
2
CMOS CURRENT MODE
PWM CONTROLLER
TC170
TC170-5 10/7/99
ELECTRICAL CHARACTERISTICS: VIN = 16V, RO = 24k, CO = 1nF, TA = 25°C, unless otherwise indicated.
Symbol
Parameter
Test Conditions
Min
Typ
Max
Unit
Reference Voltage
VREF
Output Voltage
IOUT = 1mA
5
5.1
5.3
V
Line Regulation
VIN = 8V to 16V
5
15
mV
Load Regulation
IOUT = 1mA to 10mA
13
20
mV
VRTC
Temperature Coefficient
Over Operating Temperature Range
0.4
0.5
mV/
°C
Oscillator
Oscillator Frequency
35
42
46
kHz
Voltage Stability
VIN = 8V to 16V
1.1
1.5
%/V
Temperature Stability
Over Operating Temperature Range
5
10
%
Error Amplifier
VOS
Input Offset Voltage
30
mV
IB
Input Bias Current
1nA
VCMRR
Common-Mode Input Voltage
VIN = 8V to 16V
0
VDD – 2V
V
AVOL
Open-Loop Voltage Gain
VOUT = 1V to 6V
70
dB
BW
Unity Gain Bandwidth
1.2
MHz
CMRR
Common-Mode Rejection Ratio
VCMV 0V to 14V
60
dB
PSRR
Power Supply Rejection Ratio
VIN = 8V to 16V
60
dB
Current Sense Amplifier
Amplifier Gain
Pin 3 = 0V to 1.1V
3
3.15
3.3
V/V
Maximum Differential Input Signal
VPIN4 – VPIN3
≤ 1.1
V
Common-Mode Input Voltage
0
VDD – 3V
V
Current Limit Adjust
Current Limit Offset Voltage
0.5
1
V
IB
Input Bias Current
1nA
Shutdown Terminal
VTB
Threshold Voltage
0.3
0.35
0.4
V
VIN
Input Voltage Range
0
VDD
V
Minimum Latching Current at Pin 1
125
A
Maximum Nonlatching Current at Pin 1
50
A
Output Stage
VDD
Output Voltage
Pin 13
VIN – 0. 5
VIN
VIN + 0.5
V
VOL
Output Low Level
ISINK = 20mA
0.4
V
VOL
Output Low Level
ISINK = 100mA
2
V
VOH
Output High Level
ISOURCE = 20mA
VDD – 1V
V
PDIP (Narrow)
θJA (Junction to Ambient) ............................... 95°C/W
θJC (Junction to Case) ................................... 55°C/W
Operating Temperature Range
Commercial ........................................... 0
°C to +70°C
*Static-sensitive device. Unused devices must be stored in conductive
material. Protect devices from static discharge and static fields. Stresses
above those listed under Absolute Maximum Ratings may cause perma-
nent 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 operational sections of the specifications is not implied.
Exposure to Absolute Maximum Rating Conditions for extended periods
may affect device reliability.
ABSOLUTE MAXIMUM RATINGS*
Supply Voltage ............................................................ 18V
Output Voltage ................................................ VDD or 18V
Analog Inputs ..................................... – 0.3V to VS + 0.3V
Storage Temperature Range ................ – 65
°C to +150°C
Lead Temperature (Soldering, 10 sec) ................. +300
°C
Maximum Chip Temperature ................................... 150
°C
Plastic Package Thermal Resistance:
SOIC (Wide)
θJA (Junction to Ambient) ............................. 105°C/W
θJC (Junction to Case) ................................... 23°C/W