ISL6722A_15 Datasheet, PDF (7/26 Pages) Intersil Corporation – Flexible Single Ended Current Mode PWM Controllers

ISL6722A, ISL6723A
Electrical Specifications
Recommended operating conditions unless otherwise noted. Refer to Block Diagram and Typical Application
schematic. 9V < V_CC = V_C < 20V, Rt = 11k, Ct = 330pF, T_A = -40°C to +105°C (Note 4),
Typical values are at T_A = +25°C (Continued)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
Blanking Time
(Note 6)
30
60
100
ns
Gain, A_CS
ERROR AMPLIFIER
V_SLOPE = 0V, V_FB = 2.3V,
V_ISET = 0.35V, 1.5V
A_CS = ISET/ISENSE
0.77
0.79
0.81
V/V
Open Loop Voltage Gain
(Note 6)
60
90
-
dB
Gain-Bandwidth Product
(Note 6)
-
15
-
MHz
Reference Voltage Initial Accuracy
Reference Voltage
COMP to PWM Gain, A_COMP
COMP to PWM Offset
V_FB = COMP, T_A = +25°C (Note 6) 2.465
2.515
2.565
V
V_FB = COMP
2.44
2.515
2.590
V
COMP = 4V, T_A = +25°C
0.31
0.33
0.35
V/V
COMP = 4V
0.51
0.75
0.88
V
FB Input Bias Current
COMP Sink Current
COMP Source Current
COMP VOH
COMP VOL
PSRR
V_FB = 0V
COMP = 1.5V, V_FB = 2.7V
COMP = 1.5V, V_FB = 2.3V
V_FB = 2.3V
V_FB = 2.7V
Frequency = 120Hz (Note 6)
-2
0.1
2
A
2
6
-
mA
-0.25
-0.5
-
mA
4.25
4.4
5.0
V
0.4
0.8
1.2
V
60
80
-
dB
SS Clamp, V_COMP
OSCILLATOR
SS = 2.5V, V_FB = 0V, ISET = 2V
2.4
2.5
2.6
V
Frequency Accuracy
289
318
347
kHz
Frequency Variation with VCC
Temperature Stability
T_A = +105°C (f_20V - f_9V)/f_9V
T_A = -40°C (f_20V - f_9V)/f_9V
(Note 6)
-
2
3
%
2
3
-
8
-
%
Maximum Duty Cycle
(Note 7)
68
75
81
%
Comparator High Threshold
-
3.00
-
V
Comparator High Threshold w/Ext. SYNC (ISL6723A) (Note 6)
-
4.00
-
V
Comparator Low Threshold
-
1.50
-
V
Discharge Current
SOFT-START
T_A = 0°C to +105°C
T_A = -40°C to +105°C
0.75
1.0
1.2
mA
0.70
1.0
1.2
Charging Current
SS = 2V
-40
-55
-70
A
Charged Threshold Voltage
4.26
4.50
4.74
V
Initial Overcurrent Discharge Current
Sustained OC Threshold
< SS < Charged Threshold
30
40
55
A
Overcurrent Shutdown Threshold Voltage
Fault Discharge Current
Charged Threshold minus,
T_A = +25°C
SS = 2V
0.110
0.125
0.140
V
0.25
1.0
-
mA
Reset Threshold Voltage
T_A = +25°C
0.22
0.27
0.31
V
7
FN9237.2
September 29, 2015