Datasheet
Motor Drivers for Digital Still Cameras
6-Channel System Lens Driver
for Digital Still Cameras
BD6373GW
General Description
The BD6373GW is a motor driver that integrates 6
Full-ON type H-Bridges. The device is intended to
drive a stepping motor for auto focus system, and
another stepping motor for either zoom or iris. It can
also be used to drive an actuator of the new system
like a lens barrier.
Key Specifications
Power Supply Voltage Range:
2.5V to 5.5V
Motor Power Supply Voltage Range: 2.5V to 5.5V
Circuit Current(No Signal & No Load): 1.0mA(Typ)
Control Input Voltage:
0V to V
CC
V
H-Bridge Output Current:
-0.5A/ch to +0.5A/ch
Output ON-Resistance(Each Channel): 1.2Ω(Typ)
Operating Temperature Range:
-25°C to +85°C
Features
Low ON-Resistance Power CMOS Output
Drive Mode Switch Function
Under Voltage Locked Out Protection
& Thermal Shut Down Circuit
Package
UCSP75M2
W(Typ) x D(Typ) x H(Max)
2.60mm x 2.60mm x 0.85mm
Applications
Mobile system
Home appliance
Amusement system, etc
UCSP75M2
Typical Application Circuit
Bypass filter
power supply
Capacitor
for
1µF to 100µF
VCC
F3
Bypass filter
power supply.
Capacitor
for
TSD
&
UVLO
Motor control input
BandGap
F2
VM12
1µF to 100µF
H bridge
ENABLE12 C2
INPUT1 D2
INPUT2 E3
E2 F1
E1
D1
C1
B1
OUT1A
OUT1B
Level Shift
Logic12
&
Full ON
Full ON
Full ON
Full ON
M
Pre Driver
H bridge
OUT2A
OUT2B
PGND12
1µF to 100µF
Bypass filter
power supply.
Capacitor
for
Motor control input
A2
VM34
ENABLE34 D3
INPUT3 B3
INPUT4 B4
Motor control input
A5
A1 B2
A3
H bridge
Level Shift
Logic34
&
Full ON
OUT3A
OUT3B
M
Pre Driver
H bridge
Full ON
A4 OUT4A
A6 B5
OUT4B
PGND34
1µF to 100µF
Bypass filter
power supply.
Capacitor
for
Motor control input
brake function
H : Brake
Motor control input
F5
VM56
C6
INPUT5 C5
BRAKE5 D4
INPUT6 E4
BRAKE6 D5
H bridge
Logic5
Level Shift
&
Full ON
D6
E6
E5 F6
B6
F4
GND
OUT5A
OUT5B
Logic6
Pre Driver
H bridge
Full ON
OUT6A
OUT6B
PGND56
Motor control input
brake function
H : Brake
○Product
structure：Silicon monolithic integrated circuit
.
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© 2015 ROHM Co., Ltd. All rights reserved.
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○This
product has no designed protection against radioactive rays
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BD6373GW
Pin Configurations
(TOP VIEW)
1
2
3
4
5
6
A
OUT3A
VM34
OUT3B
OUT4A
PGND34
OUT4B
B
PGND12
OUT3A
INPUT3
INPUT4
OUT4B
PGND56
INDEX
C
OUT2B
ENABLE12
POST
INPUT5
OUT5A
D
OUT2A
INPUT1
ENABLE34
BRAKE5
BRAKE6
OUT5B
E
OUT1B
OUT1A
INPUT2
INPUT6
OUT6B
OUT6A
F
OUT1A
VM12
VCC
GND
VM56
OUT6B
The pins of the same name, such as OUT3A, OUT4B, OUT1A, and OUT6B,
must be shorted on printed circuit boards.
Pin Descriptions
Pin No.
A1
A2
A3
A4
A5
A6
B1
B2
B3
B4
B5
B6
C1
C2
C3
C4
C5
C6
INPUT5
OUT5A
Pin Name
OUT3A
VM34
OUT3B
OUT4A
PGND34
OUT4B
PGND12
OUT3A
INPUT3
INPUT4
OUT4B
PGND56
OUT2B
ENABLE12
INDEX POST
-
Control logic input 5
H-bridge output 5A
Function
H-bridge output 3A
Motor power supply ch.3 & ch.4
H-bridge output 3B
H-bridge output 4A
Motor ground ch.3 & ch.4
H-bridge output 4B
Motor ground ch.1 & ch.2
H-bridge output 3A
Control logic input 3
Control logic input 4
H-bridge output 4B
Motor ground ch.5 & ch.6
H-bridge output 2B
Control logic input ch.1 & ch.2
Pin No.
