CAP200DG

CAPZero-2

Zero1 Loss Automatic X Capacitor Discharge IC

www.power.com

November 2018

This Product is Covered by Patents and/or Pending Patent Applications.

™

Component Table

Product3

BV

DSS

Total

X Capacitance

Total Series

Resistance2

(R1 + R2)

CAP200DG

1000 V

100 nF to 6 mF

7.5 MW to 142 kW

Table 1. Component Table.

Notes:

1. IEC 62301 clause 4.5 rounds standby power use below 5 mW to zero.

2. Values are nominal. RC time constant is <1 second.

3. Packages: D: SO-8.

Product Highlights

• One part to cover X capacitor values from 100 nF to 6 mF

• Blocks current through X capacitor discharge resistors when AC

voltage is connected

• Automatically discharges X capacitors through discharge resistors

when AC is disconnected

• Simplifies EMI filter design – larger X capacitor allows smaller

inductive components with no change in consumption

• Only two terminals – meets safety standards for use before or after

system input fuse

• >4 mm creepage on package and PCB

• Self supplied – no external bias required

• High common mode surge immunity – no external ground connection

• High differential surge withstand – 1000 V internal MOSFETs

• NEMKO and CB certification (issued by UL and NEMKO)

EcoSmart™– Energy Efficient

• <5 mW consumption at 230 VAC for all X capacitor values

Applications

• All AC-DC converters with X capacitors of 100 nF up to 6 mF

• Appliances requiring EuP Lot 6 compliance

• Adapters requiring ultra low no-load consumption

• All converters requiring very low standby power

• Lossless generation of zero crossing signal

Description

When AC voltage is applied, CAP200DG blocks current flow in the

X capacitor safety discharge resistors, reducing the power loss to less

than 5 mW, or essentially zero1 at 230 VAC. When AC voltage is

disconnected, CAP200DG automatically discharges the X capacitor by

connecting the series discharge resistors. This operation allows total

flexibility in the choice of the X capacitor to optimize differential mode

EMI filtering and reduce inductor costs, with no change in power

consumption.

Designing with CAP200DG is simply a matter of selecting the appropri-

ate external resistor values for the X capacitor value being used to

achieve the necessary time constant. The simplicity and ruggedness of

the two terminal CAP200DG IC makes it an ideal choice in systems

designed to meet EuP Lot 6 requirements.

Figure 1. Typical Application – Not a Simplified Circuit.

Figure 2. SO-8 D Package.

PI-7507-012015

D1

R1

AC

R2

X Capacitor

CAP200DG

D2

MOV

and Other

EMI Filter

Components