Datasheet

ManualsBrandsST ManualsIntegrated Circuits (ICs)Single Channel Power Distribution Switch 5V SOT-23

This is information on a product in full production.

January 2013 Doc ID 13793 Rev 6 1/37

STMPS2141, STMPS2151, STMPS2161,

STMPS2171

Enhanced single channel power switches

Datasheet − production data

Features

■ 90 mΩ high-side MOSFET switch

■ 500/1000 mA continuous current

■ Thermal and short-circuit protection with

overcurrent logic output

■ Operating range from 2.7 to 5.5 V

■ CMOS and TTL compatible enable input

■ Undervoltage lockout (UVLO)

■ 12 µA maximum standby supply current

■ Ambient temperature range, -40 to 85 °C

■ 8 kV ESD protection

■ Reverse current protection

■ Fault blanking

■ UL recognized components (UL file number:

E354278)

Description

The STMPS2141, STMPS2151, STMPS2161,

STMPS2171 power distribution switches are

intended for applications where heavy capacitive

loads and short-circuits are likely to be

encountered. These devices incorporate 90 mΩ

N-channel MOSFET high-side power switches for

power distribution. These switches are controlled

by a logic enable input.

When the output load exceeds the current limit

threshold or a short is present, the device limits

the output current to a safe level by switching into

a constant current mode. When continuous heavy

overloads and short-circuits increase the power

dissipation in the switch, causing the junction

temperature to rise, a thermal protection circuit

shuts the switch off to prevent damage. Recovery

from a thermal shutdown is automatic once the

device has cooled sufficiently. Internal circuitry

ensures the switch remains off until a valid input

voltage is present.

SOT23-5L

SO-8

MSOP8

Table 1. Device summary

Order codes

Rated continuous output current

(mA)

Enable

SO-8 SOT23-5L MSOP8

(1)

STMPS2141MTR STMPS2141STR STMPS2141TTR 500 Active low

STMPS2151MTR STMPS2151STR STMPS2151TTR 500 Active high

STMPS2161MTR STMPS2161STR STMPS2161TTR 1000 Active low

STMPS2171MTR STMPS2171STR STMPS2171TTR 1000 Active high

1. MSOP8 package is also known as “TSSOP8”.

www.st.com

Summary of content (37 pages)

