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BD64550EFV PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 BD64550EFV
기능 System Driver
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BD64550EFV 데이터시트, 핀배열, 회로
www.DataSheet4U.com
Motor Drivers for Printers
System Driver
for Ink Jet Printers
BD64550EFV
No.10016EAT03
Description
This is 1-chip system motor driver integrating 2-channel H-bridge driver, step-down switching regulator with built-in power
DMOS, series regulator and reset output.
Features
1) Low-on resistance output H-bridge driver (2-channel)
2) Constant-current chopping drive H-bridge driver
3) Switching regulator with built-in P-channel power DMOS FET
4) Soft start function: 23.6 ms (Typ.)
5) Reset release timer: 80 ms (Typ.)
6) 16 bit serial interface
7) Logic input interface (serial/parallel changeable)
8) Ultra thin type high heat dissipation HTSSOP-B40 package
9) Overcurrent protection in H-bridge driver block
10) Input voltage low voltage protection in H-bridge driver block
11) Overcurrent protection in switching regulator block
12) Output overvoltage protection in switching regulator block
13) Output low voltage protection in switching regulator block
14) Thermal shutdown
Applications
Inkjet printer, photo printer, etc.
Absolute Maximum Ratings (Ta=25)
Parameter
Symbol
Ratings
Unit
VM applied voltage
VM 40
Logic input voltage
VL -0.4 ~ 5.5
RIN applied voltage
VRIN
5.5
RNF voltage
VRNF
0.5
Power dissipation
Pd 1600*
Operating temperature range
Storage temperature range
Junction temperature
TOPR
TSTG
Tjmax
-25 ~ +85
-55 ~ +150
150
Motor driver output current (peak 500 ns)
Iomax (peak)
8.0
Motor driver output current (DC)
Iomax (DC)
2.5**
Switching regulator output current (DC)
Iomax
0.5
Series regulator output current (DC)
Iomax
0.25
* Reduced by 12.8 mW/over 25 , when mounted on a glass epoxy board (70 mm x 70 mm x 1.6 mm).
** Must not exceed Pd or ASO.
V
V
V
V
mW
A
A
A
A
Operating Conditions
Parameter
Symbol
Limit
Unit
VM operating power supply voltage range
SCLK max. operating frequency
Switching regulator output voltage range
VM
FSCLK
Vswreg
7 ~ 36
20
3~5
V
MHz
V
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
1/16
2010.06 - Rev.A




