Datasheet DC Brush Motor Drivers (36V max.) BD623xxx Series ●General Description These H-bridge drivers are full bridge drivers for brush motor applications. Each IC can operate at a wide range of power supply voltages (from 6V to 32V), with output currents of up to 2A. MOS transistors in the output stage allow PWM speed control. The integrated VREF voltage control function allows direct replacement of deprecated motor driver ICs. These highly efficient H-bridge driver ICs facilitate low-power consumption design. ●Key Specifications ■ Supply Voltage Range: ■ Maximum Output Current: ■ Output ON resistance: ■ PWM Input frequency range: ■ Standby current: ■ Operating temperature range: ●Packages SOP8 HSOP25 HSOP-M28 HRP7 ●Features Built-in, selectable one channel or two channels configuration VREF voltage setting pin enables PWM duty control Cross-conduction prevention circuit Four protection circuits provided: OCP, OVP, TSD and UVLO ●Applications VTR; CD/DVD players; audio-visual equipment; optical disc drives; PC peripherals; OA equipments 36V(Max.) 0.5A / 1.0A / 2.0A 1.5Ω / 1.5Ω / 1.0Ω 20 to 100kHz 0μA (Typ.) -40 to 85℃ (Typ.) (Typ.) (Max.) 5.00mm x 6.20mm x 1.71mm 13.60mm x 7.80mm x 2.11mm 18.50mm x 9.90mm x 2.41mm 9.395mm x 10.540mm x 2.005mm HRP7 (Pd=1.60W) SOP8 (Pd=0.69W) HSOP25( (Pd=1.45W) HSOP-M28 (Pd=2.20W) *Pd : Mounted on a 70mm x 70mm x 1.6mm glass-epoxy ●Ordering Information B D 6 2 3 x x x x - Package F : SOP8 FP : HSOP25 FM : HSOP-M28 HFP : HRP7 Part Number xx Packaging and forming specification E2: Embossed taping (SOP8/HSOP25/HSOP-M28) TR: Embossed taping (HRP7) ●Lineup Rating voltage (Max.) Channels Output current (Max.) 0.5A 1ch 36V 1.0A 2.0A 2ch 1.0A 2.0A ○Product structure：Silicon monolithic integrated circuit .www.rohm.com © 2012 ROHM Co., Ltd. All rights reserved. TSZ22111・14・001 Package Ordeble Part Number SOP8 Reel of 2500 BD6230F-E2 HRP7 Reel of 2000 BD6231HFP-TR SOP8 Reel of 2500 BD6231F-E2 HRP7 Reel of 2000 BD6232HFP-TR HSOP25 Reel of 2000 BD6232FP-E2 HSOP25 Reel of 2000 BD6236FP-E2 HSOP-M28 Reel of 1500 BD6236FM-E2 HSOP-M28 Reel of 1500 BD6237FM-E2 ○This product is not designed for protection against radioactive rays 1/22 TSZ02201-0P2P0B300090-1-2 25.Dec.2012 Rev.002 Datasheet BD623xxx Series ●Block Diagrams / Pin Configurations / Pin Descriptions BD6230F / BD6231F VREF FIN 6 DUTY Table 1 BD6230F/BD6231F PROTECT 3 VCC 2 VCC 4 CTRL RIN 5 8 1 7 OUT1 OUT2 GND Fig.1 BD6230F / BD6231F OUT1 GND VCC OUT2 VCC VREF FIN Fig.2 Pin Name 1 OUT1 Driver output 2 VCC Power supply 3 VCC Power supply 4 FIN Control input (forward) 5 RIN Control input (reverse) 6 VREF Duty setting pin 7 OUT2 Driver output 8 GND Ground Note: Use all VCC pin by the same voltage. RIN SOP8 (TOP VIEW) BD6231HFP / BD6232HFP VREF 1 DUTY Table 2 BD6231HFP/BD6232HFP PROTECT 7 FIN 3 RIN 5 Function VCC CTRL 4 FIN 2 6 GND OUT1 OUT2 GND Fig.3 BD6231HFP / BD6232HFP Pin Name Function 1 VREF Duty setting pin 2 OUT1 Driver output 3 FIN 4 GND Ground 5 RIN Control input (reverse) 6 OUT2 Driver output 7 VCC Power supply FIN GND Ground Control input (forward) VCC OUT2 RIN GND FIN OUT1 VREF Fig.4 HRP7 (TOP VIEW) BD6232FP Table 3 BD6232FP VREF 17 DUTY PROTECT 21 22 VCC VCC 23 FIN 20 CTRL Pin Name 1,2 OUT1 Driver output Function 6 GND Small signal ground 7,8 RNF Power stage ground 12,13 OUT2 Driver output 17 VREF Duty setting pin 19 RIN Control input (reverse) 20 FIN Control input (forward) 21 VCC Power supply 22,23 VCC Power supply FIN GND Ground RIN 19 7 RNF 8 6 FIN 1 2 12 13 GND GND OUT1 OUT2 Fig.5 BD6232FP OUT1 OUT1 NC NC NC GND GND RNF RNF NC NC NC OUT2 OUT2 NC NC VCC VCC VCC FIN GND Note: All pins not described above are NC pins. Note: Use all VCC pin by the same voltage. RIN NC VREF NC NC NC Fig.6 HSOP25 (TOP VIEW) www.rohm.com © 2012 ROHM Co., Ltd. All rights reserved. TSZ22111･15･001 2/22 TSZ02201-0P2P0B300090-1-2 25.Dec.2012 Rev.002 Datasheet BD623xxx Series ●Block Diagrams / Pin Configurations / Pin Descriptions - Continued BD6236FP Table 4 BD6236FP VREFA DUTY 9 PROTECT 24 VCC 25 VCC FINA 11 CTRL RINA 10 GND 20 VREFB 21 DUTY 1 OUT1A 6 OUT2A 3 RNFA PROTECT CTRL GND 8 Fig.8 OUT1A 3 RNFA 6 OUT2A 8 GND 9 VREFA 10 RINA Control input (reverse) Driver output Power stage ground Driver output Small signal ground Duty setting pin 11 FINA Control input (forward) VCC 12 VCC Power supply 14 OUT1B 13 VCC Power supply 19 OUT2B 14 OUT1B Driver output 16 RNFB Fig.7 BD6236FP NC GND VREFA RINA FINA VCC VCC 1 VCC FIN GND Function 13 GND OUT1A NC RNFA NC NC OUT2A Name 12 FINB 23 RINB 22 Pin VCC VCC FINB RINB VREFB GND GND OUT2B NC NC RNFB NC OUT1B 16 RNFB 19 OUT2B Power stage ground 20 GND 21 VREFB 22 RINB Control input (reverse) 23 FINB Control input (forward) 24 VCC Power supply 25 VCC Power supply FIN GND Ground Driver output Small signal ground Duty setting pin Note: All pins not described above are NC pins. Note: Use all VCC pin by the same voltage. HSOP25 (TOP VIEW) www.rohm.com © 2012 ROHM Co., Ltd. All rights reserved. TSZ22111･15･001 3/22 TSZ02201-0P2P0B300090-1-2 25.Dec.2012 Rev.002 Datasheet BD623xxx Series ●Block Diagrams / Pin Configurations / Pin Descriptions - Continued BD6236FM Table 5 BD6236FM VREFA DUTY 9 26 VCC 28 