ISL6366
Electrical Specifications Recommended Operating Conditions, V = 5V, Unless Otherwise specified. Boldface limits apply over the
CC
operating temperature range. (Continued)
MIN
MAX
PARAMETER
TEST CONDITIONS
(Note 7) TYP (Note 7) UNITS
OSCILLATORS
Accuracy of VR0 Switching Frequency Setting
Accuracy of VR1 Switching Frequency Setting
Maximum Switching Frequency
R
R
= 125kΩ
360
360
1.0
-
400
400
-
440
440
-
kHz
kHz
FS
= 125kΩ
FSS
MHz
MHz
mV/µs
mV/µs
mV/µs
%
-
0.08
3.2
6.2
3.2
99
Minimum Switching Frequency
FDVID = 10mV/µs
FDVID = 20mV/µs
2.5
5.0
2.5
95
2.8
5.55
2.8
97
83
Soft-start Ramp Rate for VR0
Soft-start Ramp Rate for VR1
Maximum Duty Cycle Per PWM for VR0
Maximum Duty Cycle for VR1
PWM GENERATOR (Note 7)
Sawtooth Amplitude for VR0
Sawtooth Amplitude for VR0
Sawtooth Amplitude for VR0
Maximum Adjustable Ramp for VR0
Minimum Adjustable Ramp for VR0
Sawtooth Amplitude for VR1
ERROR AMPLIFIER
400kHz, V
400kHz
< 1.8V
RAMP
69
96
%
R
R
R
= Open, all Switching Frequency
= 2.4MΩ to 12V, 500kHz
= 1.2MΩ to 12V, 500kHz
-
-
-
-
-
-
1
0.5
1
-
-
-
-
-
-
V
V
V
V
V
V
RAMP_ADJ
RAMP_ADJ
RAMP_ADJ
Applicable to VR0 Only
Applicable to VR0 Only
Applicable to VR1 Only
3
0.3
2.0
Open-Loop Gain
R
= 10kΩ to ground
-
-
96
80
-
dB
MHz
V/µs
V
L
-
Open-Loop Bandwidth
-
25
-
Slew Rate
Maximum Output Voltage
Output High Voltage
No Load
4.1
3.8
0.85
4.4
4.1
0.96
4.6
4.6
1.2
2mA Load
2mA Load
V
Output Low Voltage
V
PWM OUTPUT (PWM[6:1] and PWMS)
Sink Impedance
PWM = Low with 1mA Load
PWM = High, Forced to 3.7V
0.4mA Load
-
-
170
150
40
-
-
Ω
Ω
Source Impedance
PWM PSI2/3/Decay Mid-Level
38
44
%VCC
CURRENT SENSE AND OVERCURRENT PROTECTION
Sensed Current Tolerance of VR0
Sensed Current Tolerance of VR1
ISEN1-6 = 40µA;
CS Offset and Mirror Error Included, R
36.5
75.5
40.6
80.3
44
µA
µA
= 12.8kΩ
= 12.8kΩ
SET
ISEN1-6 = 80µA;
CS Offset and Mirror Error Included, R
85.5
SET
ISENS = 40µA; R
ISENS = 80µA; R
= 100Ω
= 100Ω
33
69.5
-
37
75
41
81
-
µA
µA
µA
ISENS
ISENS
VR0 Average Overcurrent Trip Level at Normal
CCM PWM Mode
CS Offset and Mirror Error Included, R
= 12.8kΩ
100
SET
VR0 Average Overcurrent Trip Level at PSI1/2/3 N = 6 Drop to 1-Phase
Mode
-
-
99
-
-
µA
µA
VR0 Average Overcurrent Trip Level at PSI1 Mode N = 6 Drop to 2-Phase
100
FN6964.0
January 3, 2011
9
INTERSIL [ Intersil ]
