开关电源芯片

SDH8634是用于开关电源的内置高压MOSFET及高压启动恒流源、外置采样电阻的电流模式PWM+PFM控制器。\n\n SDH8634内置高压启动恒流源，低待机功耗。有多种控制模式：在重载时，工作在PWM模式；在轻载时，工作在PFM模式，以提高转换效率；在空载时，进入打嗝模式，以降低待机功耗。\n\n SDH8634具有抖频功能，以降低EMI。内置峰值电流补偿电路，可以使不同交流电压输入时极限输出功率一致。内置软启动功能可以在上电过程中减小变压器的应力，防止变压器饱和。\n\n SDH8634内部集成全面的异常状态保护功能，包括前沿消隐（LEB），逐周期峰值限流 • 高压启动\n• 低待机功耗\n• 多种控制模式\n• 抖频\n• 峰值电流补偿\n• 软启动\n• 前沿消隐（LEB）\n• 逐周期峰值限流\n• VCC过压保护（OVP）\n• 输出过载保护（OLP）\n• 过温保护（OTP）;

Silan

士兰微

470關A, 6MHz, Rail-to-Rail I/O CMOS Operational Amplifier

PRODUCT DESCRIPTION The SGM8631(single), SGM8632(dual), SGM8633(single with shutdown) and SGM8634 (quad) are low noise, low voltage, and low power operational amplifiers, that can be designed into a wide range of applications. The SGM8631/2/3/4 have a high gain-bandwidth product of 6MHz, a slew

文件：659.68 Kbytes 页数：18 Pages

SGMICRO

圣邦股份

470關A, 6MHz, Rail-to-Rail I/O CMOS Operational Amplifier

PRODUCT DESCRIPTION The SGM8631(single), SGM8632(dual), SGM8633(single with shutdown) and SGM8634 (quad) are low noise, low voltage, and low power operational amplifiers, that can be designed into a wide range of applications. The SGM8631/2/3/4 have a high gain-bandwidth product of 6MHz, a slew

文件：659.68 Kbytes 页数：18 Pages

SGMICRO

圣邦股份

470關A, 6MHz, Rail-to-Rail I/O CMOS Operational Amplifier

PRODUCT DESCRIPTION The SGM8631(single), SGM8632(dual), SGM8633(single with shutdown) and SGM8634 (quad) are low noise, low voltage, and low power operational amplifiers, that can be designed into a wide range of applications. The SGM8631/2/3/4 have a high gain-bandwidth product of 6MHz, a slew

文件：659.68 Kbytes 页数：18 Pages

SGMICRO

圣邦股份