EVAL6230QR

EVAL6230QR Demonstration board mounting the L6230Q three-phase brushless DC motor driver Data brief Features ■ Operating supply voltage from 8 to 52 V ■ 2.8 A output peak current (1.4 Ar.m.s.) ■ RDS(on) 0.73 Ω typ. value @ TJ = 25 °C ■ Integrated fast freewheeling diodes ■ Operating frequency up to 100 kHz ■ Non-dissipative overcurrent detection and protection ■ Cross conduction protection ■ Diagnostic output ■ Uncommitted comparator ■ Thermal shutdown ■ Undervoltage lockout Description The L6230Q is a DMOS fully integrated threephase motor driver with overcurrent protection, optimized for FOC applications thanks to the independent current sensing. Realized in BCD multipower technology, the L6230Q features a non-dissipative overcurrent protection on the high-side power MOSFETs and thermal shutdown. An uncommitted comparator with open-drain output is available. January 2013 Doc ID 022836 Rev 1 For further information contact your local STMicroelectronics sales office. 1/8 www.st.com 8 Board description 1 EVAL6230QR Board description Table 1. EVAL6230QR: electrical specifications (recommended values) Parameter Value Supply voltage range (VS) 8 to 52 Vdc Output current rating (OUTx) up to 1.4 Ar.m.s. Switching frequency up to 100 kHz Input and enable voltage range 0 to + 5 V Comparator input voltage range 0 to + 5 V L6230Q thermal resistance junction-to-ambient 42 °C/W Figure 1. 2/8 EVAL6230QR connector description Doc ID 022836 Rev 1 EVAL6230QR Board description Table 2. EVAL6230QR: pin connections Name Type Function VS Power supply Power supply voltage PGND Ground Power ground terminal VS_FB Analog output EN Logic input Chip enable (active ‘H’). When ‘L’ switches OFF all power DMOS. IN1 Logic input Logic input half-bridge 1 EN1 Logic input Enable input half-bridge 1 IN2 Logic input Logic input half-bridge 2 EN2 Logic input Enable input half-bridge 2 IN3 Logic input Logic input half-bridge 3 EN3 Logic input Enable input half-bridge 3 DIAG Open-drain output Diagnostic pin. When ‘L’ signals an overcurrent or overtemperature event. CPOUT Open-drain output Open-drain output of internal comparator CP- Analog input Inverting input of internal comparator CP+ Analog input Non-inverting input of internal comparator SENSE1 Analog output Half-bridge 1 source pin SENSE2 Analog output Half-bridge 2 source pin SENSE3 Analog output Half-bridge 3 source pin OUT1 Power output Output half-bridge 1 OUT2 Power output Output half-bridge 2 OUT3 Power output Output half-bridge 3 Supply voltage feedback (1/115 divider ratio) Doc ID 022836 Rev 1 3/8 4/8 N 5 N 5 N 5 Doc ID 022836 Rev 1 &3 *1' &3287 5 : 12 -3 :  5  6(16( 12 -3  &3 6(16(  96% &3 &3 /4 ,1 (1 9%227 ,1 9&3 ,1 96$ (1 ,1  5 : 1& 1& 287 287 287 1&(3$' 1&(3$' 1&(3$' 1&(3$' 1&(3$' 1&(3$' 1&(3$' 6(16( &3287  ,1 N 5  (1 N 5  ,1 N 5  (1 N 5   ,1  (1  ',$*(1     (1 5 N 8 & Q)9   & Q) 6(16( 6(16( 6(16( 287    287 287  3*1'         & X)9 96 96 5 N 5 N 5 N 96B)% Figure 2. %DW6:  96 2 (1 ',$* & Q)9  ' & Q)9 Schematic and bill of material EVAL6230QR Schematic and bill of material EVAL6230QR schematic diagram    *1'  !-V EVAL6230QR Schematic and bill of material Table 3. EVAL6230QR part list Part reference Part value Part description C1 220 nF/100 V Capacitor C2 100 µF/63 V Capacitor C3 10 nF/25 V Capacitor C4 220 nF/25 V Capacitor C5 5.6 nF Capacitor D1 BAT46SW Diodes R1 to R8 100 kΩ 5 % 0.25 W Resistor R9, R10, R11 0.47 Ω - 0.5 W Resistor R12, R13 470 kΩ 5 % 0.25 W Resistor R14 8.2 kΩ 5 % 0.25 W Resistor U1 L6230Q Three-phase BLDC motor driver in VFQFPN5x5 EVAL6230QR component placement 32 mm Figure 3. 31 mm AM16556v1 Doc ID 022836 Rev 1 5/8 Schematic and bill of material 6/8 EVAL6230QR Figure 4. EVAL6230QR top layer layout Figure 5. Bottom layer layout Doc ID 022836 Rev 1 EVAL6230QR 3 Revision history Revision history Table 4. Document revision history Date Revision 15-Jan-2013 1 Changes Initial release. Doc ID 022836 Rev 1 7/8 EVAL6230QR Please Read Carefully: Information in this document is provided solely in connection with ST products. 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