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STMPS2141, STMPS2151, STMPS2161, STMPS2171 Enhanced single channel power switches Datasheet − production data Features ■ 90 mΩ high-side MOSFET switch ■ 500/1000 mA continuous current ■ Thermal and short-circuit protection with overcurrent logic output ■ Operating range from 2.7 to 5.
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Contents STMPS2141, STMPS2151, STMPS2161, STMPS2171 Contents 1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2 Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3 2.1 Pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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STMPS2141, STMPS2151, STMPS2161, STMPS2171 Contents 8 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 9 Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 10 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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List of tables STMPS2141, STMPS2151, STMPS2161, STMPS2171 List of tables Table 1. Table 2. Table 3. Table 4. Table 5. Table 6. Table 7. Table 8. Table 9. Table 10. Table 11. Table 12. Table 13. Table 14. Table 15. Table 16. Table 17. Table 18. Table 19. Table 20. Table 21. Table 22. Table 23. 4/37 Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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STMPS2141, STMPS2151, STMPS2161, STMPS2171 List of figures List of figures Figure 1. Figure 2. Figure 3. Figure 4. Figure 5. Figure 6. Figure 7. Figure 8. Figure 9. Figure 10. Figure 11. Figure 12. Figure 13. Figure 14. Figure 17. Figure 18. Figure 15. Figure 16. Figure 19. Figure 20. Figure 21. Figure 22. Figure 23. Figure 24. Figure 25. Figure 26. Figure 27. Figure 28. Figure 29. Figure 30. Figure 31. Figure 32. Figure 33. Figure 34. Figure 35. Figure 36. Figure 37. Figure 38. Figure 39. Figure 42.
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List of figures Figure 49. Figure 50. Figure 51. Figure 52. Figure 53. Figure 54. Figure 55. Figure 56. Figure 57. Figure 58. Figure 59. Figure 60. 6/37 STMPS2141, STMPS2151, STMPS2161, STMPS2171 Switch leakage vs. temperature (STMPS2161/2171) . . . . . . Output rise time vs. VIN (STMPS2161/2171) . . . . . . . . . . . . Output fall time vs. VIN (STMPS2161/2171) . . . . . . . . . . . . . UVLO vs. temperature (STMPS2161/2171) . . . . . . . . . . . . . SOT23-5L package outline . . . . . . . . . . . . . . .
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STMPS2141, STMPS2151, STMPS2161, STMPS2171 1 Block diagram Block diagram Figure 1.
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Pin settings STMPS2141, STMPS2151, STMPS2161, STMPS2171 2 Pin settings 2.1 Pin connections Figure 2. SOT23-5L, SO-8 and MSOP8 pin connections OUT 1 GND 2 FAULT 3 5 IN 4 EN SOT23-5L GND 1 8 OUT IN 2 7 OUT IN 3 6 OUT EN 4 5 FAULT SO-8 / MSOP8 2.2 Pin description Table 2. Pin description Pin number Name 8/37 Function SO-8 MSOP8 SOT23-5L 1 1 2 GND 2 2 5 IN 2.7 - 5.5 V input 3 3 - IN 2.7 - 5.
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STMPS2141, STMPS2151, STMPS2161, STMPS2171 3 Functional description 3.1 Fault blanking Functional description The STMPS devices feature a 10 ms fault blanking. Fault blanking allows current limit faults, including momentary short-circuit faults that occur when hot-swapping a capacitive load, and also ensures that no fault is issued during power-up. When a load transient causes the device to enter current limit, an internal counter starts.
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Functional description 3.4 STMPS2141, STMPS2151, STMPS2161, STMPS2171 Reversed current blocking When the switch is OFF (disabled through the EN pin), or when the STMPS device is unpowered (VIN = 0 V) the switch behaves as an Hi-Z at the output pin, ensuring that no reverse current will flow into the device when VIN < VOUT. Note: In the case where the switch is ON, and a voltage higher than VIN is applied to the OUT pin, a reverse current occurs. This operating condition is not allowed. 3.
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STMPS2141, STMPS2151, STMPS2161, STMPS2171 4 Ambient temperature Ambient temperature In “Enable” operating mode, an amount of power is dissipated as heat in the power switch due to the on-resistance. The power dissipation is: P = I2R. Table 4. SOT23-5L (191 °C/W) Part number Max. RON at 5 V Power dissipation 0.50 A 135 mΩ 1.00 A Max. current Temperature difference Maximum ambient temperature (junction - ambient) (at junction temperature 125 °C) 33.8 mW 6.5 118.5 135 mΩ 135.0 mW 25.
