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README

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ISL6146AFUZ

RENESAS · Monitors & Reset Circuits · MSOP-8

ISL6146AFUZ from RENESAS, in a MSOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 GATE output Gate drive output to the external N-channel MOSFET, generated by the internal charge pump, typically between VIN+7V at VIN=3.3V and VIN+12V at VIN=18V.
2 VIN power_in Sourcing-supply side sense pin at the OR-ing MOSFET source, with an operating range of 0V to 24V.
3 BIAS power_in Primary bias pin on the ISL6146A, which must be at least 3V and greater than VIN, with a range of 3.0 to 24V.
4 EN input Active high enable input for the ISL6146A that turns on the FET, internally pulled low to GND through 2MΩ, with a range of 0V to 24V.
5 GND power_in Chip ground reference.
6 FAULT output Open-drain, active-low fault output with internal on-chip filtering that is pulled to GND on a detected fault, with a range of 0 to VOUT.
7 ADJ input Sets the VIN-VOUT threshold of the high speed comparator; it connects directly to VOUT or through a 5kΩ to 100kΩ resistor to GND, with a range of 0.4 to VOUT.
8 VOUT power_in Load-side sense node connected to the OR-ing MOSFET drain and common to paralleled supplies, with a range of 0V to 24V.

Key specifications

Parameter Value
Manufacturer RENESAS
Package MSOP-8
Category Power Management ICs
Pins 8

