ST STMPS2242, STMPS2252, STMPS2262, STMPS2272 User Manual

STMPS2242, STMPS2252 STMPS2262, STMPS2272

Enhanced dual-channel power switches

Features

■100 mΩ high-side MOSFET switch

■500 mA/1000 mA continuous current per channel

■Thermal protection

■Independent short-circuit protection with overcurrent logic output

■Operating range from 2.7 V to 5.5 V

■CMOS and TTL compatible inputs

■2.5 ms typical rise time

■Undervoltage lockout

■13 µA maximum standby supply current

■Ambient temperature range: -40 °C to 85 °C

■8 kV ESD protection

■Reverse current protection

■Fault blanking

Description

The STMPS2242/2252/2262/2272 power distribution switches are intended for applications where heavy capacitive loads and short-circuits are likely to be encountered. These devices incorporate 100 mΩ MOSFET high-side power switches for power distribution systems that require multiple power switches in a single package.

Table 1. Device summary

SO-8

MSOP8

Each switch is controlled by an independent logic enable input. When the output load exceeds the current limit threshold or a short is present, these devices limit the output current to a safe level by switching into a constant current mode, pulling the overcurrent (OCx) logic output low. 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 off the switch to prevent damage. Recovery from a thermal shutdown is automatic once the device has cooled sufficiently. Internal circuitry ensures the switch remains off until valid input voltage is present.

	Order code		Current limit	Enable	Packing
			(mA)
	SO-8	MSOP8(1)
	STMPS2242MTR	STMPS2242TTR	500	Active low	Tape and reel
	STMPS2252MTR	STMPS2252TTR	500	Active high	Tape and reel
	STMPS2262MTR	STMPS2262TTR	1000	Active low	Tape and reel
	STMPS2272MTR	STMPS2272TTR	1000	Active high	Tape and reel
	1. MSOP8 is also known as TSSOP8.
	January 2011		Doc ID 15050 Rev 3		1/42

www.st.com

Contents	STMPS2242, STMPS2252, STMPS2262, STMPS2272

Contents

1	Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		. 6
2	Pin descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		7
3	Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		8
	3.1	Fault blanking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	8
	3.2	Overcurrent/overtemperature protection . . . . . . . . . . . . . . . . . . . . . . . . . .	8
	3.3	Reverse current blocking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	8
	3.4	UVLO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	8
4	Maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		9
	4.1	Absolute maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	9
	4.2	Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	9
5	Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		10
6	Typical operating characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		13
	6.1	STMPS2242, STMPS2252 characteristics . . . . . . . . . . . . . . . . . . . . . . . .	13

6.1.1 Turn-on/off characteristics for VI = 3 V, RLOAD = 6 Ω . . . . . . . . . . . . . . . 13 6.1.2 Turn-on/off characteristics for VI = 5 V, RLOAD = 10 Ω . . . . . . . . . . . . . . 16 6.1.3 UVLO characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 6.1.4 Overcurrent protection characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . 21 6.1.5 Other electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

6.2 STMPS2262, STMPS2272 characteristics . . . . . . . . . . . . . . . . . . . . . . . . 24

6.2.1 Turn-on/off characteristics for VI = 3 V, RLOAD = 3 Ω . . . . . . . . . . . . . . . 24 6.2.2 Turn-on/off characteristics for VI = 5 V, RLOAD = 5 Ω . . . . . . . . . . . . . . . 27 6.2.3 UVLO characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 6.2.4 Overcurrent protection characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . 32 6.2.5 Other electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

7	Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		35
	7.1	Input and output capacitors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	35
8	Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		36

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STMPS2242, STMPS2252, STMPS2262, STMPS2272		Contents
9	Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . 41

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List of tables	STMPS2242, STMPS2252, STMPS2262, STMPS2272

List of tables

Table 1. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Table 2. Pin descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Table 3. Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Table 4. Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Table 5. Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Table 6. Current limit characteristics

(VI = 5.5 V, IO = rated current, TJ = 25°C, unless otherwise specified) . . . . . . . . . . . . . . . 10 Table 7. Supply current characteristics

(VI = 5.5 V, IO = rated current, TJ = 25°C, unless otherwise specified) . . . . . . . . . . . . . . . 11 Table 8. Thermal characteristics

