ISL6612A View Datasheet(PDF) - Intersil
Part Name
Description
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ISL6612A Datasheet PDF : 30 Pages
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ISL6334B, ISL6334C
Electrical Specifications Recommended Operating Conditions; VCC = 5V, Unless Otherwise Specified. Boldface limits apply over the
operating temperature ranges, -40°C to +85°C or 0°C to +70°C. (Continued)
PARAMETER
TEST CONDITIONS
MIN
MAX
(Note 6) TYP (Note 6) UNITS
PIN-ADJUSTABLE OFFSET
Voltage at OFS Pin
Offset resistor connected to ground
390 400 415
mV
Voltage below VCC, offset resistor connected to
1.574 1.60 1.635
V
VCC
OSCILLATORS
Accuracy of Switching Frequency Setting
Adjustment Range of Switching Frequency
RT = 100kΩ
(Note 8)
225 250 275
kHz
0.08
-
1.0
MHz
Soft-start Ramp Rate
Adjustment Range of Soft-Start Ramp Rate
RSS = 100kΩ (Notes 9, 10)
(Note 8)
-
1.563
0.625
-
-
6.25
mV/µs
mV/µs
PWM GENERATOR
Sawtooth Amplitude
-
1.5
-
V
ERROR AMPLIFIER
Open-Loop Gain
Open-Loop Bandwidth
RL = 10kΩ to ground
-
96
-
dB
-
80
-
MHz
Slew Rate
-
25
-
V/µs
Maximum Output Voltage
3.8
4.4
4.9
V
Output High Voltage @ 2mA
3.6
-
-
V
Output Low Voltage @ 2mA
-
-
1.6
V
REMOTE-SENSE AMPLIFIER
Bandwidth
-
20
-
MHz
Output High Current
VSEN - RGND = 2.5V (Note 8)
-500
-
500
µA
Output High Current
VSEN - RGND = 0.6 (Note 8)
-500
-
500
µA
PWM OUTPUT
Sink Impedance
PWM = Low with 1mA Load
100 220 300
Ω
Source Impedance
PWM = High, Forced to 3.7V
200 320 400
Ω
PSI# INPUT
High Signal Threshold
-
-
0.8
V
Low Signal Threshold
0.4
-
-
V
H_CPURST_N INPUT
PSI# Time Out
With Respect to H_CPURST_N Rising Edge
38
-
60
ms
High Signal Threshold
-
-
0.8
V
Low Signal Threshold (PSI# Signal Lockout)
0.4
-
-
V
CURRENT SENSE AND OVERCURRENT PROTECTION
Sensed Current Tolerance
ISEN1 = ISEN2 = ISEN3 = ISEN4 = 40µA;
36.5
-
42
µA
CS Offset and Mirror Error Included, RISENx = 200Ω
ISEN1 = ISEN2 = ISEN3 = ISEN4 = 80µA;
74
-
83
µA
CS Offset and Mirror Error Included, RISENx = 200Ω
Overcurrent Trip Level for Average Current at Normal CS Offset and Mirror Error Included, RISENx = 200Ω 96
105
117
µA
CCM PWM Mode
Overcurrent Trip Level for Average Current at PSI#
Mode
N = 4, Drop to 1-Phase
-
121
-
µA
9
FN6689.2
August 31, 2010
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