ISL6539 Datasheet, PDF (4/20 Pages) Intersil Corporation – Wide Input Range Dual PWM Controller with DDR Option

ISL6539
Absolute Maximum Ratings
Bias Voltage, VCC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +6.5V
Input Voltage, VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +18.0V
PHASE, UGATE . . . . . . . . . . . . . . . . . .GND - 5V (Note 1) to +24.0V
BOOT, ISEN . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to +24.0V
BOOT with Respect to PHASE . . . . . . . . . . . . . . . . . . . . . . . . . +6.5V
All Other Pins . . . . . . . . . . . . . . . . . . . . . . GND -0.3V to V_CC + 0.3V
Thermal Information
Thermal Resistance (Typical, Note 2)
θ_JA (°C/W)
QSOP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . .
80
Maximum Junction Temperature (Plastic Package). . . . . . . . +150°C
Maximum Storage Temperature Range . . . . . . . . . .-65°C to +150°C
Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
Recommended Operating Conditions
Bias Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +5.0V ±5%
Input Voltage, VIN . . . . . . . . . . . . . . . . . . . . .+3.3V or 5.0V to +18.0V
Ambient Temperature Range, Commercial . . . . . . . . . 0°C to +70°C
Junction Temperature Range, Commercial . . . . . . . . 0°C to +125°C
Ambient Temperature Range, Industrial . . . . . . . . . .-40°C to +85°C
Junction Temperature Range, Industrial . . . . . . . . .-40°C to +125°C
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and
result in failures not covered by warranty.
NOTES:
1. 250ns transient. See “Confining the Negative Phase Node Voltage Swing with Schottky Diode” on page 17.
2. θ_JA is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
Electrical Specifications Recommended Operating Conditions, Unless Otherwise Noted.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP MAX UNITS
VCC SUPPLY
Bias Current
Shut-Down Current
VCC UVLO
Rising VCC Threshold
Falling VCC Threshold
VIN
Input Voltage Pin Current (Sink)
Shut-Down Current
OSCILLATOR
Oscillator Frequency
Ramp Amplitude, Peak-to-Peak
Ramp Amplitude, Peak-to-Peak
Ramp Offset
Ramp/VIN Gain
Ramp/VIN Gain
REFERENCE AND SOFT-START
Internal Reference Voltage
Reference Voltage Accuracy
Soft-Start Current During Start-Up
Soft-Start Complete Threshold
ICC LGATEx, UGATEx Open, VSENx forced above
-
1.8
3.0
mA
regulation point, DDR = 0, VIN >5V
ICCSN
-
-
1
µA
VCCU
VCCD
4.30 4.45 4.50
V
4.00 4.14 4.34
V
IVIN
IVINS
-
-
35
µA
-
-
1
µA
fOSC
VR1
VR2
VROFF
GRB1
GRB2
ISL6539C
ISL6539I
VIN pin voltage = 16V (Note 3)
VIN pin voltage = 5V (Note 3)
(Note 3)
VIN pin voltage > 4.2V (Note 3)
VIN pin voltage ≤ 4.1V (Note 3)
255
300
345
kHz
245
300
345
kHz
-
2
-
V
-
0.625
-
V
-
1
-
V
-
125
-
mV/V
-
250
-
mV/V
VREF
ISOFT
VST
(Note 3)
-
0.9
-
V
-1.0
-
+1.0
%
-
4.5
-
µA
-
1.5
-
V
4
FN9144.6
April 29, 2010