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Ordering number :EN*6213A
Monolithic Digital IC
LB11817
Three-Phase Full-Wave Linear Drive
Preliminary Overview
The LB11817 is a spindle motor driver for use in slimshaped FDDs that use 5 V power supply.
Package Dimensions
unit: mm 3247-SSOP36
[LB11817]
36 19
1.0
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
0.8
5.6
1
0.30
18
0.20
15.2
0.10
0.8
1.8max
(1.5)
SANYO: SSOP36
Specifications
Absolute Maximum Ratings at Ta = 25C
Parameter Maximum supply voltage Maximum output current Maximum steady-state output current Allowable power dissipation 1 Operating temperature Storage temperature Symbol VCCmax IO max1 IO max2 Pdmax1 Topr Tstg Independent IC t 0.5 s Conditions Ratings 7.0 1.5 1.0 0.6 -20 to +80 -40 to +150 Unit V A A W C C
Allowable Operating Ranges at Ta = 25C
Parameter Supply voltage Symbol VCC Conditions Ratings 4.2 to 6.5 Unit V
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.
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
63099RM (OT) No. 6213-1/10
0.5
7.6
LB11817 Electrical Characteristics at Ta = 25C, VCC = 5 V
Parameter Symbol ICCO ICC ISL VSLL VSLH IS/S VS/SL VS/SH IH Vh Vdif VHB IHBL Vsat IOL Vlim GC GC I+ I- I+/I- IDSC GFG VFG0 VFGB Vsh N FD FOSC VIDL IIDL VID VID VP TSD TSD Ip = -5 mA 1.39 150 1.0 25 1.55 180 40 1.71 IO = 2 mA 2.2 2.5 50 1041.5 1.1 1.1 0.4 10 VCC - 1.0 MHz MHz V A V mV V C C * * * * 48 10 2.8 9 -9 0.8 14 -14 1.0 0.27 -9 0.3 -7 IH = 5 mA S/S = 5 V IO = 0.5 A sink+source 0.45 1.5 50 0.5 0.8 0 3.5 Conditions S/S = 5 V (standby mode) S/S = 0 V (normal operation) VSL = 0 V 0 3.5 150 17 Ratings min typ max 10 25 10 1.0 VCC 230 0.8 VCC 10 VCC - 1.0 200 1.1 10 0.67 1.0 0.33 -5 1 19 -19 1.2 1.0 A dB mV V mV * * * Unit A mA A V V A V V A V mVp-p V A V mA V dB dB A A Note
Current drain SL bias current SL low-level input voltage SL high-level input voltage S/S bias current S/S low voltage S/S high voltage Hall amplifier input bias current Common-mode input voltage range Differential input voltage range Hall bias output voltage Hall bias leakage current Output saturation voltage Output leakage current Current limiter Control amplifier voltage gain Voltage gain inter-phase difference V/I conversion source current V/I conversion sink current V/I conversion current ratio DSC buffer input current FG amplifier voltage gain FG offset amplifier input FG amplifier internal reference voltage FG Schmitt hysteresis Speed discriminator counts Discriminator operating frequency Oscillator frequency range Index output low-level voltage Index output leakage current Index amplifier common-mode input voltage range Index input hysteresis Boost voltage Thermal protection circuit operating temperature Hysteresis
Note: * Items shown to be design target values are not measured.
No. 6213-2/10
LB11817 Pin Assignment
1 2 3 4 5 6 7 8 9
TC ID S/S SL CLK FC DO GND VCC
VR 36 I- 35 I+ 34 FG+ 33 FG- 32 FGO 31 HB 30 W- 29
LB11817
W+ 28 V- 27 V+ 26 U- 25 U+ 24 NC 23 NC 22 NC 21 UOUT 20 VOUT 19
10 VP 11 RF 12 D2 13 B2 14 B1 15 D1 16 NC 17 WOUT 18 PGND
Top view
No. 6213-3/10
LB11817
Pdmax -- Ta
1.2
1.0
Allowable power dissipation, Pdmax (W)
0.8
Independent IC
0.6
0.4
0.2
0 -20 0 20 40 60 80 100
Ambient temperature, Ta (C)
No. 6213-4/10
LB11817 Truth Table
Source sink 1 2 3 4 5 6 V W V U W U W V U V U W Hall input U H L L L H H V H H H L L L W L L H H H L
Index Delay Pulse Timing Chart
+
1
HYS
1
-
TC T1
ID T2
FG+ VR
T1 1.363 ms ........... SL = H T1 1.635 ms ........... SL = L
T2
1.25 x T1 VVR (VVR is the pin voltage)
No. 6213-5/10
LB11817 Pin Functions
Pin No. Symbol Pin voltage Function Equivalent circuit
1
TC
* Connection for the external capacitor used to adjust the index timing.
1
2
2 ID L: 0.4 Vmax H: 4.5 Vmin * Index output
VCC
3
S/S
L: 1.0 Vmax H: 3.5 Vmin
* Start/stop control. This is an active-low input.
