ISL6268 Datasheet, PDF (4/14 Pages) Intersil Corporation – High-Performance Notebook PWM Controller

ISL6268
Absolute Voltage Ratings
ISEN, VIN to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +28V
VCC, PGOOD to GND . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +7.0V
PVCC to PGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +7.0V
GND to PGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +0.3V
EN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to GND, VCC +3.3V
VO, FB, COMP, FSET . . . . . . . . . . . . . . . -0.3V to GND, VCC +0.3V
PHASE to GND (DC) . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +28V
(<100ns Pulse Width, 10µJ) . . . . . . . . . . . . . . . . . . . . . . . . . -5.0V
BOOT to GND, or PGND . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +33V
BOOT to PHASE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +7V
UG (DC) . . . . . . . . . . . . . . . . . . . . . . .-0.3V to PHASE, BOOT +0.3V
(<200ns Pulse Width, 20µJ) . . . . . . . . . . . . . . . . . . . . . . . . -4.0V
LG (DC) . . . . . . . . . . . . . . . . . . . . . . . .-0.3V to PGND, PVCC +0.3V
(<100ns Pulse Width, 4µJ) . . . . . . . . . . . . . . . . . . . . . . . . . . -2.0V
Thermal Information
Thermal Resistance (Typical, Note 1)
θ_JA (°C/W)
QSOP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . .
105
Junction Temperature Range. . . . . . . . . . . . . . . . . .-55°C to +150°C
Operating Temperature Range . . . . . . . . . . . . . . . .-10°C to +100°C
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Lead Temperature (Soldering, 10s) . . . . . . . . . . . . . . . . . . . . +300°C
Recommended Operating Conditions
Ambient Temperature Range. . . . . . . . . . . . . . . . . .-10°C to +100°C
Supply Voltage (VIN to GND) . . . . . . . . . . . . . . . . . . . . . . 7V to 25V
VCC to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5V ±5%
PVCC to PGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5V ±5%
CAUTION: Stress 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 section of this specification is not implied.
NOTES:
1. 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
PARAMETER
These specifications apply for T_A = -10°C to +100°C, unless otherwise stated.
All typical specifications T_A = +25°C, VCC = 5V, PVCC = 5V
SYMBOL
TEST CONDITIONS
MIN
TYP MAX UNIT
VIN
VIN Input Bias Current
I_VIN
EN = 5V, VIN = 7V
EN = 5V, VIN = 25V
-
6.5
10
µA
-
26
35
µA
VIN Shutdown Current
VCC and PVCC
I_{VIN_SHDN} EN = GND, VIN = 25V
-
0.1 1.0 µA
VCC Input Bias Current
VCC Shutdown Current
PVCC Shutdown Current
VCC POR THRESHOLD
I_VCC EN = 5V, FB = 0.65V, VIN = 7V to 25V
I_{VCC_SHDN} EN = GND, VCC = 5V
I_{PVCC_SHDN} EN = GND, PVCC = 5V
-
1.7 2.5 mA
-
0.1 1.0 µA
-
0.1 1.0 µA
Rising VCC POR Threshold Voltage
Falling VCC POR Threshold Voltage
REGULATION
V_{VCC_THR}
V_{VCC_THF}
4.35 4.45 4.55 V
4.10 4.20 4.30 V
Reference Voltage
Regulation Accuracy
V_REF
FB connected to COMP
-
0.6
-
V
-1
-
+1
%
PWM
Frequency Range
Frequency-Set Accuracy
VO Range
VO Input Leakage
F_SW
V_VO
I_VO
F_SW = 300kHz
VO = 0.60V
VO = 3.30V
200
-
600 kHz
-12
-
+12
%
0.60
-
3.30
V
-
1.3
-
µA
-
7.0
-
µA
ERROR AMPLIFIER
FB Input Bias Current
COMP Source Current
COMP Sink Current
COMP High Clamp Voltage
COMP Low Clamp Voltage
I_FB
FB = 0.60V
I_{COMP_SRC} FB = 0.40V, COMP = 3.20V
I_{COMP_SNK} FB = 0.80V, COMP = 0.30V
V_{COMP_HC} FB = 0.40V, Sink 50µA
V_{COMP_LC} FB = 0.80V, Source 50µA
-0.5
-
+0.5 µA
-
2.5
-
mA
-
0.3
-
mA
3.10 3.40 3.65 V
0.09 0.15 0.21 V
4
FN6348.0
August 22, 2006