Rohm BM1Z002FJ Manual de usuario

AC Voltage Zero Cross Detection IC

BM1Z002FJ Evaluation Board

Notice

www.rohm.com HVB01E

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High Voltage Safety Precautions

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

ۍRead all safety precautions before use

Please note that this document covers only the BM1Z002FJ evaluation board

(BM1Z002FJ-EVK-002) and its functions. For additional information, please refer to the

datasheet.

To ensure safe operation, please carefully read all precautions before

handling the evaluation board

Depending on the configuration of the board and voltages used,

Potentially lethal voltages may be generated.

Therefore, please make sure to read and observe all safety precautions described in

the red box below.

Before Use

[1] Verify that the parts/components are not damaged or missing (i.e. due to the drops).

ᴾ

[2] Check that there are no conductive foreign objects on the board.

[3] Be careful when performing soldering on the module and/or evaluation board to ensure that solder

splash does not occur.

[4] Check that there is no condensation or water droplets on the circuit board.

During Use

[5] Be careful to not allow conductive objects to come into contact with the board.

[6] Brief accidental contact or even bringing your hand close to the board may result in

discharge and lead to severe injury or death.

Therefore, DO NOT touch the board with your bare hands or bring them too close to the board.

In addition, as mentioned above please exercise extreme caution when using conductive tools such as

tweezers and screwdrivers.

[7] If used under conditions beyond its rated voltage, it may cause defects such as short-circuit or,

depending on the circumstances, explosion or other permanent damages.

[8] Be sure to wear insulated gloves when handling is required during operation.

After Use

[9] The ROHM Evaluation Board contains the circuits which store the high voltage. Since it stores the

charges even after the connected power circuits are cut, please discharge the electricity after using

it, and please deal with it after confirming such electric discharge.ᴾ

[10] Protect against electric shocks by wearing insulated gloves when handling.

This evaluation board is intended for use only in research and development facilities and

should by handled only by qualified personnel familiar with all safety and operating

procedures.

We recommend carrying out operation in a safe environment that includes the use of high

voltage signage at all entrances, safety interlocks, and protective glasses.

1/10

No. 62UG087E Rev.001

2020.03

User’s Guide

AC/DC Converter

AC Voltage Zero Cross Detection IC

BM1Z002FJ Evaluation Board

BM1Z002FJ-EVK-002

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This evaluation board outputs a zero cross signal from 90 Vac to 264 Vacinput.

The evaluation board is mounted with BM1Z002FJ which outputs high precision zero cross timing of targeted AC voltage.

BM1Z002FJ will provide power less down to 1/10 of what conventional zero cross signal generator circuit consumed.

The evaluation board is also mounted with power supply for the IC.

Figure 1. BM1Z002FJ-EVK-002

Performance Specification

Not guarantee the characteristics is representative value. Ta = 25 °C

Parameter

Min

Typ

Max

Units

Conditions

Input Voltage Range

230

264

Input Frequency

Output Voltage (High Level)

4.75

5.00

5.25

Output Voltage (Low Level)

0.0

0.1

Delay Time

0.0

⒠

Operating Temperature Range

-10

+25

+65

°C

2/10

User’s Guide

BM1Z002FJ-EVK-002

No. 62UG087E Rev.001

2020.03

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Operation Procedure

1 Necessary Equipment

(1) AC power supply (90 Vac to 264 Vac, 10 W or more)

(2) Oscilloscope

2 Connect to Each Equipment

(1) Set the AC power supply to 90 Vac to 264 Vac power supply off.

(2) Connect the output pin (ACOUT pin, COMMON pin) to Oscilloscope (Keep isolated).

(3) Connect the pin of the power supply (CN1) to AC power supply output with pair of wires.

(4) Connect VCC pin, GND pin to DC power supply.Set it to output 5V and turn on the output

(5) AC power supply turn on.

(6) Confirm the output waveform synchronized with the AC voltage.



Figure 2. Diagram of How to Connect



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User’s Guide

BM1Z002FJ-EVK-002

No. 62UG087E Rev.001

2020.03

Application Circuit

This evaluation board outputs a zero cross signal.

Output a zero cross point of the AC voltage from ACOUT pins by monitoring the voltage between VH_AC1 pins and the VH_AC2

pins of IC1.

600V withstand monitor circuit is integrated at VH_AC1 pin and VH_AC2 pin to realize high reliabitity and low power consumption.

ACOUT pin output 5V as high level and 0V as low level.

