ST890_05 STMICROELECTRONICS [STMicroelectronics], ST890_05 Datasheet

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ST890_05

Manufacturer Part Number
ST890_05
Description
1.2A CURRENT LIMITED HIGH SIDE WITH THERMAL SHUTDOWN
Manufacturer
STMICROELECTRONICS [STMicroelectronics]
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_05 Summary of contents

Page 1

TO 5.5V INPUT RANGE I PROGRAMMABLE CURRENT LIMIT 1.2A LOW QUIESCENT CURRENT I THERMAL SHUTDOWN I FAULT INDICATOR OUTPUT I 90mΩ (TYP.) ON RESISTANCE I SO-8 PACKAGE I DESCRIPTION The ST890 is a low voltage, P-Channel ...

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 ...

Page 3

Table 6: Electrical Characteristics (V ues are °C) A Symbol Parameter V Operating Voltage Quiescent Supply CC Current I OFF Quiescent Supply (CCOFF) Current V Undervoltage Lockout ULO V Undervoltage Lockout HYST Hysteresys ...

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 ...

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 ...

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 ...

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

Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. ...

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