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STMPS2141, STMPS2151 STMPS2161, STMPS2171
Enhanced single channel power switches
Features

90 m high-side MOSFET switch 500/1000 mA continuous current Thermal and short-circuit protection with overcurrent logic output Operating range from 2.7 V to 5.5 V CMOS- and TTL-compatible enable inputs Undervoltage lockout (UVLO) 12 A maximum standby supply current Ambient temperature range, -40C to 85C 8 kV ESD protection Reverse current protection Fault-blanking
MSOP8 SOT23-5L SO-8
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 m 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.
Table 1.
Device summary
Order codes Current limit MSOP8(1) STMPS2141TTR STMPS2151TTR STMPS2161TTR STMPS2171TTR (mA) 500 500 1000 1000 Enable Active low Active high Active low Active high
SO-8 STMPS2141MTR STMPS2151MTR STMPS2161MTR STMPS2171MTR
SOT23-5L STMPS2141STR STMPS2151STR STMPS2161STR STMPS2171STR
1. MSOP8 package is also known as "TSSOP8"
January 2008
Rev 3
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www.st.com 30
Contents
STMPS2141, STMPS2151, STMPS2161, STMPS2171
Contents
1 2 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1 2.2 Pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3
Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.1 3.2 3.3 3.4 3.5 Fault blanking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Overcurrent/over-temperature protection . . . . . . . . . . . . . . . . . . . . . . . . . . 5 FAULT conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Reversed current blocking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 UVLO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4 5
Ambient temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5.1 5.2 Absolute maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
6 7
Electrical specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Detail device characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
7.1 Additional electrical charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
VOUT = 5.0 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 STMPS2161, STMPS2171 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 VOUT = 5.0 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
STMPS2141, STMPS2151 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
8 9
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
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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 15. Figure 16. Figure 17. Figure 18. 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 40. Figure 41. Figure 42. Figure 43. Figure 44. Figure 45. Figure 46. Figure 47. Figure 48. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 SOT23-5L, SO-8 and MSOP8 pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Voltage output turn on delay time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Voltage output turn off delay time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Current output turn on delay time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Current output turn off delay time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Voltage output turn on delay time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Voltage output turn off delay time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Current output turn on delay time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Current output turn off delay time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 UVLO rising . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 UVLO falling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 OC protection at VOUT = 3.0 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 OC protection at VOUT = 3.0 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 OC protection at VOUT = 5.0 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 OC protection at VOUT = 5.0 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 ICC vs VIN (enabled) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 ICC vs temperature (enabled) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 ICC vs VIN (disabled) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 ICC vs temperature (disabled) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 RDS ON vs VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 RDS ON vs temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 ILIMIT vs temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Switch leakage vs temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Output rise time vs. VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Output fall time vs. VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 UVLO vs temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Voltage output turn on delay time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Voltage output turn off delay time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Current output turn on delay time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Current output turn off delay time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Voltage output turn on delay time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Voltage output turn off delay time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Current output turn on delay time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Current output turn off delay time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 UVLO rising . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 UVLO falling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 OC protection at VOUT = 3.0 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 OC protection at VOUT = 3.0 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 OC protection at VOUT = 5.0 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 OC protection at VOUT = 5.0 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 ICC vs VIN (enabled) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 ICC vs temperature (enabled) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 ICC vs VIN (disabled) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 ICC vs temperature (disabled) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 RDS ON vs VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 RDS ON vs temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 ILIMIT vs temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3/30
List of figures Figure 49. Figure 50. Figure 51. Figure 52. Figure 53. Figure 54. Figure 55. Figure 56.
