STEVAL-IFP010V1 STMicroelectronics

STEVAL-IFP010V1 Demonstration board for the VNI2140J dual high-side, solid-state smart power relay Data Brief Features Output current: 1 A per channel Shorted load protection Junction over-temperature protection Case over-temperature protection for thermal independence of the channels Non-simultaneous TCSD (thermal case shutdown) restart for the various channels Protection against loss of ground Current limitation Under-voltage shutdown Open load in OFF state and short to V CC STEVAL-IFP010V1 detection Open drain diagnostic outputs In cases where more than one channel is in 3.3 V CMOS/TTL compatible inputs overload, the TCSD restart will not be simultaneous, in order to prevent high peak Fast demagnetization of inductive loads current from the supply. Non overloaded channels Conforms to IEC 61131-2 supply voltage: +4 V continue to operate normally. The open drain to +36 V diagnostics output indicates over-temperature. Description This demonstration board is based on the VNI2140J, a monolithic device designed using STs VIPower technology for driving two independent resistive or inductive loads with one side connected to ground. Active current limitation prevents the dropping of system power supply in case of a shorted load. Built-in thermal shutdown protects the chip from over-temperature and short-circuit. In overload condition, channel turns OFF and back ON automatically in order to maintain the junction temperature between TTSD and TR. If this condition causes case temperature to reach TCSD, the overloaded channel is turned OFF and will restart only when case temperature has decreased down to TCR. June 2008 Rev 1 1/6 For further information contact your local STMicroelectronics sales office. www.st.com 6 Obsolete Product(s) - Obsolete Product(s)Board schematic STEVAL-IFP010V1 1 Board schematic Figure 1. Schematic diagram 2/6 Obsolete Product(s) - Obsolete Product(s) 1 2 VDD 1 2 C5 C6 3 4 IN1 3 4 IN2 4.7nF 4.7nF 5 6 STAT1 5 6 7 8 STAT1 7 8 STAT2 IN1 9 10 9 10 VDD 11 12 11 12 IN2 13 14 13 14 15 16 J5 17 18 CAN7 19 20 21 22 23 24 STAT2 25 26 27 28 29 30 31 32 33 34 J1 J4 J2 1 EVALCOMMBOARD +24Vdc Vcc DISC. TEST 2 GND OR R4 R3 CURRENT PROBE 47K 47K M2 + 1206 1206 R11 R12 M.2VITEB 240K 240K C3 C4 1206 1206 IC2 TLP281F 47uF 100nF 1 4 IN1 1206 T3 R5 1K 2 3 1206 2 In 1 T1 1 4 IN2 6 11 R6 In 2 Out 1 1K 2 3 10 Out 1 1206 TLP281F IC3 T4 TLP281F IC4 4 1 STAT1 T5 T2 1 OUT1 3 2 9 2 Out 2 5 8 OUT2 R9 Diag 2 Out 2 4 1 10K STAT2 M1 1206 3 Diag 1 M.2VITEB 3 2 R10 TLP281F IC5 T6 10K R7 R8 1206 DL2 DL1 10K 10K LED LED 1206 1206 IC1 VNI2140J C1 C2 10nF 10nF VDD R1 R2 J3 22K 22K GND DISC. TEST 1206 1206 7 Vcc 12 Vcc A B A B 4 TAB GND Vcc A B D1 SM15T39AC