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Maximum ratings 5 STMPS2141, STMPS2151, STMPS2161, STMPS2171 Maximum ratings Stressing the device above the rating listed in Table 7: Absolute maximum ratings may cause permanent damage to the device. These are stress ratings only and operation of the device at these or any other conditions above those indicated in Section 5.2: Recommended operating conditions of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. 5.
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STMPS2141, STMPS2151, STMPS2161, STMPS2171 6 Electrical specifications Electrical specifications Table 9. SOT-23-5L electrical characteristics Value Symbol RON RON tr Table 10. Parameter Test condition Static drain source ON state resistance SOT23-5L package load = 500 mA (STMPS2141/ STMPS2151) load = 1000 mA (STMPS2161/ STMPS2171) Static drain source ON state resistance Typ. Max. VIN = 2.7 V; TJ = 25 °C; − 120 160 mΩ VIN = 5.0 V; TJ = 25 °C; − 90 110 mΩ VIN = 2.
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Electrical specifications Table 11. STMPS2141, STMPS2151, STMPS2161, STMPS2171 Current limit characteristics (VIN = 5.5 V, IOUT = rated current, TJ = 25 °C, unless otherwise specified) Value Symbol Parameter Test condition IOS Overcurrent limiting (STMPS2141 threshold STMPS2151) IOS Overcurrent limiting (STMPS2161 threshold STMPS2171) IOS Short-circuit output (2141, 2151) current IOS Short-circuit output (2161, 2171) current Table 12. Unit Min. Typ. Max. 0.60 0.80 1.00 A 1.10 1.50 1.
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STMPS2141, STMPS2151, STMPS2161, STMPS2171 Table 13. Electrical specifications Thermal characteristics (VIN = 5.5 V, IOUT = rated current, TJ = 25 °C, unless otherwise specified) Value Symbol Parameter T1 Thermal shutdown threshold T2 Recovery from thermal shutdown Hysteresis Table 14. Test condition - Unit Min. Typ. Max. − − 145 °C 120 − − °C − 14 − °C UVLO characteristics (VIN = 5.
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Detail device characteristics STMPS2141, STMPS2151, STMPS2161, STMPS2171 7 Detail device characteristics 7.1 STMPS2141, STMPS2151 additional electrical charts The waveforms displayed in Section 7.1 are captured with the STMPS2141 device. The STMPS2151 device is expected to have the same characteristics with EN in the opposite polarity. 7.1.1 Turn-on/off characteristics at VOUT = 5.0 V Figure 3. Voltage output turn-on delay time (STMPS2141/2151, 5 V) Figure 4.
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STMPS2141, STMPS2151, STMPS2161, STMPS2171 Detail device characteristics 7.1.2 Turn-on/off characteristics at VOUT = 3.0 V Figure 7. Voltage output turn-on delay time (STMPS2141/2151, 3 V) Figure 8. Figure 9. Current output turn-on delay time (STMPS2141/2151, 3 V) Figure 10.
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Detail device characteristics 7.1.3 STMPS2141, STMPS2151, STMPS2161, STMPS2171 UVLO Figure 11. UVLO rising (STMPS2141/2151) 7.1.4 OC protection characteristics Figure 13. OC protection at VOUT = 3.0 V (STMPS2141/2151) 18/37 Figure 12. UVLO falling (STMPS2141/2151) Figure 14. OC protection at VOUT = 3.
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STMPS2141, STMPS2151, STMPS2161, STMPS2171 Figure 15. OC protection at VOUT = 5.0 V (STMPS2141/2151) 7.1.5 Detail device characteristics Figure 16. OC protection at VOUT = 5.0 V (STMPS2141/2151 - detail) Other electrical characteristics Figure 17. ICC vs. VIN (enabled) (STMPS2141/2151) Figure 18. ICC vs. temperature (enabled) (STMPS2141/2151) Figure 19. ICC vs. VIN (disabled) (STMPS2141/2151) Figure 20. ICC vs.
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Detail device characteristics STMPS2141, STMPS2151, STMPS2161, STMPS2171 Figure 21. RON vs. VIN (STMPS2141/2151) Figure 22. RON vs. temperature (STMPS2141/2151) Figure 23. IOS vs. temperature (STMPS2141/2151) Figure 24. Switch leakage vs. temperature (STMPS2141/2151) Figure 25. Output rise time vs. VIN (STMPS2141/2151) Figure 26. Output fall time vs.
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STMPS2141, STMPS2151, STMPS2161, STMPS2171 Detail device characteristics Figure 27. UVLO vs.
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Detail device characteristics 7.2 STMPS2141, STMPS2151, STMPS2161, STMPS2171 STMPS2161, STMPS2171 electrical charts The waveforms displayed in Section 7.2 are captured with the STMPS2161 device. The STMPS2171 device is expected to have the same characteristics with EN in the opposite polarity. 7.2.1 Turn-on/off characteristics at VOUT = 5.0 V Figure 28. Voltage output turn-on delay time (STMPS2161/2171, 5 V) Figure 29. Voltage output turn-off delay time (STMPS2161/2171, 5 V) Figure 30.
