EVAL6225PD

L6225 DMOS DUAL FULL BRIDGE DRIVER ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ OPERATING SUPPLY VOLTAGE FROM 8 TO 52V 2.8A OUTPUT PEAK CURRENT (1.4A DC) RDS(ON) 0.73Ω TYP. VALUE @ Tj = 25 °C OPERATING FREQUENCY UP TO 100KHz NON DISSIPATIVE OVERCURRENT PROTECTION PARALLELED OPERATION CROSS CONDUCTION PROTECTION THERMAL SHUTDOWN UNDER VOLTAGE LOCKOUT INTEGRATED FAST FREE WHEELING DIODES TYPICAL APPLICATIONS ■ BIPOLAR STEPPER MOTOR ■ DUAL OR QUAD DC MOTOR DESCRIPTION The L6225 is a DMOS Dual Full Bridge designed for motor control applications, realized in MultiPower- PowerDIP20 (16+2+2) PowerSO20 SO20 (16+2+2) ORDERING NUMBERS: L6225N (PowerDIP20) L6225PD (PowerSO20) L6225D (SO20) BCD technology, which combines isolated DMOS Power Transistors with CMOS and bipolar circuits on the same chip. Available in PowerDIP20 (16+2+2), PowerSO20 and SO20(16+2+2) packages, the L6225 features a non-dissipative protection of the high side PowerMOSFETs and thermal shutdown. BLOCK DIAGRAM VBOOT VBOOT VBOOT VSA VBOOT CHARGE PUMP VCP OCDA OVER CURRENT DETECTION OUT1A 10V THERMAL PROTECTION OUT2A 10V GATE LOGIC ENA IN1A SENSEA IN2A VOLTAGE REGULATOR 10V 5V BRIDGE A OCDB OVER CURRENT DETECTION V SB OUT1B ENB OUT2B GATE LOGIC SENSEB IN1B IN2B BRIDGE B D99IN1091A September 2003 1/20 L6225 ABSOLUTE MAXIMUM RATINGS Symbol VS VOD VBOOT Parameter Test conditions Value Unit Supply Voltage VSA = VSB = VS 60 V Differential Voltage between VSA, OUT1A, OUT2A, SENSEA and VSB, OUT1B, OUT2B, SENSEB VSA = VSB = VS = 60V; VSENSEA = VSENSEB = GND 60 V Bootstrap Peak Voltage VSA = VSB = VS VS + 10 V VIN,VEN Input and Enable Voltage Range -0.3 to +7 V VSENSEA, VSENSEB Voltage Range at pins SENSEA and SENSEB -1 to +4 V IS(peak) Pulsed Supply Current (for each VS pin), internally limited by the overcurrent protection VSA = VSB = VS; tPULSE < 1ms 3.55 A RMS Supply Current (for each VS pin) VSA = VSB = VS 1.4 A -40 to 150 °C IS Tstg, TOP Storage and Operating Temperature Range RECOMMENDED OPERATING CONDITIONS Symbol VS Parameter Test Conditions Supply Voltage VSA = VSB = VS VOD Differential Voltage Between VSA, OUT1A, OUT2A, SENSEA and VSB, OUT1B, OUT2B, SENSEB VSA = VSB = VS; VSENSEA = VSENSEB VSENSEA, VSENSEB Voltage Range at pins SENSEA and SENSEB (pulsed tW < trr) (DC) IOUT 2/20 MIN MAX Unit 8 52 V 52 V 6 1 V V 1.4 A +125 °C 100 KHz -6 -1 RMS Output Current Tj Operating Junction Temperature fsw Switching Frequency -25 L6225 THERMAL DATA Symbol Description Rth-j-pins MaximumThermal Resistance Junction-Pins Rth-j-case Maximum Thermal Resistance Junction-Case PowerDIP20 SO20 PowerSO20 Unit 13 15 - °C/W - - 2 °C/W 41 52 - °C/W Rth-j-amb1 MaximumThermal Resistance Junction-Ambient Rth-j-amb1 Maximum Thermal Resistance Junction-Ambient 2 - - 36 °C/W Rth-j-amb1 MaximumThermal Resistance Junction-Ambient 3 - - 16 °C/W Rth-j-amb2 Maximum Thermal Resistance Junction-Ambient 4 57 78 63 °C/W (1) (2) (3) (4) 1 Mounted on a multi-layer FR4 PCB with a dissipating copper surface on the bottom side of 6cm2 (with a thickness of 35µm). Mounted on a multi-layer FR4 PCB with a dissipating copper surface on the top side of 6cm2 (with a thickness of 35µm). Mounted on a multi-layer FR4 PCB with a dissipating copper surface on the top side of 6cm2 (with a thickness of 35µm), 16 via holes and a ground layer. Mounted on a multi-layer FR4 PCB without any heat sinking surface on the board. PIN CONNECTIONS (Top View) IN1A 1 20 ENA GND 1 20 GND IN2A 2 19 VCP VSA 2 19 VSB SENSEA 3 18 OUT2A OUT2A 3 18 OUT2B OUT1A 4 17 VSA VCP 4 17 VBOOT GND 5 16 GND ENA 5 16 ENB GND 6 15 GND IN1A 6 15 IN2B OUT1B 7 14 VSB IN2A 7 14 IN1B SENSEB 8 13 OUT2B SENSEA 8 13 SENSEB IN1B 9 12 VBOOT OUT1A 9 12 OUT1B IN2B 10 11 ENB 10 11 GND GND D99IN1093A PowerDIP20/SO20 (5) D99IN1092A PowerSO20 (5) The slug is internally connected to pins 1,10,11 and 20 (GND pins). 