Features: · Single-cell 0.9V to 2.5V battery operation
· BTL mode for mono speaker
· Single ended headphone operation with coupling capacitors
· Unity-gain stable
· "Click and pop" suppression circuitry
· Active low micropower shutdown
· Low current, active-low mute mode
· Thermal shutdown protection circuitryApplication· Portable one-cell audio products
· Portable one-cell electronic devicesPinout
Specifications
| Power@ 8Ohms, 1% THD |
0.085 Watt |
| Power@ 16Ohms, 1% THD |
0.055 Watt |
| Power@ 8Ohms, 10% THD |
0.1 Watt |
| Power@ 16Ohms, 10% THD |
0.7 Watt |
| THD |
0.2 % |
| PSRR |
66 dB |
| Channels |
2 Channels |
| THD Conditions |
RL=16 ohms, SE, Po=5mW |
| PSRR Conditions |
f=1kHz, R=16 ohms, SE |
| User Supply |
1.5 Volt |
| Temperature Min |
-40 deg C |
| Temperature Max |
85 deg C |
| View Using Catalog |
If Military/Aerospace specified devices are required,please contact the National Semiconductor Sales Office/Distributors for availability and specifications.
Supply Voltage .......................................................3.6V
Storage Temperature ......................−65°C to +150°C
Input Voltage..................................−0.3V to VDD +0.3V
Power Dissipation (Note 2)..................Internally limited
ESD Susceptibility(Note 3)...................................2000V
ESD Susceptibility (Note 4)................................... 200V
Junction Temperature........................................ 150°C
Solder Information
Small Outline Package Vapor
Phase (60sec).................................................... 215°C
Infrared (15 sec) ................................................220°C
See AN-450 "Surface Mounting and their Effects on
Product Reliablilty" for other methods of soldering
surface mount devices.
Thermal Resistance
JA (typ) MUB10A ..........................................175°C/W
JA (typ) LDA10A .............................................73°C/WDescriptionThe unity gain stable LM4916 is both a mono differential output (for bridge-tied loads or BTL) audio power amplifier and a Single Ended (SE) stereo headphone amplifier. Operating on a single 1.5V supply, the mono BTL mode delivers 85mW into an 8 load at 1% THD+N. In Single Ended stereo headphone mode, the amplifier delivers 14mW per channel into a 16 load at 1% THD+N.
With the LM4916 packaged in the MM and LLP packages, the customer benefits include low profile and small size. These packages minimize PCB area and maximizes output power.
The LM4916 features circuitry that reduces output transients ("clicks" and "pops") during device turn-on and turn-off, an externally controlled, low-power consumption, active-low shutdown mode, and thermal shutdown. Boomer audio power amplifiers are designed specifically to use few external components and provide high quality output power in a surface mount package.
Reliability Metrics
| Part Number |
Process |
EFR Reject |
EFR Sample Size |
PPM |
LTA Rejects |
LTA Device Hours |
FITS |
MTTF (Hours) |
| LM4916LD |
CMOS8 |
1 |
12195 |
83 |
0 |
1410500 |
3 |
400233226 |
| LM4916LDX |
CMOS8 |
1 |
12195 |
83 |
0 |
1410500 |
3 |
400233226 |
| LM4916MM |
CMOS8 |
1 |
12195 |
83 |
0 |
1410500 |
3 |
400233226 |
| LM4916MMX |
CMOS8 |
1 |
12195 |
83 |
0 |
1410500 |
3 |
400233226 |
Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.For more information on Reliability Metrics, please click here.
LM4916 Data Sheet
