BD63860EFV-E2 datasheet, PDF - EEWORLD Datasheet

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BD63860EFV-E2: DescriptionMotor / Motion / Ignition Controllers & Drivers STEP MOTOR DRIVER 16-28V 2.5A; CategoryOther integrated circuit (IC) The signal circuit; File Size390KB，12 Pages; ManufacturerROHM Semiconductor; Websitehttps://www.rohm.com/; Environmental Compliance

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Motor / Motion / Ignition Controllers & Drivers STEP MOTOR DRIVER 16-28V 2.5A

BD63860EFV-E2 Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Maker	ROHM Semiconductor
Parts packaging code	SSOP
package instruction	HVSSOP, TSSOP28,.25
Contacts	28
Reach Compliance Code	not_compliant
ECCN code	EAR99
Factory Lead Time	9 weeks
Analog Integrated Circuits - Other Types	STEPPER MOTOR CONTROLLER
JESD-30 code	R-PDSO-G28
JESD-609 code	e3
length	9.7 mm
Humidity sensitivity level	1
Number of functions	1
Number of terminals	28
Maximum operating temperature	85 °C
Minimum operating temperature	-25 °C
Maximum output current	2.5 A
Package body material	PLASTIC/EPOXY
encapsulated code	HVSSOP
Encapsulate equivalent code	TSSOP28,.25
Package shape	RECTANGULAR
Package form	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	260
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)	16 V
Nominal supply voltage (Vsup)	24 V
surface mount	YES
technology	BIPOLAR
Temperature level	OTHER
Terminal surface	Tin (Sn)
Terminal form	GULL WING
Terminal pitch	0.65 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	10
width	4.4 mm
Base Number Matches	1

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Stepping Motor Driver Series

Microstep 36V Series

Stepping Motor Driver

BD63860EFV

No.12009EAT09

●Description

BD63860EFV is a high-grade stepping motor driver with an internal 3-bit DAC, designed to drive bipolar stepping motors in

eighth-step modes. The IC features several integrated protection circuits and achieves excellent thermal dissipation

performance due to its low ON-resistance DMOS output transistors and high-dissipation power package.

This IC is rated for 36 V maximum input voltage / 2.5 A maximum output current and employs a constant-current, PWM

allowing for full-, half-, quarter- and eighth-step excitation modes. Additionally, the current decay mode can be freely set to

a ratio of fast and slow decay, allowing the IC to adapt to the optimum control conditions for every motor.

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

●Features

1) Single power supply input (Vin max. 36 V)

2) Rated output current: 2.5 A (peak)

3) Low ON-resistance DMOS output (0.8

Ω

total across upper + lower FETs)

4) Serial/CLK-IN drive mode (integrated translator circuit)

5) PWM constant-current control (fixed chopping frequency)

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

7) Full-, half-, quarter- and eighth-step functionality

8) AUTO decay mode

9) Current decay mode switching function (linearly variable fast/slow decay ratio)

10) Normal rotation & reverse rotation switching function

11) Power-save function

12) Built-in logic input pull-down resistor

13) Power-on reset function

14) Thermal shutdown circuit (TSD)

15) Over-current protection circuit (OCP)

16) Under-voltage lockout circuit (UVLO)

17) Over-voltage lockout circuit (OVLO)

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

19) Micro-miniature, ultra-thin and high heat-radiation (exposed metal type) HTSSOP package

●Applications

Laser printers, multi-function printers, inkjet printers, scanners, mini printers, PPCs, photo printers, etc.

www.rohm.com

1/8

2012.02 - Rev.A

BD63860EFV

Technical Note

●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.

○

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 12 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.

www.rohm.com

5/8

2012.02 - Rev.A

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