3/20 L6225 PIN DESCRIPTION PACKAGE SO20/ PowerDIP20 PowerSO20 PIN # PIN # 1 Name Type Function 6 IN1A Logic Input Bridge A Logic Input 1. 2 7 IN2A Logic Input Bridge A Logic Input 2. 3 8 SENSEA Power Supply Bridge A Source Pin. This pin must be connected to Power Ground directly or through a sensing power resistor. 4 9 OUT1A Power Output Bridge A Output 1. 5, 6, 15, 16 1, 10, 11, 20 GND GND 7 12 OUT1B Power Output Bridge B Output 1. 8 13 SENSEB Power Supply Bridge B Source Pin. This pin must be connected to Power Ground directly or through a sensing power resistor. 9 14 IN1B Logic Input Bridge B Logic Input 1. 10 15 IN2B Logic Input Bridge B Logic Input 2. 11 16 ENB Logic Input (6) 12 17 VBOOT Supply Voltage 13 18 OUT2B Power Output Bridge B Output 2. 14 19 VSB Power Supply Bridge B Power Supply Voltage. It must be connected to the supply voltage together with pin VSA. 17 2 VSA Power Supply Bridge A Power Supply Voltage. It must be connected to the supply voltage together with pin VSB. 18 3 OUT2A Power Output Bridge A Output 2. 19 4 VCP Output 20 5 ENA Logic Input (6) Signal Ground terminals. In PowerDIP and SO packages, these pins are also used for heat dissipation toward the PCB. Bridge B Enable. LOW logic level switches OFF all Power MOSFETs of Bridge B. This pin is also connected to the collector of the Overcurrent and Thermal Protection transistor to implement over current protection. If not used, it has to be connected to +5V through a resistor. Bootstrap Voltage needed for driving the upper PowerMOSFETs of both Bridge A and Bridge B. Charge Pump Oscillator Output. Bridge A Enable. LOW logic level switches OFF all Power MOSFETs of Bridge A. This pin is also connected to the collector of the Overcurrent and Thermal Protection transistor to implement over current protection. If not used, it has to be connected to +5V through a resistor. (6) Also connected at the output drain of the Overcurrent and Thermal protection MOSFET. Therefore, it has to be driven putting in series a resistor with a value in the range of 2.2kΩ - 180KΩ, recommended 100kΩ 4/20 L6225 ELECTRICAL CHARACTERISTICS (Tamb = 25 °C, Vs = 48V, unless otherwise specified) Symbol Min Typ Max Unit VSth(ON) Turn-on Threshold 5.8 6.3 6.8 V VSth(OFF) Turn-off Threshold 5 5.5 6 V 5 10 mA IS Tj(OFF) Parameter Quiescent Supply Current Test Conditions All Bridges OFF; Tj = -25°C to 125°C (7) Thermal Shutdown Temperature °C 165 Output DMOS Transistors RDS(ON) IDSS High-Side + Low-Side Switch ON Tj = 25 °C Resistance Tj =125 °C (7) Leakage Current 1.47 1.69 Ω 2.35 2.70 Ω 2 mA EN = Low; OUT = VS EN = Low; OUT = GND -0.3 mA Source Drain Diodes Forward ON Voltage ISD = 1.4A, EN = LOW 1.15 trr Reverse Recovery Time If = 1.4A 300 ns tfr Forward Recovery Time 200 ns VSD 1.3 V Logic Input VIL Low level logic input voltage -0.3 0.8 V VIH High level logic input voltage 2 7 V IIL Low Level Logic Input Current GND Logic Input Voltage IIH High Level Logic Input Current 7V Logic Input Voltage Vth(ON) Turn-on Input Threshold Vth(OFF) Turn-off Input Threshold Vth(HYS) Input Threshold Hysteresis -10 µA 1.8 10 µA 2.0 V 0.8 1.3 V 0.25 0.5 V Switching Characteristics tD(on)EN Enable to out turn ON delay time (8) ILOAD =1.4A, Resistive Load tD(on)IN Input to out turn ON delay time ILOAD =1.4A, Resistive Load (dead time included) Output rise time(8) ILOAD =1.4A, Resistive Load 40 tD(off)EN Enable to out turn OFF delay time (8) ILOAD =1.4A, Resistive Load 500 tD(off)IN Input to out turn OFF delay time ILOAD =1.4A, Resistive Load 500 Output Fall Time (8) ILOAD =1.4A, Resistive Load 40 tRISE tFALL 500 800 1.9 ns µs 250 ns 800 1000 ns 800 1000 ns 250 ns 5/20 L6225 ELECTRICAL CHARACTERISTICS (continued) (Tamb = 25 °C, Vs = 48V, unless otherwise specified) Symbol Parameter tdt Dead Time Protection fCP Charge pump frequency Test Conditions Min Typ 0.5 1 -25°C