IMP38C/HC/42/3/4/5
Absolute Maximum Ratings
VCC Supply Voltage . . . . . . . . . . . . . . . . . . . . . . 20V
VCC Supply Current . . . . . . . . . . . . . . . . . . . . . . 30mA
IOUT Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.0A
Current-Sense and Feedback Inputs . . . . . . . . 0.3V to 5.5V
Operation Junction Temperature . . . . . . . . . . . +150°C
Storage Temperature . . . . . . . . . . . . . . . . . . . . . –65°C to +150°C
Lead Soldering Temperature (10 seconds) . . . +300°C
Package Thermal Resistance
8-Pin Plastic DIP (θJA) . . . . . . . . . . . . . . . . . 125°C/W
8-Pin MicroSO (θJA) . . . . . . . . . . . . . . . . . . . 250°C/W
8-Pin SO (θJA) . . . . . . . . . . . . . . . . . . . . . . . . 170°C/W
14-Pin Plastic DIP (θJA) . . . . . . . . . . . . . . . . 90°C/W
14-Pin SO (θJA) . . . . . . . . . . . . . . . . . . . . . . . 145°C/W
Note: All voltages are referenced to GND.
These are stress ratings only and functional operation is not
implied. Exposure to absolute maximum ratings for prolonged
time periods may affect device reliability.
Electrical Characteristics
Unless otherwise noted, VCC = 15V, RT = 10kΩ and CT = 3.3nF. Specifications are over the – 40°C to +85°C ambient temperature range.
Bold/blue specifications indicate enhanced performance features.
Parameter
Symbol
Conditions
Min
Typ
Max
Units
Reference
Output voltage
VREF
TA = +25°C, IO = 1mA
4.90
5.00
2
5.10
20
V
mV
mV
mV/°C
V
Line Regulation
12V ≤ VCC ≤ 18V, IOUT = 5µA
1mA ≤ IO ≤ 20mA
Load Regulation
1
25
Temperature Stability
Total Reference Variation
Output Noise Voltage
Long Term Stability
Output Short Circuit
Oscillator Section
Initial Accuracy
TCREF
Note 1
0.2
Line, Load, Temperature, Note 1
10Hz ≤ f ≤ 10kHz, TA = +25°C, Note 1
TA = 125°C, 1000 Hours, Note 1
4.82
5.18
VN
50
µV
TBD
mV
mA
ISC
–30
–40
–180
fINIT
TA = 25°C, Note 5
12V ≤ VCC ≤ 18V
Note 1
49
52
0.2
0.04
8.4
1.7
55
kHz
%
Voltage Stability
1.0
Temperature Stability
Discharge Current
Amplitude peak-to-peak
Error Amplifier Section
Input Voltage
TCOSC
%/°C
mA
V
VRT/CT = 2V
7.2
1.1
12.0
2.3
VOSC, P-P
VRT/CT peak-to-peak
VIN
IB
VCOMP = 2.5V
2.45
–1
2.50
2.55
V
µA
dB
MHz
dB
mA
mA
V
Input Bias Current
Open Loop Gain
VFB = 4.5V
1
AVOL
UGBW
PSRR
IOL
2V ≤ VO ≤ 4V, Note 1
Note1
65
90
Unity Gain Bandwidth
Power Supply Rejection Ratio
Output Sink Current
Output Source Current
VOUT High
0.7
60
1.0
VSTART ≤ VCC ≤ VCCMAX
VFB = 2.7V, Vcomp = 1.1V
VFB = 2.3V, Vcomp = 5.0V
VFB = 2.3V, RL = 15kΩ to ground
VFB = 2.7V, RL = 15kΩ to VREF
2
6
IOH
–0.5
4.5
–1.0
4.6
VOH
VOL
5.0
VOUT Low
0.30
0.50
V
!S
4
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