BD27400GUL-E2 ROHM, Speaker Amplifier 30kHz, 9-Pin WL-CSP Mono

  • RS Stock No. 171-5747
  • Mfr. Part No. BD27400GUL-E2
  • Manufacturer ROHM
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
Product Details

BD27400GUL is a low voltage drive class-D monaural speaker amplifier that was developed for cellular telephones,mobile audio products and the others.
The LC filter of the speaker output is unnecessary and the external part can compose a speaker amplifier at three. Because the efficiency is high and is low consumption power with the class-D operation, it is the optimal for the application of the battery drive. Also Current consumption of 0μA when standby and fast transitions from standby to active with little pop noise make it is suitable for applications that switch repeatedly between suspended and active.

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

Attribute Value
Output Type 1 Channel Mono
Maximum Power 2.5W
Amplifier Class Class D
Mounting Type Surface Mount
Typical Single Supply Voltage 2.5 → 5.5 V
Power Supply Type Single
Number of Channels per Chip 1
Package Type WL-CSP
Pin Count 9
Input Signal Type Differential
Output Signal Type Differential
Typical Gain Bandwidth Product 30kHz
Minimum CMRR 55dB
Maximum Operating Temperature +85 °C
Height 0.45mm
Width 1.5mm
Minimum Operating Temperature -40 °C
Dimensions 1.5 x 1.5 x 0.45mm
Length 1.5mm
Temporarily out of stock - back order for despatch 13/05/2020, delivery within 3 working days from despatch date
Price Each (On a Reel of 3000)
SGD 0.544
(exc. GST)
SGD 0.582
(inc. GST)
Per unit
Per Reel*
3000 +
*price indicative