CS3720 CHERRY | Alldatasheet

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Technical content

Features

Ð OUTPUT DRIVER OUTPUT DRIVER Overvoltage Protection Transient Protection VREF Over Current Protection Q4 Q2 Over Current Protection n High Current (2A typ) Output n TTL compatible DIRECTION Control n Fault Protection Overvoltage Load Dump Protection to 74V Package Options

7 Lead Power SIP

Description

The CS3720 is high current (2A typ) bidirectional DC motor driver. The H-bridge output stage consists of two pairs of power NPN transis- tors, each with a V SAT=2.3V at IOUT=2A (typ). The three TTL compatible inputs, ENABLE1, ENABLE2, and DIREC- TION control the output stage. When ENABLE1 is low and ENABLE2 is high, DIRECTION determines which way current flows through the motor coil. Any other combination of ENABLE set- tings disables the outputs. The CS3720 is protected against overvoltage fault conditions. If a fault condition is detected, the IC shuts down. CS3720

2 ENABLE1

4 DIRECTION

6 COIL+

8 Gnd

10 COILÐ

14 ENABLE2

Lead Temperature Soldering

7 Lead TO-220 7 Lead D2PAK

1 ENABLE1

2 DIRECTION

3 COIL+

4 Gnd

6 COILÐ

7 ENABLE2

Rev. 5/4/99 Cherry Semiconductor Corporation

2000 South County Trail, East Greenwich, RI 02818

Tel: (401)885-3600 Fax: (401)885-5786 Email: info@cherry-semi.com Web Site: www.cherry-semi.com A Company ¨

active only when ENABLE1 is low and ENABLE2 is high. of ENABLE settings, the outputs are off. Table 1. Logical Control Diagram Electrical Characteristics: 5.5V ² VCC ² 17V; Ð40¡C ² TJ ² +150¡C; Ð40¡C ² TC ² +105¡C; Ð40¡C ² TA ² 105¡C; unless otherwise specified.

15 Lead 7 Lead 7 Lead

Figure 1. Delay Times for ENABLE and COIL Note: A heatsink is required for 2A operation.

CS3720XT7 7 Lead TO-220 Straight CS3720XTVA7 7 Lead TO-220 Vertical CS3720XTHA7 7 Lead TO-220 Horizontal CS3720XM7 7 Lead Power SIP Straight CS3720XDPS7 7 Lead D 2PAK Short-Leaded CS3720XDPSR7 7 Lead D 2PAK Short-Leaded (tape & reel) 7L 7L 7L Thermal Data D 2PAK TO-220 Power SIP RQJC typ 2.1 2.1 2.1 ûC/W RQJA typ 10-50* 50 35 ûC/W *Depending on thermal properties of substrate. RQJA=RQJC +RQCA. Package Specification

Ordering Information

Rev. 5/4/99 CS3720 © 1999 Cherry Semiconductor Corporation Cherry Semiconductor Corporation reserves the right to make changes to the specifications without notice. Please contact Cherry Semiconductor Corporation for the latest available information. PACKAGE DIMENSIONS IN mm (INCHES)

7 Lead TO-220 (T) Straight

2.87 (.113) 2.62 (.103) 9.78 (.385) 10.54 (.415) 1.40 (.055) 1.14 (.045) 0.64 (.025) 0.38 (.015) 0.56 (.022) 0.36 (.014) 1.40 (.055) 1.14 (.045) 4.83 (.190) 4.06 (.160) 14.22 (.560) 13.72 (.540) 0.94 (.037) 0.58 (.023) 7.75 (.305) 7.49 (.295) 2.92 (.115) 2.29 (.090) 3.71 (.146) 14.22 (.560) 6.55 (.258) 5.94 (.234)

7 Lead Power SIP (M) Straight

20.02 (.788) 15.24 (.600) 17.50 (.689) 10.69 (.421) 0.79 (.031) MAX. 2.54 (.100)

7 Lead D2PAK (DPS)* Short-Leaded

1.98 (.078) 1.47 (.058) 14.71 (.579) 13.69 (.539) 4.57 (.180) 4.31 (.170) 1.40 (.055) 1.14 (.045) 2.79 (.110) 2.54 (.100) TERMINAL 8 7.75 (.305) REF 6.50 (.256) REF 10.31 (.406) 10.05 (.396) 1.27 (.050) REF 1.68 (.066) 1.40 (.055) .254 (.010) REF0.91 (.036) 0.66 (.026) 8.53 (.336) 8.28 (.326) 0.10 (.004) 0.00 (.000) *CHERRY SEMICONDUCTOR SHORT-LEADED FOOTPRINT