ISL6227 Datasheet, PDF (3/27 Pages) Intersil Corporation – Dual Mobile-Friendly PWM Controller with DDR Option

ISL6227
Absolute Maximum Ratings
Bias Voltage, V_CC . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to +6.5V
Input Voltage, V_IN . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to +28.0V
PHASE, UGATE . . . . . . . . . . . . . . . . . . . GND -5V (Note 1) to 33.0V
BOOT, ISEN . . . . . . . . . . . . . . . . . . . . . . . . . . GND -0.3V to +33.0V
BOOT with Respect to PHASE . . . . . . . . . . . . . . . . . . . . . . . . + 6.5V
All Other Pins . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to V_CC + 0.3V
Recommended Operating Conditions
Bias Voltage, V_CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +5.0V ±5%
Input Voltage, V_IN . . . . . . . . . . . . . . . . . . . . . . . . . . .+5.0V to +28.0V
Ambient Temperature Range . . . . . . . . . . . . . . . . . -10°C to +100°C
Junction Temperature Range . . . . . . . . . . . . . . . . . -10°C to +125°C
Thermal Information
Thermal Resistance (Typical)
θ_JA (°C/W) θ_JC (°C/W)
QSOP Package (Note 2) _{. . . . . . . . . . . . .}
80
N/A
QFN Package (Notes 3, 4)_{. . . . . . . . . . . .}
36
6
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
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 in Application Information Section
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.
3. θ_JA is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See Tech
Brief TB379.
4. For θ_JC, the “case temp” location is the center of the exposed metal pad on the package underside.
5. Limits established by characterization and are not production tested.
Electrical Specifications
Recommended Operating Conditions, Unless Otherwise Noted. 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
SYMBOL
TEST CONDITIONS
MIN
TYP MAX UNITS
VCC SUPPLY
Bias Current
Shut-down Current
VCC UVLO
I_CC
LGATEx, UGATEx Open, VSENx forced above
-
1.8
3.0
mA
regulation point, V_IN > 5V
I_CCSN
-
-
1
µA
Rising VCC Threshold
Falling VCC Threshold
V_IN
Input Voltage Pin Current (Sink)
Shut-Down Current
OSCILLATOR
V_CCU
V_CCD
I_VIN
I_VINS
4.3
4.45
4.5
V
4
4.14 4.34
V
-
-
35
µA
-
-
1
µA
PWM1 Oscillator Frequency
f_c
Commercial, ISL6227C
Industrial, ISL6227I
255
300
345
kHz
240
300
345
kHz
Ramp Amplitude, pk-pk
Ramp Amplitude, pk-pk
Ramp Offset
Ramp/V_IN Gain
Ramp/V_IN Gain
REFERENCE AND SOFT-START
V_R1
V_R2
V_ROFF
G_RB1
G_RB2
V_IN = 16V (Note 5)
V_IN = 5V (Note 5)
(Note 5)
V_IN ≥ 4.2V (Note 5)
V_IN ≤ 4.1V (Note 5)
-
2
-
V
-
0.625
-
V
-
1
-
V
-
125
-
mV/V
-
250
-
mV/V
Internal Reference Voltage
Reference Voltage Accuracy
V_REF
-
0.9
-
V
-1.0
-
+1.0
%
3
FN9094.7
May 4, 2009