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Ordering number :ENN*6212A
Monolithic Digital IC
LB11987
Refrigerator Fan Motor Driver
Preliminary Functions
* Three-phase full-wave current linear drive * Built-in current limiter circuit * Built-in saturation prevention circuits in both the upper and lower sides of the output stage. * FG amplifier * Thermal shutdown circuit
Package Dimensions
unit: mm 3007A-DIP18
[LB11987]
18 10
7.62 6.4
1
24.2
9
1.94 2.54
0.5
1.2
Specifications
Absolute Maximum Ratings at Ta = 25C
Parameter Maximum supply voltage Maximum output current Allowable power dissipation Operating temperature Storage temperature Symbol VCCmax VSmax IO max Pdmax Topr Tstg Independent IC Conditions Ratings 24 24 1.3 1.13 -30 to +75 -55 to +150 Unit V V A W C C
Allowable Operating Ranges at Ta = 25C
Parameter Supply voltage Hall input amplitude Symbol VS VCC VHALL Between Hall inputs Conditions Ratings 5 to 22 7 to 22 30 to 80 Unit V mV 0-P
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
70999RM (OT) No. 6212-1/6
3.3
3.85max
3.25
SANYO: DIP18
0.25
LB11987 Electrical Characteristics at Ta = 25C, VCC = 12 V, Vs = 12V
Parameter VCC current drain [Output] VOsat1 Output saturation voltage VOsat2 Output leakage current [Hall Amplifier] Input offset voltage Input bias current Common-mode input voltage [Current Limiter] LIM pin current limit level [Saturation] Saturation prevention circuit lower side voltage setting [FG Amplifier] Upper side output saturation voltage Lower side output saturation voltage Hysteresis TSD operating temperature Vsatu (SH) Vsatd (SH) Vhys T-TSD Design target value* 23 170 11.8 0.3 V V mV C VOsat (DET) RL = 560 (Y), Rf = 0.5 , The voltage between each output and the corresponding Rf. 0.28 V ILIM Rf = 0.5 , With the Hall input logic states fixed (U, V, W = high, high, low) 1 A Voff (HALL) Ib (HALL) Vcm (HALL) VIN, WIN 3 -6 1 +6 3 VCC - 3 mV A V IOleak IO = 500 mA, Rf = 0.5 , Sink + Source (Saturation prevention function included) IO = 1.0 A, Rf = 0.5 , Sink + Source (Saturation prevention function included) 2.1 2.6 2.6 3.5 1.0 V V mA Symbol ICC RL = 560 (Y) Conditions Ratings min typ 15 max 24 Unit mA
Note *: Items shown to be design target values in the conditions column are not measured.
No. 6212-2/6
LB11987 Truth Table and Control Functions
Source sink 1 2 3 4 5 6 W V W U V U V W U W U V Hall input U H H H L L L V H L L L H H W L L H H H L Note: Since this drive technique is a 180 current application scheme, the phases other than the sink and the source phases will not turn off. Note: For the Hall inputs, the input high state is defined to be the state where the (+) input is at least 0.01 V higher than the corresponding (-) input, and the input low state is defined to be the state where the (+) input is at least 0.01 V lower than the corresponding (-) input.
Pin Functions
Pin No. 5 3 6 7, 8 9, 10 11, 12 13 14 Pin GND FG-OUT FC UIN+, UIN- VIN+, VIN- WIN+, WIN- VCC VS Function Ground for circuits other than the output transistors. Note that the Rf pin will be at the lowest potential of the output transistors. This is the FG amplifier output pin. Internally, it is a resistive load. (Pull up) Corrects the frequency characteristics of the saturation prevention circuit loop. U-phase Hall input. Logic high refers to the state where IN+ > IN-. V-phase Hall input. Logic high refers to the state where IN+ > IN-. W-phase Hall input. Logic high refers to the state where IN+ > IN-. Power supply provided to all IC internal circuits other than the output block. This voltage must be stabilized so that ripple and noise do not enter the IC. Output block power supply Used for output current detection. The current limiter circuit operates using the resistor (Rf) connected between this pin and ground. Note that the lower side saturation prevention circuit operates according to the voltage that appears on this pin. Since the over-saturation level is set by this voltage, the level of the lower side saturation prevention circuit may be degraded in the large current region if the value of Rf is made extremely small. U-phase Hall output V-phase Hall output W-phase Hall output (These pins include internal spark killer diodes.)
15
Rf
17 18 1
UOUT VOUT WOUT
Pin Assignment
11 WI N+
17 UOUT
18 VOUT
12 WI N-
LB11987
WOUT 1 NC 2 FGOUT 3 NC 4 GND 5 FC 6 UI N+ 7 UI N- 8 V I N+ 9
10 V I N-
13 VCC
16 NC
14 VS
15 RF
Top view
No. 6212-3/6
LB11987 Equivalent Circuit Diagrams
Pin Equivalent circuit diagrams
UIN (+) UIN (-) VIN (+) VIN (-) WIN (+) WIN (-)
Input (+) 200 100 A 200
Input (-)
Vs Output
Vcc 150 A Lower side oversaturation prevention circuit input block
U - OUT V - OUT W - OUT RF VS
200 30 k RF
Vcc
FC
10 k FC
Vcc
Vcc
10 k
FGOUT
5 k 300 FGOUT
No. 6212-4/6
0.1 FC VS
Block Diagram
VCC
UIN+
UIN-
UOUT VOUT WOUT
VIN+
Logarithmic conversion and differential distribution
Synthesized output logarithmic compression block
VIN- WIN+
Hall input synthesis block (linear matrix)
WIN-
0.1 x 3
RF
LB11987
0.5
Differential distribution Upper side saturation prevention control Drive distribution circuit and lower side saturation prevention control
Feedback amplifier
VCC
LIMREF
5K
Current limiter
VCC
Bandgap 1.2V
TSD
Reference voltage
UIN+ UIN-
FG amplifier
Schmitt amplifier
13.6k GND
30k
FGOUT
Units (capacitance: F, resistance: )
No. 6212-5/6
LB11987
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 July, 1999. Specifications and information herein are subject to change without notice. PS No.6212-6/6

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