D1
D2
D3
D4
D5
D6
E1
E2
E3
E4
E5
E6
F1
F2
F3
F4
F5
F6
Pin Name
OUT2A
INPUT1
ENABLE34
BRAKE5
BRAKE6
OUT5B
OUT1B
OUT1A
INPUT2
INPUT6
OUT6B
OUT6A
OUT1A
VM12
VCC
GND
VM56
OUT6B
Function
H-bridge output 2A
Control logic input 1
Control logic input ch.3 & ch.4
Control logic input ch.5
Control logic input ch.6
H-bridge output 5B
H-bridge output 1B
H-bridge output 1A
Control logic input 2
Control logic input 6
H-bridge output 6B
H-bridge output 6A
H-bridge output 1A
Motor power supply ch.1 & ch.2
Power supply
Ground
Motor power supply ch.5 & ch.6
H-bridge output 6B
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BD6373GW
Block Diagram
VCC
F3
TSD
&
UVLO
BandGap
F2 VM12
H bridge
ENABLE12 C2
INPUT1 D2
INPUT2 E3
E2 F1 OUT1A
E1 OUT1B
D1 OUT2A
C1 OUT2B
B1 PGND12
Level Shift
Logic12
&
Full ON
Full ON
Full ON
Full ON
Pre Driver
H bridge
A2 VM34
ENABLE34 D3
INPUT3 B3
INPUT4 B4
H bridge
Level Shift
Logic34
&
Full ON
A1 B2 OUT3A
A3 OUT3B
A4 OUT4A
A6 B5 OUT4B
A5 PGND34
Pre Driver
H bridge
Full ON
F5 VM56
C6 OUT5A
INPUT5 C5
BRAKE5 D4
INPUT6 E4
BRAKE6 D5
H bridge
Logic5
Level Shift
&
Full ON
D6 OUT5B
E6 OUT6A
E5 F6 OUT6B
B6 PGND56
F4
GND
Logic6
Pre Driver
H bridge
Full ON
Description of Blocks
1.
Motor Control Input
(a) ENABLE12, ENABLE34, INPUT1 to INPUT6 Pins
Logic level controls the output logic of H-Bridge.
(See the Electrical Characteristics; p.4/12, and I/O Truth Table; p.5/12)
(b) BRAKE5 & BRAKE6 Pins
Logic high puts the device in short brake mode.
(See the Electrical Characteristics; p.4/12 and I/O Truth Table; p.5/12)
2.
H-Bridge
Each H-bridge can be controlled independently. It is therefore possible to drive the H-bridges simultaneously, as long
as the package thermal tolerances are not exceeded. Because the respective output transistors consist of power
CMOS which consumes a motor power supply V
M
, the ON-Resistance value of high and low-side total is dependent
on V
M
voltage. Further, the whole application must be designed so that the maximum current of each channel may
be 500mA or below. (See the Recommended Operating Conditions; p.4/12)
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BD6373GW
Absolute Maximum Ratings (Ta=25°C)
Parameter
Power Supply Voltage
Motor Power Supply Voltage
Control Input Voltage
Power Dissipation
H-bridge Output Current
Storage Temperature Range
Junction Temperature
Symbol
V
CC
V
M
V
IN
Pd
I
OUT
Tstg
Tjmax
Limit
-0.5 to +6.5
-0.5 to +6.5
-0.5 to +V
CC
+0.5
0.94
(Note 1)
-0.8 to +0.8
(Note 2)
-55 to +150
150
Unit
V
V
V
W
A/ch
°C
°C
(Note 1) Reduced by 7.52mW/°C over 25°C, when mounted on a glass epoxy board (50mm x 58mm x 1.75mm; 8layers)
(Note 2) Must not exceed Pd, ASO, or Tjmax of 150°C
Caution:
Operating the IC over the absolute maximum ratings may damage the IC. The damage can either be a short circuit between pins or an open circuit
between pins and the internal circuitry. Therefore, it is important to consider circuit protection measures, such as adding a fuse, in case the IC is operated over
the absolute maximum ratings.
