Data Sheet Rev. B, September 2019 | Subject to change without notice

3 of 15

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ACT4530M

40 V/3.0 A CV/CC Buck Converter Featuring QC2.0, USB Auto-Detect and USB-PD

PIN DESCRIPTIONS

PIN

NAME

DESCRIPTION

1

CSP

Voltage Feedback Input. Connect to node of the inductor and output capacitor. CSP and CSN Kevin

sense is recommended.

2

CSN

Negative input terminal of output current sense. Connect to the negative terminal of current

sense resistor.

3

PDC

USB-PD Control Pin. When PDC is floating, VOUT = 5.1 V. When PDC is pulled low, VOUT = 9.1 V. When

PDC is pulled high, the IC ignores the PDC pin and the output voltage does not change from the

previous setting.

4

DP

Data Line Positive Input. Connected to D+ of attached portable device data line. This pin passes 8 kV

HBM ESD.

5

DM

Data Line Negative Input. Connected to D- of attached portable device data line. This pin passes 8 kV

HBM ESD.

6

IN

Power Supply Input. Bypass this pin with a 10 μF ceramic capacitor to GND, placed as close to the IC

as possible.

7

SW

Power Switching Output to External Inductor.

8

HSB

High Side Bias Pin. This provides power to the internal high-side MOSFET gate driver. Connect a

22 nF capacitor from HSB pin to SW pin.

9

GND

Ground and Heat Dissipation Pad. Connect this exposed pad to large ground copper area with copper

and vias.

ABSOLUTE MAXIMUM RATINGS

PARAMETER

VALUE

UNIT

IN to GND

-0.3 to 40

V

SW to GND

-1 to VIN +1

V

HSB to GND

VSW - 0.3 to VSW + 7

V

CSP, CSN to GND

-0.3 to +15

V

PDC to GND

-0.3 to +6

V

All other pins to GND

-0.3 to +6

V

Junction to Ambient Thermal Resistance

46

°C/W

Operating Junction Temperature

-40 to 150

°C

Storage Junction Temperature

-55 to 150

°C

Lead Temperature (Soldering 10 sec.)

300

°C

: Do not exceed these limits to prevent damage to the device. Exposure to absolute maximum rating conditions for long periods may affect

device reliability.