Electrical Characteristics: d -40≤TA≤85˚C RT=680kΩ, CT=0.022µF for triangular mode, VCC=15V (Note 1),
RT=10kΩ, CT=3.3nF for sawtooth mode (See Fig. 3), unless otherwise stated.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
ꢀ Reference Section
Output Voltage
TJ=25˚C, IOUT=1mA
8.4≤VCC≤16V
1≤IOUT≤20mA
(Note 2)
Line, Load, Temp. (Note 2)
10Hz≤f≤10kHz, TJ=25˚C (Note 2)
TA=125˚C, 1000 Hrs. (Note 2)
TA=25˚C
4.90
5.00
6
6
5.10
20
25
0.4
5.18
V
Line Regulation
Load Regulation
mV
mV
mV/˚C
V
µV
mV
mA
Temperature Stability
Total Output Variation
Output Noise Voltage
Long Term Stability
Output Short Circuit
0.2
4.82
-30
50
5
-100
25
-180
ꢀ Oscillator Section
Initial Accuracy
Sawtooth Mode: (See Fig. 3)TJ=25˚C
Sawtooth Mode: -40˚C≤TA≤+85˚
Triangular Mode (See Fig. 3) TJ=25˚C
47
44
44
52
52
52
57
60
60
kHz
kHz
kHz
Voltage Stability
8.4V≤Vcc≤16V
0.2
1.0
%
Temperature Stability
Sawtooth Mode TMIN≤TA≤TMAX
Triangular Mode TMIN≤TA ≤TMAX
(Note 2)
5
8
%
%
Amplitude
Discharge current
VOSC (peak to peak)
TJ=25˚C
TMIN≤TA≤TMAX
1.7
8.3
V
mA
mA
7.4
7.2
9.2
9.4
ꢀ Error Amp Section
Input Voltage
VCOMP=2.5V
VFB=0V
2≤VOUT≤4V
(Note 2)
2.42
2.50
-0.3
90
1.0
70
6
-0.8
6
2.58
-2.0
V
Input Bias Current
AVOL
Unity Gain Bandwidth
PSRR
Output Sink Current
Output Source Current
µA
dB
MHz
dB
mA
mA
V
65
0.7
60
2
-0.5
5
8.4V≤VCC≤16V
VFB=2.7V, VCOMP=1.1V
VFB=2.3V, VCOMP=5V
VFB=2.3V, RL=15kΩ to ground
VFB=2.7V, RL=15kΩ to VREF
VOUT High
VOUT Low
0.7
1.1
V
ꢀ Current Sense Section
Gain
(Notes 3 & 4)
2.85
0.9
3.00
1.0
70
-2
150
3.15
1.1
V/V
V
dB
µA
ns
Maximum Input Signal
PSRR
Input Bias Current
Delay to Output
VCOMP=5V (Note 3)
12V≤VCC≤25V (Note 3)
VSense=0V
-10
300
TJ=25˚C (Note 2)
Notes:
1. Adjust Vcc above the start threshold before setting at 15V.
2.These parameters, although guaranteed, are not 100% tested in production.
3. Parameter measured at trip point of latch with VFB=0.
4. Gain defined as:
∆VCOMP
A =
; 0 ≤ VSense ≤ 0.8V.
∆VSense
2
CHERRY [ CHERRY SEMICONDUCTOR CORPORATION ]
