ISL8022 Ver la hoja de datos (PDF) - Renesas Electronics
Número de pieza
componentes Descripción
Lista de partido
ISL8022
Renesas Electronics
ISL8022 Datasheet PDF : 18 Pages
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ISL8022
Absolute Maximum Ratings (Reference to GND)
Supply Voltage (VIN) . . . . . . . . . . . . . . . . . . . . -0.3V to 6V (DC) or 7V (20ms)
EN1, EN2, PG, SYNC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-0.3V to VIN + 0.3V
LX1, LX2. . . . . . . . . . . . . . . . . . . . . . . -1.5V (100ns)/-0.3V (DC) to 6.5V (DC)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . or 7V (20ms)
FB1, FB2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 2.7V
ESD Rating
Human Body Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3kV
Machine Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250V
Charged Device Model (Tested per JESD22-C101E). . . . . . . . . . . . . . . 2k
Latch Up (Tested per JESD-78B; Class 2, Level A) . . . . . . . . . . . . . . 100mA
Thermal Information
Thermal Resistance (Typical)
JA (°C/W) JC (°C/W)
4x3 DFN Package (Notes 4, 5) . . . . . . . .
41
3
Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . . .-55°C to +150°C
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
VIN Supply Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.8V to 5.5V
Load Current Range Channel 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0A to 2A
Load Current Range Channel 2 . . . . . . . . . . . . . . . . . . . . . . . . . . 0A to 1.7A
Ambient Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . -40°C to +85°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:
4. 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.
5. JC, “case temperature” location is at the center of the exposed metal pad on the package underside.
Electrical Specifications Unless otherwise noted, all parameter limits are established over the recommended operating
conditions: TA = -40°C to +85°C, VIN = 2.8V to 5.5V, EN1 = EN2 = VIN, SYNC = 0V, L = 1.2µH, C1 = 2 x 10µF, C2 = C4 = 22µF, IOUT1 = 0A to 2A,
IOUT2 = 0A to 1.7A. (Typical values are at TA = +25°C, VIN = 3.6V). Boldface limits apply over the operating temperature range, -40°C to +85°C.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
MAX
(Note 6) TYP (Note 6)
UNITS
INPUT SUPPLY
VIN Undervoltage Lock-out Threshold
VUVLO
Rising
Falling
2.5
2.8
V
2.0
2.4
V
Quiescent Supply Current
IVIN SYNC = VIN, EN1 = EN2 = VIN, no switches
switching
40
55
µA
SYNC = GND, EN1 = EN2 = VIN, FS = 2.25MHz,
no load at the output
0.86
1
mA
ShutDown Supply Current
OUTPUT REGULATION
ISD
VIN = 5.5V, EN1 = EN2 = GND
6.5
12
µA
FB1, FB2 Regulation Voltage
FB1, FB2 Bias Current
Output Voltage Accuracy
VFB_
IFB_
VFB = 0.55V
SYNC = VIN, Io = 0A to 2A
SYNC = GND, Io = 0A to 2A
0.590 0.6 0.610
V
0.1
µA
±1.5
%
±1
%
Line Regulation
Soft-Start Ramp Time Cycle
VIN = VO + 0.5V to 5.5V (minimal 2.8V)
0.2
%/V
1.3
ms
OVERCURRENT PROTECTION
Dynamic Current limit ON-time
tOCON
17
Clock
pulses
Dynamic Current Limit OFF-time
Peak Overcurrent Limit
Peak SKIP Limit
tOCOFF
Ipk1
Ipk2
Iskip1
Iskip2
4
SS cycle
2.7
3.2
3.6
A
2.3
2.8
3.2
A
520
610
730
mA
520
610
730
mA
FN7650 Rev 3.00
March 14, 2013
Page 5 of 18
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