Recommended Operating Conditions
Parameter
Power Supply Voltage
Motor Power Supply Voltage
Control Input Voltage
H-bridge Output Current
(Note 3)
Operating Temperature Range
(Note 3) Must not exceed Pd, ASO, or Tjmax of 150°C
Symbol
V
CC
V
M
V
IN
I
OUT
Topr
Min
2.5
2.5
0
-0.5
-25
Typ
-
-
-
-
-
Max
5.5
5.5
V
CC
+0.5
+85
Unit
V
V
V
A/ch
°C
Electrical Characteristics (Unless otherwise specified V
CC
=3.0V, V
M
=5.0V, Ta=25°C)
Parameter
All Circuits
Circuit Current
High-Level Input Voltage
Low-Level Input Voltage
High-Level Input Current
Low-Level Input Current
UVLO Voltage
Output ON-Resistance 1
Output ON-Resistance 2
Turn ON Time
Turn OFF Time
Rise Time
Fall Time
I
CC
V
INH
V
INL
I
INH
I
INL
V
UVLO
R
ON1
R
ON2
t
ON
t
OFF
t
R
t
F
-
2.0
0
15
-1
1.6
-
-
-
-
0.1
-
1.0
-
-
30
0
-
1.2
1.5
0.55
0.08
0.15
0.03
1.9
V
CC
0.7
60
-
2.4
1.5
2.0
1.95
0.5
1.0
0.2
mA
V
V
μA
μA
V
Ω
Ω
μs
μs
μs
μs
I
OUT
=±400mA, V
M
=5.0V, total
I
OUT
=±400mA, V
M
=3.0V, total
R
L
=20Ω
R
L
=20Ω
R
L
=20Ω
R
L
=20Ω
V
IN
=3V
V
IN
=0V
No signal and no load
Control Input (IN=ENABLE12, ENABLE34, INPUT1 to INPUT6, BRAKE5, BRAKE6)
Symbol
Min
Typ
Max
Unit
Conditions
Under Voltage Locked Out (UVLO)
Full ON Type H-Bridge Driver (Each Channel)
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BD6373GW
Typical Performance Curves (Reference Data)
5.0
5.0
Top 85°C
Mid 25°C
Low -25°C
Top 85°C
Mid 25°C
Low -25°C
Operating range
(2.5V to 5.5V)
Output On Resistance : R
ON
[Ω]
4.0
4.0
Circuit Current : I
CC
[mA]
3.0
3.0
Operating range
(2.5V to 5.5V)
2.0
2.0
1.0
1.0
0.0
0.0
1.0
2.0
3.0
4.0
5.0
6.0
Power Supply Voltage : V
CC
[V]
7.0
0.0
0.0
1.0
2.0
3.0
4.0
5.0
6.0
Motor Power Supply Voltage : V
M
[V]
7.0
Figure 1.
Circuit Current vs Supply Voltage
Figure 2.
Output ON-Resistance vs Motor Power Supply Voltage
Timing Chart
Table 1. I/O Truth Table (Channel 1 & Channel 2)
INPUT
Input Mode
ENABLE12
INPUTx
L
EN/IN
H
H
X
L
H
OUTPUT
OUTxA
Z
H
L
OUTxB
Z
L
H
Output Mode
(Note 4)
Open
CW
CCW
L: Low, H: High, X: Don’t care, Z: Hi impedance
(Note 4) CW: Current flows from OUTxA to OUTxB, CCW: Current flows from OUTxB to OUTxA (x=1, 2)
Table 2. I/O Truth Table (Channel 3 & Channel 4)
INPUT
Input Mode
ENABLE34
INPUTx
L
EN/IN
H
H
X
L
H
OUTPUT
OUTxA
Z
H
L
OUTxB
Z
L
H
Output Mode
(Note 5)
Open
CW
CCW
L: Low, H: High, X: Don’t care, Z: Hi impedance
(Note 5) CW: Current flows from OUTxA to OUTxB, CCW: Current flows from OUTxB to OUTxA (x=3, 4)
Table 3. I/O Truth Table (Channel 5 & Channel 6)
INPUT
Input Mode
INPUTx
BRAKEx
L
IN/IN
H
X
L
L
H
OUTPUT
OUTxA
H
L
L
OUTxB
L
H
L
Output Mode
(Note 6)
CW
CCW
Short Brake
L: Low, H: High, X: Don’t care, Z: Hi impedance
(Note 6) CW: Current flows from OUTxA to OUTxB, CCW: Current flows from OUTxB to OUTxA (x=5, 6)
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