BD27400GUL
模拟输入单声道D类扬声器放大器
BD27400GUL
模拟输入单声道D类扬声器放大器
BD27400GUL是为手机、便携设备等移动、音频产品用途而开发的低电压驱动的单声道D类扬声器放大器。扬声器输出无需使用LC滤波器，可通过外接电阻设定增益。与D类动作相比效率高、功耗低，适用于电池驱动应用。待机消耗电流为0.1µA(typ.)，从待机状态恢复的时间短、爆破音小，适用于重复进行待机⇔动作的组件。
主要规格
特性：
Grade
Standard
Circuit Type
Class D
Number of Ch
1(Analog)
Speaker Amp Output Power(Max.)[W]
2.5
Gain [dB]
26(max)
Maximum Output [W,RL=8Ω]
0.85
Maximim Output [W,RL=4Ω]
2.5
Minimum Load [Ω]
4
Input Type
Single
Start Up Time [ms]
3
Stand-by Current [µA]
0.1
Power Supply Voltage (Min.) [V]
2.5
Power Supply Voltage (Max.) [V]
5.5
Operating Temperature (Min.)[°C]
-40
Operating Temperature (Max.)[°C]
85
特点：
・ High output power 2.5W typ.（VDD=5V,RL=4Ω,THD+N=10%,BTL）・ Very small package 9-Pin WL-CSP (1.5*1.5*0.55mmMAX)
・ Gain selectable by external resistor
・ LC Filter less
・ Stand by function
・ Protection circuitry (Short protection, Thermal shutdown, Under voltage lockout)
・ Analogue differential input / PWM digital output
・ Pop noise suppression circuitry
Reference Design / Application Evaluation Kit
-
- Evaluation Board - BD27400GUL-EVK-001
BD546xGUL series, BD27400GUL are a wafer-level CSP packaged low voltage monaural Class-D speaker amplifier for mobile phone, portable type electric devices. BD5460/61GUL are a fixed gain type. BD27400GUL is a variable gain type, BD5465/66/67/68/69GUL are fixed gain with ALC type.