STMPS2141, STMPS2151, STMPS2161, STMPS2171
Switch leakage vs temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Output rise time vs. VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Output fall time vs. VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 UVLO vs temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 SOT23-5L package outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 SOT23-5L footprint recommendation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 SO-8 package outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 MSOP8 package outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
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STMPS2141, STMPS2151, STMPS2161, STMPS2171
List of tables
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. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 FAULT conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 SOT23-5L (160 C/W) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 MSOP8 (220 C/W) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 SO-8 (160 C/W). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 SOT-23-5L electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 MSO8/SO8 electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Current limit characteristics (VI = 5.5 V, IO = rated current, TJ = 25 C, unless otherwise specified) . . . . . . . . . . . . . . . 13 Supply current characteristics (VI = 5.5 V, IO = rated current, TJ = 25 C, unless otherwise specified) . . . . . . . . . . . . . . . 13 Thermal characteristics (VI = 5.5 V, IO = rated current, TJ = 25 C, unless otherwise specified) . . . . . . . . . . . . . . . 14 UVLO characteristics (VI = 5.5 V, IO = rated current, TJ = 25 C, unless otherwise specified) . . . . . . . . . . . . . . . 14 OC pin characteristics (VI = 5.5 V, IO = rated current, TJ = 25 C, unless otherwise specified) . . . . . . . . . . . . . . . 14 EN pin characteristics (VI = 5.5 V, IO = rated current, TJ = 25 C, unless otherwise specified) . . . . . . . . . . . . . . . 14 SOT23-5L mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 SOT23-5L footprint dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 SO-8 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 MSOP8 package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
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Block diagram
STMPS2141, STMPS2151, STMPS2161, STMPS2171
1
Block diagram
Figure 1. Block diagram
VIN Current sense EN Driver
VOUT
UVLO
Thermal sense
Fault blanking/reporting driver control unit
Fault
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STMPS2141, STMPS2151, STMPS2161, STMPS2171
Pin settings
2
2.1
Pin settings
Pin connections
Figure 2. SOT23-5L, SO-8 and MSOP8 pin connections
OUT GND FAULT
1 2 3
5
IN
4
SOT23-5L
EN
GND IN IN EN_N
1 2 3 4
8 7 6 5
OUT OUT OUT FAULT
SO-8 / MSOP8
2.2
Pin description
Table 2. Pin description
Pin number Name SO8 1 2 3 4 5 6 7 8 MSOP8 1 2 3 4 5 6 7 8 SOT23-5L 2 5 4 3 1 GND IN IN EN FAULT OUT OUT OUT Ground 2.7 V - 5.5 V input 2.7 V - 5.5 V input Enable for power switch Open drain FAULT indicator, active low Output of power switch Output of power switch Output of power switch Function
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Functional description
STMPS2141, STMPS2151, STMPS2161, STMPS2171
3
3.1
Functional description
Fault blanking
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. If the load fault persists beyond the 10 ms fault-blanking timeout, the FAULT output asserts "low". Load-transient faults less than 10 ms (typ.) do not cause a FAULT output assertion. Only current-limit faults are blanked. Die over-temperature faults and input voltage drops below the UVLO threshold cause an immediate fault output.
3.2
Overcurrent/over-temperature protection
In overcurrent or short-circuit condition, the switch limits the current at a value of about 120% of the rated current. If the temperature of the die goes above the limit value, the switch turns off.
3.3
FAULT conditions
In applications of power switch, 3 types of FAULT conditions are common. These fault conditions and the response of STMPS21x1 power switches are described in the following table. Table 3.
Fault Short circuit
FAULT conditions
Condition Output shorted to GND via resistance path of < 1 causing a rapid current , surge Output connected to a load that sinks current above threshold STMPS21x1 action Turn off output until short is removed, assert FAULT pin Reduces output voltage to reduce the current. Assert FAULT pin after a blanking period
Over-current
Overheating
Turn OFF output until temperature falls Temperature of junction exceeds 135C below 125C. Asserts FAULT pin due to any reason immediately
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STMPS2141, STMPS2151, STMPS2161, STMPS2171
Functional description
3.4
Reversed current blocking
When the switch is OFF, or when the STMPS device is un-powered (VCC = 0V), the switch behaves as an Hi-Z at the output pin, ensuring that no reverse current will flow into the device.
