ISL6620 Datasheet, PDF (4/10 Pages) Intersil Corporation – VR11.1 Compatible Synchronous Rectified Buck MOSFET Drivers

ISL6620, ISL6620A
Absolute Maximum Ratings
Supply Voltage (VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 7V
Input Voltage (V_EN, V_PWM) . . . . . . . . . . . . . . . -0.3V to VCC + 0.3V
BOOT Voltage (V_BOOT-GND). . . -0.3V to 25V (DC) or 36V (<200ns)
BOOT To PHASE Voltage (V_BOOT-PHASE) . . . . . . -0.3V to 7V (DC)
-0.3V to 9V (<10ns)
PHASE Voltage . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to 15V (DC)
GND -8V (<20ns Pulse Width, 10µJ) to 30V (<100ns)
UGATE Voltage . . . . . . . . . . . . . . . . V_PHASE - 0.3V (DC) to V_BOOT
V_PHASE - 5V (<20ns Pulse Width, 10µJ) to V_BOOT
LGATE Voltage . . . . . . . . . . . . . . . GND - 0.3V (DC) to VCC + 0.3V
GND - 2.5V (<20ns Pulse Width, 5µJ) to VCC + 0.3V
Ambient Temperature Range . . . . . . . . . . . . . . . . . .-40°C to +125°C
Thermal Information
Thermal Resistance
θ_JA (°C/W) θ_JC (°C/W)
SOIC Package (Note 1) . . . . . . . . . . . . 100
N/A
DFN Package (Notes 2, 3) . . . . . . . . . .
48
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
Recommended Operating Conditions
Ambient Temperature Range
ISL6620IBZ, ISL6620IRZ, ISL6620AIBZ, ISL6620AIRZ
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +85°C
ISL6620CBZ, ISL6620CRZ, ISL6620ACBZ, ISL6620ACRZ
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to +70°C
Maximum Operating Junction Temperature. . . . . . . . . . . . . +125°C
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5V ±10%
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.
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; 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 Current
No Load Switching Supply Current
IVCC
f_PWM = 300kHz, V_VCC = 5V
1.27
mA
Standby Supply Current
IVCC
PWM 0V to 2.5V transition, EN = High
1.85
mA
PWM 0V to 2.5V transition, EN = Low
1.15
mA
POWER-ON RESET AND ENABLE
VCC Rising POR Threshold
3.2
3.8
4.4
V
VCC Falling POR Threshold
3.0
3.4
4.0
V
VCC POR Hysteresis
130
300
530
mV
EN High Threshold
1.40 1.65
1.90
V
EN Low Threshold
1.20 1.35
1.55
V
PWM INPUT (See TIMING DIAGRAM" on page 6)
Input Current
IPWM
VPWM = 5V
500
µA
VPWM = 0V
-430
µA
PWM Rising Threshold (Note 4)
VCC = 5V
3.4
V
PWM Falling Threshold (Note 4)
VCC = 5V
1.6
V
Three-State Lower Gate Falling Threshold
VCC = 5V
1.6
V
Three-State Lower Gate Rising Threshold
VCC = 5V
1.1
V
Three-State Upper Gate Rising Threshold
VCC = 5V
3.2
V
Three-state Upper Gate Falling Threshold
VCC = 5V
2.8
V
UGATE Rise Time (Note 4)
t_RU
VCC = 5V, 3nF load, 10% to 90%
8
ns
4
FN6494.0
April 25, 2008