m56749fp Mitsumi Electronics, Corp., m56749fp Datasheet

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m56749fp

Manufacturer Part Number
m56749fp
Description
4 Channel Actuator Motor Driver
Manufacturer
Mitsumi Electronics, Corp.
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
M56749FP
Manufacturer:
MIT
Quantity:
20 000
DESCRIPTION
The M56749FP is a semiconductor integrated circuit designed for a
CD-ROM actuator driver.
This device can function 4 channel actuators by 1 chip due to
include 4 channel BTL drivers.
Also, this device include a mute circuit, a Vcc check circuit and
TSD function.
FEATURES
APPLICATION
CD-ROM
BLOCK DIAGRAM
Lower saturation voltage.
(typical 1.35V at load current 500mA)
Wide supply voltage range.
(4.5V to 13.2V)
Lower cross-over distortion.
VM1(+)
VM2(+)
Vctl1H
VM1(-)
Vctl2H
VM2(-)
Vctl1L
Vctl2L
15
14
12
13
4
5
7
6
+
+
+
+
-
-
-
-
+
+
-
-
CH1
CH2
Vm1 Vbs1
16
17
Mute3ch-
2
Mute on : Low or open
+
-
Vref
36
3ch
Mute4ch-
3
Vcc
18
- POR
4ch
-Por
PIN CONFIGURATION (TOP VIEW)
19
Vm2
2
SS.GND
34
Vm2
TSD
4 CHANNEL ACTUATOR MOTOR DRIVER
Vrefm
35
MITSUBISHI <CONTROL / DRIVER IC>
Vrefm-out
Mute3ch-
Mute4ch-
GND
VM1(+)
VM2(+)
+
VM1(-)
VM2(-)
Vctl1H
Vctl2H
-
Vctl1L
Vctl2L
Vbs1
Vm1
Vrefm-out
Vcc
8
1
PGND (8PIN)
10
11
12
13
14
15
16
17
18
1
2
3
4
5
6
7
8
9
Outline 36P2R-D
11 26
Vbs2
20
29
CH4
CH3
Vm2
21
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
20
19
21
+
+
-
-
M56749FP
Vref
Vrefm
SS . GND
Vctl4L
Vctl4H
VM4(-)
VM4(+)
VM3(+)
VM3(-)
Vctl3(-)
Vctl3(+)
Vm2
Vbs2
-Por
GND
+
+
+
-
+
-
-
-
33
32
30
22
23
25
24
31
Vctl4L
Vctl4H
VM4(+)
Vctl3(+)
Vctl3(-)
VM3(+)
VM3(-)
VM4(-)

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m56749fp Summary of contents

Page 1

... DESCRIPTION The M56749FP is a semiconductor integrated circuit designed for a CD-ROM actuator driver. This device can function 4 channel actuators by 1 chip due to include 4 channel BTL drivers. Also, this device include a mute circuit, a Vcc check circuit and TSD function. FEATURES Lower saturation voltage. ...

Page 2

... Max. Typ. 4.5 5.0 5 5.0 Vm+1.0 V M56749FP Function Vcc check signal output Bootstrap power supply-2 Motor power supply-2 3th channel non-inverted amp. input 3th channel inverted amp. input 3th channel inverted amp. output 3th channel non-inverted amp. output GND 4th channel non-inverted amp. output 4th channel inverted amp ...

Page 3

... Vctl3(+)–Vctl3(-) (Vctl3(-)= {VM4(+)–VM4(-)} (Vctl4L= (Vctl4L–Vref) {VM4(+)–VM4(-)} (Vctl4H= (Vctl4H–Vref) connected 10k ) M56749FP Limits Unit Min. Typ. Max 3.0 6.0 mA 1.35 1.90 V -26 +26 mV -100 ...

Page 4

... VM3 VM3- - Vrefm (Vm2/2) Vctl4H ( between a input (Vin4) and out when a voltage is inputted from Vin4. + Vref VM4 (2.1V VM4- - Vrefm (Vm2/2) M56749FP 4 pin). Vctl1L <INPUT> 1V <OUTPUT> VM1- VM1+ 1.5V 1.5V pin). 15 Vctl2L 1V VM2- VM2+ 2.0V 2.0V Vctl3- 1V Vctl3+ VM3- VM3+ 0.8V pin) is connected 10k ...

Page 5

... Top side saturation voltage 0.95 1.00 1.05 This device can use this voltage value for actuator drive. 0.30 0.18 0.24 Bottom side saturation voltage 300 400 500 (mA) Load current GAIN PHASE 100 Frequency 100 125 150 M56749FP 180 (dB PHASE -90 -180 300 600 (kHZ) ...

Page 6

... OP1 7.5K PA 2.5K 10K 10K 5K 10K 10K 7.5K OP1 TSD Vcc -Por ) and pin must be connected with Motor power supply 17 20 M56749FP 36 Vref Vm2 2.1V 10K 35 OP1 Vrefm 10K GND 18K OP1 33 Vctl4L 2K 7.2K 32 Vctl4H 31 PA VM4- 10K Slide M 12 ...

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