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.
3.5
UVLO
When input voltage drops below critical value, the power switch turns off to prevent improper operation due to low voltage.
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Ambient temperature
STMPS2141, STMPS2151, STMPS2161, STMPS2171
4
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 (160 C/W)
Max RON at 5V Power dissipation Temperature difference (Junction and Ambient) 6.2 Maximum ambient temperature (at Junction temperature 125 C) 118.8
Part number
Max current
STMPS2141 0.50 A STMPS2151 STMPS2161 1.00 A STMPS2171 130 m 130.0 mW 24.8 100.2 130 m 32.5 mW
Table 5.
MSOP8 (220 C/W)
Max current Max RON at 5 V Power dissipation Temperature difference (Junction and Ambient) 7.2 Maximum ambient temperature (at Junction temperature 125 C) 117.8
Part number
STMPS2141 0.50 A STMPS2151 STMPS2161 1.00 A STMPS2171 130 m 130.0 mW 28.6 96.4 130 m 32.5 mW
Table 6.
SO-8 (160 C/W)
Max RON Max current at 5V Power dissipation Temperature difference (Junction and Ambient) 5.2 Maximum ambient temperature (at Junction temperature 125 C) 124.8
Part number
STMPS2141 STMPS2151 STMPS2161 STMPS2171
0.50 A
130 m
32.5 m
1.00 A
130 m
130.0 m
20.8
104.2
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STMPS2141, STMPS2151, STMPS2161, STMPS2171
Maximum rating
5
Maximum rating
Stressing the device above the rating listed in the "Absolute Maximum Ratings" table 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 the Operating sections of this specification is not implied. Exposure to Absolute Maximum Rating conditions for extended periods may affect device reliability. Refer also to the STMicroelectronics SURE Program and other relevant quality documents.
5.1
Absolute maximum rating
Table 7.
Symbol VI VO VIENX IO ESD TJ TSTG TR TR TR
Absolute maximum ratings
Parameter Input voltage range Output voltage range EN Input voltage range Continuous output current ESD protection level Junction operating temperature Storage temperature Thermal resistance (MSOP8) Thermal resistance (SOT23-5L) Thermal resistance (SO-8) Value -0.3 - 6.0 -0.3 - (Vi+0.3) -0.3 - 6.0 Internally limited 8 -40 to 125 -55 to 150 220 191 160 kV C C C/W C/W C/W Unit V V V
5.2
Recommended operating conditions
Table 8.
Symbol VI VO IO (STMPS2141 STMPS2151) IO (STMPS2161 STMPS2171) Input voltage Output voltage Continuous output current
Recommended operating conditions
Value Parameter Min 2.7 0 0 Typ 5.0 5.0 Max 5.5 5.5 500 V V mA Unit
Continuous output current
0
-
1000
mA
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Electrical specification
STMPS2141, STMPS2151, STMPS2161, STMPS2171
6
Electrical specification
Table 9.
Symbol
SOT-23-5L electrical characteristics
Value Parameter Static drain source ON state resistance SOT23-5L package load = 500 mA (STMPS2141/ STMPS2151) load = 1000 mA (STMPS2161/ STMPS2171) Test condition Min Typ Max Unit
Rds on
VI = 2.7 V ; TJ = 25C;
120
160
m
VI = 5.0 V ; TJ = 25C; Rds on Static drain source ON state resistance VI = 2.7 V ; 40 < TJ < 125C VI = 5.0 V ; 40 < TJ < 125C Tr Output rise time VI = 5.0 V RL = 10 CL = 1 F 0.05
90
110 200 135 2
m m
mS
Table 10.
