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UC3177 の電気的特性と機能

UC3177のメーカーはUnitrodeです、この部品の機能は「Full Bridge Power Amplifier」です。


製品の詳細 ( Datasheet PDF )

部品番号 UC3177
部品説明 Full Bridge Power Amplifier
メーカ Unitrode
ロゴ Unitrode ロゴ 




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UC3177 Datasheet, UC3177 PDF,ピン配置, 機能
UC3176
UC3177
Full Bridge Power Amplifier
FEATURES
Dual Power Operational Amplifiers
• ±2A Output Current Guaranteed
Precision Current Sense Amplifier
Two Supply Monitoring Inputs
Parking Function and Under-Voltage
Lockout
Safe Operating Area Protection
3V to 35V Operation
DESCRIPTION
The UC3176/7 family of full bridge power amplifiers is rated for a continu-
ous output current of 2A. Intended for use in demanding servo applica-
tions such as disk head positioning, the onboard current sense amplifier
can be used to obtain precision control of load current, or where voltage
mode drive is required, a standard voltage feedback scheme can be used.
Output stage protection includes foldback current limiting and thermal
shutdown, resulting in a very rugged device.
Auxiliary functions on this device include a dual input under-voltage com-
parator that can be programmed to respond to low voltage conditions on
two independent supplies. In response to an under-voltage condition the
power Op-Amps are inhibited and a high current, 100mA, open collector
drive output is activated. A separate Park/Inhibit command input.
The devices are operational over a 3V to 35V supply range. Internal un-
der-voltage lockout provides predictable power-up and power-down char-
acteristics.
BLOCK DIAGRAM
SLUS285A - OCTOBER 1994 - REVISED JANUARY 2005

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UC3177 pdf, ピン配列
UC3176
UC3177
ELECTRICAL CHARACTERISTICS:Unless otherwise stated, specifications hold for TA = 0 to 70°C, +VIN = 12V, TA = TJ.
PARAMETER
Current Sense Amplifier
Input Offset Voltage
Thermal Gradient Sensitivity
PSRR
Gain
Slew Rate
3dB Bandwidth
MAX Output Current
Output Saturation Voltage
Under-Voltage Comparator
Threshold Voltage
Input Current
Supply OK VSAT (UC3177 Only)
Supply OK Leakage (UC3177 Only)
Park/Inhibit
Park/Inhibit Thl’d
Park/Inhibit Input Current
Parking Drive Saturation Voltage
Parking Drive Leakage
Thermal Shutdown
Shutdown Temperature
TEST CONDITIONS
MIN. TYP. MAX. UNITS
VCM = 0V, A+ / REF at 6V
REF = 2V to 20V, +VIN = 35, change with REF
Input voltage
3 mV
600 µV/V
+VIN = 20V, REF = 10V Pd = 20W @ A or B
Output
5.0 75.0 µV/W
REF = 2.5V, +VIN = 5 to 35V
/AISINK-BISINK / 0.5V
70 100
dB
7.8 8.0 8.1 V/V
2 V/µS
1 MHz
ISOURCE = +VIN - VOUT = 0.5V
ISOURCE = 1.5mA, High Side
ISINK = 5mA, Low Side
2.5 3.5
mA
0.15 0.30 V
1.4 1.85 V
Low to High, other input at 5V
Threshold Hysteresis
Input = 2V, other input at 5V
IOUT = 5mA
VOUT = 35V
1.44
50
–2.00
1.50
70
–.05
1.56
80
0.45
5
V
mV
µA
V
µA
At threshold
IOUT = 100mA
VOUT = 35V
1.1 1.3 1.7 V
60 100 µA
0.3 0.7 V
15 µA
165 °C
Output saturation voltage vs. current. Maximum source current vs. + VIN – Crossover current error
VOUT.
characteristic.
3


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共有リンク

Link :


部品番号部品説明メーカ
UC3172A

Full Bridge Power Amplifier

Texas Instruments
Texas Instruments
UC3173A

Full Bridge Power Amplifier

Texas Instruments
Texas Instruments
UC3176

Full Bridge Power Amplifier

Unitrode
Unitrode
UC3176

Full Bridge Power Amplifier (Rev. A)

Texas Instruments
Texas Instruments


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