(VI = 5.5 V, IO = rated current, TJ = 25°C, unless otherwise specified) . . . . . . . . . . . . . . . 11 Table 9. UVLO characteristics

(VI = 5.5 V, IO = rated current, TJ = 25°C, unless otherwise specified) . . . . . . . . . . . . . . . 12 Table 10. OCx pin characteristics

(VI = 5.5 V, IO = rated current, TJ = 25°C, unless otherwise specified) . . . . . . . . . . . . . . . 12 Table 11. ENx pin characteristics

(VI = 5.5 V, IO = rated current, TJ = 25°C, unless otherwise specified) . . . . . . . . . . . . . . . 12 Table 12. SO-8 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Table 13. MSOP8 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Table 14. Reel mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Table 15. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

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STMPS2242, STMPS2252, STMPS2262, STMPS2272	List of figures

List of figures

Figure 1. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Figure 2. Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Figure 3. Turn-on for CLOAD = 1 µF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Figure 4. Turn-on for CLOAD = 100 µF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Figure 5. Turn-on for CLOAD = 470 µF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Figure 6. Turn-off for CLOAD = 1 µF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Figure 7. Turn-off for CLOAD = 100 µF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Figure 8. Turn-off for CLOAD = 470 µF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Figure 9. Turn-on for CLOAD = 1 µF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Figure 10. Turn-on for CLOAD = 100 µF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Figure 11. Turn-on for CLOAD = 470 µF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Figure 12. Turn-off for CLOAD = 1 µF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Figure 13. Turn-off for CLOAD = 100 µF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Figure 14. Turn-off for CLOAD = 470 µF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Figure 15. UVLO, VI rising . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Figure 16. UVLO, VI falling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Figure 17. Overcurrent protection characteristics, VI = 3 V, RLOAD = 2.2 Ω . . . . . . . . . . . . . . . . . . . . 21 Figure 18. Overcurrent protection characteristics, VI = 5 V, RLOAD = 2.2 Ω . . . . . . . . . . . . . . . . . . . . 21 Figure 19. ICC versus VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Figure 20. tr versus VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Figure 21. tf versus VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Figure 22. Rds(on) versus VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Figure 23. Turn-on for CLOAD = 1 µF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Figure 24. Turn-on for CLOAD = 100 µF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Figure 25. Turn-on for CLOAD = 470 µF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Figure 26. Turn-off for CLOAD = 1 µF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Figure 27. Turn-off for CLOAD = 100 µF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Figure 28. Turn-off for CLOAD = 470 µF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Figure 29. Turn-on for CLOAD = 1 µF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Figure 30. Turn-on for CLOAD = 100 µF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Figure 31. Turn-on for CLOAD = 470 µF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Figure 32. Turn-off for CLOAD = 1 µF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Figure 33. Turn-off for CLOAD = 100 µF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Figure 34. Turn-off for CLOAD = 470 µF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Figure 35. UVLO, VI rising . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Figure 36. UVLO, VI falling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Figure 37. Overcurrent protection characteristics, VI = 3 V, RLOAD = 1 Ω . . . . . . . . . . . . . . . . . . . . . . 32 Figure 38. Overcurrent protection characteristics, VI = 5 V, RLOAD = 1 Ω . . . . . . . . . . . . . . . . . . . . . . 32 Figure 39. ICC versus VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Figure 40. tr versus VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Figure 41. tf versus VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Figure 42. Rds(on) versus VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Figure 43. SO-8 package outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Figure 44. MSOP8 package outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Figure 45. SO-8 carrier tape . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 Figure 46. MSOP8 carrier tape . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 Figure 47. Reel information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Doc ID 15050 Rev 3

5/42

Block diagram	STMPS2242, STMPS2252, STMPS2262, STMPS2272

1 Block diagram

Figure 1. Block diagram

	).	/54
		#URRENT
		SENSE
	%.	$RIVER
		/#
		56,/
	4HERMALL	&AULTTBLANKING REPORTING
	SENSE	DRIVER CONTROL UNIT
		/#
		#URRENT
		SENSE
		/54
	%.	$RIVER

