LM4871MX
LM4871 Boomer® Audio Power Amplifier Series 3W Audio Power Amplifier with Shutdown Mode
Manufacturer
Texas Instruments
Overview
Part: LM4871 Boomer® Audio Power Amplifier Series from Texas Instruments
Type: Mono Bridged Audio Power Amplifier
Key Specs:
- PO at 10% THD+N, 1kHz (LM4871LD): 3W (typ) into 3Ω
- PO at 10% THD+N, 1kHz (LM4871LD): 2.5W (typ) into 4Ω
- PO at 10% THD+N, 1kHz (All other LM4871 Packages): 1.5W (typ) into 8Ω
- Shutdown Current: 0.6μA (typ)
- Supply Voltage Range: 2.0V to 5.5V
- THD at 1kHz at 1W Continuous Average Output Power into 8Ω: 0.5% (max)
Features:
- No Output Coupling Capacitors Required
- No Bootstrap Capacitors Required
- No Snubber Circuits Required
- Unity-gain Stable
- WSON, VSSOP, SOIC, or PDIP Packaging
- External Gain Configuration Capability
- Pin Compatible with the LM4861
- Micropower shutdown mode
- Thermal shutdown protection
Applications:
- Portable Computers
- Desktop Computers
- Low Voltage Audio Systems
Package:
- WSON: dimensions not specified (Package Number NGN0008A)
- VSSOP: dimensions not specified (Package Number DGK0008A)
- SOIC: dimensions not specified (Package Number D0008A)
- PDIP: dimensions not specified (Package Number D0008E)
Features
- No Output Coupling Capacitors, Bootstrap Capacitors, or Snubber Circuits Required
- Unity-gain Stable
- WSON, VSSOP, SOIC, or PDIP Packaging
- External Gain Configuration Capability
- Pin Compatible with the LM4861
Applications
- Portable Computers
- Desktop Computers
- Low Voltage Audio Systems
Electrical Characteristics
The following specifications apply for VDD = 5V and RL = 8 Ω unless otherwise specified. Limits apply for TA = 25°C.
| LM4871 | ||||
|---|---|---|---|---|
| Symbol | Parameter | Conditions | Min (3) | Typical (4) |
| VDD | Supply Voltage | 2.0 | ||
| I DD | Quiescent Power Supply Current | VIN = 0V , Io = 0A | 6.5 | |
| I SD | Shutdown Current | VPIN1 = VDD | 0.6 | |
| Vos | Output Offset Voltage | VIN = 0V | 5.0 |
Product Folder Links: LM4871
Absolute Maximum Ratings
| Supply Voltage | 6.0V | ||
|---|---|---|---|
| Supply Temperature | -65°C to +150°C | ||
| Input Voltage | -0.3V to V DD to +0.3V | ||
| Power Dissipation (3) | Internally Limited | ||
| ESD Susceptibility (4) | 5000V | ||
| ESD Susceptibility (5) | · | ||
| Junction Temperature | 150°C | ||
| Soldering Information | Small Outline Package | Vapor Phase (60 sec.) | 215°C |
| Infrared (15 sec.) | 220°C | ||
| θ JC (typ)—D0008A | 35°C/W | ||
| θ JA (typ)—D0008A | 140°C/W | ||
| θ JC (typ)—D0008E | 37°C/W | ||
| θ JA (typ)—D0008E | 107°C/W | ||
| θ JC (typ)—DGK0008A | 56°C/W | ||
| θ JA (typ)—DGK0008A | 210°C/W | ||
| θ JC (typ)—NGN0008A | |||
| θ JA (typ)—NGN0008A | 56°C/W (6) |
Operating Ratings
| Temperature Range T MIN ≤ T A ≤ T MAX | -40°C ≤ T A ≤ 85°C |
|---|---|
| Supply Voltage | 2.0V ≤ V DD ≤ 5.5V |
Related Variants
The following components are covered by the same datasheet.
| Part Number | Manufacturer | Package |
|---|---|---|
| LM4871 | Texas Instruments | — |
| LM4871C | Texas Instruments | — |
| LM4871LD | Texas Instruments | — |
| LM4871LD/NOPB | Texas Instruments | — |
| LM4871LD/NOPB.A | Texas Instruments | — |
| LM4871M | Texas Instruments | — |
| LM4871M/NOPB | Texas Instruments | — |
| LM4871M/NOPB.A | Texas Instruments | — |
| LM4871MM | Texas Instruments | — |
| LM4871MM/NOPB | Texas Instruments | — |
| LM4871MM/NOPB.A | Texas Instruments | — |
| LM4871MMX | Texas Instruments | — |
| LM4871MMX/NOPB | Texas Instruments | — |
| LM4871MMX/NOPB.A | Texas Instruments | — |
| LM4871MX/NOPB | Texas Instruments | — |
| LM4871MX/NOPB.A | Texas Instruments | — |
| LM4871N | Texas Instruments | — |
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