ST890 ST Microelectronics, ST890 Datasheet

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ST890

Manufacturer Part Number
ST890
Description
1.2A CURRENT LIMITED HIGH SIDE
Manufacturer
ST Microelectronics
Datasheet

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DESCRIPTION
The ST890 is a low voltage, P-Channel MOSFET
power switch intended for high side load switching
applications.
This switch operates with inputs from 2.7V to
5.5V, making it ideal for both 3V and 5V systems.
Internal current limiting circuitry protects the input
supply
Table 1: Order Codes
Figure 1: Schematic Diagram
July 2005
ST890CDR
ST890BDR
2.7V TO 5.5V INPUT RANGE
PROGRAMMABLE CURRENT LIMIT UP TO
1.2A
LOW QUIESCENT CURRENT
THERMAL SHUTDOWN
FAULT INDICATOR OUTPUT
90mΩ (TYP.) ON RESISTANCE
SO-8 PACKAGE
ST890CD
ST890BD
Type
against
Temperature
overload.
-40 to 85 °C
-40 to 85 °C
0 to 70 °C
0 to 70 °C
Range
Thermal
1.2A CURRENT LIMITED HIGH SIDE WITH
overload
SO-8 (Tape & Reel)
SO-8 (Tape & Reel)
SO-8 (Tube)
SO-8 (Tube)
Package
protection limits power dissipation and junction
temperatures.
The ST890’s maximum current limits is 1.2A. The
current limit through the switch is programed with
a resistor from SET to ground. The ST890 is
available in SO-8 package. Main applications are:
PCMCIA slots, Access bus slots, Portable
equipment.
THERMAL SHUTDOWN
50parts per tube / 40tube per box
50parts per tube / 40tube per box
SO-8
2500 parts per reel
2500 parts per reel
Comments
Rev. 4
ST890
1/9

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ST890 Summary of contents

Page 1

... CURRENT LIMITED HIGH SIDE WITH protection limits power dissipation and junction temperatures. The ST890’s maximum current limits is 1.2A. The current limit through the switch is programed with a resistor from SET to ground. The ST890 is available in SO-8 package. Main applications are: PCMCIA slots, Access bus slots, Portable Thermal overload equipment ...

Page 2

... ST890 Table 2: Absolute Maximum Ratings Symbol V Supply Voltage I V Input Voltage at ON pin ON V Input Voltage at FAULT_N pin FAULT_N V Voltage at SET pin SET I Maximum Continuous Switching Current DS T Storage Temperature Range stg Operating Junction Temperature Range (C series Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied ...

Page 3

... Typ. Max. 2.7 5 2.0 2.4 2.6 100 75 120 90 130 > 0.8V 1.178 1.24 1.302 1.2 1.2 I LIM 970 1110 1300 0.8 2.0 2 0.15 1 130 15 Min. Typ. Max ST890 Unit V µA µ mΩ µA µA V µA °C °C Unit µs µs µs µs 3/9 ...

Page 4

... ST890 Figure 3: Typical Application Circuit TYPICAL PERFORMANCE CHARACTERISTICS (unless otherwise specified T Figure 4: ON Resistance vs Supply Voltage Figure 5: ON Resistance vs Supply Voltage 4/9 = 25°C j Figure 6: ON Resistance vs Temperature Figure 7: Output Voltage vs Input Voltage ...

Page 5

... Figure 8: Switching Waveforms, V =5V, R =0.6Ω Figure 9: Switching Waveforms, V =5V, R =0.32Ω ST890 5/9 ...

Page 6

... ST890 DIM. MIN. A 1.35 A1 0.10 A2 1.10 B 0.33 C 0.19 D 4. 5.80 h 0.25 L 0.40 k ddd 6/9 SO-8 MECHANICAL DATA mm. TYP MAX. 1.75 0.25 1.65 0.51 0.25 5.00 4.00 1.27 6.20 0.50 1.27 ˚ (max.) 8 0.1 inch MIN. TYP. 0.053 0.04 0.043 0.013 0.007 0.189 0.150 0.050 0.228 0.010 0.016 0016023/C MAX. 0.069 0.010 0.065 0.020 0.010 0.197 0.157 0.244 0.020 0.050 ...

Page 7

... Tape & Reel SO-8 MECHANICAL DATA DIM. MIN 12 8.1 Bo 5.5 Ko 2.1 Po 3.9 P 7.9 mm. TYP MAX. 330 13.2 0.504 0.795 2.362 22.4 8.5 0.319 5.9 0.216 2.3 0.082 4.1 0.153 8.1 0.311 inch MIN. TYP. MAX. 12.992 0.519 0.882 0.335 0.232 0.090 0.161 0.319 ST890 7/9 ...

Page 8

... ST890 Table 8: Revision History Date Revision 22-Jul-2005 4 8/9 Description of Changes Add 3 rows on Table 2. ...

Page 9

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