ACPL-352J datasheet(10/26 Pages) BOARDCOM

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ACPL-352J

Data Sheet

Input Capacitance

CIN

—70—

f = 1 MHz, VF = 0V

UVLO Threshold, VDD2 – VS

VUVLO+

12.9

13.5

IF = 8 mA,

VOUTP – VE > 5V

b, c, d

VUVLO-

11.8

12.5

IF = 8 mA,

VOUTP – VE < 5V

b, c, e

UVLO Hysteresis, VDD2 – VS

VUVLO+ –

VUVLO–

0.5

—

OC Sensing Voltage Threshold

VOC

8.5

9.5

VDD2 – VS > VUVLO+

Blanking Capacitor Charging Current

ICHG

0.85

1.15

VOC = 2V

c, f

OC Low Voltage when Blanking

Capacitor Discharge

VDSCHG

—1.1

IDSCHG = 50 mA

c, f

Input Supply Current (VDD1)IDD1

—1.6

2.5

FAULT Logic Low Output Current

IFAULTL

49.2

—

VFAULT = 0.4V,

VDD1 = 5V

FAULT Logic High Output Current

IFAULTH

—

μA

VFAULT = VDD1 = 5V

UVLO Logic Low Output Current

IUVLOL

49.2

—

VUVLO = 0.4V,

VDD1 = 5V

UVLO Logic High Output Current

IUVLOH

—

μA

VUVLO = VDD1 = 5V

VOUTN GFAULT Sense Threshold Voltage

VGFAULTN

—VDD2 – 2

—

VOUTP GFAULT Sense Threshold Voltage

VGFAULTP

—VSS2 + 2

—

GFAULT Logic Low Output Current

IGFAULTL

49.2

—

VGFAULT = 0.4V,

VDD1 = 5V

GFAULT Logic High Output Current

IGFAULTH

—

μA

VGFAULT = VDD1 = 5V

Output is sourced at –4.5A /4.5A with a maximum pulse width = 10 μs.

15V is the recommended minimum operating positive supply voltage (VDD2 – VS) to ensure adequate margin in excess of the maximum VUVLO+ threshold of

13.5V. For High Level Output Voltage testing, VOUTP is measured with a 50-μs pulse load current. When driving capacitive loads, VOUTP approaches VDD2 as

IOUTP approaches zero units.

Once the system is out of UVLO (VDD2 – VS > VUVLO+), the OC detection feature of the ACPL-352J is the primary source of IGBT/MOSFET protection. UVLO needs

to be unlocked to ensure OC is functional. Once VDD2 exceeds VUVLO+ threshold, OC remains functional until VDD2 is below VUVLO– threshold. The OC

detection and UVLO features of the ACPL-352J work in conjunction to ensure constant IGBT/MOSFET protection.

This is the increasing (i.e., turn-on or positive going direction) of VDD2 – VS.

This is the decreasing (i.e., turn-off or negative going direction) of VDD2 – VS.

See the overcurrent fault detection blanking time section in the applications notes at the end of this data sheet for further details.

Parameter

Symbol

Min.

Typ.

Max.

Unit

Test Conditions

Fig.

Note

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