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TC170 データシート(Datasheet) 3 Page - Microchip Technology

部品番号. TC170
部品情報  CMOS Current Mode PWM Controller
ダウンロード  16 Pages
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メーカー  MICROCHIP [Microchip Technology]
ホームページ  http://www.microchip.com
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© 2002 Microchip Technology Inc.
DS21395B-page 3
TC170
1.0
ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings*
Supply Voltage ....................................................... 18V
Output Voltage ........................................... VDD or 18V
Analog Inputs .................................. -0.3V to VS +0.3V
Package Thermal Resistance:
SOIC (Wide)
θJA .....................................105°C/W
SOIC (Wide)
θJC .......................................23°C/W
PDIP (Narrow)
θJA ....................................95°C/W
PDIP (Narrow)
θJC ....................................55°C/W
Operating Temperature Range ............... 0°C to +70°C
Storage Temperature Range .............. -65°C to +150°C
*Stresses above those listed under "Absolute Maximum
Ratings" may cause permanent damage to the device. These
are stress ratings only and functional operation of the device
at these or any other conditions above those indicated in the
operation sections of the specifications is not implied.
Exposure to Absolute Maximum Rating conditions for
extended periods may affect device reliability.
TC170 ELECTRICAL SPECIFICATIONS
Electrical Characteristics: VIN =16V,RO =24kΩ,CO = 1nF, TA = 25°C, unless otherwise noted.
Symbol
Parameter
Min
Typ
Max
Units
Test Conditions
Reference Voltage
VREF
Reference Voltage
5
5.1
5.3
V
IOUT =1mA
Line Regulation
5
15
mV
VIN =8V to 16V
Load Regulation
13
20
mV
IOUT = 1mA to 10mA
VRTC
Temperature Coefficient
0.4
0.5
mV/°C
Over operating temperature range.
Oscillator
F
Oscillator Frequency
35
42
46
kHz
VCOSC
Voltage Stability
1.1
1.5
%/V
VIN =8V to 16V
TCOSC
Temperature Stability
5
10
%
Over operating temperature range.
Error Amplifier
VOS
Input Offset Voltage
±30
mV
IB
Input Bias Current
±1
nA
VCMRR
Common-Mode Input Voltage
0
VDD –2V
V
VIN =8V to 16V
AVOL
Open-Loop Voltage Gain
70
dB
VOUT =1V to6V
BW
Unity Gain Bandwidth
1.2
MHz
CMRR
Common-Mode Rejection Ratio
60
dB
VCMV =0V to14V
PSRR
Power Supply Rejection Ratio
60
dB
VIN =8V to 16V
Current Sense Amplifier
AIAMP
Amplifier Gain
3
3.15
3.3
V/V
Pin 3 = 0V to 1.1V
VDM
Maximum Differential Input Signal
≤ 1.1
V
VPIN4 –VPIN3
VCM
Common-Mode Input Voltage
0
VDD –3V
V
Current Limit Adjust
VOS
Current Limit Offset Voltage
0.5
1
V
IB
Input Bias Current
1
nA
Shutdown Terminal
VTH
Threshold Voltage
0.3
0.35
0.4
V
VIN
Input Voltage Range
0
VDD
V
IL
Minimum Latching Current at Pin 1
125
µA
IL
Maximum Nonlatching Current at Pin 1
50
µA




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