RT1A045AP Datasheet Pch -12V -4.5A Power MOSFET llOutline TSST8 V -12V DSS R (Max.) 30m DS(on) I 4.5A D P 1.25W D llInner circuit llFeatures 1) Low on - resistance. 2) Built-in G-S Protection Diode. 3) Small Surface Mount Package (TSST8). 4) Pb-free lead plating RoHS compliant llPackaging specifications Embossed Packing Tape Reel size (mm) 180 llApplication Tape width (mm) 8 Type DC/DC converters Basic ordering unit (pcs) 3000 Taping code TR Marking SC llAbsolute maximum ratings (T = 25C) a Parameter Symbol Value Unit V Drain - Source voltage -12 V DSS I Continuous drain current 4.5 A D *2 I Pulsed drain current 18 A D,pulse V Gate - Source voltage 0 to -8 V GSS *3 P 1.25 W D Power dissipation *4 P 0.65 W D T Junction temperature 150 j Range of storage temperature T -55 to +150 stg www.rohm.com 2015 ROHM Co., Ltd. All rights reserved. 1/11 20150730 - Rev.001 RT1A045AP Datasheet llThermal resistance Values Parameter Symbol Unit Min. Typ. Max. - - 100 /W *3 R Thermal resistance, junction - ambient thJA - - 192 /W llElectrical characteristics (T = 25C) a Values Parameter Symbol Conditions Unit Min. Typ. Max. Drain - Source breakdown V V = 0V, I = -1mA -12 - - V (BR)DSS GS D voltage V I = -1mA (BR)DSS D Breakdown voltage - -12 - mV/ temperature coefficient T referenced to 25 j Zero gate voltage I V = -12V, V = 0V - - -10 A DSS DS GS drain current I Gate - Source leakage current V = -8V, V = 0V - - -10 A GSS GS DS V Gate threshold voltage V = -6V, I = -1mA -0.3 - -1.0 V GS(th) DS D V I = -1mA GS(th) D Gate threshold voltage - 2.6 - mV/ temperature coefficient T referenced to 25 j V = -4.5V, I = -4.5A - 22 30 GS D V = -2.5V, I = -2.2A - 28 39 GS D Static drain - source *5 R V = -1.8V, I = -2.2A - 38 57 m DS(on) GS D on - state resistance V = -1.5V, I = 0.9A - 50 100 GS D V = -4.5V, I = -4.5A, T = 125 GS D j - 34 48 R Gate input resistance f = 1MHz, open drain - 20 - G Forward Transfer *5 Y V = -6V, I = -4.5A 5.5 11 - S fs DS D Admittance *1 Limited only by maximum temperature allowed. *2 Pw 10s, Duty cycle 1% *3 Mounted on a ceramic board (30300.8mm) *4 Mounted on a FR4(20200.8mm) *5 Pulsed www.rohm.com 2015 ROHM Co., Ltd. All rights reserved. 2/11 20150730 - Rev.001