TC170 Datasheet, PDF (3/16 Pages) TelCom Semiconductor, Inc – CMOS CURRENT MODE PWM CONTROLLER

TC170
1.0 ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings*
Supply Voltage ....................................................... 18V
Output Voltage ........................................... V_DD or 18V
Analog Inputs .................................. -0.3V to V_S + 0.3V
Package Thermal Resistance:
SOIC (Wide) θ_JA ..................................... 105°C/W
SOIC (Wide) θ_JC ....................................... 23°C/W
PDIP (Narrow) θ_JA .................................... 95°C/W
PDIP (Narrow) θ_JC .................................... 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: V_IN = 16V, R_O = 24kΩ, C_O = 1nF, T_A = 25°C, unless otherwise noted.
Symbol
Parameter
Min
Typ
Max
Units
Test Conditions
Reference Voltage
V_REF
Reference Voltage
5
Line Regulation
Load Regulation
V_RTC
Temperature Coefficient
Oscillator
F
Oscillator Frequency
35
VC_OSC Voltage Stability
TC_OSC Temperature Stability
Error Amplifier
V_OS
Input Offset Voltage
I_B
Input Bias Current
V_CMRR Common-Mode Input Voltage
0
A_VOL
Open-Loop Voltage Gain
70
BW
Unity Gain Bandwidth
CMRR Common-Mode Rejection Ratio
60
PSRR Power Supply Rejection Ratio
60
Current Sense Amplifier
A_IAMP Amplifier Gain
3
V_DM
Maximum Differential Input Signal
V_CM
Common-Mode Input Voltage
0
Current Limit Adjust
V_OS
Current Limit Offset Voltage
0.5
I_B
Input Bias Current
Shutdown Terminal
V_TH
Threshold Voltage
0.3
V_IN
Input Voltage Range
0
I_L
Minimum Latching Current at Pin 1
125
I_L
Maximum Nonlatching Current at Pin 1
5.1
5.3
V
I_OUT = 1mA
5
15
mV V_IN = 8V to 16V
13
20
mV I_OUT = 1mA to 10mA
0.4
0.5
mV/°C Over operating temperature range.
42
46
kHz
1.1
1.5
%/V V_IN = 8V to 16V
5
10
% Over operating temperature range.
±30
mV
±1
nA
V_DD – 2V
V V_IN = 8V to 16V
dB V_OUT = 1V to 6V
1.2
MHz
dB V_CMV = 0V to 14V
dB V_IN = 8V to 16V
3.15
3.3
≤ 1.1
V_DD – 3V
V/V Pin 3 = 0V to 1.1V
V
V_PIN4 – V_PIN3
V
1
V
1
nA
0.35
0.4
V
V_DD
V
µA
50
µA
© 2002 Microchip Technology Inc.
DS21395B-page 3