BD63801EFV-E2 datasheet, PDF - EEWORLD Datasheet

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BD63801EFV-E2: DescriptionMotor / Motion / Ignition Controllers & Drivers Stepping Motor Driver 36V; CategoryOther integrated circuit (IC) The signal circuit; File Size390KB，11 Pages; ManufacturerROHM Semiconductor; Websitehttps://www.rohm.com/; Environmental Compliance

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Motor / Motion / Ignition Controllers & Drivers Stepping Motor Driver 36V

BD63801EFV-E2 Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
Maker	ROHM Semiconductor
Parts packaging code	TSSOP
package instruction	HVSSOP, TSSOP24,.3
Contacts	24
Reach Compliance Code	compliant
ECCN code	EAR99
Factory Lead Time	9 weeks
Is Samacsys	N
Analog Integrated Circuits - Other Types	STEPPER MOTOR CONTROLLER
JESD-30 code	R-PDSO-G24
length	7.8 mm
Number of functions	1
Number of terminals	24
Maximum operating temperature	85 °C
Minimum operating temperature	-25 °C
Maximum output current	0.8 A
Package body material	PLASTIC/EPOXY
encapsulated code	HVSSOP
Encapsulate equivalent code	TSSOP24,.3
Package shape	RECTANGULAR
Package form	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	NOT SPECIFIED
power supply	24 V
Certification status	Not Qualified
Maximum seat height	1 mm
Maximum supply current (Isup)	7 mA
Maximum supply voltage (Vsup)	28 V
Minimum supply voltage (Vsup)	19 V
Nominal supply voltage (Vsup)	24 V
surface mount	YES
technology	BIPOLAR
Temperature level	OTHER
Terminal form	GULL WING
Terminal pitch	0.65 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	NOT SPECIFIED
width	5.6 mm
Base Number Matches	1

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Stepping Motor Driver Series

Standard 36V

Stepping Motor Drivers

BD63801EFV

No.12009EAT07

●Description

BD63801EFV is rated 24V system maximum input voltage / 0.8A maximum output current and employs a constant-current

PWM control scheme for low power consumption.

Serial (CLK-IN) drive mode allows for simple interfacing and operation, while allowing for full and half excitation modes. The

single-power supply configuration allows for easy design and layout in the application.

●Feature

1) Power supply: one system drive (19V½28V)

2) Low ON resistance DMOS output

3) Serial (CLK-IN) drive mode

4) PWM constant current control (self oscillation)

5) Built-in spike noise cancel function (external noise filter is unnecessary)

6) FULL STEP applicable to HALF STEP

7) Normal / Reverse rotation switching function

8) Power save function*

9) Built-in logic input pull-down resistor

10) Power-on reset function

11) Thermal shutdown circuit (TSD)

12) Over current protection circuit (OCP)

13) Under voltage lock out circuit (UVLO)

14) Over voltage lock out circuit (OVLO)

15) Malfunction prevention at the time of no applied power supply (Ghost Supply Prevention)

16) Electrostatic discharge: 4kV (HBM specification)

17) Microminiature, ultra-slim and high heat-radiation (exposed metal type) HTSSOP package

18) Function pin compatible with constant current 2ch 36V Simple Stepping Motor Driver Series

●Application

PPC, Laser beam printer, Scanner, Photo printer, FAX, Ink jet printer, Mini printer, Sewing machine, Toy, and Robot etc.

www.rohm.com

1/8

2012.02 - Rev.A

BD63801EFV

Technical Note

●Points

to notice for terminal description

○CLK(pin13)／Clock

input terminal for advancing the electrical angle

CLK is reflected at rising edge. The Electrical angle advances by one for each CLK input.

Motor’s misstep will occur if noise is picked up at the CLK terminal, so please design the pattern in such a way that

there is no noise plunging.

○MODE(pin11)／Motor

excitation mode setting terminal

Set the motor excitation mode.

MODE

Excitation mode

FULL STEP

HALF STEP A

○FR(pin24)／Motor

rotating direction setting terminal

Set the motor’s rotating direction. Change in setting is reflected at the CLK’s rising edge immediately after the change

in setting

CW_CCW

Rotating direction

Clockwise (CH2’s current is outputted with a phase lag of 90°in regard to CH1’s current)

Counter Clockwise(CH2’s current is outputted with a phase lead of 90°in regard to CH1’s current)

○ENABLE(pin2)／Output

enable terminal

Turn off forcibly all the output transistors (motor output is open).

At the time of ENABLE=L, electrical angle or operating mode is maintained even if CLK is inputted.

Please be careful because the electrical angle at the time of ENABLE being released (ENABLE=L→H) is different from

the released occasion at the section of CLK=H and from the released occasion at the section of CLK＝L .

ENABLE

Motor output

OPEN (electrical angle maintained)

ACTIVE

○PS(pin8)／Power

save terminal

PS can make circuit standby state and make motor output OPEN. In standby state, translator circuit is reset (initialized)

and electrical angle is initialized.

Please be careful because there is a delay of 40μs(Max.) before it is returned from standby state to normal state and

the motor output becomes ACTIVE.

State

Standby state (RESET)

ACTIVE

The electrical angle (initial electrical angle) of each excitation mode immediately after RESET is as follows Please be

careful because the initial state at the time of FULL STEP is different from HALF STEP.

Excitation mode

Initial electrical angle

FULL STEP

HALFSTEP A

45°

0°

●Protection

Circuits

○Thermal

shutdown (TSD)

This IC features an integrated thermal shutdown for protection against thermal destruction. When the IC’s chip

temperature rises above 175°C (Typ.), the motor output is forced open. When the temperature returns to 150°C or

less (Typ.), the IC automatically resumes normal operation. However, even if TSD has engaged, the IC may become

damaged if heat continues to be absorbed from an external source.

○Over-current

protection (OCP)

This IC features an integrated over-current protection circuit to protect against destruction if the motor outputs are

shorted to one another, if VCC is shorted to the motor output, or if the motor output is shorted to GND. The circuit

latches the motor output open if current flows above the maximum threshold for 4 µS (Typ.), and is disengaged when

the IC is power-cycled or if the PS terminal is reset. The OCP circuitry is designed only to protect the IC from irregular

conditions (such as motor output shorts) and is not designed to be used as an active security device for the application.

Therefore, applications should not be designed under the assumption that this circuitry will engage. After OCP has

engaged, if irregular conditions continue after a power cycle or PS pin reset, OCP may engage repeatedly, causing the

IC to generate heat or otherwise suffer damage. If the inductance of the IC’s input/output wiring is large (e.g., due to

long trace length), overload current may flow into the wiring before OCP engages, causing a jump in voltage on the

input/output pin that may exceed the IC’s absolute maximum rating and damage the IC. Additionally, if the IC

conducts a current through the output that is larger than the specified output current rating but lower than the OCP

threshold, the IC may heat up beyond its maximum rating (Tjmax = 150°C) and destroy itself. Therefore, ensure that

the set output current does not exceeds the IC’s maximum output rating.

www.rohm.com

4/8

2012.02 - Rev.A

BD63801EFV

Technical Note

○Under-voltage

lockout (UVLO)

This IC features an integrated under-voltage lockout function to prevent against output when powered by an insufficient

supply voltage. If the supply voltage connected to the VCC terminal drops below 15 V (Typ.), the motor output is

forced open. This switching voltage threshold has a hysteresis of 1 V (Typ.) to prevent malfunction due to noise on

the input. This circuit does not function in power-save mode. Also, when driving the IC in serial (CLK-in) mode, the

output angle is reinitialized to the default angle upon release of the UVLO circuitry.

○Over-voltage

lockout (OVLO)

This IC features an integrated over-voltage lockout function to prevent against output when powered by a supply

voltage exceeding the rated input voltage range. If the supply voltage connected to the VCC terminal reaches 32 V

(Typ.), the motor output is forced open. This switching voltage threshold has a hysteresis of 1 V (Typ.) and a

noise-masking period of 4 µs (Typ.) to prevent malfunction due to noise on the input. Although the IC features this

integrated protection device, it may still be destroyed if the input voltage exceeds the IC’s absolute maximum ratings.

This circuit does not operate in power-save mode.

○Ghost

supply prevention

This IC features integrated ghost supply protection circuitry, which prevents the IC from being powered by a logic input

when the power supply is disconnected or grounded. This circuitry prevents current from flowing through the

integrated ESD protection diodes (located between logic input pins and the VCC pin), ensuring that the IC itself or any

other peripherals connected to the VCC pin cannot be powered by an input signal on any logic terminals. Therefore,

the circuit will not malfunction if a logic signal is input to the IC while the power supply is disconnected or grounded.

●

Power dissipation

○

HTSSOP-B24 package

The HTSSOP-B24 package features a heat-radiating metal slag mounted on the backside of the IC. Ensure that the

PCB design incorporates large areas of copper to facilitate heat dissipation as much as possible. As the heat slag is

shorted with the substrate of the IC die, ensure that the slag is connected to GND. Connecting the slag to a potential

other than GND will cause the chip to malfunction. Also ensure that the backside of the chip is completely and firmly

soldered onto the PCB. The ratings specified in this sheet assume the IC has been properly mounted and soldered,

and that the PCB has been adequately designed to facilitate heat dissipation.

Measurement machine：TH156（Kuwano Electric）

Measurement condition：ROHM board

Board size：70*70*1.6mm

(With through holes on the board)

The exposed metal of the backside is connected to the board with

solder.

Board①：1-layer board(Copper foil on the back 0mm )

Board②：2-layer board(Copper foil on the back 15*15mm )

Board③：2-layer board(Copper foil on the back 70*70mm )

Board④：4-layer board(Copper foil on the back 70*70mm )

Board①：θ

113.6℃/W

Board②：θ

73.5℃/W

Board③：θ

44.6℃/W

Board④：θ

31.3℃/W

4.0

4.0W

3.0

Power Dissipation : Pd[W]

2.8W

2.0

1.7W

1.1W

1.0

100

125

Fig.2 HTSSOP-B24 Derating curve

www.rohm.com

5/8

2012.02 - Rev.A

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