BD64550EFV pdf, 반도체, 판매, 대치품
BD64550EFV
Technical Note
www.DataSheet4U.com
Block Diagram, Application Circuit Diagram, and Pin Function
VM2
32
33
VM2
8 VM1
9
VM1
Be sure to use VM1,VM2.VM3 and VM4 by short-circuit.
OUT2P 39
34
OUT2M
0.2
(0.04~0.35)
RNF2 37
38
RNF2
36
RNF2S
VREF2 19
Same as RNF1
SELECT 22
DC2P 24
SCLK(DC1P) 27
DC2E 23
STROBE(DC1E) 25
SDATA 26
AGND
29
From
VDCDCOUT
16
RIN
ROUT
14
1µF
(0.1µF~2.2µF)
1/10
Pre
driver
Pre
driver
CONTROL LOGIC
1/10
Selector
Serial
Control
POWER
MONITOR
RESET
OSC
UVLO
TSD
BG
REG
BG BG
DRIVER
7 OUT1P
2
OUT1M
3 RNF1
4
5
RNF1
RNF1S
20 VREF1
0.2
(0.04~0.35)
31 VM3
300µF
(220µF~470µF)
28 RESET
40 PGND
21 DGND
VM4
10
SWOUT
220µH VDCDCOUT
2.7k
12
0.2Ω(0.04Ω~0.35Ω)
Io1=(VREF1/10)(1/RNF1S)
See P.9.
N.C.
OUT1M
RNF1
RNF1
RNF1S
N.C.
OUT1P
VM1
VM1
VM4
N.C.
SWOUT
N.C.
ROUT
N.C.
RIN
N.C.
DSEN
VREF2
VREF1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
100µF
18
DSEN
4700pF
1k
The figure on the left-hand side shows
optimum recommended values.
See P.10 for setting.
40 PGND
39 OUT2P
38 RNF2
37 RNF2
36 RNF2S
35 N.C.
34 OUT2M
33 VM2
32 VM2
31 VM3
30 N.C.
29 AGND
28 RESET
27 SCLK
26 SDATA
25 STROBE
24 DC2P
23 DC2E
22 SELECT
21 DGND
Fig.12 Block Diagram and Application Circuit Diagram
Fig.13 Pin Assignment Diagram
No.
Pin
name
Function
1 NC Non Connection
No.
Pin
name
21 DGND Digital GND
Function
2 OUT1M H-bridge output pin 1M
22 SELECT Input pin select pin
3 RNF1 Output current detection pin 1
23 DC2E H-bridge 2 side enable input pin
4 RNF1 Output current detection pin 1
24 DC2P H-bridge 2 side phase pin
5 RNF1S Output current detection input pin
6 NC Non Connection
25
STROBE
Serial port strobe input pin /
H-bridge 1 side enable pin
7 OUT1P H-bridge output pin 1P
26 SDATA Serial port data input pin
8 VM1 Motor power supply pin
9 VM1 Motor power supply pin
27
SCLK
Serial port clock input pin /
H-bridge 1 side phase input pin
10 VM4 Switching regulator power supply pin
28 RESET Reset signal output pin
11 NC Non Connection
29 AGND ANALOG GND
12 SWOUT Switching regulator output pin
30 NC Non Connection
13 NC Non Connection
31 VM3 Power supply pin
14 ROUT Series regulator output pin
32 VM2 Motor power supply pin
15 NC Non Connection
33 VM2 Motor power supply pin
16 RIN Series regulator power supply pin
34 OUT2M H-bridge output pin 2M
17 NC Non Connection
35 NC Non Connection
18 DSEN Switching regulator voltage sense pin
36 RNF2S Output current detection input pin
19 VREF2 Reference voltage input pin
37 RNF2 Output current detection pin 2
20 VREF1 Reference voltage input pin
38 RNF2 Output current detection pin 2
39 OUT2P H-bridge output pin 2P
40 PGND POWER GND
* Precaution regarding VM pin
If you use VM1, VM2, VM3 and VM4 not by short-circuit, they may be destroyed. Be sure to use them by short-circuit.
And be sure to set up a bypass capacitor (220µF to 470µF) closer to VM3 pin as much as possible.
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
4/16
2010.06 - Rev.A

4페이지










BD64550EFV 전자부품, 판매, 대치품
BD64550EFV
Serial Port Explanation
WORD_S
SWOFF
Set on/off of switching regulator circuit.
0 Switching regulator on
1 Switching regulator off
Technical Note
www.DataSheet4U.com
MASK SELECT
Common mask can be provided to 2-phase H-bridge drive noise mask (BLANK time).
0 Independent mask on single-phase/two-phase.
1 Common mask on single-phase/two-phase.
BLANK TIME
Current-limit comparator monitors RNF pin voltage to set limit to current, but during the period from switching on to BLANK
TIME, detection becomes invalid in order to avoid wrong detection caused by spike noise that happens at the time of
switching on. See P.8 for details.And during the period from ENABLE signal on to BLANK TIME at switching of PHASE
signal, detection becomes invalid as well.
[1]
[0]
BLANK TIME
Unit
00
2.0 µs
01
3.0 µs
10
4.0 µs
11
5.0 µs
OFF TIME
Set current decay time.
[2] [1] [0]
000
001
010
011
100
101
110
111
OFF TIME
6
8
10
12
14
16
18
20
Unit
µs
µs
µs
µs
µs
µs
µs
µs
WORD_D
S_ENABLE_1/S_ENABLE_2
Each bridge on/off signal. Output state is as follows.
Output state
0 Open
1 ACTIVE
S_PHASE_1/S_PHASE_2
Set the direction of current of each bridge. Output state is as follows.
PM
0
SINK
SOURCE
1 SOURCE
SINK
PWM_MODE_1/PWM_MODE_2
Set current decay mode in bridge1 and 2. (See page 8 for details about each mode.)
0 FAST DECAY
1 SLOW DECAY
()Rohm_Reserve
Rohm_Reserve is special mode setting port for inspection at shipment. Especially, if Rohm Reserve [3], [4], [5], [7], [8], [9], [10], [11] is set to H by mistake,
malfunction may be caused. Be sure not to set.
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
7/16
2010.06 - Rev.A

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BD64550EFV

System Driver

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