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参数资料
| 型号： | TA84007SG |
| 元件分类： | 运动控制电子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, 1.2 A, PSIP9 |
| 封装： | 2.54 MM PITCH, SIP-9 |
| 文件页数： | 16/16页 |
| 文件大小： | 362K |
| 代理商： | TA84007SG |
TA84007PQ/SG/FG
2006-3-6
9
Usage Precautions
Power Input
When turning on the power, first apply power to VCC and then apply power to VS. (NOTE: It is also okay to
apply power to both at the same time.) When turning off the power, first turn off VS and then turn off VCC.
(NOTE: It is also okay to turn off both at the same time.)
Input Circuitry
As shown in the drawing, input is high-active.
When you apply the defined VIN (H) amount of
voltage (or greater), the logic will go high and if you
apply the defined VIN (L) amount of voltage (or
lower) the corresponding pin will be grounded and
logic will go low.
In addition, when logic is high, input current IIN
will be inputted so be careful of the prior stage’s
output impedance.
Input hysteresis is 0.7 V (typ.)
When turning on the power (VCC), keep input
(both IN1 and IN2) low.
Output Circuitry
Output “H” Voltage
Vref Voltage Operation
The voltage applied to Vref is filtered through the
Vref circuit and the resulting 2VBE (small signal)
high voltage is applied to Q2 (Pw Tr)’s base-A. The
resulting VBE (Q2) low voltage is output as VOUT (H).
VOUT = Vref + 2VBE VBE (Q2) @ Vref + 0.7 V
About the Vref Pin
When you aren’t using the Vref pin, don’t leave it
open but rather connect it to the VS pin using
protective resistance (of 3 k
or higher).
Also, design your application so that Vref ≤ VS.
Protector Function
Overcurrent Protection
If the current flowing to the upper power transistor is detected as being over the configured current threshold
(about 2.5 A), the overcurrent protector turns off all output. However, this doesn’t protect against all potential
overcurrent scenarios. For example, it is possible to destroy the IC due to an output short-circuit or grounding
fault prior to the overcurrent protector even being activated. Please connect a resistor or fuse to the power (VS)
line as protection against such overcurrent scenarios. (Refer to the application example on the next page.)
Thermal Shutdown
If the chip’s temperature is detected as being over the configured temperature threshold (about 170°C), the
thermal shutdown circuit turns off all output.
or
VIN
6/1/9
4.5
k
5/9/7
1 k
10
k
10
k
1.3
k
1/5/1
VIN
5 k
VCC standby
TA84007PQ/SG/FG
or
A
1/5/1
VOUT
Q1
10/3/13
2/7/4
4/8/5
8/6/15
Vref
circuit
Q2
TA84007PQ/SG/FG
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TA8400P | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:DUAL BRIDGE DRIVER |
| TA8401F | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:FUNCTIONAL BRIDGE DRIVER |
| TA8401F/FG | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:Functional Bridge Driver |
| TA8401F_06 | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:Functional Bridge Driver |
| TA8401FG | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:Functional Bridge Driver |
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