LB1947

Ordering number : ENN*6192 LB1947 Monolithic Digital IC LB1947 PWM Current Control Type DC Motor Driver Preliminary Features • PWM current control (fixed OFF time) • Selectable current decay pattern (FAST, SLOW, and MIX DECAY modes) • Simultaneous ON prevention function (feedthrough current prevention) • Built-in thermal shutdown circuit • Built-in noise canceler Package Dimensions unit: mm 3249-SIP13HJ [LB1947] 25.6 C0.7 φ 3.4 φ 2.0 2.4 (10.0) 2.0min 1 (0.8) 2.0 0.5 1.15 13 3.5 (13.9) 12.2 (12.8) 16.4max 0.4 1.2 Specifications Absolute Maximum Ratings at Ta = 25°C Parameter Maximum motor supply voltage Output peak current Output continuous current Logic supply voltage Logic input voltage range Emitter output voltage Reference voltage Operating temperature Storage temperature Allowable power dissipation Symbol VBB max I OPEAK I O max VCC max VIN VE max VREF Topr Tstg Pd max Conditions tw ≤ 20 µs Ratings 50 2.25 2.0 7.0 –0.3 to VCC 1.1 –0.3 to VCC –20 to +85 –55 to +150 1.6 SANYO : SIP13HJ Ta = 25°C Unit V A A V V V V °C °C W Allowable Operating Ranges at Ta = 25°C Parameter Motor supply voltage Logic supply voltage Reference voltage Symbol VBB VCC VREF Conditions Ratings 10 to 45 4.75 to 5.25 0 to (Vcc–2) Unit V V 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 80699RM(KI) No. 6192-1/7 φ 3.0min LB1947 Electrical Characteristics at Ta = 25°C, VBB = 42V, VCC = 5V, VREF = 1.0V Parameter Output stage supply current Symbol I BB ON I BB BR I BB OFF I BBwt V osat 1 V osat 2 V osat 3 V osat 4 I o1(leak) I o2(leak) V SUS I CC ON I CC BR I CC OFF I CCwt V INH V INL I INH I INL VE VEH25 VEL25 VEH25 VEL25 VEH25 VEL25 I ref I CR V MDH V MDM V MDL I MDH I MDL T SD Conditions No-load state No-load state No-load state No-load state Io = +1.0A sink Io = +2.0A sink Io = –1.0A source Io = –2.0A source VO = VBB sink VO = 0V source L = 3.9 mH Io = 2.0A *1 IN1 : High, IN2 : Low, ST = High IN1 : Low, IN2 : High, ST = High IN1 : Low, IN2 : Low, ST = High ST : Low min 0.4 0.2 0.2 Ratings typ 0.6 0.4 0.4 1.2 1.6 1.8 2.1 –50 50 11 11 11 1.0 2 60 6 0 0.970 0.483 0.385 0.190 0.190 0.092 –0.5 –1.56 Vcc–0.3 0.3Vcc –1.0 –5.0 170 max 1.0 0.8 0.8 0.1 1.5 1.9 2.2 2.4 50 Unit mA mA mA mA V V V V µA µA V mA mA mA mA V V µA µA V V V V V V V µA mA V V V µA µA °C Output Block Output saturation voltage 1 2 3 4 Output leak current Output sustain voltage Logic supply current 16 16 16 2 21 21 21 3.0 0.8 120 13 1.1 1.030 0.513 0.410 0.210 0.210 0.108 0.5 –1.04 Vcc–1.0 0.4 1.0 Input voltage Input current Sensing voltage Sensing voltage 25H Sensing voltage 25L Sensing voltage 10H Sensing voltage 10L Sensing voltage 05H Sensing voltage 05L Reference current CR pin current MD pin voltage V IN = 5V V IN = 0.8V VI = High, VREF = 2.5V VI = Low, VREF = 2.5V VI = High, VREF = 1.0V VI = Low, VREF = 1.0V VI = High, VREF = 0.5V VI = Low, VREF = 0.5V Vref = 1.0V CR = 1.0V 90 10 1.0 0.5 0.4 0.2 0.2 0.1 –1.3 Logic Block MD pin current Thermal shutdown temperature *1: Guaranteed design MD = (Vcc–0.5)V, CR = 1.0V MD = 0.4V, CR = 2.0V Truth Table IN 1 H H H H H H H H H H H H L L L L L L X IN 2 L L L L L L H H H H H H H H H H H L X ST H H H H H H H H H H H H H H H H H H L or OPEN VI H H H L L L