TA8231LQ Toshiba, TA8231LQ Datasheet - Page 3

• Manufacturer Part Number: TA8231LQ
• Manufacturer: Toshiba

Specifications of TA8231LQ

• No. Of Channels: 2
• Package: HZIP 17-P-2.00
• Recommended Vcc (v): 13.2
• Rl=2 Ohm: 37W x 2
• Rl=4 Ohm: 22W x 2
• Rl=8 Ohm: -
• Features/built-in Functions: 2 BTL channels, standby switch, negative feedback cap. not required
• Operating Voltage (v): 9 to 18

2. Stand−by SW function
3. Preventive measure against oscillation
By means of controlling pin(1) (stand−by terminal) to high
and low,the power supply can be set to on and off.
The threshold voltage of pin(1) is set at about 3V (typ.),
and the power supply current is about 100µA (typ.) at the
stand−by state.
Pin (1) control voltage: V
~Advantage of stand−by SW~
For preventing the oscillation, it is advisable to use C4, the condenser of polyester film having small
characteristic fluctuation of the temperature and the frequency.
The resistance R to be series applied to C4 is effective for phase correction of high frequency, and improves
the oscillation allowance.
Since the oscillation allowance is varied according to the causes described below, perform the temperature
test to check the oscillation allowance.
(1) Capacity value of condenser
(2) Kind of condenser
(3) Layout of printed board
Stand−by
(1) Since V
(2) Since the control current is microscopic, the switching relay of small current capacity is satisfactory
On
Off
omitted.
for switching.
CC
can directly be controlled to on / off by the microcomputer, the switching relay can be
Power
Off
On
(SB)
V
3~V
(SB)
0~2
CC
(V)
3
TA8231LQ
2004-09-28