Datasheet UPS140 (Microsemi)

580 Pleasant St.
Watertown, MA 02472
PH: (617) 926-0404
FAX: (617) 924-1235 UPS140
SURFACE MOUNT
1A SCHOTTKY RECTIFIER
POWERMITE
 Power Surface Mount Package Features:
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• Low Profile -Maximum Height of 1.1 mm
Small Footprint -Footprint Area of 8.45 mm2
Low VF Provides Higher Efficiency and Extends Battery Life
Supplied in 12 mm Tape and Reel -12,000 Units per Reel
Low Thermal Resistance with Direct Thermal Path of Die on Exposed
Cathode Heat Sink SCHOTTKY BARRIER
RECTIFIER
1.0 AMPERES
40 VOLTS Mechanical Characteristics:
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• Powermite is JEDEC Registered as DO-216AA
Case: Molded Epoxy
Epoxy Meets UL94, VO at 1/8"
Weight: 62 mg (appoximately)
Device Marking: S40
Lead and Mounting Surface Temperature for Soldering Purposes,
260°°C Maximum for 10 Seconds Description:
The UPS140 Powermite Schottky rectifier is designed to offer optimized forward voltage characteristics for
battery powered portable products such as cellular and cordless phones, chargers, notebook computers,
printers, PDA's and PCMCIA cards. Typical applications include ac/dc and dc-dc converters, reverse battery
protection and "Oring" of multiple supply voltages.
The Powermite's patented heat sink design offers the same thermal performance rating as an SMA while being
50% smaller in footprint area and less than 1 mm in overall height. The result is a unique, highly efficient
Schottky rectifier in a space saving surface mount package. Maximum Ratings
RATING
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
Average Rectified Forward Current (At Rated VR, TC = 135°°C)
Peak Repetitive Forward Current
(At Rated VR, Square Wave, 100 KHz, TC = 135°°C
Non-Repetitive Peak Surge Current
(Non-Repetitive peak surge current, halfwave, single phase, 60 Hz)
Storage / Operating Case Temperature
Operating Junction Temperature
Voltage Rate of Change (Rated VR, TJ = 25°°C) SYMBOL
VRRM
VRWM
VR
IO VALUE
40 UNIT
V 1.0 A IFRM 2.0 A IFSM 50 Tstg, TC
TJ
dv/dt -55 to 150
-55 to 125
10,000 °C
°C
V/µ
µs 35
15
248 ° C/W A Thermal Characteristics
Thermal Resistance -Junction-to-Lead (Anode) (1}
Thermal Resistance -Junction-to-Tab (Cathode) (1}
Thermal Resistance -Junction-to-Ambient (1}
(1) Pulse Test: Pulse Width ≤ 250 µ s, Duty Cycle ≤ 2%.
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