TA8225HQ Toshiba, TA8225HQ Datasheet - Page 4

• Manufacturer Part Number: TA8225HQ
• Manufacturer: Toshiba

Specifications of TA8225HQ

• Operational Class: Class-AB
• Audio Amplifier Output Configuration: 1-Channel Mono
• Output Power (typ): 45x1@2OhmW
• Audio Amplifier Function: Speaker
• Single Supply Voltage (typ): 12/15V
• Dual Supply Voltage (typ): Not RequiredV
• Power Supply Requirement: Single
• Power Dissipation: 50W
• Rail/rail I/o Type: No
• Single Supply Voltage (min): 9V
• Single Supply Voltage (max): 18V
• Dual Supply Voltage (min): Not RequiredV
• Dual Supply Voltage (max): Not RequiredV
• Operating Temp Range: -30C to 85C
• Operating Temperature Classification: Commercial
• Mounting: Through Hole
• Pin Count: 17
• Package Type: HZIP
• No. Of Channels: 1
• Package: HZIP 17-P-2.00
• Recommended Vcc (v): 13.2
• Rl=2 Ohm: 40W x 1
• Rl=4 Ohm: 23W x 1
• Rl=8 Ohm: -
• Features/built-in Functions: Standby switch
• Operating Voltage (v): 9 to 18
• Lead Free Status / Rohs Status: Compliant

(1) In−phase and negative phase NF capacitor charging time
In (Fig.2), when the power source is turned on, Q
the route of V
is not properly paired with that a negative−phase capacitor, output offset voltage = pop noise is produced
because a charging time of NF capacitor differs between the in−phase and negative−phase outputs.
Therefore, to suppress the pop noise it is necessary to properly pair the in−phase and negative−phase NF
capacitors. Output and NF DC voltage waveforms by the pairing of NF capacitors: C
and (Fig.4).
Further, voltage waveforms are shown when the power source was turned on, under the following conditions:
V
Output DC voltage V
NF DC voltage V
CC
= 13.2V, R
CC
→Q
L
2
= 4Ω, Ta = 25°C, and input shot−circuit.
NF
→R→boot→C
: (1V / div, 200ms / div)
OUT
: (2V / div, 200ms / div)
BS
→out→R
0
→C
1
and Q
4
NF
. For instance, if the capacity of an in−phase capacitor
2
are turned on, and NF capacitors are charged in
NF
TA8225HQ/LQ
are shown in (Fig.3)
2006-04-28