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| 型号： | TA2092N |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDIP24 |
| 封装： | 0.300 INCH, 1.78 MM PITCH, PLASTIC, SDIP-24 |
| 文件页数： | 5/7页 |
| 文件大小： | 212K |
| 代理商： | TA2092N |
TA2092N
2001-12-19
5
Precaution Use
Input stage
Input stages are consisted of differential circuit of NPN Tr, and have built-in IB compensation circuit.
Built-in driver
Each channel driver consists of BTL configuration linear amplifier.
Voltage gain is fixed: GV = 15.5dB (typ.)
Voltage loss for output stage is 2 VBE = VCE (sat) for positive cycle, VCE (sat) for negative cycle, because of
no-bootstrap circuit. So, output DC voltage is designed as less than 1/2 VCC.
VRI terminal
VRI is reference voltage terminal for input signal.
If reference voltage from servo IC drop less than 1.8 V, protection circuit operates and shut off bias circuit
inside. This operation is to prevent load from moving undesireably in case of VRI drop for accident or some
reason.
VCI terminal
Output DC voltage is determined by circuit of this terminal inside as;
VCI = VOUT (DC) = (VCCVF) /2
Output signal dynamic range is depend on VCC. On the other hand, input signal dynamic range is determined
by VRI as mentioned and voltage gain is fixed inside. So, maximum output voltage does not increase as VCC
increases.
Because of BTL configuration, Ripple Rejection Ratio does not improve not much when capacitor is connected
to VCI terminal to GND.
GND
Large signal GND is for output stage and small signal GND is for stages from input circuit to pre-output
stage.
These GND pins are not connected inside.
The heat of power dissipation is transferred to PCB, through these PW-GND Pin, because, 1, 12, 13, 24 pin
are connected each other and to substrate of Pellet to connected copper foil area as large as possible.
Oscillation preventive capacitor
We recommend to use the capacitor of 0.1 F, between each output terminals. But perform the temperature
test to check the oscillation allowance, since the oscillation allowance is varied according to the causes
described below.
1) Supply voltage
2) Ambient temperature
3) Load impedance
4) Capacity value of condenser
5) Kind of condenser
6) Layout of Printed board
We recommend to connect Pass-condenser, which is about 10 to 100 F between VRI terminal and GND.
VCI terminal is recommend to use “OPEN”.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TA2092N_01 | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:Power Driver IC for CD Player |
| TA2099F | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:AM/FM IF+FM STEREO DETECTOR (FOR DIGITAL TUNING SYSTEM) |
| TA2099N | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:AM/FM IF+FM STEREO DETECTOR (FOR DIGITAL TUNING SYSTEM) |
| TA20A4V | 制造商:TOPSTEK 制造商全称:TOPSTEK 功能描述:Topstek Current Transducer |
| TA20A-TB-B | 制造商:Carling Technologies 功能描述:T-SERIES ROCKER SWITCH - Bulk |
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