SANYO LB11817 Datasheet

Ordering number :EN*6213A

63099RM (OT) No. 6213-1/10

Overview

The LB11817 is a spindle motor driver for use in slimshaped FDDs that use 5 V power supply.

Functions and Features

• Three-phase full-wave linear drive

• Low saturation voltage

• Built-in digital speed control

• Start/stop circuit (active low)

• Speed switching

• Current limiter

• Index processing circuit

• The index timing can be adjustment with a variable resistor.

• Thermal protection circuit

Package Dimensions

unit: mm

3247-SSOP36

0.8

15.2

0.5

7.6

0.20

0.30

0.8

5.6 1.0

(1.5)

1.8max

0.10

Preliminary

SANYO: SSOP36

[LB11817]

SANYO Electric Co.,Ltd. Semiconductor Company

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN

Monolithic Digital IC

LB11817

Three-Phase Full-Wave Linear Drive

Any and all SANYO products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft’s control systems, or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. Consult with your SANYO representative nearest you before using any SANYO products described or contained herein in such applications.

SANYO assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all SANYO products described or contained herein.

Parameter Symbol Conditions Ratings Unit

Maximum supply voltage V

max 7.0 V

Maximum output current I

O max

1t ≤ 0.5 s 1.5 A

Maximum steady-state output current I

O max

2 1.0 A Allowable power dissipation 1 Pdmax1 Independent IC 0.6 W Operating temperature Topr –20 to +80 °C Storage temperature Tstg –40 to +150 °C

Specifications

Absolute Maximum Ratings at Ta = 25°C

Parameter Symbol Conditions Ratings Unit

Supply voltage V

4.2 to 6.5 V

Allowable Operating Ranges at Ta = 25°C

No. 6213-2/10

LB11817

Electrical Characteristics at Ta = 25°C, VCC= 5 V

Note: * Items shown to be design target values are not measured.

Parameter Symbol Conditions

Ratings

Unit Note

min typ max

Current drain

CCO

S/S = 5 V (standby mode) 10 µA

S/S = 0 V (normal operation) 17 25 mA

SL bias current I

VSL= 0 V 10 µA

SL low-level input voltage V

SLL

0 1.0 V

SL high-level input voltage V

SLH

3.5 V

S/S bias current I

S/S

150 230 µA

S/S low voltage V

S/SL

0 0.8 V

S/S high voltage V

S/SH

3.5 V

Hall amplifier input bias current I

10 µA

Common-mode input voltage range

1.5

– 1.0

Differential input voltage range V

dif

50 200 mVp-p

Hall bias output voltage V

IH= 5 mA 0.5 0.8 1.1 V

Hall bias leakage current I

HBL

S/S = 5 V ±10 µA

Output saturation voltage V

sat

IO= 0.5 A sink+source 0.45 0.67 V

Output leakage current I

1.0 mA

Current limiter V

lim

0.27 0.3 0.33 V

Control amplifier voltage gain G

–9 –7 –5 dB

Voltage gain inter-phase difference

∆G

±1 dB

V/I conversion source current I

91419µA

V/I conversion sink current I

–

–9 –14 –19 µA

V/I conversion current ratio I

+/I–

0.8 1.0 1.2

DSC buffer input current I

DSC

1.0 µA

FG amplifier voltage gain G

48 dB *

FG offset amplifier input V

FG0

±10 mV *

FG amplifier internal reference voltage

FGB

2.2 2.5 2.8 V FG Schmitt hysteresis ∆Vsh 50 mV * Speed discriminator counts N 1041.5 Discriminator operating frequency

1.1 MHz *

Oscillator frequency range F

OSC

1.1 MHz *

Index output low-level voltage V

IDL

IO= 2 mA 0.4 V

Index output leakage current I

IDL

±10 µA

Index amplifier common-mode

1.0

– 1.0

input voltage range Index input hysteresis ∆V

25 mV Boost voltage VP Ip = –5 mA 1.39 1.55 1.71 V Thermal protection circuit

TSD 150 180 °C *

operating temperature Hysteresis ∆TSD 40 °C *

No. 6213-3/10

LB11817

Pin Assignment

LB11817

I-

I+

FG+

FG-

W-

W+

FGO

V-

UU+ NC

NC NC

UOUT VOUT

PGND

WOUT

V+

VCC

GND

CLK

S/S

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