VCC FINA 11 CTRL RINA 10 GND 22 VREFB 23 DUTY 1 OUT1A 6 OUT2A 3 RNFA Name Function 1 OUT1A 3 RNFA 6 OUT2A 8 GND 9 VREFA 10 RINA Control input (reverse) 12 VCC 14 VCC 11 FINA Control input (forward) 12 VCC Power supply 15 OUT1B 14 VCC Power supply 20 OUT2B 15 OUT1B Driver output 17 RNFB Driver output Power stage ground Driver output Small signal ground Duty setting pin PROTECT FINB 25 CTRL RINB 24 GND Pin PROTECT 8 FIN GND Fig.9 BD6236FM OUT1A NC RNFA NC NC OUT2A NC GND VCC NC VCC FINB RINB VREFB GND GND 17 RNFB 20 OUT2B Power stage ground 22 GND 23 VREFB 24 RINB Control input (reverse) 25 FINB Control input (forward) 26 VCC Power supply 28 VCC Power supply FIN GND Ground Driver output Small signal ground Duty setting pin Note: All pins not described above are NC pins. Note: Use all VCC pin by the same voltage. GND VREFA RINA FINA VCC NC VCC NC OUT2B NC NC RNFB NC OUT1B Fig.10 HSOP-M28 (TOP VIEW) www.rohm.com © 2012 ROHM Co., Ltd. All rights reserved. TSZ22111･15･001 4/22 TSZ02201-0P2P0B300090-1-2 25.Dec.2012 Rev.002 Datasheet BD623xxx Series ●Block Diagrams / Pin Configurations / Pin Descriptions - Continued BD6237FM Table 6 BD6237FM VREFA DUTY 9 PROTECT 26 VCC 27 Pin Name Function 1,2 OUT1A Driver output 3,4 RNF A Power stage ground 6,7 OUT2A Driver output VCC 28 1 FINA 11 OUT1A 2 CTRL RINA 10 6 OUT2A 8 GND 9 VREFA Small signal ground 7 GND 22 3 RNFA 10 RINA Control input (reverse) VCC 11 FINA Control input (forward) VCC 12 VCC Power supply 13,14 VCC Power supply 15,16 OUT1B Driver output 17,18 RNFB 20,21 OUT2B 22 GND 23 VREFB 24 RINB Control input (reverse) 25 FINB Control input (forward) 26 VCC Power supply 27,28 VCC Power supply FIN GND Ground 4 VREFB 23 DUTY PROTECT 12 13 14 15 FINB 25 OUT1B 16 CTRL RINB 24 20 OUT2B 21 GND 8 17 Duty setting pin RNFB Power stage ground Driver output 18 FIN GND Fig.11 BD6237FM OUT1A OUT1A RNFA RNFA NC OUT2A OUT2A VCC VCC VCC FINB RINB VREFB GND Small signal ground Duty setting pin Note: All pins not described above are NC pins. Note: Use all VCC pin by the same voltage. GND GND VREFA RINA FINA VCC VCC VCC GND OUT2B OUT2B NC RNFB RNFB OUT1B OUT1B Fig.12 HSOP-M28 (TOP VIEW) www.rohm.com © 2012 ROHM Co., Ltd. All rights reserved. TSZ22111･15･001 5/22 TSZ02201-0P2P0B300090-1-2 25.Dec.2012 Rev.002 Datasheet BD623xxx Series ●Absolute Maximum Ratings (Ta=25℃, All voltages are with respect to ground) Parameter Symbol Ratings Unit Supply voltage VCC 36 V Output current IOMAX 0.5 *1 / 1.0 *2 / 2.0 *3 A VIN -0.3 to VCC V Operating temperature TOPR -40 to +85 ℃ Storage temperature TSTG -55 to +150 ℃ Pd 0.687 *4 / 1.6 *5 / 1.45 *6 / 2.2 *7 W Tjmax 150 ℃ All other input pins Power dissipation Junction temperature *1 *2 *3 *4 *5 *6 *7 BD6230. Do not exceed Pd or ASO. BD6231 / BD6236. Do not exceed Pd or ASO. BD6232 / BD6237. Do not exceed Pd or ASO. SOP8 package. Mounted on a 70mm x 70mm x 1.6mm glass-epoxy board. Derate by 5.5mW/℃ above 25℃. HRP7 package. Mounted on a 70mm x 70mm x 1.6mm glass-epoxy board. Derate by 12.8mW/℃ above 25℃. HSOP25 package. Mounted on a 70mm x 70mm x 1.6mm glass-epoxy board. Derate by 11.6mW/℃ above 25℃. HSOP-M28 package. Mounted on a 70mm x 70mm x 1.6mm glass-epoxy board. Derate by 17.6mW/℃ above 25℃. ●Recommended Operating Ratings (Ta=25℃) Parameter Symbol Ratings Unit Supply voltage VCC 6 to 32 V VREF voltage VREF 3 to 32 V ●Electrical Characteristics (Unless otherwise specified, Ta=25℃ and VCC=VREF=24V) Limits Parameter Symbol Unit Min. Min. Min. Conditions Supply current (1ch) ICC 0.8 1.3 2.5 mA Forward / Reverse / Brake Supply current (2ch) ICC 1.3 2.0 3.5 mA Forward / Reverse / Brake Stand-by current ISTBY - 0 10 µA Stand-by Input high voltage VIH 2.0 - - V Input low voltage VIL - - 0.8 V Input bias current IIH 30 50 100 µA VIN=5.0V Output ON resistance *1 RON 1.0 1.5 2.5 Ω IO=0.25A, vertically total Output ON resistance *2 RON 1.0 1.5 2.5 Ω IO=0.5A, vertically total Output ON resistance *3 RON 0.5 1.0 1.5 Ω IO=1.0A, vertically total VREF bias current IVREF -10 0 10 µA VREF=VCC Carrier frequency FPWM 20 25 35 kHz VREF=18V Input frequency range FMAX 20 - 100 kHz FIN / RIN *1 *2 *3 BD6230 BD6231 / BD6236 BD6232 / BD6237 www.rohm.com © 2012 ROHM Co., Ltd. All rights reserved. TSZ22111･15･001 6/22 TSZ02201-0P2P0B300090-1-2 25.Dec.2012 Rev.002 Datasheet BD623xxx Series 2.5 3.0 2.0 2.5 Circuit Current: Icc [mA] Circuit Current: Icc [mA] ●Typical Performance Curves (Reference data) 1.5 85°C 25°C -40°C 1.0 0.5 2.0 85°C 25°C -40°C 1.5 1.0 6 12 18 24 30 36 6 12 Supply Voltage: Vcc [V] 24 30 36 Supply Voltage: Vcc [V] Fig.13 Supply current (1ch) Fig.14 Supply current (2ch) 1.0 Input Bias Current: IIH [mA] _ 1.5 Internal Logic: H/L [-] _ 18 1.0 -40°C 25°C 85°C 0.5 -40°C 25°C 85°C 0.0 -0.5 85°C 25°C -40°C 0.8 0.6 0.4 0.2 0.0 0.8 1.2 1.6 2 0 Input Voltage: VIN [V] Fig.15 12 18 24 30 36 Input Voltage: VIN [V] Input threshold voltage www.rohm.com © 2012 ROHM Co., Ltd. All rights reserved. TSZ22111･15･001 6 Fig.16 Input bias current 7/22 TSZ02201-0P2P0B300090-1-2 25.Dec.2012 Rev.002 Datasheet BD623xxx Series ●Typical Performance Curves (Reference data) - Continued 1.0 -40°C 25°C 85°C Switching Duty: D [Ton/T] _ Input Bias Current: IVREF [µA] 10 5 0 -5 -10 0.8 0.6 0.4 -40°C 25°C 85°C 0.2 0.0 0 6 12 18 24 30 36 0 VREF input bias current 40 0.6 0.8 1 Fig.18 VREF - DUTY (VCC=24V) 9 85°C 25°C -40°C Internal signal: Release [V] _ Oscillation Frequency: FPWM [kHz] 0.4 Input Voltage: VREF / VCC [V] Input Voltage: VREF [V] Fig.17 0.2 30 20 10 85°C 25°C -40°C 6 3 0 6 12 18 24 30 36 4.5 Supply Voltage: VCC [V] 5.5 6 Supply Voltage: VCC [V] Fig.19 VCC - Carrier frequency www.rohm.com © 2012 ROHM Co., Ltd. All rights reserved. TSZ22111･15･001 5 Fig.20 8/22 Under voltage lock out TSZ02201-0P2P0B300090-1-2 25.Dec.2012 Rev.002 Datasheet BD623xxx Series ●Typical Performance Curves (Reference data) - Continued 1.5 36 Internal Logic: H/L [-] Internal signal: Release [V] 48 -40°C 25°C 85°C 24 1.0 0.5 12 0.0 0 -0.5 36 40 44 48 125 150 175 Supply Voltage: VCC [V] Junction Temperature: Tj [°C] Fig.21 Over voltage protection Fig.22 Thermal shutdown 1.5 1.5 85°C 25°C -40°C 85°C 25°C -40°C 1.0 Internal Logic: H/L [-] Internal Logic: H/L [-] 200 0.5 1.0 0.5 0.0 0.0 -0.5 -0.5 2 2.5 3 3.5 4 1 Load Current / Iomax: Normalized 1.5 1.75 2 Load Current / Iomax: Normalized Fig.23 Over current protection (H side) www.rohm.com © 2012 ROHM Co., Ltd. All rights reserved. TSZ22111･15･001 1.25 Fig.24 9/22 Over current protection (L side) TSZ02201-0P2P0B300090-1-2 25.Dec.2012 Rev.002 Datasheet BD623xxx Series ●Typical Performance Curves (Reference data) – Continued 1.6 85°C 25°C -40°C Output Voltage: VCC-VOUT [V] Output Voltage: VCC-VOUT [V] 0.8 0.6 0.4 0.2 0 85°C 25°C -40°C 1.2 0.8 0.4 0 0 0.1 0.2 0.3 0.4 0.5 0 0.2 Output Current: IOUT [A] 0.8 1 Fig.26 Output high voltage (BD6231/36) 2 85°C 25°C -40°C Output Voltage:VCC-VOUT [V] Output Voltage: VCC-VOUT [V] 0.6 Output Current: IOUT [A] Fig.25 Output high voltage (BD6230) 2 0.4 1.5 1 0.5 0 -40°C 25°C 85°C 1.5 1 0.5 0 0 0.4 0.8 1.2 1.6 2 0 0.1 0.2 0.3 0.4 Output Current: IOUT [A] Output Current: IOUT [A] Fig.27 Output high voltage (BD6232/37) Fig.28 High side body diode (BD6230) www.rohm.com © 2012 ROHM Co., Ltd. All rights reserved. TSZ22111･15･001 10/22 0.5 TSZ02201-0P2P0B300090-1-2 25.Dec.2012 Rev.002 Datasheet BD623xxx Series ●Typical Performance Curves (Reference data) – Continued 2 -40°C 25°C 85°C Output Voltage:VCC-VOUT [V] Output Voltage:VCC-VOUT [V] 2 1.5 1 0.5 0 -40°C 25°C 85°C 1.5 1 0.5 0 0 0.2 0.4 0.6 0.8 1 0 0.4 Output Current: IOUT [A] 1.6 2 Fig.30 High side body diode (BD6232/37) 1.6 85°C 25°C -40°C 85°C 25°C -40°C Output Voltage: VOUT [V] Output Voltage: VOUT [V] 1.2 Output Current: IOUT [A] Fig.29 High side body diode (BD6231/36) 0.8 0.8 0.6 0.4 0.2 0 1.2 0.8 0.4 0 0 0.1 0.2 0.3 0.4 0.5 0 Output Current: IOUT [A] 0.4 0.6 0.8 1 Output Current: IOUT [A] Fig.31 Output low voltage (BD6230) www.rohm.com © 2012 ROHM Co., Ltd. All rights reserved. TSZ22111･15･001 0.2 Fig.32 Output low voltage (BD6231/36) 11/22 TSZ02201-0P2P0B300090-1-2 25.Dec.2012 Rev.002 Datasheet BD623xxx Series ●Typical Performance Curves (Reference data) - Continued 2 85°C 25°C -40°C Output Voltage: VOUT [V] Output Voltage: VOUT [V] 2 1.5 1 0.5 -40°C 25°C 85°C 1.5 1 0.5 0 0 0 0.4 0.8 1.2 1.6 2 0 0.1 0.2 0.3 Output Current: IOUT [A] Output Current: IOUT [A] Fig.33 Output low voltage (BD6232/37) Fig.34 Low side body diode (BD6230) 2 2 Output Voltage: VOUT [V] 1.5 1 0.5 0 0.5 -40°C 25°C 85°C -40°C 25°C 85°C Output Voltage: VOUT [V] 0.4 1.5 1 0.5 0 0 0.2 0.4 0.6 0.8 1 0 Output Current: IOUT [A] 0.8 1.2 1.6 2 Output Current: IOUT [A] Fig.35 Low side body diode (BD6231/36) www.rohm.com © 2012 ROHM Co., Ltd. All rights reserved. TSZ22111･15･001 0.4 Fig.36 Low side body diode (BD6232/37) 12/22 TSZ02201-0P2P0B300090-1-2 25.Dec.2012 Rev.002 Datasheet BD623xxx Series ●Functional Descriptions 1) Operation modes Table 7 Logic table FIN RIN VREF OUT1 OUT2 Operation a L L X Hi-Z* Hi-Z* b H L VCC H L Forward (OUT1 > OUT2) c L H VCC L H Reverse (OUT1 < OUT2) d H H X L L Brake (stop) e PWM f L L g PWM H h PWM PWM i H H j VCC VCC H PWM Option PWM Forward (PWM control mode A) H Reverse (PWM control mode A) L Forward (PWM control mode B) __________ PWM __________ L Option H __________ __________ VCC L L VCC Stand-by (idling) Reverse (PWM control mode B) PWM __________ H __________ PWM PWM Forward (VREF control) H Reverse (VREF control) * Hi-Z : all output transistors are off. Please note that this is the state of the connected diodes, which differs from that of the mechanical relay. X : Don’t care a) Stand-by mode Stand-by operates independently with the VREF pin voltage. In stand-by mode, all internal circuits are turned off, including the output power transistors. Motor output goes to high impedance. When the system is switched to stand-by mode while the motor is running, the system enters an idling state because of the body diodes. However, when the system switches to stand-by from any other mode (except the brake mode), the control logic remains in the high state for at least 50µs before shutting down all circuits. b) Forward mode This operating mode is defined as the forward rotation of the motor when the OUT1 pin is high and OUT2 pin is low. When the motor is connected between the OUT1 and OUT2 pins, the current flows from OUT1 to OUT2. To operate in this