Analog Input Monaural Class-D Speaker Amplifier - BD5465GUL

These monaural Class D speaker amps have ALC function, and are compatible with differential analog input, making them optimized for a wide variety of applications, from portable devices such as mobile phones and laptop computers to home appliances and healthcare equipment with built-in speech synthesis. In addition, an efficiency of 90% contributes to lower heat generation and greater energy conservation.

* This product is a STANDARD grade product and not recommend for on-vehicle devices.
Part Number
Unit Quantity
Minimum Package Quantity
Packing Type
BD5465GUL-E2 Active VCSP50L1 3000 3000 Taping Yes
Vcc(Min.)[V] 2.5
Vcc(Max.)[V] 5.5
Iq[mA] 3.3
Ext. Gain No
Maximum Output Gain[dB] 12.0
Additional Feature ALC
Speaker Amp Outputs 1.0
Speaker Amp THD+N[%] 0.1
Speaker Amp SNR[dB] -98.0
Speaker Amp PSRR[dB] 53.0
Speaker Amp Input Type Differential Single
Speaker Amp Type Class D
Speaker Amp Output Power(Max.)[W] 0.6
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 85
  • ・Contains Digital ALC (Automatic Level Control) Function
    ・External Parts: 3 points
    ・Ultra slim type package: 9pin WL-CSP (1.8×1.8×0.55mmMax.)
    ・BD5460 / 61GUL (No ALC Function, Gain Fixed Goods) Pin Compatible Specs
        BD5466 / 67 / 68GUL (ALC Function, Gain Fixed Goods) Pin Compatible Specs
    ・Maximum Gain: 12 dB (Typ.) [during ALC operation, +12~-3dB@1dB Step]
    ・ALC limit level control type : Fixed type doesn’t follow up power supply
    ・Limit output power: 0.6W (Typ.) [VDD=3.4~5.5V, RL=8Ω]
    ・ALC release (recovery) time: 560ms/1dB (Typ.)
    ・Audio Analog Input (corresponds to single-end input / differential input)
    ・Output LC filter free
    ・Pop noise suppression circuit
    ・Shutdown Function (use as mute at the same time) [low shutdown current = 0.01μA (Typ.)]
    ・Contains protection circuit: output short, thermal shutdown, under voltage lockout (UVLO)
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New Products:
Technical Data
Thermal Resistance

The definition and how to use thermal resistance and thermal characterization parameter of packages for ROHM’s integrated circuit are described in this application note.