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BD63821EFV-E2

P1-P3P4-P6P7-P9P10-P11
1/8
www.rohm.com
2012.02 - Rev.
A
© 2012 ROHM Co., Ltd. All rights reserved.
Moter Drivers for Printers
Motor Drivers with Brush
for Printers
BD63821EFV, BD63823EFV
●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.
No.12010EAT06
Technical Note
2/8
BD63821EFV, BD63823EFV
www.rohm.com
2012.02 - Rev.
A
© 2012 ROHM Co., Ltd. All rights reserved.
●Absolute maximum ratings (Ta=25°C)
Item Symbol BD63823 BD63821 Unit
Supply voltage V
CC1,2
-0.3~+36.0 V
Power dissipation Pd
1.45
※
1
W
4.70
※
2
W
Input voltage for control pin V
IN
-0.3~+7.0 V
RNF maximum voltage V
RNF
0.7 V
Output current I
OUT
2.0
※
3
1.0
※
3
A/ch
Output current (peak)
※
4
I
OUTPEAK
2.8
※
3
1.5
※
3
A/ch
FAULT, LOCK voltage V
FAULT
-0.3~7.0 V
FAULT, LOCK current I
FAULT
5 mA
Operating temperature range T
opr
-25~+85 °C
Storage temperature range T
stg
-55~+150 °C
Junction temperature T
jmax
+150 °C
※1 70mm×70mm×1.6mm glass epoxy board. Derating in done at 11.6mW/°C for operating above Ta=25°C.
※2 4-layer recommended board. Derating in done at 37.6mW/°C for operating above Ta=25°C.
※3 Do not, however exceed Pd, ASO and Tjmax=150°C.
※4 Pulse width tw≦20ms
●Operating conditions (Ta= -25~+85°C)
●Electrical characteristics (Unless otherwise specified Ta=25°C, V
CC1.2
=24V)
Item Symbol
Limit
Unit Condition
Min. Typ. Max.
Whole
Circuit current at standby I
CCST
- 1.0 2.5 mA PS=0V
Circuit current I
CC
- 2.5 5.0 mA PS=IN1A=IN1B=5V
Control input (IN1A, IN1B, IN2A, IN2B, PS)
H level input voltage V
INH
2.0 - - V
L level input voltage V
INL
- - 0.8 V
H level input current I
INH
35 50 100 µA V
IN
=5V
L level input current I
INL
-10 0 - µA V
IN
=0V
FAULT LOCK output (FAULT, LOCK)
Output low voltage V
FAULT
- 50 100 mV I
FAULT
=1mA
Output leak current I
FAULT_LEAK
- - 10 µA V
FAULT
=5V
Output (OUT1A, OUT1B, OUT2A, OUT2B)
Output on resistance (BD63823EFV) R
ON
- 0.65 0.90 Ω
I
OUT
=1.5A,sum of upper and lower
Output on resistance (BD63821EFV) R
ON
1.90 2.50 Ω
I
OUT
=0.5A,sum of upper and lower
Output leak current I
LEAK
- - 10 µA
Current control
RNFXS input current I
RNFS
-2.0 -0.1 - µA RNFXS=0V
RNFX input current I
RNF
-40 -20 - µA RNFX=0V
VREF input current I
VREF
-2.0 -0.1 - µA VREFX=0V
VREF input voltage range V
REF
0 - 3.0 V
Minimum on time (Blank time) t
ONMIN
0.7 1.5 3.0 µs
Current limit
Comparator threshold
V
CTH
0.57 0.60 0.63 V VREFX=3V
Item Symbol Min. Typ. Max. Unit
Supply voltage V
CC1,2
19 24 28 V
Input voltage for control pin V
IN
0 - 5.5 V
PWM input frequency F
IN
- - 100 kHz
Technical Note
3/8
BD63821EFV, BD63823EFV
www.rohm.com
2012.02 - Rev.
A
© 2012 ROHM Co., Ltd. All rights reserved.
●Terminal function and Application circuit diagram
Pin No. Pin name Function Pin No. Pin name Function
1 GND Ground terminal 15 LOCK Motor lock signal output terminal
2 OUT1B H bridge output terminal 16 IN1A H bridge control terminal
3 RNF1
Connection terminal of resistor
For output current detection
17 IN1B H bridge control terminal
4 RNF1S
Input terminal of current limit
comparator
18 TEST Terminal for testing
5 OUT1A H bridge output terminal 19 IN2A H bridge control terminal
6 NC Non connection 20 IN2B H bridge control terminal
7 VCC1 Power supply terminal 21 NC Non connection
8 NC Non connection 22 VCC2 Power supply terminal
9 GND Ground terminal 23 NC Non connection
10 CR
Connection terminal of CR
for setting chopping frequency
24 OUT2A H bridge output terminal
11 VREF1 Current limit value setting terminal 25 RNF2S
Input terminal of current limit
comparator
12 VREF2 Current limit value setting terminal 26 RNF2
Connection terminal of resistor
for output current detection
13 PS Power save terminal 27 OUT2B H bridge output terminal
14 FAULT Fault signal output terminal 28 NC Non connection
●Application circuit diagram
Constant voltage control or external PWM control (when not using the motor lock detection function)
Fig.1Application circuit diagram of constant voltage control or external PWM control
(When not using the motor lock detection function)
M
M
Terminal for testing
Connect to GND.
Bypass capacitor.
Setting range is
100uF~470uF(electrolytic)
0.01uF~0.1uF(multilayer ceramic etc.)
Be sure to short VCC1 & VCC2.
Control input terminal.
Predriver
7
VCC1
UVLO
Regulator
16
IN1
A
17
IN1B
VREF1
11
2
OUT1B
5
OUT1A
3
RNF1
22
VCC2
24
OUT2A
1,9
GND
27
OUT2B
26
RNF2
Control logic
＋
－
OSC
OVLO
RNF1S
100µF
0.1µF
19
IN2
A
20
IN2B
Forward
Reverse
BRAKE
Open
Forward
Reverse
BRAKE
Open
14
FAULT
4
RNF1S
25
RNF2S
CR
10
18
TEST
13
PS
When using the fault output function
⇒Pull up resistor 5kΩ~100kΩ.
Not using
⇒Connect to GND.
3.3V or 5.0V
10kΩ
＋
－
1/5
VREF2
12
＋
－
RNF2S
＋
－
1/5
Blank time
PWM control
TSD OCP
15
LOCK
Power save terminal
P1-P3P4-P6P7-P9P10-P11

BD63821EFV-E2

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