LB1916 - Sanyo Semiconductor

Ordering number : EN5653

53197HA(OT) No. 5653-1/7

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

SANYO: QFP34H-C

[LB1916]

LB1916

SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN

CD-ROM Spindle Motor Driver

Monolithic Digital IC

Ambient temperature, Ta – °C

Allowable power dissipation, Pdmax – W

Parameter Symbol Conditions Ratings Unit

Maximum supply voltage VCC1 max 14 V

VCC2 max 7.0 V

Output voltage VOU, V, W 13 V

Output current IOUT 1.0 A

Allowable power dissipation Pd max Independent IC 0.77 W

Operating temperature Topr –20 to +75 °C

Storage temperature Tstg –55 to +150 °C

Specifications

Absolute Maximum Ratings at Ta = 25°C

Parameter Symbol Conditions Ratings Unit

Supply voltage VCC15 to 12.5 V

VCC2V

CC1 ≥VCC2 4.3 to 6.5 V

VCREF input voltage VCREF VCC2/2±1.0 V

Allowable Operating Ranges at Ta = 25°C

No. 5653-2/7

LB1916

Parameter Symbol Conditions Ratings Unit

min typ max

ICC1VC= 2.5 V, VCREF = 2.5 V, RL= ∞,17 30 mA

Supply current drain VS/S = 5 V, VRF = GND

ICC2 VC= 2.5 V, VCREF = 2.5 V 7.5 10.5 mA

(ICC for VCC1) ICC3VC= 2.5 V, VCREF = 2.5 V, RL= ∞,0.9 3 mA

VS/S = 0 V, VRF = GND

[Drive Block]

Output saturation voltage VO(sat)1 IOUT = 0.4 A, sink + source 1.6 2.2 V

VO(sat)2 IOUT = 0.8 A, sink + source 2.0 3.0 V

Output TRS sustainable voltage VO(sus) IOUT = 20 mA, *14 V

Output center voltage VOQ VC= 2.5 V, VCREF = 2.5 V 5.7 6.0 6.3 V

Hall amplifier input offset voltage VH offset –5 +5 mV

Hall amplifier input bias current IH bias 1 5 µA

Hall amplifier common-mode input voltage range

VHch 1.3 2.2 V

Hall input/output voltage gain VGHO 38 41 44 dB

Control - output drive gain 1 VGCO1 RZ1 = RZ2, GC1 = L, GC2 = L 23 26 dB

Control - output channel difference 1 ∆VGCO1 RZ1 = RZ2, GC1 = L, GC2 = L –1.5 +1.5 dB

Control - output drive gain 2 VGCO2 RZ1 = RZ2, GC1 = L, GC2 = H 29 32 dB

Control - output channel difference 2 ∆VGCO2 RZ1 = RZ2, GC1 = L, GC2 = H –1.9 +1.9 dB

Input dead band voltage VDZ RZ1 = RZ2, GC1 = L, GC2 = H ±24 ±50 mV

VO(voltage between out and OUT) = 0.1 V

Input bias current 1 IBSERVO VC = 1.0 V 500 nA

S/S pin high-level voltage VS/S H Inputs are CMOS level, 4.0 V

(See Note.) S/S pin Vth = VCC2/2

S/S pin low-level voltage VS/S L Inputs are CMOS level, 1.0 V

(See Note.) S/S pin Vth = VCC2/2

Gain control 1 high-level voltage VGC1 H Inputs are CMOS level, 4.0 V

(See Note.) GC1 pin Vth = 2.0 V

Gain control 1 low-level voltage VGC1 L Inputs are CMOS level, 1.0 V

(See Note.) GC1 pin Vth = 2.0 V

Gain control 2 high-level voltage VGC2 H Inputs are CMOS level, 4.0 V

(See Note.) GC2 pin Vth = 2.0 V

Gain control 2 low-level voltage VGC2L Inputs are CMOS level, 1.0 V

(See Note.) GC2 pin Vth = 2.0 V

S/S pin input current IS/S Input voltage = 5 V 50 100 µA

Gain control 1 and 2 current IGC Input voltage = 5 V 53 110 µA

Rotation output saturation voltage V(sat)H.FG1, 2 IO= –5 mA 0.24 0.5 V

V(sus)H.FG1, 2 *7 V

Hall bias voltage VH± IO= 5 mA, RH= 200 Ω0.7 0.97 1.2 V

CTRL1 and CTRL2 are common,

CTRL pin high-level voltage VS/S H Inputs are CMOS level, 4.0 V

(See Note.) CTRL pin Vth = 2.5 V

CTRL1 and CTRL2 are common,

CTRL pin low-level voltage VS/S L Inputs are CMOS level, 1.0 V

(See Note.) CTRL pin Vth = 2.5 V

CTRL input pin ICTRL Input voltage = 5 V 53 110 µA

Thermal shutdown operating voltage TSD *150 180 210 °C

Thermal shutdown hysteresis ∆TSD *15 °C

Electrical Characteristics at Ta = 25°C, VCC1 = 12 V, VCC2 = 5 V

Note: Items marked with an asterisk are design target values and are not tested.

