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ISL6441 Datasheet, PDF (6/18 Pages) Intersil Corporation – 1.4MHz Dual, 180 Out-of-Phase, Step-Down PWM and Single Linear Controller
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ISL6441
Electrical Specifications
Recommended operating conditions unless otherwise noted. Refer to “Block Diagram” on page 3 and “Typical
Application Schematic” on page 4. VIN = 5.6V to 24V, or VCC_5V = 5V ±10%, TA = -40°C to +85°C, Typical
values are at TA = +25°C. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise
specified. Temperature limits established by characterization and are not production tested. (Continued)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
SHUTDOWN1/SHUTDOWN2
HIGH Level (Converter Enabled)
Internal Pull-up (3µA)
2.0
-
-
V
LOW Level (Converter Disabled)
-
-
0.8
V
PWM CONVERTERS
Output Voltage
-
0.8
-
V
FB Pin Bias Current
-
-
150
nA
Maximum Duty Cycle
Minimum Duty Cycle
PWM1, COUT = 1000p, TA = +25°C
71
-
-
%
PWM2, COUT = 1000pF,
TA = +25°C
73
-
-
%
-
4
-
%
PWM CONTROLLER ERROR AMPLIFIERS
DC Gain (Note 7)
80
88
-
dB
Gain-Bandwidth Product (Note 7)
5.9
-
-
MHz
Slew Rate (Note 7)
-
2.0
-
V/µs
Maximum Output Voltage (Note 7)
0.9
-
-
V
Minimum Output Voltage (Note 7)
-
-
3.6
V
PWM CONTROLLER GATE DRIVERS (Note 8)
Sink/Source Current
-
400
-
mA
Upper Drive Pull-Up Resistance
VCC_5V = 4.5V
-
8
-
Ω
Upper Drive Pull-Down Resistance
VCC_5V = 4.5V
-
3.2
-
Ω
Lower Drive Pull-Up Resistance
VCC_5V = 4.5V
-
8
-
Ω
Lower Drive Pull-Down Resistance
VCC_5V = 4.5V
-
1.8
-
Ω
Rise Time
Fall Time
LINEAR CONTROLLER
COUT = 1000pF
COUT = 1000pF
-
18
-
ns
-
18
-
ns
Drive Sink Current
50
-
-
mA
FB3 Feedback Threshold
I = 21mA
-
0.8
-
V
Undervoltage Threshold
VFB
FB3 Input Leakage Current
-
75
-
%
-
45
150
nA
Amplifier Transconductance
POWER GOOD AND CONTROL FUNCTIONS
VFB = 0.8V, I = 21mA
-
2
-
A/V
PGOOD LOW Level Voltage
Pull-up = 100kΩ
-
0.1
0.5
V
PGOOD Leakage Current
-
-
±1.0
µA
PGOOD Upper Threshold, PWM 1 and 2
Fraction of set point
105
-
120
%
PGOOD Lower Threshold, PWM 1 and 2
Fraction of set point
80
-
95
%
PGOOD for Linear Controller
70
75
80
%
6
FN9197.3
May 26, 2009
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