mode, connect the VREF pin to the VCC pin. c) Reverse mode This operating mode is defined as the reverse rotation of the motor when the OUT1 pin is low and OUT2 pin is high. When the motor is connected between the OUT1 and OUT2 pins, the current flows from OUT2 to OUT1. To operate in this mode, connect the VREF pin to the VCC pin. d) Brake mode This operating mode is used to quickly stop the motor (short circuit brake). It differs from the stand-by mode because the internal control circuit is operating in the brake mode. Please switch to stand-by mode (rather than the brake mode) to save power and reduce consumption. OFF OFF ON M OFF OFF OFF M OFF OFF a) Stand-by mode ON OFF M ON b) Forward mode ON c) Reverse mode OFF M OFF ON ON d) Brake mode Fig.37 Four basic operations (output stage) www.rohm.com © 2012 ROHM Co., Ltd. All rights reserved. TSZ22111･15･001 13/22 TSZ02201-0P2P0B300090-1-2 25.Dec.2012 Rev.002 Datasheet BD623xxx Series e) f) PWM control mode A The rotational speed of the motor can be controlled by the duty cycle of the PWM signal fed to the FIN pin or the RIN pin. In this mode, the high side output is fixed and the low side output is switching, corresponding to the input signal. The state of the output toggles between "L" and "Hi-Z". The frequency of the input PWM signal can be between 20kHz and 100kHz. The circuit may not operate properly for PWM frequencies below 20kHz and above 100kHz. Note that control may not be attained by switching on duty at frequencies lower than 20kHz, since the operation functions via the stand-by mode. To operate in this mode, connect the VREF pin to the VCC pin. In addition, establish a current path for the recovery current from the motor, by connecting a bypass capacitor (10µF or higher is recommended) between VCC and ground. ON OFF ON M OFF OFF M ON OFF Control input : H OFF Control input : L Fig.38 PWM control mode A operation (output stage) FIN RIN OUT1 OUT2 Fig.39 PWM control mode A operation (timing chart) g) h) PWM control mode B The rotational speed of the motor can be controlled by the duty cycle of the PWM signal fed to the FIN pin or the RIN pin. In this mode, the low side output is fixed and the high side output is switching, corresponding to the input signal. The state of the output toggles between "L" and "H". The frequency of the input PWM signal can be between 20kHz and 100kHz. The circuit may not operate properly for PWM frequencies below 20kHz and above 100kHz. To operate in this mode, connect the VREF pin to the VCC pin. In addition, establish a current path for the recovery current from the motor, by connecting a bypass capacitor (10µF or higher is recommended) between VCC and ground. ON OFF ON M OFF OFF M ON OFF Control input : H OFF Control input : L Fig.40 PWM control mode B operation (output stage) FIN RIN OUT1 OUT2 Fig.41 PWM control mode B operation (timing chart) www.rohm.com © 2012 ROHM Co., Ltd. All rights reserved. TSZ22111･15･001 14/22 TSZ02201-0P2P0B300090-1-2 25.Dec.2012 Rev.002 Datasheet BD623xxx Series i) j) VREF control mode The built-in VREF duty cycle conversion circuit provides a duty cycle corresponding to the voltage of the VREF pin and the VCC voltage. The function offers the same level of control as the high voltage output setting function in previous models. The duty cycle is calculated by the following equation. DUTY ≈ VREF [V] / VCC [V] For example, if VCC voltage is 24V and VREF pin voltage is 18V, the duty cycle is about 75 percent. However, please note that the duty cycle might be limited by the range of the VREF pin voltage (Refer to the operating conditions, shown on page 2). The PWM carrier frequency in this mode is 25kHz (nominal), and the switching operation is the same as the PWM control modes. When operating in this mode, do not input a PWM signal to the FIN and RIN pins. In addition, establish a current path for the recovery current from the motor, by connecting a bypass capacitor (10µF or more is recommended) between VCC and ground. VCC VREF 0 FIN RIN OUT1 OUT2 Fig.42 VREF control operation (timing chart) 2) Cross-conduction protection circuit In the full bridge output stage, when the upper and lower transistors are turned on at the same time during high to low or low to high transition, an inrush current flows from the power supply to ground, resulting to a loss. This circuit eliminates the inrush current by providing a dead time (about 400ns, nominal) during the transition. 