ISL6520ACB-T Datasheet, PDF (4/12 Pages) Intersil Corporation – Single Synchronous Buck Pulse-Width Modulation (PWM) Controller

ISL6520A
Absolute Maximum Ratings
Supply Voltage, V_CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +6.0V
Absolute Boot Voltage, V_BOOT . . . . . . . . . . . . . . . . . . . . . . . +15.0V
Upper Driver Supply Voltage, V_BOOT - V_PHASE . . . . . . . . 7.0V (DC)
. . . . . . . . . . . . . . . . . . . . . . . . . . 8.0V (<10ns Pulse Width, 10μJ)
Input, Output or I/O Voltage . . . . . . . . . . . GND -0.3V to VCC +0.3V
ESD Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Class 2
Operating Conditions
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . +5V ±10%
Ambient Temperature Range - ISL6520AC . . . . . . . . . 0°C to +70°C
Ambient Temperature Range - ISL6520AI . . . . . . . . .-40°C to +85°C
Junction Temperature Range. . . . . . . . . . . . . . . . . .-40°C to +125°C
Thermal Information
Thermal Resistance
θ_JA (°C/W) θ_JC (°C/W)
SOIC Package (Note 1) . . . . . . . . . . . . . . 95
N/A
QFN Package (Notes 2, 3). . . . . . . . . . . . . 45
7
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. 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.
2. 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.
3. For θ_JC, the “case temp” location is the center of the exposed metal pad on the package underside.
Electrical Specifications Recommended Operating Conditions, Unless Otherwise Noted.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
MAX
(Note 4) TYP (Note 4) UNITS
VCC SUPPLY CURRENT
Nominal Supply
POWER-ON RESET
I_VCC
2.6
3.2
3.8
mA
Rising VCC POR Threshold
POR
4.19
4.30
4.50
V
VCC POR Threshold Hysteresis
-
0.25
-
V
OSCILLATOR
Frequency
f_OSC
ISL6520AC, VCC = 5V
ISL6520AI, VCC = 5V
250
300
340
kHz
230
300
340
kHz
Ramp Amplitude
REFERENCE
DV_OSC
-
1.5
-
V_P-P
Reference Voltage Tolerance
ISL6520AC
-1.5
-
+1.5
%
ISL6520AI
-2.5
-
+2.5
%
Nominal Reference Voltage
ERROR AMPLIFIER
V_REF
-
0.800
-
V
DC Gain
Gain-Bandwidth Product
Slew Rate
Limits established by characterization and
-
88
-
dB
GBWP ^{are not production tested}
-
15
-
MHz
SR
-
8
-
V/µs
GATE DRIVERS
Upper Gate Source Current
Upper Gate Sink Current
Lower Gate Source Current
Lower Gate Sink Current
PROTECTION / DISABLE
I_UGATE-SRC V_BOOT - V_PHASE = 5V, V_UGATE = 4V
I_UGATE-SNK
I_LGATE-SRC V_VCC = 5V, V_LGATE = 4V
I_LGATE-SNK
-
-1
-
A
-
1
-
A
-
-1
-
A
-
2
-
A
OCSET Current Source
I_OCSET
ISL6520AC
ISL6520AI
17
20
22
µA
14
20
24
µA
Disable Threshold
NOTE:
V_DISABLE
-
0.8
-
V
4. 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.
4
FN9016.6
December 10, 2009