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PDF LB1916 Data sheet ( Hoja de datos )
| Número de pieza | LB1916 | |
| Descripción | CD-ROM Spindle Motor Driver | |
| Fabricantes | Sanyo | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de LB1916 (archivo pdf) en la parte inferior de esta página. Total 7 Páginas | ||
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Ordering number : EN5653
Monolithic Digital IC
LB1916
CD-ROM Spindle Motor Driver
Overview
The LB1916 is a 3-phase motor driver that is optimal for
driving CD-ROM spindle motors.
Functions and Features
• 3-phase brushless motor driver
• 120° voltage linear drive control
• V-type input used for the control voltage
• Control gain switching supported
• Pins for system control and control of acceleration and
deceleration provided.
• Start/stop pin provided.
• Hall bias circuit
Package Dimensions
unit: mm
3219-QFP34H-C
[LB1916]
Ambient temperature, Ta – °C
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Maximum supply voltage
Output voltage
Output current
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VCC1 max
VCC2 max
VOU, V, W
IOUT
Pd max
Independent IC
Topr
Tstg
Allowable Operating Ranges at Ta = 25°C
Parameter
Supply voltage
VCREF input voltage
Symbol
VCC1
VCC2
VCREF
VCC1 ≥ VCC2
Conditions
Conditions
SANYO: QFP34H-C
Ratings
14
7.0
13
1.0
0.77
–20 to +75
–55 to +150
Unit
V
V
V
A
W
°C
°C
Ratings
5 to 12.5
4.3 to 6.5
VCC2/2±1.0
Unit
V
V
V
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
53197HA(OT) No. 5653-1/7
1 page  
Pin Functions
Pin No.
3, 4,
20, 21
Pin
GND
Pin voltage
• GND
LB1916
Pin function
23 UOUT
22 VOUT
19 WOUT
• Outputs
• Connect these pins to the motor.
Equivalent circuit
17 Rf
• Ground for the output transistors
• The output current can be detected as a voltage by connecting a
resistor between the Rf pin and ground. This can then be used to
implement overcurrent protection.
18, 24,
7
NC
• No connection
• Power supply for circuits other than the output block
16 VCC2 4.3 to 6.5 V • The power supply provided by this pin must be well stabilized so
that noise does not occur.
15 Z1
14 Z2
• Connections for the resistors that set the front-end amplifier gain
• Z1 and Z2 are common, and have a resistance of between a few
tens of kΩ and a few hundreds of kΩ.
• The gain is about 6 dB.
• VC is the speed control pin.
When VC > VCREF: Forward rotation
13
12
VC
VCREF
—VC—C—2 ±1.0
2
When VC < VCREF: Reverse rotation
The output voltage is controlled by the VC voltage.
• VCREF determines the motor control stop voltage. Normally, this
will be VCC2/2.
• I/O gain switching input
11
10
GC1
GC2
0 to VCC2
• GC1 switches Z1 and Z2 for the front end amplifier. When GC1 is
low, Z1 is selected, and when GC1 is high, Z2 is selected. GC2
switches the amplifier in the second stage.
Continued on next page.
No. 5653-5/7
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet LB1916.PDF ] | |
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