3) Output protection circuits a) Under voltage lock out (UVLO) circuit To ensure the lowest power supply voltage necessary to operate the controller, and to prevent under voltage malfunctions, a UVLO circuit has been built into this driver. When the power supply voltage falls to 5.0V (nominal) or below, the controller forces all driver outputs to high impedance. When the voltage rises to 5.5V (nominal) or above, the UVLO circuit ends the lockout operation and returns the chip to normal operation. b) Over voltage protection (OVP) circuit When the power supply voltage exceeds 45V (nominal), the controller forces all driver outputs to high impedance. The OVP circuit is released and its operation ends when the voltage drops back to 40V (nominal) or below. This protection circuit does not work in the stand-by mode. Also, note that this circuit is supplementary, and thus if it is asserted, the absolute maximum rating will have been exceeded. Therefore, do not continue to use the IC after this circuit is activated, and do not operate the IC in an environment where activation of the circuit is assumed. www.rohm.com © 2012 ROHM Co., Ltd. All rights reserved. TSZ22111･15･001 15/22 TSZ02201-0P2P0B300090-1-2 25.Dec.2012 Rev.002 Datasheet BD623xxx Series c) Thermal shutdown (TSD) circuit The TSD circuit operates when the junction temperature of the driver exceeds the preset temperature (175℃ nominal). At this time, the controller forces all driver outputs to high impedance. Since thermal hysteresis is provided in the TSD circuit, the chip returns to normal operation when the junction temperature falls below the preset temperature (150℃ nominal). Thus, it is a self-resetting circuit. The TSD circuit is designed only to shut the IC off to prevent thermal runaway. It is not designed to protect the IC or guarantee its operation in the presence of extreme heat. Do not continue to use the IC after the TSD circuit is activated, and do not operate the IC in an environment where activation of the circuit is assumed. d) Over current protection (OCP) circuit To protect this driver IC from ground faults, power supply line faults and load short circuits, the OCP circuit monitors the output current for the circuit’s monitoring time (10µs, nominal). When the protection circuit detects an over current, the controller forces all driver outputs to high impedance during the off time (290µs, nominal). The IC returns to normal operation after the off time period has elapsed (self-returning type). At the two channels type, this circuit works independently for each channel. Threshold Iout 0 CTRL Input ON Internal status OFF mon. ON off timer Monitor / Timer Fig.43 Over current protection (timing chart) ●I/O equivalent circuit VCC FIN RIN VCC VCC OUT1 OUT2 OUT1 OUT2 GND RNF GND VCC 100k 10k VREF 100k Fig.44 FIN / RIN www.rohm.com © 2012 ROHM Co., Ltd. All rights reserved. TSZ22111･15･001 Fig.45 VREF Fig.46 OUT1 / OUT2 Fig.47 OUT1 / OUT2 (SOP8/HRP7) (HSOP25/HSOPM28) 16/22 TSZ02201-0P2P0B300090-1-2 25.Dec.2012 Rev.002 Datasheet BD623xxx Series ●Operational Notes 1) Absolute maximum ratings Operating the IC over the absolute maximum ratings may damage the IC. The damage can either be a short circuit between pins or an open circuit between pins. Therefore, it is important to consider circuit protection measures, such as adding a fuse, in case the IC is operated over the absolute maximum ratings. 2) Reverse connection of power supply Connecting the power supply in reverse polarity can damage the IC. Take precautions against reverse polarity when connecting the power supply, such as mounting an external diode between the power supply and the IC’s power supply terminals. 3) Power supply lines Design the PCB layout pattern to provide low impedance ground and supply lines. Separate the ground and supply lines of the digital and analog blocks to prevent noise in the ground and supply lines of the digital block from affecting the analog block. Furthermore, connect a capacitor to ground at all power supply pins. Consider the effect of temperature and aging on the capacitance value when using electrolytic capacitors. 4) Ground Voltage The voltage of the ground pin must be the lowest voltage of all pins of the IC at all operating conditions. Ensure that no pins are at a voltage below the ground pin at any time, even during transient condition. 5) Thermal consideration Use a thermal design that allows for a sufficient margin by taking into account the permissible power dissipation (Pd) in actual operating conditions. Consider Pc that does not exceed Pd in actual operating conditions (Pc≥Pd). Package Power dissipation Power dissipation : Pd (W)=(Tjmax－Ta)/θja : Pc (W)=(Vcc－Vo)×Io+Vcc×Ib Tjmax : Maximum junction temperature=150℃, Ta : Peripheral temperature[℃] , θja : Thermal resistance of package-ambience[℃/W], Pd : Package Power dissipation [W], Pc : Power dissipation [W], Vcc : Input Voltage, Vo : Output Voltage, Io : Load, Ib : Bias Current 6) Short between pins and mounting errors Be careful when mounting the IC on printed circuit boards. The IC may be damaged if it is mounted in a wrong orientation or if pins are shorted together. Short circuit may be caused by conductive particles caught between the pins. 7) Operation under strong electromagnetic field Operating the IC in the presence of a strong electromagnetic field may cause the IC to malfunction. 8) Area of Safe Operation (ASO) Operate the IC such that the output voltage, output current, and power dissipation are all within the Area of Safe Operation (ASO). 