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See Technical Specifications

TPS2041BMDBVTEP

0.5A loading, ±30% ILIMIT accuracy, 2.7-5.5V, 70mΩ USB power switch, active-low

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

TPS2041BMDBVTEP
Datasheet:

TPS2041BMDBVTEP Datasheet (PDF)
Vin (min) (V):

2.7
Vin (max) (V):

5.5
Continuous current (max) (A):

0.5
Current limit (A):

1
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TPS2041BMDBVTEP General Description

The TPS2041B power-distribution switch is intended for applications where heavy capacitive loads and short circuits are likely to be encountered. This device incorporates 70-mΩ N-channel MOSFET power switches for power-distribution systems that require multiple power switches in a single package. Each switch is controlled by a logic enable input. Gate drive is provided by an internal charge pump designed to control the power-switch rise times and fall times to minimize current surges during switching. The charge pump requires no external components and allows operation from supplies as low as 2.7 V.

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, pulling the overcurrent (OC) 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 that the switch remains off until valid input voltage is present. This power-distribution switch is designed to set current limit at 1 A (typ).

Key Features

70-mΩ High-Side MOSFET
500-mA Continuous Current
Thermal and Short-Circuit Protection
Current Limit:
0.45 A (Min), 1.55 A (Max)
Operating Range: 2.7 V to 5.5 V
0.6-ms Typical Rise Time
Undervoltage Lockout
Deglitched Fault Report (OC)
No OC Glitch During Power Up
Maximum Standby Supply Current: 1 μA
Bidirectional Switch
ESD Protection Level Per AEC-Q100 Classification
UL Recognized, File Number E169910

Specifications

Product type	Fixed current limit, Power switch	Vin (min) (V)	2.7
Vin (max) (V)	5.5	Continuous current (max) (A)	0.5
Current limit (A)	1	Operating temperature range (°C)	-55 to 125
Enable	Active Low	Number of switches	1
Current limit accuracy at 1 A	0.35	Rating	HiRel Enhanced Product
feature-type	USB Power Switch	feature-number-of-switches	1
feature-process-technology		feature-current-limit-a	1
feature-minimum-input-voltage-v	2.7	feature-maximum-input-voltage-v	5.5
feature-number-of-outputs		feature-minimum-output-current-a
feature-operating-supply-voltage-range-v		feature-maximum-power-dissipation-mw	182
feature-switch-on-resistance-mohm	75	feature-typical-turn-on-delay-time-us	3000
feature-typical-turn-off-delay-time-us	6000	feature-packaging	Tape and Reel
feature-rad-hard		feature-pin-count	5
feature-cecc-qualified	No	feature-esd-protection	Yes
feature-military	No	feature-aec-qualified	No
feature-aec-qualified-number		feature-eccn-code	EAR99
feature-svhc	Yes	feature-svhc-exceeds-threshold	No