Datasheet NCP4328 (ON Semiconductor) - 3

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NCP4328 PIN FUNCTION DESCRIPTION NCP4328A NCP4328B TSOP−5 TSOP−6 Pin Name Description
1 1 VCC Supply voltage pin 2 2 GND Ground 5 6 VSNS Output voltage sensing pin, connected to output voltage divider Current sensing input for output current regulation, connect it to shunt resistor 4 4 ISNS in ground branch. PWM LED driver output. Connected to LED cathode with current define by − 5 LED external serial resistance Output of current sinking OTA amplifiers driving feedback optocoupler’s LED. 3 3 FBC Connect here compensation networks as well.
ABSOLUTE MAXIMUM RATINGS Rating Symbol Value Unit
Input Voltage VCC −0.3 to 40.0 V FBC, LED Voltage VFBC, VLED −0.3 to VCC + 0.3 V VSNS, ISNS Voltage VSNS,VISNS −0.3 to 10.0 V LED Current ILED 10 mA Thermal Resistance − Junction−to−Air (Note 1) RqJA 315 °C/W Junction Temperature TJ −40 to 150 °C Storage Temperature TSTG −55 to 150 °C ESD Capability, Human Body Model (Note 2) ESDHBM 2000 V ESD Capability, Machine Model (Note 2) ESDMM 250 V Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected. 1. 50 mm2, 1.0 oz. Copper spreader. 2. This device series incorporates ESD protection and is tested by the following methods: ESD Human Body Model tested per JESD22−A114F ESD Machine Model tested per JESD22−A115C Latchup Current Maximum Rating tested per JEDEC standard: JESD78D.
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