TB2926HQ Toshiba, TB2926HQ Datasheet - Page 5
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TB2926HQ
Manufacturer Part Number
TB2926HQ
Description
Manufacturer
Toshiba
Datasheet
1.TB2926HQ.pdf
(18 pages)
Specifications of TB2926HQ
No. Of Channels
4
Package
HZIP 25-P-1.00F
Recommended Vcc (v)
13.2
Rl=2 Ohm
Not Supported
Rl=4 Ohm
43W x 4
Rl=8 Ohm
-
Features/built-in Functions
4 BTL channels, standby switch, mute, low-RON BiCD process, DC offset detection
Operating Voltage (v)
9 to 18
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
TB2926HQ
Manufacturer:
TOSHIBA/东芝
Quantity:
20 000
V
ref
3. DC Offset Detection
Voltage at (A)
Voltage at (B)
(LPF output)
Elec. vol
Amp output
The purpose of the integrated DC offset detector is to avoid an anomalous DC offset on the outputs,
produced by the input capacitor due to leakage current or short-circuit.
(pin 25)
GND
GND
GND
Leakage current
or short-circuit
V
ref/2
R
S1
V
Figure 5 DC Offset Detection Mechanism
bias
+
−
R
25
S2
5
A
V
5 V
LPF
B
Positive DC offset (+)
(caused by R
V
Negative DC offset (−)
(caused by R
The microcontroller shuts down the
system if the output is lower than
the specified voltage.
CC
To a microcontroller
/2 (normal DC voltage)
Time
Time
Time
OUT(+)
S1
S2
OUT(-)
V
Offset detection
threshold voltage
CC
)
)
TB2926HQ
/2
2006-11-27