ISL85403 View Datasheet(PDF) - Renesas Electronics
Part Name
Description
Manufacturer
ISL85403
Renesas Electronics
ISL85403 Datasheet PDF : 24 Pages
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ISL85403
Absolute Maximum Ratings
VIN, PHASE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to +44V
VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to +6.0V
AUXVCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to +22V
Absolute Boot Voltage, VBOOT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +50.0V
Upper Driver Supply Voltage, VBOOT - VPHASE. . . . . . . . . . . . . . . . . . . +6.0V
All Other Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to VCC + 0.3V
ESD Rating
Human Body Model (Tested per JESD22-A114F) . . . . . . . . . . . . . . .2.5kV
Machine Model (Tested per JESD22-A115C) . . . . . . . . . . . . . . . . . . 250V
Charged Device Model (Tested per JESD22-C101E). . . . . . . . . . . . . . 1kV
Latch-up Rating (Tested per JESD78B; Class II, Level A) . . . . . . . . . 100mA
Thermal Information
Thermal Resistance
JA (°C/W) JC (°C/W)
QFN 4x4 Package (Notes 4, 5). . . . . . . . . . . . . . .
40
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
Supply Voltage on VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3V to 40V
AUXVCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to +20V
Ambient Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +105°C
Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . .-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.
Electrical Specifications Refer to “Block Diagram” on page 5 and “Typical Application Schematics” on page 6. Operating Conditions
Unless Otherwise Noted: VIN = 12V, or VCC = 4.5V ±10%, TA = -40°C to +105°C. Typicals are at TA = +25°C. Boldface limits apply across the operating
temperature range, -40°C to +105°C.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
MAX
(Note 6) TYP (Note 6) UNITS
VIN PIN SUPPLY
VIN Pin Voltage Range
VIN Pin
3.05
40
V
VIN Pin connected to VCC
3.05
5.5
V
Operating Supply Current
IQ
MODE = VCC/FLOATING (PFM), no load at the
output
300
µA
MODE = GND (forced PWM), VIN = 12V,
IC operating, not including driving current
1.3
mA
Shutdown Supply Current
INTERNAL MAIN LINEAR REGULATOR
IIN_SD
EN connected to GND, VIN = 12V
2.8
4.5 µA
MAIN LDO VCC Voltage
MAIN LDO Dropout Voltage
VCC Current Limit of MAIN LDO
INTERNAL AUXILIARY LINEAR REGULATOR
VCC
VIN > 5V
VDROPOUT_MAIN VIN = 4.2V, IVCC = 35mA
VIN = 3V, IVCC = 25mA
4.2
4.5
4.8
V
0.3 0.52 V
0.25 0.42 V
60
mA
AUXVCC Input Voltage Range
AUX LDO VCC Voltage
LDO Dropout Voltage
Current Limit of AUX LDO
VAUXVCC
VCC
VAUXVCC > 5V
VDROPOUT_AUX VAUXVCC = 4.2V, IVCC = 35mA
VAUXVCC = 3V, IVCC = 25mA
3
20
V
4.2
4.5
4.8
V
0.3 0.52 V
0.25 0.42 V
60
mA
AUX LDO Switchover Rising Threshold
VAUXVCC_RISE AUXVCC voltage rise; Switch to auxiliary LDO
2.97 3.1
3.2
V
AUX LDO Switchover Falling Threshold Voltage VAUXVCC_FALL AUXVCC voltage fall; Switch back to main BIAS 2.73 2.87 2.97 V
LDO
AUX LDO Switchover Hysteresis
VAUXVCC_HYS AUXVCC switchover hysteresis
0.2
V
FN8631 Rev 1.00
March 13, 2015
Page 7 of 24
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