!-6

6/42	Doc ID 15050 Rev 3

STMPS2242, STMPS2252, STMPS2262, STMPS2272	Pin descriptions

2 Pin descriptions

Figure 2. Pinout

GND
	1	8		OC1
IN	2	7		OUT1
EN1	3	6		OUT2
EN2	4	5		OC2

Table 2.	Pin descriptions
Pin number			Name				Type	Function
1			GND				−	Ground
2				IN			−	VCC input, 2.7 - 5.5 V
								Channel 1 active low (STMPS2242 and STMPS2262)
3			EN1/EN1				I
								or active high (STMPS2252 and STMPS2272) enable
								Channel 2 active low (STMPS2242 and STMPS2262)
4			EN2/EN2				I
								or active high (STMPS2252 and STMPS2272) enable
5							O	Open drain output for fault indication of channel 2
				OC2
6			OUT2				−	Output of channel 2
7			OUT1				−	Output of channel 1
8							O	Open drain output for fault indication of channel 1
				OC1

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Functional description	STMPS2242, STMPS2252, STMPS2262, STMPS2272

3 Functional description

3.1Fault 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 have faultblanking. Die overtemperature faults and input voltage drops below the UVLO threshold cause an immediate fault output.

3.2Overcurrent/overtemperature protection

In overcurrent or short-circuit condition, the switch limits the current at 500 mA for STMPS2242/STMPS2252 and 1000 mA for STMPS2262/STMPS2272. If the temperature of the die goes above the limit value, the switch turns OFF.

3.3Reverse current blocking

	When the switch is OFF, or when the STMPS device is not powered (VCC=0 V), the switch
	behaves as a Hi-Z at the output pin, ensuring that no reverse current will flow into the device
	when VI<VO.
Note:	In the case where the switch is ON, and a voltage higher than VI is applied to the OUT pin, a
	reverse current will occur.

3.4 UVLO

When the input voltage drops below the threshold value, the power switch turns OFF to prevent improper operation due to low voltage.

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STMPS2242, STMPS2252, STMPS2262, STMPS2272	Maximum rating

4 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.

4.1Absolute maximum rating

Table 3.	Absolute maximum ratings
Symbol	Parameter	Value	Unit
VI	Input voltage range	–0.3 – 6.0	V
VO	Output voltage range	–0.3 – (VI +0.3)	V
VIENx	EN input voltage range	–0.3 – 6.0	V
IO	Continuous output current	Internally limited
ESD	ESD protection level	8	kV
TJ	Junction operating temperature	–40 to 125	°C
TSTG	Storage temperature	–55 to 150	°C
TR	Thermal resistance (MSOP8)	220	°C/W
TR	Thermal resistance (SO-8)	160	°C/W

4.2Recommended operating conditions

Table 4.	Recommended operating conditions
Symbol		Parameter		Value		Unit
			Min	Typ	Max
VI		Input voltage	2.7	5.0	5.5	V
VO		Output voltage	0	5.0	5.5	V
IO
(STMPS2242		Continuous output current	0	-	500	mA
STMPS2252)
IO		Continuous output current	0	-	1000	mA
(STMPS2262
STMPS2272)

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Electrical specifications	STMPS2242, STMPS2252, STMPS2262, STMPS2272

5 Electrical specifications

Table 5.

Electrical characteristics

Symbol

Parameter

Test conditions

Value

Unit

Min

Typ

Max

VI = 2.7 V

120

160

mΩ

Static drain source

TJ = 25°C

Rds(on)

ON state resistance

VI = 5.0 V

105

115

mΩ

TJ = 25°C;

VI = 2.7 V

200

Static drain source

-40 < TJ < 125°C

Rds(on)

mΩ

ON state resistance

VI = 5.0 V

140

-40 < TJ < 125°C

Output rise time

VI = 5.0 V

RLOAD = 10 Ω

0.05

2

ms

(STMPS2242,STMPS2252)

C

= 1 µF

tr

LOAD

Output rise time

VI = 5.0 V

RLOAD = 10 Ω

0.05

2

ms

(STMPS2262,STMPS2272)

C

= 1 µF

LOAD

Output fall time

VI = 5.0 V

RLOAD = 10 Ω

0.05

2

ms

(STMPS2242,STMPS2252)

C

= 1 µF

tf

LOAD

Output fall time

VI = 5.0 V

RLOAD = 10 Ω

0.05

2

ms

(STMPS2262,STMPS2272

CLOAD

= 1 µF

Table 6.

