Rohm BM1Z002FJ Manual de usuario

AC Voltage Zero Cross Detection IC

BM1Z002FJ Evaluation Board

Notice

www.rohm.com HVB01E

＜High Voltage Safety Precautions＞

◇Read all safety precautions before use

Please note that this document covers only the BM1Z002FJ evaluation board

(BM1Z002FJ-EVK-001) 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).

[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.

[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.

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No. 60AP001E Rev.001

2017.4

No. 62UG076E Rev.002

2020.07

User’s Guide

Eval

Board

ACOUT

GND

AC/DC Converter

AC Voltage Zero Cross Detection IC

BM1Z002FJ Evaluation Board

BM1Z002FJ-EVK-001

General Description

This evaluation board outputs a signal indicating when there is a zero voltage crossing from an inputAC voltage from 90

VAC to 264 VAC. The BM1Z002FJ with the very few external components, will output a signal which is synchronous and

offset in time if configured to do so, indicating when the two phases of the input AC signals are crossing 0V relative to

one another. The advantage of the BM1Z002FJ is that it will provide the desired output signal while consuming less

than 1/10 of the current, using fewer components, and at higher precision and repeatability as compared to a

conventional zero cross detection circuit

Figure 1. BM1Z002FJ-EVK-001

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

μs

Operating Temperature Range

-10

+25

+65

°C

-1.5

-1

-0.5

0.5

1.5

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No. 62UG076E Rev.002

2020.07

Operating Procedure

1 Necessary Equipment

(1) Isolation Transformer to isolate main AC fromAC into the eval board

Or Isolated AC power source (90 Vac to 264 Vac, 10 W or more)

(2) Oscilloscope

2 Connecting Equipment

(1) With the ouput of the isolated AC power supply off, set the output to 90 VAC to 264 VAC .

(2) Connect the output pin (ACOUT-pin, COMMON pin as ground reference) to an Oscilloscope

(Keep the ground isolated from AC Inputs and probes).

(3) Connect the AC Input pins of the eval baord (CN1) to AC power supply output with pair of wires.

(4) Connect oscilloscope probes to each of the AC Input pins, and connect the grounds for each probe to the Common or

GND (Clarify which node per the notes about the schematic) pins on the eval board

(5) Set the Oscilloscope to display the AOUT probe so that a 5V rail to rail signal displays correctly and so that AC probe1 -

AC probe2 is displayed

(6) Turn on the AC power supply

(7) Confirm the output waveform ACOUT is synchronized with the AC input voltage.

Caution：To avoid the electrical shock , please keep AC Power supply being isolated.

Figure 2. Diagram of How to Connect

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User’s Guide

BM1Z002FJ-EVK-001

No. 62UG076E Rev.002

2020.07

Application Circuit

This evaluation board outputs a zero cross signal on ACOUT that is synchronous to the difference in the voltages between the

VH_AC1 and VH_AC2 signals on the BM1Z002FJ (IC1).

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.

The input pins VH_AC1 and VH_AC2 can tolerate up to 600V relative to one another. This results in a high reliabitity circuit using

very little power. The ACOUT output pin of the eval board has 5V as it's high output level and 0V as it's low level. This voltage level

is set by the output of the Power supply circuit. It can be modified to span a different voltage range. Please request guidance

from your local Rohm support person if a different operating voltage range is required.

Figure 3. Application Circuit

VACOUT

5 V / Div

200 V / Div

VIN

Figure 4. Wave form of the input output voltage

33k

IC1

VH_AC1

VH_AC2

ACOUT

DSET

GND

VCC

100

100n

BM2P129T

IC2

DRAIN

VCC

VOUT-GND

RRE02VSM6S

Vin

ACOUT

220u

4.7u

100k

100n

2.2u

ZNR1

DA1

RFN1LAM6S

220u

IC3

Gnd

Out

Vin

COMMON

100

BM1Z002FJ

BD50FA 1FP3

Zero cross signal circuit part

Power supply circuit part

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User’s Guide

BM1Z002FJ-EVK-001

No. 62UG076E Rev.002

2020.07

BM1Z002FJ・General Description

Features

This IC outputs a signal synchronous to the zero crossing of

an input AC signal with high accuracy.

Using this IC allows for a much simpler implimentation as

compared to conventional methods. The IC allows for a

dramatic reducion in the number of parts and improves

reliability, accuracy, and precisoion. In addition, this IC can

reduce standby power consumption as compared to a

conventional implemenation.

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

ACOUT

AC voltage zero cross timing output pin

DSET

AC voltage zero cross delay time setting pin

GND

Ground pin

VCC

Power supply pin

N.C

Non connection (Do not connect to any pins.)

