STPS140AY STMicroelectronics

STPS140-Y Automotive power Schottky rectifier Features Very small conduction losses Negligible switching losses Low forward voltage drop Surface mount miniature packages SMA SMB Avalanche capability specified (JEDEC DO-214AC) (JEDEC DO-214AA) AEC-Q101 qualified STPS140AY STPS140UY ECOPACK 2 compliant component Table 1. Device summary Description Symbol Value Single chip Schottky rectifiers suited to Switched I 1 A F(AV) Mode Power Supplies and high frequency DC to DC converters. V 40 V RRM Packaged in SMA and SMB, this device is T 150 C j (max) especially intended for surface mounting and V 0.5 V F (max) used in low voltage, high frequency inverters, free wheeling and polarity protection for automotive applications. December 2010 Doc ID 17973 Rev 1 1/9 www.st.com 9Characteristics STPS140-Y 1 Characteristics Table 2. Absolute Ratings (limiting values) Symbol Parameter Value Unit V Repetitive peak reverse voltage 40 V RRM I Forward rms voltage 7 A F(RMS) SMA T = 130 C = 0.5 A L Average forward I 1 F(AV) current SMB T = 135 C = 0.5 A L I Surge non repetitive forward current t =10 ms sinusoidal 60 A FSM p I Repetitive peak reverse current t = 2 s F = 1 kHz square 1 A RRM p I Non repetitive peak reverse current t = 100 s square 1 A RSM p P Repetitive peak avalanche power t = 1 s Tj = 25 C 900 W ARM p T Storage temperature range - 65 to + 150 C stg (1) T Operating junction temperature range - 40 to + 150 C j dV/dt Critical rate of rise of reverse voltage 10000 V/s 1 dPtot < 1. condition to avoid thermal runaway for a diode on its own heatsink Rth(j-a) dTj Table 3. Thermal resistance Symbol Parameter Value Unit SMA 30 R Junction to lead C/W th(j-l) SMB 25 Table 4. Static electrical characteristics Symbol Parameter Test Conditions Min. Typ. Max. Unit T = 25 C 12 A j (1) I Reverse leakage current V = V R R RRM T = 100 C 0.25 2 mA j T = 25 C 0.55 j I = 1 A F T = 125 C 0.43 0.5 j (2) V Forward voltage drop V F T = 25 C 0.65 j I = 2 A F T = 125 C 0.53 0.6 j 1. Pulse test: tp = 380 s, < 2% 2. Pulse test: tp = 5 ms, < 2% 2 To evaluate the conduction losses use the following equation: P = 0.4 x I + 0.10 I F(AV) F (RMS) 2/9 Doc ID 17973 Rev 1