Symbol
MSO8P/SO8 electrical characteristics
Value Parameter Test condition Min Static drain source ON state resistance SO-8 and MSO8 package load = 500 mA VI = 2.7 V ; TJ = 25C; (STMPS2141/ STMPS2151) load = 1000 mA (STMPS2161/ STMPS2171) VI = 5.0 V ; TJ = 25C; Typ Max Unit
Rds on
130
170
m
110
125 200 140
m m
Rds on
Static drain source ON state resistance
VI = 2.7 V ; 40 < TJ < 125C VI = 5.0 V ; 40 < TJ < 125C
Tr
Output rise time
VI = 5.0 V RL = 10 CL = 1 F
0.05
2
mS
12/30
STMPS2141, STMPS2151, STMPS2161, STMPS2171 Table 11.
Electrical specification
Current limit characteristics (VI = 5.5 V, IO = rated current, TJ = 25C, unless otherwise specified)
Value Parameter Test condition Min Typ 0.80 Max 1.00 A Unit
Symbol
IOS Overcurrent limiting (STMPS2141 threshold STMPS2151) IOS Overcurrent limiting (STMPS2161 threshold STMPS2171) IOS (2141,2151) IOS (2161,2171) Short circuit output current Short circuit output current
0.60 VI = 5 V VOUT = 4.5 V 1.10
1.50
1.90
A
VI = 5 V, OUT connected to GND, device enabled into short circuit
0.9 1.8
A A
Table 12.
Supply current characteristics (VI = 5.5 V, IO = rated current, TJ = 25C, unless otherwise specified)
Value Parameter Test condition Min No load Typ 6.0 Max 12 15 40 60 70 2 A 5 A A Unit
Symbol
Ioff
Switch turned off
No load; -40 < TJ < 125C No load
Ion
Switch turned on
No load; -40 < TJ < 125C Output grounded, switch is OFF
Ileakage
Output leakage current (1)
Output grounded, switch is OFF; -40 < TJ < 125C Input grounded, Output connected to 5.5 V, 25C Input grounded, Output connected to 5.5 V, 125C 0.5
2 A
Ireverse
Reversed leakage current
0.5
3
1. Ileakage = Ioff-ground - Ioff, where Ioff-ground = current into Vin when switch is off and output is grounded
13/30
Electrical specification Table 13.
STMPS2141, STMPS2151, STMPS2161, STMPS2171
Thermal characteristics (VI = 5.5 V, IO = rated current, TJ = 25C, unless otherwise specified)
Value Parameter Thermal shutdown threshold Recovery from thermal shutdown 120 14 Test condition Min Typ Max 145 C C C Unit
Symbol
T1 T2 Hysteresis
Table 14.
UVLO characteristics (VI = 5.5 V, IO = rated current, TJ = 25C, unless otherwise specified)
Value Parameter Undervoltage lockout threshold Test condition Min Typ Max 2.5 75 110 V mV Unit
Symbol
VUVLO Hysteresis
2.0 40
Table 15.
OC pin characteristics (VI = 5.5 V, IO = rated current, TJ = 25C, unless otherwise specified)
Value Parameter OCx assertion and deassertion Output low voltage Off current IO = 5 mA VOC = 2.7 V, 5.5 V (No OC Condition) Test condition Min Typ 8 Max 15 0.4 1.0 ms V A Unit
Symbol
OC Blanking VO IOFF
4
Table 16.
EN pin characteristics (VI = 5.5 V, IO = rated current, TJ = 25C, unless otherwise specified)
Value Parameter High level input voltage Low level input voltage VI = 2.7 V to 4.5 V Input current Turn-ON time(1) Turn-OFF time (1) VIENX = 0 V or VI RL = 10 CL = 100 mF RL = 10 CL = 100 mF -0.5 0.4 0.5 5 10 V uA ms ms Test condition Min Typ Max V 0.8 V VI = 2.7 V to 5.5 V VI = 4.5 V to 5.5 V 2.0 Unit
Symbol VIH VIL II tON tOFF
1. Not tested in production, specified by design
14/30
STMPS2141, STMPS2151, STMPS2161, STMPS2171
Detail device characteristics
7
7.1
7.1.1
Figure 3.
