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ISL6755 Datasheet, PDF (4/17 Pages) Intersil Corporation – ZVS Full-Bridge PWM Controller with Average Current Limit
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ISL6755
Absolute Maximum Ratings
Supply Voltage, VDD . . . . . . . . . . . . . . . . . . . GND - 0.3V to +22.0V
OUTxxx . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to VDD
Signal Pins . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to VREF + 0.3V
VREF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to 6.0V
Peak GATE Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.1A
Latchup (Note 3) . . . . . . . . . . . . . . . . . . . Class II, Level B @ +85°C
Thermal Information
Thermal Resistance (Typical)
θJA (°C/W)
20 Lead QSOP (Note 1). . . . . . . . . . . . . . . . . . . . . .
88
Maximum Junction Temperature . . . . . . . . . . . . . . .-55°C to +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
Operating Conditions
Temperature Range
ISL6755AAxx . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +105°C
Supply Voltage Range (Typical). . . . . . . . . . . . . . . 9VDC to 16VDC
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. θJA is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
2. All voltages are with respect to GND.
3. Jedec Class II pulse conditions and failure criterion used. Level B exceptions are using a pulse limited to 50mA.
Electrical Specifications
Recommended operating conditions unless otherwise noted. Refer to Block Diagram and Typical Application
schematic. 9V < VDD < 20V, RTD = 10.0kΩ, CT = 470pF, TA = -40°C to +105°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.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
SUPPLY VOLTAGE
Supply Voltage
-
-
20
-
Start-Up Current, IDD
Operating Current, IDD
UVLO START Threshold
VDD = 5.0V
RLOAD, COUT = 0
-
175
400
µA
-
11.0
15.5
mA
8.00
8.75
9.00
V
UVLO STOP Threshold
6.50
7.00
7.50
V
Hysteresis
-
1.75
-
V
REFERENCE VOLTAGE
Overall Accuracy
Long Term Stability
Operational Current (source)
IVREF = 0mA to -10mA
4.850
5.000
5.150
V
TA = +125°C, 1000 hours (Note 4)
-
3
-
mV
-10
-
-
mA
Operational Current (sink)
5
-
-
mA
Current Limit
CURRENT SENSE
VREF = 4.85V
-15
-
-100
mA
Current Limit Threshold
CS to OUT Delay
VERR = VREF
Excl. LEB
0.97
1.00
1.03
V
-
35
-
ns
Leading Edge Blanking (LEB) Duration
-
70
-
ns
CS to OUT Delay + LEB
CS Sink Current Device Impedance
Input Bias Current
IOUT Sample and Hold Buffer Amplifier Gain
IOUT Sample and Hold VOH
IOUT Sample and Hold VOL
TA = +25°C
VCS = 1.1V
VCS = 0.3V
TA = +25°C
VCS = max, ILOAD = -300µA
VCS = 0.00V, ILOAD = 10µA
-
-
150
ns
-
-
20
Ω
-1.0
-
1.0
µA
3.85
4.00
4.15
V/V
3.9
-
-
V
-
-
0.3
V
4
FN6442.1
September 29, 2008
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