9) Capacitor between output and GND If a large capacitor is connected between the output pin and GND pin, current from the charged capacitor can flow into the output pin and may destroy the IC when the VCC or VIN pin is shorted to ground or pulled down to 0V. Use a capacitor smaller than 10uF between output and GND. 10) Testing on application boards When testing the IC on an application board, connecting a capacitor directly to a low-impedance output pin may subject the IC to stress. Always discharge capacitors completely after each process or step. The IC’s power supply should always be turned off completely before connecting or removing it from the test setup during the inspection process. To prevent damage from static discharge, ground the IC during assembly and use similar precautions during transport and storage. 11) Switching noise When the operation mode is in PWM control or VREF control, PWM switching noise may affect the control input pins and cause IC malfunctions. In this case, insert a pull down resistor (10kΩ is recommended) between each control input pin and ground. www.rohm.com © 2012 ROHM Co., Ltd. All rights reserved. TSZ22111･15･001 17/22 TSZ02201-0P2P0B300090-1-2 25.Dec.2012 Rev.002 Datasheet BD623xxx Series 12) Regarding the input pin of the IC This monolithic IC contains P+ isolation and P substrate layers between adjacent elements in order to keep them isolated. P-N junctions are formed at the intersection of the P layers with the N layers of other elements, creating a parasitic diode or transistor. For example (refer to figure below): When GND > Pin A and GND > Pin B, the P-N junction operates as a parasitic diode. When GND > Pin B, the P-N junction operates as a parasitic transistor. Parasitic diodes inevitably occur in the structure of the IC. The operation of parasitic diodes can result in mutual interference among circuits, operational faults, or physical damage. Therefore, conditions that cause these diodes to operate, such as applying a voltage lower than the GND voltage to an input pin (and thus to the P substrate) should be avoided. Resistor Transistor (NPN) Pin A Pin B C Pin B B Pin A N P+ N P+ P N E Parasitic element N P+ Parasitic element B P+ P C N E P substrate GND N P substrate GND Parasitic element GND Parasitic GND element Other adjacent elements Fig. 48 Example of monolithic IC structure www.rohm.com © 2012 ROHM Co., Ltd. All rights reserved. TSZ22111･15･001 18/22 TSZ02201-0P2P0B300090-1-2 25.Dec.2012 Rev.002 Datasheet BD623xxx Series ●Physical Dimensions Tape and Reel Information SOP8 <Tape and Reel information> 7 5 6 +6° 4° −4° 6.2±0.3 4.4±0.2 0.3MIN 8 1 2 3 0.9±0.15 5.0±0.2 (MAX 5.35 include BURR) Tape Embossed carrier tape Quantity 2500pcs Direction of feed E2 The direction is the 1pin of product is at the upper left when you hold ( reel on the left hand and you pull out the tape on the right hand ) 4 0.595 1.5±0.1 +0.1 0.17 -0.05 S S 0.11 0.1 1.27 1pin 0.42±0.1 Reel (Unit : mm) Direction of feed ∗ Order quantity needs to be multiple of the minimum quantity. HSOP25 <Tape and Reel information> 13.6 ± 0.2 (MAX 13.95 include BURR) 2.75 ± 0.1 2000pcs Direction of feed 0.3Min. 1 13 E2 The direction is the 1pin of product is at the upper left when you hold ( reel on the left hand and you pull out the tape on the right hand ) 0.25 ± 0.1 1.95 ± 0.1 1.9 ± 0.1 Embossed carrier tape Quantity 14 5.4 ± 0.2 7.8 ± 0.3 25 Tape 0.11 S 0.1 S 0.8 0.36 ± 0.1 12.0 ± 0.2 1pin Reel (Unit : mm) Direction of feed ∗ Order quantity needs to be multiple of the minimum quantity. HSOP-M28 <Tape and Reel information> 18.5 ± 0.2 (MAX 18.85 include BURR) +6° 4°−4° 1.25 1500pcs 1.2±0.15 0.5±0.2 Direction of feed E2 The direction is the 1pin of product is at the upper left when you hold ( reel on the left hand and you pull out the tape on the right hand ) 14 1 5.15 ± 0.1 +0.1 0.27 −0.05 S 0.11 2.2±0.1 Embossed carrier tape Quantity 15 7.5±0.2 9.9±0.3 28 Tape 0.8 0.37 ± 0.1 0.1 S 1pin Reel (Unit : mm) www.rohm.com © 2012 ROHM Co., Ltd. All rights reserved. TSZ22111･15･001 19/22 Direction of feed ∗ Order quantity needs to be multiple of the minimum quantity. TSZ02201-0P2P0B300090-1-2 25.Dec.2012 Rev.002 Datasheet BD623xxx Series ●Physical Dimensions Tape and Reel Information- Continued HRP7 <Tape and Reel information> 1.905±0.1 0.8875 1 2 3 4 0.835±0.2 8.0±0.13 (7.49) 8.82±0.1 (6.5) 5 6 7 1.523±0.15 10.54±0.13 1.017±0.2 9.395±0.125 (MAX 9.745 include BURR) Tape Embossed carrier tape Quantity 2000pcs Direction of feed TR The direction is the 1pin of product is at the upper right when you hold ( reel on the left hand and you pull out the tape on the right hand ) 1pin +5.5° 4.5° −4.5° 0.08±0.05 +0.1 0.27 -0.05 0.73±0.1 1.27 S Direction of feed 0.08 S www.rohm.com © 2012 ROHM Co., Ltd. All rights reserved. TSZ22111･15･001 Reel (Unit : mm) 20/22 ∗ Order quantity needs to be multiple of the minimum quantity. TSZ02201-0P2P0B300090-1-2 25.Dec.2012 Rev.002 Datasheet BD623xxx Series ●Marking Diagrams SOP8(TOP VIEW) HSOP25 (TOP VIEW) Part Number Marking Part Number Marking LOT Number LOT Number 1PIN MARK 1PIN MARK HSOP-M28 (TOP VIEW) HRP7 (TOP VIEW) Part Number Marking Part Number Marking LOT Number LOT Number 1PIN MARK 1PIN MARK Part Number Package Part Number Marking BD6230F SOP8 6230 BD6231HFP HRP7 BD6231HFP BD6231F SOP8 6231 BD6232HFP HRP7 BD6232HFP BD6232FP HSOP25 BD6232FP BD6236FP HSOP25 BD6236FP BD6236FM HSOP-M28 BD6236FM BD6237FM HSOP/M28 BD6237FM www.rohm.com © 2012 ROHM Co., Ltd. All rights reserved. TSZ22111･15･001 21/22 TSZ02201-0P2P0B300090-1-2 25.Dec.2012 Rev.002 Datasheet BD623xxx Series ●Revision History Date Revision 10.Apr.2012 001 25.Dec.2012 002 Changes New Release Improved the statement in all pages. Deleted “Status of this document” in page 18. www.rohm.com © 2012 ROHM Co., Ltd. All rights reserved. TSZ22111･15･001 22/22 TSZ02201-0P2P0B300090-1-2 25.Dec.2012 Rev.002 Datasheet Notice ●General Precaution 1) Before you use our Products, you are requested to carefully read this document and fully understand its contents. ROHM shall not be in any way responsible or liable for failure, malfunction or accident arising from the use of any ROHM’s Products against warning, caution or note contained in this document. 