No. 5653-3/7

LB1916

Hall Logic Truth Table

An input “H” state is defined as UIN1 > UIN2, VIN1 > VIN2, and the potential

difference is at least 0.2 V.

When VC> VCREF: Forward rotation

When VC< VCREF: Reverse rotation

Source →Sink Hall input Forward/reverse control

UIN VIN WIN

1W →VH H L Forward

V →WReverse

2W →UH L L Forward

U →W Reverse

3V →WL L H Forward

W →VReverse

4U →VL H L Forward

V→> U Reverse

5V →UH L H Forward

U →V Reverse

6U →WL H H Forward

W →UReverse

Mode Switching Truth Table

The low level is 0 to 1.0 V

The high level is 4.0 V or higher

CTRL0 CTRL1 Mode

L L Control

L H Control

H L Acceleration

H H Deceleration

Pin Assignment

VCREF

No. 5653-4/7

LB1916

Peripheral Circuit Example

Block Diagram

Hall amp

Matrix

Forward/reverse selector

Hall bias

Start/stop

Absolute value detector

Mode

selector

Gain

selector

0/6 dB

VCREF

Thermal

shutdown

No. 5653-5/7

LB1916

Pin Functions

Pin No. Pin Pin voltage Pin function Equivalent circuit

3, 4,

20, 21 GND • GND

UOUT

VOUT

WOUT

• Outputs

• Connect these pins to the motor.

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,

7NC • No connection

16 VCC24.3 to 6.5 V • Power supply for circuits other than the output block

• The power supply provided by this pin must be well stabilized so

that noise does not occur.

14 Z1

• 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 kΩand a few hundreds of kΩ.

• The gain is about 6 dB.

12 VC

VCREF

VCC2

——— ±1.0

• VCis the speed control pin.

When VC> VCREF: Forward rotation

When VC< VCREF: Reverse rotation

The output voltage is controlled by the VCvoltage.

• VCREF determines the motor control stop voltage. Normally, this

will be VCC2/2.

10 GC1

GC2 0 to VCC2

• I/O gain switching input

• 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. 5653-6/7

LB1916

Pin No. Pin Pin voltage Pin function Equivalent circuit

8CTRLφ

CTRL1 0 to VCC2• Operating mode switching input

• These pins select control, acceleration, or deceleration according

to the mode switching truth table.

6 S/S 0 to VCC2• Apply a high level to the S/S pin for start, and a low level for stop.

• The threshold is VCC2/2.

5 FC • Oscillation can be prevented by connecting a capacitor between

the FC pin and ground to lower the I/O gain frequency

characteristics.

WIN2

WIN1

VIN1

VIN2

UIN2

UIN1

1.3 to 2.2 V

• W phase Hall element inputs

Logic high is when WIN1 > WIN2.

• V phase Hall element inputs

Logic high is when VIN1 > VIN2.

• U phase Hall element inputs

Logic high is when UIN1 > UIN2.

29 VH+

VH–2.4 V

1.4 V • Hall element power supply

There is a potential difference of 1.0 V between VH+and VH–.

Continued from preceding page.

Continued on next page.

No. 5653-7/7

LB1916

This catalog provides information as of May, 1997. Specifications and information herein are subject to change

without notice.

■No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace

equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of

which may directly or indirectly cause injury, death or property loss.

■Anyone purchasing any products described or contained herein for an above-mentioned use shall:

➀Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and

distributors and all their officers and employees, jointly and severally, against any and all claims and litigation and all

damages, cost and expenses associated with such use:

➁Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on

SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of their officers and employees

jointly or severally.

■Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for

volume production. SANYO believes information herein is accurate and reliable, but no guarantees are made or implied

regarding its use or any infringements of intellectual property rights or other rights of third parties.

Pin No. Pin Pin voltage Pin function Equivalent circuit

27 HFG2

HFG1 0 to VCC2

• Hall FG pins

• The Hall waveform is modified and used as FG pulses.

• The phase relationship between HFG1 and HFG2 is used as a

forward/reverse signal.

26 CL 0 to VCC2• The current limiter operates when the Rf pin voltage reaches the

voltage on the CL pin.

The CL potential is determined externally.

25 VCC15 to 12.5 V • Power supply for the output block

• The power supply provided to this pin must be well stabilized so

that noise does not occur.

Continued from preceding page.