ISL78268 Datasheet, PDF (10/33 Pages) Intersil Corporation – Integrated 2A sourcing

ISL78268
Absolute Maximum Ratings
VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 0.3V to +60V
PH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 0.3V to +60V
BOOT, UG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 0.3V to +65V
Upper Driver Supply Voltage, V_BOOT - V_PH . . . . . . . . . . . . . . - 0.3V to +6.5V
PVCC, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 0.3V to +6.5V
V_ISENxP - V_ISENxP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±0.6V
ISEN1P, ISEN1N, ISEN2P, ISEN2N . . . . . . . . . . . . . . . . . . . . . - 0.3V to +60V
All Other Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 0.3V to VCC + 0.3V
ESD Rating
Human Body Model (Tested per AEC-Q100-002) . . . . . . . . . . . . . . . . 2kV
Machine Model (Tested per AEC-Q100-003) . . . . . . . . . . . . . . . . . . . 200V
Charged Device Model (Tested per AEC-Q100-011). . . . . . . . . . . . . 750V
Latchup Rating (Tested per AEC-Q100-004) . . . . . . . . . . . . . . . . . . . 100mA
Thermal Information
Thermal Resistance
_JA (°C/W) _JC (°C/W)
24 Ld 4x4 QFN Package (Notes 4, 5) . . . . . . . . .
39
3.5
Maximum Junction Temperature (Plastic Package) . . . . . . . . . . . . . . +150°C
Maximum Storage Temperature Range. . . . . . . . . . . . . . . . . -65°C to +150°C
Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see TB493
Recommended Operating Conditions
VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5V to 55V
PH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0V to 55V
PVCC, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.75V to 5.5V
Upper Driver Supply Voltage, V_BOOT - V_PH . . . . . . . . . . . . . . . . . . 3.5V to 6V
ISEN1P, ISEN1N, ISEN2P, ISEN2N Common Mode Voltage . . . . 4V to 55V
ISEN1P to ISEN1N and ISEN2P to ISEN2N Differential Voltage . . . . ± 0.3V
Operational Ambient Temperature Range (Automotive). . . .-40°C to +125°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. For _JC, the “case temp” location is the center of the exposed metal pad on the package underside.
6. Unless otherwise noted, all voltages specified in this specification are refer to GND.
P
Electrical Specifications Refer to the Block Diagram (page 6) and Typical Application Schematics (page 7). Operating conditions unless
otherwise noted: V_IN = 12V, V_PVCC = 5.2V and V_VCC = 5.2V, EN = 5.0V, T_A = -40°C to +125°C. Typicals are at T_A = +25°C.
Boldface limits apply across the operating temperature range, -40°C to +125°C.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
MAX
(Note 7) TYP (Note 7) UNITS
SUPPLY INPUT
Input Voltage Range
Input Supply Current (ENABLED Mode) to VIN
Pin
VIN
For V_IN = 5V, the internal LDO dropout
5
(V_IN - PVCC) <0.25V
I_{Q_SW}
R_FSYNC = 40.2kΩ (f_SW = 300kHz), LG = OPEN,
UG = OPEN
55
V
5
7
mA
Input Supply Current (Shutdown Mode) to VIN
Pin
Input Leakage Current (Shutdown Mode) to
each of ISEN1P/ISEN1N/ISEN2P/ISEN2N Pins
INPUT OVERVOLTAGE PROTECTION
I_{Q_NON-SW} FSYNC = 5V, LG = OPEN, UG = OPEN
I_{Q_SD_VIN} EN = GND, V_IN = 12V
EN = GND, V_IN = 55V
I_{Q_SD_ISENxP/N} EN = GND, ISEN1P
(or ISEN1N/ISEN2P/ISEN2N) = 55V, V_IN = 55V
2.7
3.5 mA
0.15 0.5 µA
0.2
1
µA
-1
0
1
µA
V_IN Switching-Disabled Threshold
V_IN Overvoltage Recovery Threshold
V_IN Switching-Disabled Threshold Hysteresis
V_IN Overvoltage Hiccup Retry Delay
EN = 5V, V_IN rising
From the time fault is removed to initiation of
soft-start
56 57.5 59.5 V
52.5 54.5 57
V
3
V
500
ms
INTERNAL LINEAR REGULATOR
LDO Output Voltage (PVCC Pin)
LDO Dropout Voltage (PVCC pin)
LDO Current Foldback Limit (PVCC Pin)
LDO Output Short Current (PVCC pin)
V_PVCC
V_IN = 6V to 55V, C_PVCC = 4.7µF from PVCC to
PGND, I_PVCC = 10mA
5
5.2
5.4
V
V_DROPOUT V_IN = 4.9V, C_PVCC = 4.7µF from PVCC to PGND,
0.3
V
I_VCC = 80mA
I_{OC_LDO}
V_IN = 6V, C_PVCC = 4.7µF from PVCC to PGND
V_PVCC = 2.5V
150 230 280 mA
I_{OCFB_LDO} V_IN = 6V, C_PVCC = 4.7µF from PVCC to PGND
V_PVCC = 0V
100 150 220 mA
Submit Document Feedback ₁₀
FN8657.3
December 12, 2014