2) All information contained in this document is current as of the issuing date and subject to change without any prior notice. Before purchasing or using ROHM’s Products, please confirm the latest information with a ROHM sales representative. ●Precaution on using ROHM Products 1) Our Products are designed and manufactured for application in ordinary electronic equipments (such as AV equipment, OA equipment, telecommunication equipment, home electronic appliances, amusement equipment, etc.). If you intend to use our Products in devices requiring extremely high reliability (such as medical equipment, transport equipment, traffic equipment, aircraft/spacecraft, nuclear power controllers, fuel controllers, car equipment including car accessories, safety devices, etc.) and whose malfunction or failure may cause loss of human life, bodily injury or serious damage to property (“Specific Applications”), please consult with the ROHM sales representative in advance. Unless otherwise agreed in writing by ROHM in advance, ROHM shall not be in any way responsible or liable for any damages, expenses or losses incurred by you or third parties arising from the use of any ROHM’s Products for Specific Applications. 2) ROHM designs and manufactures its Products subject to strict quality control system. However, semiconductor products can fail or malfunction at a certain rate. Please be sure to implement, at your own responsibilities, adequate safety measures including but not limited to fail-safe design against the physical injury, damage to any property, which a failure or malfunction of our Products may cause. The following are examples of safety measures: [a] Installation of protection circuits or other protective devices to improve system safety [b] Installation of redundant circuits to reduce the impact of single or multiple circuit failure 3) Our Products are designed and manufactured for use under standard conditions and not under any special or extraordinary environments or conditions, as exemplified below. Accordingly, ROHM shall not be in any way responsible or liable for any damages, expenses or losses arising from the use of any ROHM’s Products under any special or extraordinary environments or conditions. If you intend to use our Products under any special or extraordinary environments or conditions (as exemplified below), your independent verification and confirmation of product performance, reliability, etc, prior to use, must be necessary: [a] Use of our Products in any types of liquid, including water, oils, chemicals, and organic solvents [b] Use of our Products outdoors or in places where the Products are exposed to direct sunlight or dust [c] Use of our Products in places where the Products are exposed to sea wind or corrosive gases, including Cl2, H2S, NH3, SO2, and NO2 [d] Use of our Products in places where the Products are exposed to static electricity or electromagnetic waves [e] Use of our Products in proximity to heat-producing components, plastic cords, or other flammable items [f] Sealing or coating our Products with resin or other coating materials [g] Use of our Products without cleaning residue of flux (even if you use no-clean type fluxes, cleaning residue of flux is recommended); or Washing our Products by using water or water-soluble cleaning agents for cleaning residue after soldering [h] Use of the Products in places subject to dew condensation 4) The Products are not subject to radiation-proof design. 5) Please verify and confirm characteristics of the final or mounted products in using the Products. 6) In particular, if a transient load (a large amount of load applied in a short period of time, such as pulse) is applied, confirmation of performance characteristics after on-board mounting is strongly recommended. Avoid applying power exceeding normal rated power; exceeding the power rating under steady-state loading condition may negatively affect product performance and reliability. 7) De-rate Power Dissipation (Pd) depending on Ambient temperature (Ta). When used in sealed area, confirm the actual ambient temperature. 8) Confirm that operation temperature is within the specified range described in the product specification. 9) ROHM shall not be in any way responsible or liable for failure induced under deviant condition from what is defined in this document. Notice - Rev.004 © 2013 ROHM Co., Ltd. All rights reserved. Datasheet ●Precaution for Mounting / Circuit board design 1) When a highly active halogenous (chlorine, bromine, etc.) flux is used, the residue of flux may negatively affect product performance and reliability. 