VH_AC2

AC voltage input 2 pin

VH_AC1

AC voltage input 1 pin

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User’s Guide

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No. 62UG076E Rev.002

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BM1Z002FJ・General Description - continued

Important Parameter

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

Setting delay

time

OPEN

0 μs

330 kΩ

200 μs

68 kΩ

-200 μs

0 Ω

-480 μs

R3 is not populated on the Eval Board as shipped so the typical delay between the Zero Crossing on the AC input and ACOUT

pin is 0 μsec. Populating the R3 location with the values shown above will result in a shift in time between the detected Zero

Crossing and when the ACOUT signal changes state. Note that the ACOUT change can be advanced or occur before (negative

delay) the zero crossing.

Parameter

Symbo

Min

Typ

Max

Units

Conditions

Input Voltage Range

VIN

230

264

Output Voltage

(High Level)

VOUTH

4.75

5.00

5.25

Output Voltage

(Low Level)

VOUTL

0.0

0.1

Delay Time

TDELAY

0.0

µs

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User’s Guide

BM1Z002FJ-EVK-001

No. 62UG076E Rev.002

2020.07

Measurement Data

1 Input output waveform ( Measurement Diagram of is Figure 2. )

R3 :OPEN

Figure 7. Input output waveform VIN = 90 Vac Figure 8. Input output waveform VIN = 264 Vac

R3 :330 kΩ R3 :8 kΩ

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

R３:0 Ω

Figure 11. Input output waveform VIN = 90 Vac

VACOUT

100 V / Div

5 V / Div

100V / Div

5 V / Div

5V / Div

100 V / Div

VIN

VACOUT

VIN

VACOUT

5V / Div

100 V / Div

VIN

100 V / Div

5V / Div

VACOUT

VIN

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User’s Guide

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No. 62UG076E Rev.002

2020.07

Application Circuit

(Condition) VIN = 90 Vac to 264 Vac

Figure 12. BM1Z002FJ-EVK-001 Application Circuit

R3,R4,R5,R6,R8,Q1,PC1:Non-Mounted

PC1

ACOUT

VCC

GND

BD50FA 1FP3

BM1Z002FJ

100

COMMON

IC3

Gnd

Out

Vin

220u

RFN1LAM6S

DA1

ZNR1

2.2u

100n

100k

4.7u

220u

ACOUT

Vin

RRE02VSM6S

BM2P129T

IC2

DRAIN

VCC

VOUT-GND

100n

100

IC1

VH_AC1

VH_AC2

ACOUT

DSET

GND

VCC

33k

Zero cross signal circuit part

Power supply circuit part

Non Mounted

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User’s Guide

BM1Z002FJ-EVK-001

No. 62UG076E Rev.002

2020.07

Parts List

(Note 1) Materials may be changed without notifying.

Specifications Parts name Manufacture

Connector CN1 B02P-NV JST

C1 0.1 μF / 275 V 890 324 023 023 CS WURTH

C2 4.7 μF / 400 V 860 021 374 008 WURTH

C3 220 μF / 25 V 860 080 474 010 WURTH

C4 2.2 μF / 35 V UMK212BB7225KG-T Taiyo Yuden

C5 0.1 μF / 35 V HMK107B104MA-T Taiyo Yuden

C6 33k MCR03PZPJ333 Rohm

C7 0.1 μF / 35 V HMK107B7104MA-T Taiyo Yuden

C8 1 μF / 35 V UMK212BJ7105KG-T Taiyo Yuden

Diode-Bridge DA1 800V/1A D1UBA80-7062 Shindengen

D1 800V/0.1A 1N4007

D2 800V/0.1A 1N4007

D3 FRD 600V 0.8A RFN1LAM6S Rohm

D4 600V 0.2A RRE02VSM6S Rohm

Fuse F1 1A / 300V 36911000000 LITTELFUSE

IC1 BM1Z102FJ Rohm

IC2 BM2P129TF Rohm

IC3 BD50FA1FP3-ZTL Rohm

Coil L1 220uH 7447471221 WURTH

Transistor Q1 - Non-Mounted -

R1 100ΩMCR18EZPJ101 Rohm

R2 100ΩMCR18EZPJ101 Rohm

R3 - Non-Mounted

R4 - Non-Mounted

R5 - Non-Mounted

R6 - Non-Mounted

R7 100kΩMCR03EZPJ104 Rohm

R8 - Non-Mounted

Opto-coupler PC1 - Non-Mounted

Varistor ZNR1 - Non-Mounted

TP Black LC-2-G

TP RED LC-2-G

Item

Resistor

Capacitor

Diode

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