Detail device characteristics
STMPS2141, STMPS2151 additional electrical charts
Turn on/off characteristics at VOUT = 5.0 V
Voltage output turn on delay time Figure 4. Voltage output turn off delay time
Figure 5.
Current output turn on delay time
Figure 6.
Current output turn off delay time
15/30
Detail device characteristics
STMPS2141, STMPS2151, STMPS2161, STMPS2171
7.1.2
Figure 7.
Turn on/off characteristics at VOUT = 3.0 V
Voltage output turn on delay time Figure 8. Voltage output turn off delay time
Figure 9.
Current output turn on delay time
Figure 10. Current output turn off delay time
7.1.3
UVLO
Figure 12. UVLO falling
Figure 11. UVLO rising
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STMPS2141, STMPS2151, STMPS2161, STMPS2171
Detail device characteristics
7.1.4
OC protection characteristics
Figure 14. OC protection at VOUT = 3.0 V
Figure 13. OC protection at VOUT = 3.0 V
Figure 15. OC protection at VOUT = 5.0 V
Figure 16. OC protection at VOUT = 5.0 V
7.1.5
Other electrical characteristics
Figure 18. ICC vs temperature (enabled)
Figure 17. ICC vs VIN (enabled)
17/30
Detail device characteristics
STMPS2141, STMPS2151, STMPS2161, STMPS2171
Figure 19. ICC vs VIN (disabled)
Figure 20. ICC vs temperature (disabled)
Figure 21. RDS ON vs VIN
Figure 22. RDS ON vs temperature
Figure 23. ILIMIT vs temperature
Figure 24. Switch leakage vs temperature
18/30
STMPS2141, STMPS2151, STMPS2161, STMPS2171
Detail device characteristics
Figure 25. Output rise time vs. VIN
Figure 26. Output fall time vs. VIN
Figure 27. UVLO vs temperature
19/30
Detail device characteristics
STMPS2141, STMPS2151, STMPS2161, STMPS2171
7.2
7.2.1
STMPS2161, STMPS2171 electrical charts
Turn on/off characteristics at VOUT = 5.0 V
Figure 29. Voltage output turn off delay time
Figure 28. Voltage output turn on delay time
Figure 30. Current output turn on delay time
Figure 31. Current output turn off delay time
20/30
STMPS2141, STMPS2151, STMPS2161, STMPS2171
Detail device characteristics
7.2.2
Turn on/off characteristics at VOUT = 3.0 V
Figure 33. Voltage output turn off delay time
Figure 32. Voltage output turn on delay time
Figure 34. Current output turn on delay time
Figure 35. Current output turn off delay time
7.2.3
UVLO
Figure 37. UVLO falling
Figure 36. UVLO rising
21/30
Detail device characteristics
STMPS2141, STMPS2151, STMPS2161, STMPS2171
7.2.4
OC protection characteristics
Figure 39. OC protection at VOUT = 3.0 V
Figure 38. OC protection at VOUT = 3.0 V
Figure 40. OC protection at VOUT = 5.0 V
Figure 41. OC protection at VOUT = 5.0 V
22/30
STMPS2141, STMPS2151, STMPS2161, STMPS2171
Detail device characteristics
7.2.5
Other electrical characteristics
Figure 43. ICC vs temperature (enabled)
Figure 42. ICC vs VIN (enabled)
Figure 44. ICC vs VIN (disabled)
Figure 45. ICC vs temperature (disabled)
Figure 46. RDS ON vs VIN
Figure 47. RDS ON vs temperature
23/30
Detail device characteristics
STMPS2141, STMPS2151, STMPS2161, STMPS2171
Figure 48. ILIMIT vs temperature
Figure 49. Switch leakage vs temperature
Figure 50. Output rise time vs. VIN
Figure 51. Output fall time vs. VIN
Figure 52. UVLO vs temperature
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STMPS2141, STMPS2151, STMPS2161, STMPS2171
Package mechanical data
8
Package mechanical data
In order to meet environmental requirements, ST offers these devices in ECOPACK(R) packages. These packages have a Lead-free second level interconnect. The category of second level interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com. Figure 53. SOT23-5L package outline
.
