BD61241FV-GE2 ROHM

Datasheet DC Brushless Fan Motor Drivers Multifunction Single-phase Full-wave Fan Motor Driver BD61241FV General Description Key Specifications BD61241FV is a 1chip driver that is composed of Operating Voltage Range: 5.5V to 16V H-bridge power DMOS FET. The pin is compatible with Operating Temperature Range: -40C to +105C BD61240FV(rotation speed pulse signal output). Output Voltage (Total): 0.2V(Typ) at 0.2A Features Package W(Typ) x D(Typ) x H(Max) SSOP Small Package 5.00mm x 6.40mm x 1.35mm Driver Including Power DMOS FET Speed Controllable by DC / PWM Input I/O Duty Slope Adjust PWM Soft Switching Current Limit Start Duty Assist Lock Protection and Automatic Restart Quick Start Lock alarm signal (AL) output Applications Fan motors for general consumer equipment of desktop PC, Projector, etc. SSOP-B16 Typical Application Circuits 1 16 1 16 SIG AL GND SIG AL GND 2 H- SLOPE 15 2 H- SLOPE 15 H H 3 H+ SOFT 14 3 H+ SOFT 14 4 13 4 13 LA LZ LA LZ DC PWM 5 12 5 12 PWM MIN PWM MIN 6 11 6 11 CS REF CS REF 7 10 7 10 OUT2 VCC OUT2 VCC 8 RNF OUT1 9 8 RNF OUT1 9 M M Figure 1. Application of PWM Input Figure 2. Application of DC Voltage Input Product structure : Silicon monolithic integrated circuit This product has no designed protection against radioactive rays www.rohm.com TSZ02201-0H1H0B101570-1-2 2015 ROHM Co., Ltd. All rights reserved. 1/27 16.Oct.2015 Rev.001 TSZ2211114001 DatasheetDatasheet BD61241FV Pin Configuration Block Diagram (TOP VIEW) AL SIGNAL GND AL 1 16 GND 1 16 OSC TSD OUTPUT H- 2 15 SLOPE H- SLOPE 2 15 - H+ 3 14 SOFT COMP H+ SOFT 3 + 14 LA 4 13 LZ INSIDE REG LA LZ 4 13 PWM 5 12 MIN INSIDE CONTROL REG LOGIC MIN CS 6 11 REF 5 FILTER 12 PWM VCC OUT2 7 10 VCC CS REFE- REF 6 - 11 RENCE COMP PRE- V CL RNF 8 9 OUT1 DRIVER + VVCC OUT2 CC 7 10 RNF OUT1 8 9 Pin Description Pin No. Pin Name Function 1 AL Lock alarm signal output terminal 2 H Hall input terminal 3 H+ Hall + input terminal Lead angle function select 4 LA terminal 5 PWM PWM input duty terminal 6 CS Output current detecting terminal 7 OUT2 Motor output terminal 2 Output current detecting resistor 8 RNF connecting terminal (motor ground) 9 OUT1 Motor output terminal 1 10 VCC Power supply terminal 11 REF Reference voltage output terminal Minimum output duty setting 12 MIN terminal 13 LZ Recirculate period setting terminal 14 SOFT Soft switching setting terminal 15 SLOPE I/O duty slope setting terminal 16 GND Ground terminal (signal ground) I/O Truth Table Hall Input Driver Output H+ H OUT1 OUT2 H L L H L H H L H High, L Low Motor state AL Rotating L Locking Hi-Z AL output is open-drain type. www.rohm.com 2/27 TSZ02201-0H1H0B101570-1-2 2015 ROHM Co., Ltd. All rights reserved. 16.Oct.2015 Rev.001 TSZ2211115001