3
VCC
4
SL
L: 1.0 Vmax H: 3.5 Vmin
* Speed switching input
4
VCC
L: 0.5 Vmax H: VCC - 1.0 Vmin * Reference clock input. The threshold voltage is 1.25 V. At 1 MHz, the LB11817 supports speeds of 300 and 360 rpm.
5
CLK
2 k
5
6
FC
* Frequency characteristics correction. Oscillation in the current control closedloop circuit can be stopped by inserting a capacitor between this pin and ground.
VCC
7
DO
* Speed discriminator
7
Continued on next page. No. 6213-6/10
LB11817
Continued from preceding page.
Pin No. Symbol Pin voltage Function Equivalent circuit
8
GND
* Ground This pin and pin 34 must all be connected to the frame ground.
9
VCC
4.2 to 6.5 V
* Supply voltage This voltage must be stabilized so that ripple and noise do not enter the IC.
10
VP
VCC + 1.55 Vtyp (Ip = -5 mA)
* Boosted voltage output Used as the output transistor pre-driver power supply. This boosted voltage is used when a low saturation output is provided. In all other cases this pin will be at the VCC potential. * Output current detection An RF resistor inserted between this pin and VCC converts the output current to the voltage used for output current detection. The current limiter circuit operates by detecting the voltage on this pin.
11
RF
VCC
12 15
D2 D1
* Connections for the two diodes used by the voltage boost function.
12
15
VP
VCC
10
13 14 B2 B1 * Boost function switching circuit outputs 1 and 2
10
13
10 10
14
11
17 19 20
WOUT VOUT UOUT
* W-phase output * V-phase output * U-phase output
18
17 19 20
Continued on next page.
No. 6213-7/10
LB11817
Continued from preceding page.
Pin No. Symbol Pin voltage Function Equivalent circuit
18
PGND
* Output transistor ground
24
24 25 26 27 28 29 UIN+ UIN- VIN+ VIN- WIN+ WIN-
Vcc 1k
26
* U-phase Hall device inputs 1.5 Vmin VCC - 1.0 Vmax * V-phase Hall device inputs * W-phase Hall device inputs
28
Vcc
25 27 29
1k
30
HB
0.8 Vtyp (IH = 5 mA)
* Negative potential that provides Hall device bias current In the stopped state, this pin is set to the open state to cut off the Hall device bias current.
30
Vcc 3 k
* FG amplifier output 31 32 33 FGO FG+ FG- * FG amplifier minus input 2.5 Vtyp * FG amplifier plus input A 2.5 V reference voltage is generated internally by the IC.
32
750 k VCC
Vcc
31
2. 5V
33
Vcc 200
34
34 35 I+ I- * Index inputs
Vcc
35
200
36
VR
* Index timing adjustment voltage input
36
No. 6213-8/10
LB11817 Block Diagram Note that the values of the external components shown here are reference values and are not guaranteed to be appropriate in a given application.
VCC
VCC 100 k 0.1F 0.1 F
0.1 F 0.1 F
I+
IVR TC ID VP D1 D2 B2 B1 1 F VCC RF
Voltage boost circuit
25 mV
Timing adjustment
VCC U+ UV+
Matrix
Hall amplifier
U
U
Amplitude control
U
VW+ W-
V
V
V
W
W
W
PG HB
Hall bias
TSD
FC
Reference voltage
0.1F
S/S
Chip select
Control amplifier and current limiter
SL
300/360 rpm selection
CLK
OSC
Divider
Speed discriminator
Vref
FG+
FG pattern
FG0.47 F FGO
3 k
FG amplifier (x 250) V/I
DO 50 mV
GND
No. 6213-9/10
LB11817
Specifications of any and all SANYO products described or contained herein stipulate the performance, characteristics, and functions of the described products in the independent state, and are not guarantees of the performance, characteristics, and functions of the described products as mounted in the customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent device, the customer should always evaluate and test devices mounted in the customer's products or equipment. SANYO Electric Co., Ltd. strives to supply high-quality high-reliability products. However, any and all semiconductor products fail with some probability. It is possible that these probabilistic failures could give rise to accidents or events that could endanger human lives, that could give rise to smoke or fire, or that could cause damage to other property. When designing equipment, adopt safety measures so that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective circuits and error prevention circuits for safe design, redundant design, and structural design. In the event that any or all SANYO products (including technical data, services) described or contained herein are controlled under any of applicable local export control laws and regulations, such products must not be exported without obtaining the export license from the authorities concerned in accordance with the above law. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, or any information storage or retrieval system, or otherwise, without the prior written permission of SANYO Electric Co., Ltd. Any and all information described or contained herein are subject to change without notice due to product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification" for the SANYO product that you intend to use. 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.
This catalog provides information as of June, 1999. Specifications and information herein are subject to change without notice. PS No.6213-10/10

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