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Bias Supply Voltage Range BIAS 3 20 V 6
OR'd Supply Voltage Range 1 V upper limit BIAS 6
Temperature Range (TA) TA -40 125 °C 6
BIAS, VIN, VOUT voltage BIAS, VIN, VOUT -0.3 24 V 6
GATE voltage GATE -0.3 40 V 6
EN, EN, UVLO, OVP voltage EN, EN, UVLO, OVP -0.3 24 V 6
ADJ voltage ADJ -0.3 V upper limit VOUT 6
FAULT voltage FAULT -0.3 V upper limit VOUT 6
Storage Temperature Range -65 150 °C 6
Maximum Junction Temperature (Plastic Package) 150 °C 6
ESD Human Body Model 2.5 kV Tested per JESD22-A114E 6
ESD Machine Model 250 V Tested per JESD22-A115-A 6
Latch-up 100 mA Tested per JESD-78B; Class 2, Level A 6
POR Rising BIAS threshold PORL2H 1.9 2.5 2.95 V BIAS Rising, GATE Rising 6
ISL6146A/B/D/E BIAS Current (enabled) IBIAS_en_18 3.6 5 mA BIAS, VIN = 18V, ADJ, VOUT = 16.98V, enabled 6
ISL6146A VIN Current (enabled) IVIN_en_18 25 40 µA BIAS, VIN = 18V, ADJ, VOUT = 16.98V, enabled 6
ISL6146A/B/D/E VOUT Current (enabled) IVOUT_en_18 14 20 µA BIAS, VIN = 18V, VOUT = 16.98V, enabled 6
ISL6146A/B/D/E BIAS Current (disabled) IBIAS_den_18 1.7 3 mA BIAS, VIN = 18V, ADJ, VOUT = 16.98V, disabled 6
ISL6146A VIN Current (disabled) IVIN_den_18 27 37 µA BIAS, VIN = 18V, ADJ, VOUT = 16.98V, disabled 6
ISL6146A/B/D/E VOUT Current (disabled) IVOUT_den_18 14 20 µA BIAS, VIN = 18V, VOUT = 16.98V, disabled 6
BIAS to GATE Delay tBIAS2GTE 150 210 µs BIAS > PORL2H to GATE Rising 6
Charge Pump Voltage (3V bias), above VIN VGH_3 5 7 10.5 V VIN, BIAS = 3V; VIN - VOUT > VFWD_VR; value is VIN + x V 6
Charge Pump Voltage (12V bias), above VIN VGH_12 9 10 17.5 V VIN, BIAS = 12V; VIN - VOUT > VFWD_VR; value is VIN + x V 6
Charge Pump Voltage (18V bias), above VIN VGH_18 9 10 18 V VIN, BIAS = 18V; VIN - VOUT > VFWD_VR; value is VIN + x V 6
Low Voltage Level VGL 0 0.1 V VIN - VOUT < 0V 6
Low Pull-Down Current IPDL 5 8.4 13 mA VIN = 12V, VOUT = 12.2V ADJ = 11V 6
High Pull-Down Current IPDH 3.5 6.5 A VIN falling from 12V to 10V in 2µs 6
Fast Turn-off Time ttoff 65 130 ns VIN = VBIAS = 12V, VGATE = 18V to 10V, CGATE = 57nF 6
Slow Turn-off Time ttoffs 58 80 µs VIN = VBIAS = 12V, VGATE = 18V to 10V, CGATE = 57nF 7
Turn-on Current ION 1 mA BIAS = 12V, VG = 0V 7
Turn-on Current ION 0.15 mA BIAS = 12V, VG = 20V 7
GATE to VIN Rising Fault Voltage VVG_FLTr 320 440 560 mV GATE > VIN, enabled, FLT output is high 7
GATE to VIN Falling Fault Voltage VVG_FLTf 140 220 300 mV GATE > VIN, enabled, FLT output is low 7
Reverse Voltage Detection Rising VOUT Threshold VRr 35 57 79 mV VOUT rising 7
Reverse Voltage Detection Falling VOUT Threshold VRf 10 30 51 mV VOUT falling 7
Amplifier Forward Voltage Regulation VFWD_VR 11 19 28 mV ISL6146 controls voltage across FET VDS to VFWD_VR during static forward operation at loads resulting in Id*rDS(ON) < VFWD_VR 7
HS Comparator Input Offset Voltage VOS_HS -14 0.7 14 mV 7
ADJ Adjust Threshold with 5k to GND VTH(HS5k) 0.57 0.8 1.1 V RADJ = 5kΩ to GND 7
ADJ Adjust Threshold with 100k to GND VTH(HS100k) 10 40 95 mV RADJ = 100kΩ to GND 7
VIN to VOUT Forward Fault Voltage VFWD_FLT 330 450 570 mV VIN > VOUT, GATE is fully on, FLT output is low 7
FAULT Sink Current IFLT_SINK 5 9 mA BIAS = 18V FAULT = 0.5V, VIN < VOUT, VGATE = VGL 7
FAULT Leakage Current IFLT_LEAK 0.04 10 µA FAULT = VFLT_H, VIN > VOUT, VGATE = VIN + VGQP 7
FAULT Low to High Delay tFLT_L2H 10 23 µs GATE = VGQP to FAULT output is high 7
FAULT High to Low Delay tFLT_H2L 1.7 3 µs GATE = VIN to FAULT output is low 7
ISL6146A/D EN Rising Vth VthRa 580 606 631 mV 7
EN/UVLO Rising to GATE Rising Delay tEN2GTER 10 12 µs 7
Thermal Resistance Junction-to-Ambient, MSOP JA 140 °C/W MSOP package, typical (Notes 4, 7) 6
Thermal Resistance Junction-to-Case, MSOP JC 41 °C/W MSOP package, typical (Notes 4, 7) 6
POR Hysteresis PORHYS 189 mV 6
Reverse Voltage Detection Response Time tRs 10 µs 7
VIN to VOUT Forward Fault Voltage Hysteresis VFWD_FLT_HYS 44 mV VIN > VOUT, GATE is fully on, FLT output is high 7
HS Comparator Response Time tHSpd 170 ns VOUT > VIN, 1ns transition, 5V differential 7
ISL6146A/D EN Vth Hysteresis VthR_hysa -90 mV 7

CAD (KiCad official)

  • Symbol: ISL6146AFUZ
  • Footprint: Package_SO:MSOP-8_3x3mm_P0.65mm
  • 3D model: MSOP-8 (KiCad packages3D, STEP)
  • 3D model files: isl6146afuz-etched.step / isl6146afuz-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); isl6146afuz.step / isl6146afuz.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: RENESAS datasheet (28 pp, sha256 5747d274e1b14869, retrieved 2026-10-28, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF