BD63821EFV datasheet, PDF - EEWORLD Datasheet

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BD63821EFV: DescriptionBRUSH DC MOTOR CONTROLLER, 1.5 A, PDSO28; CategoryOther integrated circuit (IC) The signal circuit; File Size257KB，9 Pages; ManufacturerROHM Semiconductor; Websitehttps://www.rohm.com/; Environmental Compliance

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BD63821EFV Overview

BRUSH DC MOTOR CONTROLLER, 1.5 A, PDSO28

BD63821EFV Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
Parts packaging code	TSSOP
package instruction	ROHS COMPLIANT, HTSSOP-24
Contacts	28
Reach Compliance Code	compli
ECCN code	EAR99
Analog Integrated Circuits - Other Types	BRUSH DC MOTOR CONTROLLER
JESD-30 code	R-PDSO-G28
length	9.7 mm
Number of functions	1
Number of terminals	28
Maximum operating temperature	85 °C
Minimum operating temperature	-25 °C
Maximum output current	1.5 A
Package body material	PLASTIC/EPOXY
encapsulated code	HVSSOP
Package shape	RECTANGULAR
Package form	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	NOT SPECIFIED
Certification status	Not Qualified
Maximum seat height	1 mm
Maximum supply voltage (Vsup)	28 V
Minimum supply voltage (Vsup)	19 V
Nominal supply voltage (Vsup)	24 V
surface mount	YES
Temperature level	OTHER
Terminal form	GULL WING
Terminal pitch	0.65 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	NOT SPECIFIED
width	4.4 mm
Base Number Matches	1

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Moter Drivers for Printers

Motor Drivers with Brush

for Printers

BD63821EFV, BD63823EFV

No.12010EAT06

●Description

BD63821EFV/BD63823EFV series are built-in 2 channel H-bridge circuits that can drive 2pcs DC brush motor or 1pcs

stepping motor.

These drivers facilitate low power consumption by the direct PWM or PWM constant current control.

●Feature

1) Single power supply input (rated voltage of 36V)

2) Rated output current (peak): 1.0A(1.5A), 2.0A(2.8A)

3) Low ON resistance DMOS output

4) Forward, Reverse, Brake, Open

5) Power save function

6) External PWM control

7) PWM constant current control (current limit function)

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

9) Driver for 2 DC brush motor

10) Driver for 1 stepping motor

11) FULL STEP, HALF STEP (driving stepping motor)

12) µSTEP drive by external DAC (driving stepping motor)

13) Built-in logic input pull-down resistor

14) Cross-conduction prevention circuit

15) Signal output of detecting the motor lock state (Wired-OR)

16) Signal output of detecting the abnormal states (Wired-OR)

17) Thermal shutdown circuit (TSD)

18) Over current protection circuit (OCP)

19) Under voltage lock out circuit (UVLO)

20) Over voltage lock out circuit (OVLO)

21) Ghost Supply Prevention (protects against malfunction when power supply is disconnected)

22) Electrostatic discharge: 8kV (HBM specification)

23) Adjacent pins short protection

24) Inverted mounting protection

25) Microminiature, ultra-thin and high heat-radiation (exposed metal type) HTSSOP-B28 package

26) Pin-compatible line-up

●Application

PPC, multi-function printer, laser beam printer, ink jet printer, monitoring camera, WEB camera, sewing machine, photo

printer, FAX, scanner, mini printer, toy, and robot etc.

www.rohm.com

1/8

2012.02 - Rev.A

BD63821EFV, BD63823EFV

●Points

to notice for terminal description

○PS/

Power save terminal

PS can make circuit standby state and make motor output open

Please be careful of delay 40μs(max.) before it is returned from off state to normal state.

State

POWER SAVE (STANDBY)

ACTIVE

Technical Note

○IN1A,I

N1B, IN2A, IN2B/ H bridge control terminal

Input

Output

IN1A

IN1B

OUT1A

OUT1B

IN2A

IN2B

OUT2A

OUT2B

OPEN

X: H or L

State

POWER SAVE (STANDBY)

STOP

FORWARD

REVERSE

BRAKE

●Protection

Circuits

○Thermal

Shutdown (TSD)

This IC has a built-in thermal shutdown circuit for thermal protection. When the IC’s chip temperature rises above 175°C

(Typ.), the motor output becomes open. Also, when the temperature returns to under 150°C (Typ.), it automatically

returns to normal operation. However, even when TSD is in operation, if heat is continued to be added externally, heat

overdrive can lead to destruction.

○Over

Current Protection (OCP)

This IC has a built in over current protection circuit as a provision against destruction when the motor outputs are shorted

each other or VCC-motor output or motor output-GND is shorted. This circuit latches the motor output to open condition

when the regulated threshold current flows for 4μs (typ.). It returns with power reactivation or a reset of the PS terminal.

The over current protection circuit’s only aim is to prevent the destruction of the IC from irregular situations such as motor

output shorts, and is not meant to be used as protection or security for the set. Therefore, sets should not be designed to

take into account this circuit’s functions. After OCP operating, if irregular situations continues and the return by power

reactivation or a reset of the PS terminal is carried out repeatedly, then OCP operates repeatedly and the IC may

generate heat or otherwise deteriorate. When the L value of the wiring is great due to the wiring being long, after the over

current has flowed and the output terminal voltage jumps up and the absolute maximum values may be exceeded and as

a result, there is a possibility of destruction. Also, when current which is over the output current rating and under the OCP

detection current flows, the IC can heat up to over Tjmax=150°C and can deteriorate, so current which exceeds the

output rating should not be applied.

○Under

Voltage Lock Out (UVLO)

This IC has a built-in under voltage lock out function to prevent false operation such as IC output during power supply

under voltage. When the applied voltage to the VCC terminal goes under 15V (Typ.), the motor output is set to open. This

switching voltage has a 1V (Typ.) hysteresis to prevent false operation by noise etc. Please be aware that this circuit

does not operate during power save mode.

○Over

Voltage Lock Out (OVLO)

This IC has a built-in over voltage lock out function to protect the IC output and the motor during power supply over

voltage. When the applied voltage to the VCC terminal goes over 32V (Typ.), the motor output is set to OPEN. This

switching voltage has a 1V (Typ.) hysteresis and a 4μs (Typ.) mask time to prevent false operation by noise etc. Although

this over voltage locked out circuit is built-in, there is a possibility of destruction if the absolute maximum value for power

supply voltage is exceeded, therefore the absolute maximum value should not be exceeded. Please be aware that this

circuit does not operate during power save mode.

○Ghost

Supply Prevention (protects against malfunction when power supply is disconnected)

If a signal (IN1A, IN1B, IN2A, IN2B, PS, VREF1, VREF2) is input when there is no power supplied to this IC, there is a

function which prevents the false operation by voltage supplied via the electrostatic destruction prevention diode from

these input terminals to the VCC to this IC or to another IC’s power supply. Therefore, there is no malfunction of the

circuit even when voltage is supplied to these input terminals while there is no power supply.

www.rohm.com

4/8

2012.02 - Rev.A

BD63821EFV Related Products

	BD63821EFV	BD63821EFV_12
Description	BRUSH DC MOTOR CONTROLLER, 1.5 A, PDSO28	BRUSH DC MOTOR CONTROLLER, 1.5 A, PDSO28

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