H H H L L L H H L L X X X MD L M H L M H L M H L M H L M L M H X X OUT H H H H H H L L L L L L L L L L L OFF OFF OUT– L L L L L L H H H H H H L L L L L OFF OFF Operating mode Forward, 2/5 times, FAST Forward, 2/5 times, MIX Forward, 2/5 times, SLOW Forward, 1/5 times, FAST Forward, 1/5 times, MIX Forward, 1/5 times, SLOW Reverse, 2/5 times, FAST Reverse, 2/5 times, MIX Reverse, 2/5 times, SLOW Reverse, 1/5 times, FAST Reverse, 1/5 times, MIX Reverse, 1/5 times, SLOW Brake, 2/5 times, FAST Brake, 2/5 times, MIX Brake, 1/5 times, FAST Brake, 1/5 times, MIX Brake, no current limiting Output OFF Standby mode (circuit OFF) Except for MD pin, Low at input OPEN MD M: determined by external voltage No. 6192-2/7 LB1947 Pin Description Pin number 1 3 2 4 5 8 9 Pin name OUTA– OUTA E VI ST IN1 IN2 Equivalent circuit Output pin Sense voltage control pin VI High : sense voltage is 2/5 of VREF Low : sense voltage is 1/5 of VREF ST High : circuit operation ON Low : standby mode IN1 High : rotation mode Low : brake mode IN2 High : reverse mode Low : forward mode Motor power supply voltage Logic power supply voltage Output current setting reference pin Setting range: 0 to (Vcc–2V) Pin function VCC 100µA 50kΩ 4 VI 40kΩ A12583 6 7 10 VBB VCC VREF VCC 5µA 3s 1s 300Ω 10 VREF A12584 11 12 CR MD 13 GND Oscillator with self-excitation Current attenuation switching pin Low : FAST DECAY High : SLOW DECAY M : MIX DECAY M is set by external power supply voltage. Range : 1.1 to 4.0V Ground pin No. 6192-3/7 LB1947 Block Diagram OUTA 3 1 OUTA– 6 VBB MD 12 IN1 I N2 ST VI 8 9 5 4 7 VCC Control logic circuit Thermal shutdown circuit UVLO VREF 10 Current select circuit One-shot multiblanking time GND 13 11 CR 2 E Pin Assignment LB1947 1 2 3 4 5 6 7 8 9 10 11 12 13 VCC OUTA– IN2 E OUTA VI IN1 VREF GND ST VBB CR MD No. 6192-4/7 LB1947 Sample Application Circuits 1. Forward/reverse motor with current limiter 24V OUT * Schottky barrier type for external diodes. 3 M OUT– 1 6 VBB MD 12 IN1 IN2 ST VI 8 9 5 4 Control logic circuit VCC 7 5V VREF 10 Current select circuit GND 13 Thermal shutdown circuit UVLO One-shot multiblanking time RE CR 11 2 E Limiter current setting method I = VREF/ (5 × RE) Mode Reverse Forward Brake Output OFF Standby mode IN1 H H L L – IN2 H L H L – ST H H H H L OUT L H L OFF OFF OUT– H L L OFF OFF No. 6192-5/7 LB1947 2. Forward/reverse motor 24V OUT * Schottky barrier type for external diodes. 3 M OUT– 1 6 VBB MD 12 IN1 IN2 ST VI 8 9 5 4 Control logic circuit VCC 7 5V VREF 10 Current select circuit GND 13 Thermal shutdown circuit UVLO One-shot multiblanking time CR 11 2 E IN1 H H L L – IN2 H L H L – ST H H H H L OUT L H L OFF OFF OUT– H L L OFF OFF Mode Reverse Forward Brake Output OFF Standby mode No. 6192-6/7 LB1947 3. PWM current control forward/reverse motor (MIX DECAY) 24V OUT * Schottky barrier type for external diodes. 3 M OUT– 1 6 VBB MD 12 IN1 IN2 ST VI 8 9 5 4 Control logic circuit VCC 7 5V VREF 10 Current select circuit GND 13 Thermal shutdown circuit UVLO One-shot multiblanking time RE CR 11 2 E 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 August, 1999. Specifications and information herein are subject to change without notice. PS No. 6192-7/7