Powersupplycircuitpart

Zerocrosssignalcircuitpart

Figure3.ApplicationCircuit

VACOUT

5 V / Div

VIN

200 V / Div

Figure4.Waveformoftheinputoutputvoltage

BM2P129T

DRAIN

VCC

VOUT-GND

BM1Z002FJ

100

220u

RFN1LAM6S

DA1

GND

ZNR1

2.2u

100n

100k

3.3k

100k

4.7u

220u

VCC

ACOUT

Vin

PC1

100

100n

100

VH_AC1

VH_AC2

ACOUT

DSET

GND

VCC

Power suppl

circuit par

129

DRAI

VCC

VOUT

LAM

220

Zero cross signal output

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User’s Guide

BM1Z002FJ-EVK-002

No. 62UG087E Rev.001

2020.03

BM1Z002FJ嵣*HQHUDO'HVFULSWLRQ

Features

This IC outputs the AC voltage zero cross timing detection

with high accuracy.

By eliminating the need for opto-coupler and external

components required in conventional applications, it is

possible to reduce the number of parts drastically and realize

compact and highly reliable power supply applications. In

addition, this IC can reduce standby power largely in

comparison with an existing opto-coupler control.

Pin Configuration

Figure 5. Pin Configuration

Key Specifications

VCC Input Power Supply Voltage Range:

-0.3 V to +29.0 V

VH_AC1 and VH_AC2 Pins Operation Voltage:

600 V (Max)

Circuit Current at Standby: 50 μA (Typ)

Circuit Current at Operation: 160 μA (Typ)

Operating Temperature Range: -40 °C to +105 °C

Package W (Typ) x D (Typ) x H (Max)

SOP-J7S 4.90 mm x 6.00 mm x 1.65 mm

Pitch (Typ): 1.27 mm

Figure 6. SOP-J7S Package

Pin Descriptions



No.

Pin Name

I/O

Function



$&287

2

AC voltage zero cross timing output pin



'6(7

,

AC voltage zero cross delay time setting pin



*1'



Ground pin



9&&

,

Power supply pin



1.C



Non connection (Do not connect to any pins.)



9+B$&

,

AC voltage input 2 pin



9+B$&

,

AC voltage input 1 pin

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User’s Guide

BM1Z002FJ-EVK-002

No. 62UG087E Rev.001

2020.03

1 Important Parameter



Zero cross delay time is adjustable by the external (R3) between DSET pins and GND pins.

Setting delay

time

OPEN

0 μۢ

330 kΩ

200 μۢ

68 kΩ

-200 μۢ

0 Ω

-480 μۢ

R3 setting with this evaluation board is OPEN. Thus, the delay time works in 0 μsec.

Parameter

Symbo

Min

Typ

Max

Units

Conditions

Input Voltage Range

VIN

230

264

Output Voltage

(High Level)

VOUT

4.75

5.00

5.25

Output Voltage

(Low Level)

VOUT

0.0

0.1

Delay Time

TDELAY

0.0

¡s

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User’s Guide

BM1Z002FJ-EVK-002

No. 62UG087E Rev.001

2020.03

Measurement Data

1 Input output waveform

R3OPEN



Figure 7. Input output waveformVIN = 90 Vac Figure 8. Input output waveformV

IN = 264 Vac

R3:330 kΩR3:8 kΩ



Figure 9. Input output waveform VIN = 90 Vac Figure 10. Input output waveform VIN = 90 Vac

Rگ:0 Ω



Figure 11. Input output waveform VIN = 90 Vac

VACOUT

100 V / Div

5 V / Div

100V / Div

5 V / Div

V / Div

V /

Div

VIN

ACOUT

VIN

VACOUT

V / Div

/ Div

VIN

/ Div

V / Div

VACOUT

VIN

7/10

User’s Guide

BM1Z002FJ-EVK-002

No. 62UG087E Rev.001

2020.03

$SSOLFDWLRQ&LUFXLW

㸦Condition㸧VIN = 90 Vacto 264 Vac

Figure 12. BM1Z002FJ-EVK-002 Application Circuit

BM2P129T

DRAIN

VCC

VOUT-GND

BM1Z002FJ

100

220u

RFN1LAM6S

DA1

GND

ZNR1

2.2u

100n

100k

3.3k

100k

4.7u

220u

VCC

ACOUT

Vin

PC1

100

100n

100

VH_AC1

VH_AC2

ACOUT

DSET

GND

VCC

P12

DRAIN

VCC

VOUT

LAM

Power supply circuit part

002

Zero cross signal circuit part

Zero cross signal output

8/10

User’s Guide

BM1Z002FJ-EVK-002

No. 62UG087E Rev.001

2020.03

Parts List



(Note 1) Materials may be changed without notifying.

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