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STMPS2141, STMPS2151, STMPS2161, STMPS2171 7.2.2 Detail device characteristics Turn-on/off characteristics at VOUT = 3.0 V Figure 32. Voltage output turn-on delay time (STMPS2161/2171, 3 V) Figure 33. Voltage output turn-off delay time (STMPS2161/2171, 3 V) Figure 34. Current output turn-on delay time (STMPS2161/2171, 3 V) Figure 35.
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Detail device characteristics 7.2.3 STMPS2141, STMPS2151, STMPS2161, STMPS2171 UVLO Figure 36. UVLO rising (STMPS2161/2171) 7.2.4 OC protection characteristics Figure 38. OC protection at VOUT = 3.0 V (STMPS2161/2171) 24/37 Figure 37. UVLO falling (STMPS2161/2171) Figure 39. OC protection at VOUT = 3.
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STMPS2141, STMPS2151, STMPS2161, STMPS2171 Figure 40. OC protection at VOUT = 5.0 V (STMPS2161/2171) 7.2.5 Detail device characteristics Figure 41. OC protection at VOUT = 5.0 V (STMPS2161/2171- detail) Other electrical characteristics Figure 42. ICC vs. VIN (enabled) (STMPS2161/2171) Figure 43. ICC vs. temperature (enabled) (STMPS2161/2171) Figure 44. ICC vs. VIN (disabled) (STMPS2161/2171) Figure 45. ICC vs.
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Detail device characteristics STMPS2141, STMPS2151, STMPS2161, STMPS2171 Figure 46. RON vs. VIN (STMPS2161/2171) Figure 47. RON vs. temperature (STMPS2161/2171) Figure 48. IOS vs. temperature (STMPS2161/2171) Figure 49. Switch leakage vs. temperature (STMPS2161/2171) Figure 50. Output rise time vs. VIN (STMPS2161/2171) Figure 51. Output fall time vs.
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STMPS2141, STMPS2151, STMPS2161, STMPS2171 Detail device characteristics Figure 52. UVLO vs.
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Package mechanical data 8 STMPS2141, STMPS2151, STMPS2161, STMPS2171 Package mechanical data In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK® packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product status are available at: www.st.com. ECOPACK is an ST trademark. Figure 53. SOT23-5L package outline Table 17.
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STMPS2141, STMPS2151, STMPS2161, STMPS2171 Package mechanical data Figure 54. SOT23-5L footprint recommendations Table 18. SOT23-5L footprint dimensions Footprint data Dimensions Symbol Millimeters Inches A 3.50 0.138 B 1.10 0.043 C 0.60 0.024 D 0.95 0.037 E 1.20 0.047 F 2.30 0.090 Figure 55.
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Package mechanical data STMPS2141, STMPS2151, STMPS2161, STMPS2171 Figure 56. SO-8 package outline 0016023 C 1. Drawing is not to scale. Table 19. SO-8 mechanical data Dimensions Symbol Millimeters Inches Min. Typ. Max. Min. Typ. Max. A 1.35 − 1.75 0.053 − 0.069 A1 0.10 − 0.25 0.004 − 0.010 A2 1.10 − 1.65 0.043 − 0.065 B 0.33 − 0.51 0.013 − 0.020 C 0.19 − 0.25 0.007 − 0.010 D (1) 4.80 − 5.00 0.189 − 0.197 E 3.80 − 4.00 0.15 − 0.157 e − 1.
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STMPS2141, STMPS2151, STMPS2161, STMPS2171 Package mechanical data Figure 57.
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Package mechanical data STMPS2141, STMPS2151, STMPS2161, STMPS2171 Figure 58. MSOP8 package outline D 8 5 c E1 1 E 4 k A1 A L L2 A2 L1 ccc b e POA 7113595 1. Drawing not to scale. Table 20. MSOP8 package mechanical data Dimensions Symbol Inches Min. Typ. Max. Min. Typ. Max. A − − 1.10 − − 0.043 A1 0.05 − 0.15 0.002 0.004 0.006 A2 0.75 0.85 0.95 0.031 0.034 0.037 b 0.25 − 0.40 0.010 0.013 0.016 c 0.13 − 0.23 0.005 0.007 0.009 D 2.90 3.00 3.
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STMPS2141, STMPS2151, STMPS2161, STMPS2171 Package mechanical data Figure 59.
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Package mechanical data STMPS2141, STMPS2151, STMPS2161, STMPS2171 Figure 60. Reel information Table 21. Reel mechanical data Dimensions (mm) Symbol Min. Typ. Max. − − 180 330 C 12.8 13.0 13.2 D 20.2 − − N 60 − − T − − 22.
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STMPS2141, STMPS2151, STMPS2161, STMPS2171 9 Ordering information Ordering information Table 22.
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Revision history 10 STMPS2141, STMPS2151, STMPS2161, STMPS2171 Revision history Table 23. 36/37 Document revision history Date Revision Changes 01-Aug-2007 1 Initial release. 18-Dec-2007 2 Minor text changes, updated Figure 53 on page 28, added Section 7: Detail device characteristics on page 16. 24-Jan-2008 3 Footnote added in Table 1 on page 1, replaced Figure 58 on page 32 and Table 20 on page 32, TSSOP8 package name replaced with MSOP8.
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STMPS2141, STMPS2151, STMPS2161, STMPS2171 Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale.