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PDF BD65492MUV Data sheet ( Hoja de datos )

Número de pieza BD65492MUV
Descripción Dual H-Bridge Driver
Fabricantes ROHM Semiconductor 
Logotipo ROHM Semiconductor Logotipo



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Datasheet
H-Bridge Drivers for DC Brush Motors
Dual H-Bridge Driver
High-Speed Switching Type
BD65492MUV
General Description
The BD65492MUV provides a dual H-bridge motor
driver which features wide range of motor power supply
voltage from 1.8V to 16.0V and low power consumption
to switch low ON-Resistance DMOS transistors at high
speed. This small surface mounting package is most
suitable for mobile system, home appliance and various
applications.
Features
Low ON-Resistance Power DMOS Output
Charge Pump-Less with PDMOS High-Side Driver
Drive Mode Switch Function
Control Input Voltage Range Fit 1.8V Controller
Under Voltage Locked Out Protection
& Thermal Shut Down Circuit
Key Specifications
Power Supply Voltage Range:
2.5V to 5.5V
Motor Power Supply Voltage Range: 1.8V to 16.0V
Circuit Current (Open Mode):
0.90mA(Typ)
Stand-By Current:
1μA (Max)
Control Input Voltage Range:
0V to VCCV
Logic Input Frequency:
500kHz(Max)
Minimum Logic Input Pulse Width:
0.5μs(Min)
Turn On Time:
200ns(Typ)
Turn Off Time:
80ns(Typ)
H-Bridge Output Current (DC):
-1.0A to +1.0A
Output ON-Resistance (Total):
0.90Ω(Typ)
Operating Temperature Range: -30°C to +85°C
Package
VQFN024V4040
W(Typ) x D(Typ) x H(Max)
4.00mm x 4.00mm x 1.00mm
Applications
Mobile system
Home appliance
Amusement system, etc
VQFN024V4040
Typical Application Circuit
Bypass Filter Capacitor for
Power Supply
Power-Saving
H: Active
L: Stand-by
PS 11
Motor Control Input
Selectable Drive Mode
H: EN/IN
L: IN/IN
Motor Control Input
IN1A 17
IN1B 18
PWM 19
IN2A 14
IN2B 12
Always keep N.C. pins open.
1µF to 100µF
VCC
15
Power Save
TSD & UVLO
BandGap
Logic
Level Shift
&
Pre Driver
H-Bridge
Full ON
VM
21 22
OUT1A
23 24
23
OUT1B
Bypass Filter Capacitor for
Power Supply
1µF to 100µF
Logic
Level Shift
&
Pre Driver
H-Bridge
Full ON
VM
9 10
OUT2A
78
45
OUT2B
PGND
16
13
N.C.
20
N.C.
Keep Open
16
GND
It's better for VM pin groups of 9,10 and 21,22 to short-circuit on the
PCB pattern. If cannot, check into transitional characteristics of total
application circuit including two motors. Through low impedance
materials, the possibility of causing some unexpected malfunctions
is incontrovertible.
Product structureSilicon monolithic integrated circuit
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ2211114001
This product has no designed protection against radioactive rays
1/14
TSZ02201-0H3H0B300440-1-2
09.Dec.2015 Rev.002

1 page




BD65492MUV pdf
BD65492MUV
Typical Performance Curves (Reference data)
5.0
Top 85°C
Mid 25°C
Low -30°C
4.0
3.0
Operating range
(2.5V to 5.5V)
2.0
1.0
0.0
0
12 34 56
Power Supply Voltage : VCC [V]
Figure 1.
Circuit Current vs Power Supply Voltage
(Stand-by Mode)
7
3.0
Top 85°C
Mid 25°C
Low -30°C
2.0
Operating range
(2.5V to 5.5V)
1.0
0.0
0
1 2 34 5 6
Power Supply Voltage : VCC [V]
Figure 2.
Circuit Current vs Power Supply Voltage
(Open Mode)
7
800
Top 85°C
Mid 25°C
Low -30°C
600
800
Top 85°C
Mid 25°C
Low -30°C
600
400 400
200 200
0
0 200 400 600 800 1000
Output Current : IOUT [mA]
Figure 3.
Output VDS vs Power Output Current
(Output On-Resistance on high-side, VM=5V, VCC=3V)
0
0 200 400 600 800 1000
Output Current : IOUT [mA]
Figure 4.
Output VDS vs Power Output Current
(Output On-Resistance on low-side VM=5V, VCC=3V)
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
5/14
TSZ02201-0H3H0B300440-1-2
09.Dec.2015 Rev.002

5 Page





BD65492MUV arduino
BD65492MUV
Operational Notes continued
12. Regarding the Input Pin of the IC
This monolithic IC contains P+ isolation and P substrate layers between adjacent elements in order to keep them
isolated. P-N junctions are formed at the intersection of the P layers with the N layers of other elements, creating a
parasitic diode or transistor. For example (refer to figure below):
When GND > Pin A and GND > Pin B, the P-N junction operates as a parasitic diode.
When GND > Pin B, the P-N junction operates as a parasitic transistor.
Parasitic diodes inevitably occur in the structure of the IC. The operation of parasitic diodes can result in mutual
interference among circuits, operational faults, or physical damage. Therefore, conditions that cause these diodes to
operate, such as applying a voltage lower than the GND voltage to an input pin (and thus to the P substrate) should
be avoided.
Resistor
Transistor (NPN)
Pin A
Pin A
Pin B
C
B
E
Pin B
P+
NN
Parasitic
Elements
P P+
NN
P Substrate
GND
Parasitic
Elements
N P+
N P N P+ N
P Substrate
Parasitic
GND
Elements
Figure 9.
Example of monolithic IC structure
GND
B
N Region
close-by
C
E
Parasitic
Elements
GND
13. Ceramic Capacitor
When using a ceramic capacitor, determine the dielectric constant considering the change of capacitance with
temperature and the decrease in nominal capacitance due to DC bias and others.
14. Area of Safe Operation (ASO)
Operate the IC such that the output voltage, output current, and power dissipation are all within the Area of Safe
Operation (ASO).
15. Thermal Shutdown Circuit(TSD)
This IC has a built-in thermal shutdown circuit that prevents heat damage to the IC. Normal operation should always
be within the IC’s power dissipation rating. If however the rating is exceeded for a continued period, the junction
temperature (Tj) will rise which will activate the TSD circuit that will turn OFF all output pins. When the Tj falls below
the TSD threshold, the circuits are automatically restored to normal operation.
Note that the TSD circuit operates in a situation that exceeds the absolute maximum ratings and therefore, under no
circumstances, should the TSD circuit be used in a set design or for any purpose other than protecting the IC from
heat damage.
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
11/14
TSZ02201-0H3H0B300440-1-2
09.Dec.2015 Rev.002

11 Page







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