Table 17.
Symbol.
SOT23-5L mechanical data
millimeters Min Typ Max 1.45 Min 35.4 inches Typ Max 57.1
A
0.90
A1 A2 b C D E e H L
0.00 0.90 0.35 0.09 2.80 1.50 0.95 2.60 0.10
0.10 1.30 0.50 0.20 3.00 1.75
0.0 35.4 13.7 3.5 110.2 59.0 37.4
3.9 51.2 19.7 7.8 118.1 68.8
3.00 0.60
102.3 3.9
118.1 23.6
25/30
Package mechanical data
STMPS2141, STMPS2151, STMPS2161, STMPS2171
Figure 54. SOT23-5L footprint recommendation
Table 18.
SOT23-5L footprint dimensions
Footprint data Symbol A B C D E F millimeters 3.50 1.10 0.60 0.95 1.20 2.30 inches 0.138 0.043 0.024 0.037 0.047 0.090
26/30
STMPS2141, STMPS2151, STMPS2161, STMPS2171 Figure 55. SO-8 package outline
Package mechanical data
0016023 C
1. Drawing not to scale
Table 19.
Symbol
SO-8 mechanical data
millimeters Min Typ Max 1.75 Min 0.053 inches Typ Max 0.069
A
1.35
A1 A2 B C
D (1)
0.10 1.10 0.33 0.19 4.80 3.80 1.27 5.80 0.25 0.40
0.25 1.65 0.51 0.25 5.00 4.00
0.004 0.043 0.013 0.007 0.189 0.15 0.050
0.010 0.065 0.020 0.010 0.197 0.157
E e H h L k ddd
6.20 0.50 1.27
0.228 0.010 0.016
0.244 0.020 0.050
0 (min.), 8 (max.) 0.10 0.004
1. Dimension D does not include mold flash, protrusions or gate burrs. Mold flash, potrusions or gate burrs shall not exceed 0.15mm (.006inch) in total (both sides).
27/30
Package mechanical data
STMPS2141, STMPS2151, STMPS2161, STMPS2171
Figure 56. MSOP8 package outline
D
8
5 E1 E
c
1
4
k
A1 A ccc b e A2
L L1
L2
POA 7113595
1. Drawing not to scale.
Table 20.
Symbol
MSOP8 package mechanical data
millimeters Min Typ Max 1.10 0.15 0.95 0.40 0.23 3.10 5.15 3.10 Min inches Typ Max 0.043 0.006 0.037 0.016 0.009 0.122 0.199 0.122
A A1 A2 b c D E E1 e L L1 K ccc
-
0.05 0.75 0.25 0.13 2.90 4.65 2.90
- -
0.85
-
0.002 0.031 0.010 0.005 0.114 0.187 0.114
- 0.004
0.034 0.013 0.007 0.118 0.193 0.118 0.026 0.022 0.037
- -
3.00 4.90 3.00 0.65 0.55 0.95
-
0.40
-
0.70
-
0.016
-
0.028
-
0
-
6 0.10
-
0
-
-
6 0.004
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STMPS2141, STMPS2151, STMPS2161, STMPS2171
Revision history
9
Revision history
Table 21.
Date 01-Aug-2007 18-Dec-2007
Document revision history
Revision 1 2 Initial release. Minor text changes, updated Figure 53 on page 25, added Section 7: Detail device characteristics on page 15. Footnote added in Table 1 on page 1, replaced Figure 56 on page 28 and Table 20 on page 28, TSSOP8 package name replaced with MSOP8. Changes
24-Jan-2008
3
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STMPS2141, STMPS2151, STMPS2161, STMPS2171
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