amplifier module Chip negative output terminal 11 VREF O Chip bias voltage output 12 SD I Power amplifier modules enable (default enabled) (High level shutdown power amplifier, low level or vacant 13 14 15 AGND PGND2 SW Chip simulation Boost Module power Boost Internal power switch drain 16 ENDC I Boost module can control, open high Boost Address: Shenzhen high-tech industrial R3-A Big park, 5 things Building Nanshan Website: District www.xptek.cn ; Micro signal: szxpt168 PIN For sale: sales@xptek.cn Technical support: support@xptek.cn Design services: design@xptek.cn Multilizer PDF Translator Free version - translation is limited to ~ 3 pages per translation.

典型应用电路 深圳市矽普特科技有限公司单节锂电池, 单声道 8W(THD=10%,4Ω 负载 )X 类, 可调式防破音功能音频功放 典型应用图 PCB 布线注意事项 : 1:SW 脚到电感需要走大电流, 电感必须紧靠 SW 脚, 减小高频噪声 同时 SW 脚到电感的走线要求宽且短 ( 走线宽度不小于 30mil) 电感底下及周边禁止走线与覆铜 特别注意模拟地线和音频输入线等容易受干扰的其他线要远离电感 2: 肖特基二极管 D1 必须靠近电感和 SW 脚放置, 在肖特基二极管负端的输出电容 Cout1 必须紧靠二极管 D1 的负端放置 升压电路的输出给 PVDD VDD AVDD 以及 FB 反馈电阻供电时, 必须先经过 COUT 电容, 禁止使用肖特基二极

深圳市矽普特科技有限公司 单节锂电池, 单声道 8W(THD=10%,4Ω 负载 )X 类, 可调式防破音功能音频功放管负端作为升压输出 3: 音源的输入所对应的模拟地和芯片本身的模拟地必须单独走线, 且走线远离干扰源, 输入电阻尽量靠近输 入端, 避开并行的大扰动线 ( 如 PGND) 器件 L1 D1 ZD1 参数 3.3uH R=17mohm, 8040 5A,DO214 VBR:6.8V ± 30%,6.5A,DC 尺寸 :1.0mm*0.6mm BOM 表 供应商型号 Sunlord: SWPA8040S3R3NT Fairchild:SS54 BYD:BDE2S5.0C COUT2 Cs2 220uF,10V, ±20%,5*11 Nichicon: Cs4 470uF,10V,±20%,8*16 Nichicon: COUT1 22uF,20%,10V,X5R,0805 Cavdd1 Cs1 10uF,20%,10V.X5R,0805 Cs3 Cvdd2 Rfb1 Rfb2 Rin 10PX220MCA5 11 10PX470MCA8 16 TDK:C0603X5R1A226M TDK:C0603X5R1A106M 描述 表贴电感 肖特基二极管 瞬态抑制二极 管 ( TVS) 电解电容 电解电容 陶瓷电容 陶瓷电容 1%,10V,XR5,0603 ROHM:MCR006YRTF 贴片电阻 应用说明 输出电压设定 如典型应用图中所示, 输出电压由连接到反馈脚的分压电阻 Rfb1,Rfb2 设定, 反馈脚电压 VFB 为 0.6V, 则输出电压可以设定如下 : Vo = ( Rfb1 + )1* 0 6. Rfb2 较大的 Rfb1,Rfb2 可降低静态功耗, 选择合适的 Rfb1,Rfb2 以确保 Vo 不超过 8.5V 功率电感的选择 在确定的 Vin,Vo 情况下, 电感量决定了电感电流的上升斜率及下降斜率 电感电流纹波率 r: DiL Ro * 1( - D) r = = i L * f L _ avg * D 2

深圳市矽普特科技有限公司单节锂电池, 单声道 8W(THD=10%,4Ω 负载 )X 类, 可调式防破音功能音频功放 其中 Ro 为输出负载等效阻抗, f 为 的开关频率 函数 r=f( D) 在 1/3 处有最大值 在其他条件不变的情况下, 电流纹波率 r与电感量 L 成反比, 要保证系统工作在 CCM, 必须满足 r 2, 由此得到电感的最小值 L min = Ro * 1( - D) 2 * f 2 * D 而过小的电感电流纹波率, 会导致大的电感量及电感体积, 必须确定一个最小纹波率, 由此得到电感的最大值 Lmax 另一方面, 大的纹波率导致大的电容电流有效值影响效率, 需要在两者间折衷 经验表明 r=0.3~0.5 是个 合适的值 在使用小 ESR 电容时, 可以增大电流纹波率以减小电感体积 为避免电感饱和, 电感的额定电流必须大于芯片的过流限制点, 电流峰值限制典型值为 5A 推荐使用 1uH ~ 4.7uH, 饱和电流超过 5A 的功率电感 电源输入输出电容的选择 升压调节器功率开关管的不断开关, 会在系统输入端产生纹波, 纹波的大小取决于实际应用中电流大小, 系 统的输入阻抗, 及 PCB 布线 必须使用一个输入电容来减小这个纹波, 典型条件下 22uF 或则 47uF 已足够, 若输入阻抗较大 ( 例如输入走线很长 ) 时, 应加大输入电容值 在 VDD 接输入端时, 应加大电容, 同时在靠近芯片 VDD 脚处加一小电容, 以避免 VDD 欠压锁定的误触发 输出电容的选择主要取决于所需要的输出电压纹波, 为减小输出电压纹波, 必须使用低 ESR 的电容, 可以 采用多个电容并联的方式 同时, 在音频领域应用时, 由于负载在某段时间内将超出系统的最大输出功率, 所 以必须采用较大的电容避免输出电压大的下掉 推荐使用 220uF 电解电容与 10uF 钽电容并联 输出二极管的选择 输出二极管的选择取决于输出电压和输出电流 二极管的平均电流等于系统的输出电流, 使用的二极管的 额定电流必须大于输出电流, 同时二极管上的损耗正比于二极管正向导通压降, 应选取正向压降小的二极管 在二极管关断阶段, 二极管的反向电压为输出电压, 应选取反向耐压大于输出电压的二极管 视不同应用, 推荐使用 SS32 或更高耐压更大电流的肖特基二极管 开关节点振铃抑制 CSW RSW 以及 ZD1 用于抑制升压电路开关节点 SW 脚上的振铃, 以降低损坏开关的风险和减少 EMI 推荐使用 1.2 欧姆电阻和 470pF 或 1nF 贴片电容串联

封装尺寸 深圳市矽普特科技有限公司单节锂电池, 单声道 8W(THD=10%,4Ω 负载 )X 类, 可调式防破音功能音频功放 ESOP16 ESOP-16 封装尺寸图 当本手册内容改动及版本更新将不再另行通知, 深圳市矽普特科技有限公司保留所有权利