Current limit characteristics

(VI = 5.5 V, IO = rated current, TJ = 25°C, unless otherwise specified)

Symbol

Parameter

Test condition

Value

Unit

Min

Typ

Max

IOS

VI = 5 V

(STMPS2242

0.6

0.8

1.0

A

STMPS2252)

Short circuit output

OUT connected to

current

GND through 10 mΩ

IOS

load, device enabled

1.1

1.6

2.0

A

(STMPS2262

into short circuit

STMPS2272)

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STMPS2242, STMPS2252, STMPS2262, STMPS2272								Electrical specifications
	Table 7.	Supply current characteristics
		(VI = 5.5 V, IO = rated current, TJ = 25°C, unless otherwise specified)
	Symbol	Parameter			Test condition			Value		Unit
							Min	Typ	Max
				No load				9	14
				Switch is off
	Ioff	Switch turned off								μA
				No load
				Switch is off					16
				-40 < TJ < 125°C
				No load				50	70
				Switch is on
	Ion	Switch turned on								μA
				No load
				Switch is on					85
				-40 < TJ < 125°C
				Ioff (grounded output) -				1	2
		Output leakage		Ioff (floating output)
	Ileakage			I		-				μA
		current	(1)		off (grounded output)
				Ioff (floating output)				1	6
				-40 < TJ < 125°C
				Switch is off
				VI < VO,				1	2
				Output connected to
	Ireverse	Reversed leakage		5.5 V, 25°C						μA
		current		Switch is off
				VI < VO				1	10
				Output connected to
				5.5 V, 125°C
	1. Ileakage = Ioff-ground - Ioff, where Ioff-ground = current into IN when switch is off and output is grounded
	Table 8.	Thermal characteristics
		(VI = 5.5 V, IO = rated current, TJ = 25°C, unless otherwise specified)
	Symbol	Parameter			Test condition			Value		Unit
							Min	Typ	Max
	T1	Thermal shutdown					135			°C
		threshold
	T2	Recovery from					125			°C
		thermal shutdown
	Hysteresis							10		°C

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Electrical specifications			STMPS2242, STMPS2252, STMPS2262, STMPS2272
	Table 9.	UVLO characteristics
		(VI = 5.5 V, IO = rated current, TJ = 25°C, unless otherwise specified)
	Symbol	Parameter	Test condition		Value		Unit
				Min	Typ	Max
	VUVLO	Undervoltage lockout		2.0		2.5	V
		threshold
	Hysteresis				75		mV
	Table 10.	OCx pin characteristics
		(VI = 5.5 V, IO = rated current, TJ = 25°C, unless otherwise specified)
	Symbol	Parameter	Test condition		Value		Unit
				Min	Typ	Max
	OC blanking	OCx assertion and		4	8	15	ms
		de-assertion
	VO	Output low voltage	IO = 5 mA	−	−	0.4	V
	Ioff	Off current	VOC = 2.7 V, 5.5 V	−	−	1.0	µA
			(No OC condition)
	Table 11.	ENx pin characteristics
		(VI = 5.5 V, IO = rated current, TJ = 25°C, unless otherwise specified)
	Symbol	Parameter	Test condition		Value		Unit
				Min	Typ	Max
	VIH	High level input	VI = 2.7 V to 5.5 V	2.0	−	−	V
		voltage
	VIL	Low level input	VI = 4.5 V to 5.5 V	−	−	0.8	V
		voltage	VI = 2.7 V to 4.5 V	−	−	0.4	V
	II	Input current	VIENx = 0 V or VI	-0.5	−	0.5	µA
	ton	Turn ON time(1)	RLOAD = 10 Ω	−	−	5	ms
			CLOAD = 100 μF
	toff	Turn OFF time (1)	RLOAD = 10 Ω	−	−	10	ms
			CLOAD = 100 μF

1. Not tested in production, specified by design.

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Doc ID 15050 Rev 3

STMPS2242, STMPS2252, STMPS2262, STMPS2272	Typical operating characteristics

6 Typical operating characteristics

6.1STMPS2242, STMPS2252 characteristics

The waveforms and characteristics shown in this section pertain to the STMPS2252 device. The STMPS2242 is expected to have the same characteristics with inverted EN input function. All measurements are at ambient temperature 25 °C.

6.1.1Turn-on/off characteristics for VI = 3 V, RLOAD = 6 Ω

Figure 3. Turn-on for CLOAD = 1 µF

Doc ID 15050 Rev 3

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