LV49821VH: Audio Power Amplifier, Class AB, 2-Channel, 1.4 W, BTL
The LV49821VH incorporates a 2-channel power circuit amplifier capable of low-voltage operation (2.7V and up). It has a function for switching the headphone driver and also has a standby function to reduce the current drain. It is a power amplifier IC optimal for driving the speakers used in portable equipment and low power output equipment.
Features- 2-cannels BTL power amplifier built-in :Standard output power = 1.4W (VCC = 5V, RL = 8Ω, THD = 10%)Output coupling capacitor is unnecessary because of differential output type.
- Standby function built-in :Standard standby current = 0.01µA (VCC = 5V)
- Second amplifier stop control function built-in :Headphone driver switch (for BTL/SE switch)Audio mute (Only BTL power amplifier path)
- Supports beep signal input
- Thermal protection circuit built-in
- Operation at low voltage possible :VCC = 2.7V to 5.5V
- Gain setting possible :BTL voltage gain = 0 to 26dB
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End Products- Portable DVD-player
- Note PC
- Portable TV
- LCD monitor
- Active speaker
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Data Sheets (1)
Package Drawings (1)
Order Information
| Product | Status | Compliance | Package | MSL* | Container | Budgetary Price/Unit |
|---|
| LV49821VH-MPB-H | Active | Pb-free
Halide free | HSSOP-13 | 944AD | 3 | Fan-Fold | 90 | $1.0533 |
| LV49821VH-TLM-H | Active | Pb-free
Halide free | HSSOP-13 | 944AD | 3 | Tape and Reel | 2000 | $1.088 |
Specifications
| Product | Class | Output Power Typ (W) | VCC Max (V) | Output Type | ton Typ (ms) | THD + N Typ (%) | IQ Typ (mA) | ISD Typ (nA) |
|---|
| LV49821VH-MPB-H | AB | 1.4 | 5.5 | BTL | | 0.3 | 7.1 | 10 |
| LV49821VH-TLM-H | AB | 1.4 | 5.5 | BTL | | 0.3 | 7.1 | 10 |
