ISL6227
Absolute Maximum Ratings
Bias Voltage, V
CC
. . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to +6.5V
Input Voltage, V
IN
. . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to +25.0V
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
Thermal Information
Thermal Resistance (Typical)
θ
JA
(°C/W)
θ
JC
(°C/W)
80
N/A
SSOP Package (Note 2)
. . . . . . . . . . . . . .
QFN Package(Notes 3, 4)
. . . . . . . . . . . .
36
6
Maximum Junction Temperature (Plastic Package). . . . . . . . +150°C
Maximum Storage Temperature Range . . . . . . . . . .-65°C to +150°C
Recommended Operating Conditions
Bias Voltage, V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . +5.0V
±
5%
Input Voltage, V
IN
. . . . . . . . . . . . . . . . . . . . . . . . . . .+5.0V to +24.0V
Ambient Temperature Range . . . . . . . . . . . . . . . . . -10°C to +100°C
Junction Temperature Range . . . . . . . . . . . . . . . . . -10°C to +125°C
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
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.
Electrical Specifications
PARAMETER
VCC SUPPLY
Bias Current
Shut-down Current
VCC UVLO
Rising VCC Threshold
Falling VCC Threshold
V
IN
Input Voltage Pin Current (Sink)
Shut-Down Current
OSCILLATOR
PWM1 Oscillator Frequency
Recommended Operating Conditions, Unless Otherwise Noted.
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNITS
I
CC
I
CCSN
LGATEx, UGATEx Open, VSENx forced above
regulation point, V
IN
> 5V
-
-
1.8
-
3.0
1
mA
μA
V
CCU
V
CCD
4.3
4
4.45
4.14
4.5
4.34
V
V
I
VIN
I
VINS
-
-
-
-
35
1
μA
μA
F
c
Commercial, ISL6227C
Industrial, ISL6227I
255
240
-
-
-
-
-
300
300
2
0.625
1
125
250
345
345
-
-
-
-
-
kHz
kHz
V
V
V
mV/V
mV/V
Ramp Amplitude, pk-pk
Ramp Amplitude, pk-pk
Ramp Offset
Ramp/V
IN
Gain
Ramp/V
IN
Gain
REFERENCE AND SOFT-START
Internal Reference Voltage
Reference Voltage Accuracy
Soft-Start Current During Start-Up
Soft-Start Complete Threshold
V
R1
V
R2
V
ROFF
G
RB1
G
RB2
V
IN
= 16V, by design
V
IN
= 5V, by design
By design
V
IN
≥
4.2V, by design
V
IN
≤
4.1V by design
V
REF
-
-1.0
0.9
-
-4.5
1.5
-
+1.0
-
-
V
%
μA
V
I
SOFT
V
ST
By design
-
-
3
FN9094.4
December 21, 2006
INTERSIL [ INTERSIL CORPORATION ]