2) In principle, the reflow soldering method must be used; if flow soldering method is preferred, please consult with the ROHM representative in advance. For details, please refer to ROHM Mounting specification ●Precautions Regarding Application Examples and External Circuits 1) If change is made to the constant of an external circuit, please allow a sufficient margin considering variations of the characteristics of the Products and external components, including transient characteristics, as well as static characteristics. 2) You agree that application notes, reference designs, and associated data and information contained in this document are presented only as guidance for Products use. Therefore, in case you use such information, you are solely responsible for it and you must exercise your own independent verification and judgment in the use of such information contained in this document. ROHM shall not be in any way responsible or liable for any damages, expenses or losses incurred by you or third parties arising from the use of such information. ●Precaution for Electrostatic This Product is electrostatic sensitive product, which may be damaged due to electrostatic discharge. Please take proper caution in your manufacturing process and storage so that voltage exceeding the Products maximum rating will not be applied to Products. Please take special care under dry condition (e.g. Grounding of human body / equipment / solder iron, isolation from charged objects, setting of Ionizer, friction prevention and temperature / humidity control). ●Precaution for Storage / Transportation 1) Product performance and soldered connections may deteriorate if the Products are stored in the places where: [a] the Products are exposed to sea winds or corrosive gases, including Cl2, H2S, NH3, SO2, and NO2 [b] the temperature or humidity exceeds those recommended by ROHM [c] the Products are exposed to direct sunshine or condensation [d] the Products are exposed to high Electrostatic 2) Even under ROHM recommended storage condition, solderability of products out of recommended storage time period may be degraded. It is strongly recommended to confirm solderability before using Products of which storage time is exceeding the recommended storage time period. 3) Store / transport cartons in the correct direction, which is indicated on a carton with a symbol. Otherwise bent leads may occur due to excessive stress applied when dropping of a carton. 4) Use Products within the specified time after opening a humidity barrier bag. Baking is required before using Products of which storage time is exceeding the recommended storage time period. ●Precaution for Product Label QR code printed on ROHM Products label is for ROHM’s internal use only. ●Precaution for Disposition When disposing Products please dispose them properly using an authorized industry waste company. ●Precaution for Foreign Exchange and Foreign Trade act Since our Products might fall under controlled goods prescribed by the applicable foreign exchange and foreign trade act, please consult with ROHM representative in case of export. ●Precaution Regarding Intellectual Property Rights 1) All information and data including but not limited to application example contained in this document is for reference only. ROHM does not warrant that foregoing information or data will not infringe any intellectual property rights or any other rights of any third party regarding such information or data. ROHM shall not be in any way responsible or liable for infringement of any intellectual property rights or other damages arising from use of such information or data.: 2) No license, expressly or implied, is granted hereby under any intellectual property rights or other rights of ROHM or any third parties with respect to the information contained in this document. Notice - Rev.004 © 2013 ROHM Co., Ltd. All rights reserved. Datasheet ●Other Precaution 1) The information contained in this document is provided on an “as is” basis and ROHM does not warrant that all information contained in this document is accurate and/or error-free. ROHM shall not be in any way responsible or liable for any damages, expenses or losses incurred by you or third parties resulting from inaccuracy or errors of or concerning such information. 2) This document may not be reprinted or reproduced, in whole or in part, without prior written consent of ROHM. 3) The Products may not be disassembled, converted, modified, reproduced or otherwise changed without prior written consent of ROHM. 4) In no event shall you use in any way whatsoever the Products and the related technical information contained in the Products or this document for any military purposes, including but not limited to, the development of mass-destruction weapons. 5) The proper names of companies or products described in this document are trademarks or registered trademarks of ROHM, its affiliated companies or third parties. Notice - Rev.004 © 2013 ROHM Co., Ltd. All rights reserved.