TS4871IQT STMicroelectronics, TS4871IQT Datasheet - Page 7

• Manufacturer Part Number: TS4871IQT
• Description: IC AMP AUDIO PWR 1W MONO AB 8DFN
• Manufacturer: STMicroelectronics
• Type: Class ABr

Specifications of TS4871IQT

• Output Type: 1-Channel (Mono)
• Max Output Power X Channels @ Load: 1W x 1 @ 8 Ohm
• Voltage - Supply: 2.5 V ~ 5.5 V
• Features: Depop, Standby, Thermal Protection
• Mounting Type: Surface Mount
• Package / Case: 8-DFN
• Operational Class: Class-AB
• Audio Amplifier Output Configuration: 1-Channel Mono
• Output Power (typ): 1x1@8OhmW
• Audio Amplifier Function: Speaker
• Total Harmonic Distortion: 0.15@8Ohm@250mW%
• Single Supply Voltage (typ): 3/5V
• Dual Supply Voltage (typ): Not RequiredV
• Supply Current (max): 8@5VmA
• Power Supply Requirement: Single
• Unity Gain Bandwidth Product (typ): 2MHz
• Rail/rail I/o Type: Rail to Rail Output
• Power Supply Rejection Ratio: 75dB
• Single Supply Voltage (min): 2.5V
• Single Supply Voltage (max): 5.5V
• Dual Supply Voltage (min): Not RequiredV
• Dual Supply Voltage (max): Not RequiredV
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 8
• Package Type: DFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-8113-2; TS4871IQT

Fig. 10 : Power Supply Rejection Ratio (PSRR)
vs Power supply
Fig. 12 : Power Supply Rejection Ratio (PSRR)
vs Bypass Capacitor
Fig. 14 : Power Supply Rejection Ratio (PSRR)
vs Feedback Resistor
-10
-20
-30
-40
-50
-60
-70
-80
-10
-20
-30
-40
-50
-60
-70
-80
-30
-40
-50
-60
-70
-80
10
10
10
Cb=100 F
Vcc = 5, 3.3 & 2.6V
Cb = 1 F & 0.1 F
Vripple = 200mVrms
Input = floating
RL = 8
Tamb = 25 C
Vripple = 200mVrms
Rfeed = 22
Input = floating
RL = 8
Tamb = 25 C
Vcc = 5V, 3.3V & 2.6V
Cb = 1 F & 0.1 F
Cb=1 F
100
100
100
Cb=10 F
Frequency (Hz)
Frequency (Hz)
Frequency (Hz)
Rfeed=47k
Rfeed=110k
1000
1000
1000
Vcc = 5, 3.3 & 2.6V
Rfeed = 22k
Rin = 22k, Cin = 1 F
Rg = 100 , RL = 8
Tamb = 25 C
Cb=47 F
10000
10000
10000
Rfeed=10k
Rfeed=22k
100000
100000
100000
Fig. 11 : Power Supply Rejection Ratio (PSRR)
vs Feedback Capacitor
Fig. 13 : Power Supply Rejection Ratio (PSRR)
vs Input Capacitor
-10
-20
-30
-40
-50
-60
-10
-20
-30
-40
-50
-60
-70
-80
10
10
Vcc = 5, 3.3 & 2.6V
Cb = 1 F & 0.1 F
Rfeed = 22k
Vripple = 200mVrms
Input = floating
RL = 8
Tamb = 25 C
Cin=1 F
Cin=22nF
Cin=330nF
Cin=100nF
100
100
Cin=220nF
Frequency (Hz)
Frequency (Hz)
1000
1000
Vcc = 5, 3.3 & 2.6V
Rfeed = 22k , Rin = 22k
Cb = 1 F
Rg = 100 , RL = 8
Tamb = 25 C
Cfeed=150pF
Cfeed=330pF
Cfeed=680pF
Cfeed=0
10000
10000
TS4871
100000
100000
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