TPS2044

활성

4채널, 0.5A 부하, 0.9A ILIMIT, 2.7-5.5V, 80mΩ USB 전원 스위치, 액티브 로우

지금 주문

데이터 시트

document-pdfAcrobat TPS2044, TPS2054 - Power-Distribution Switch datasheet (Rev. B) (영어)

TPS2044

활성

데이터 시트

지금 주문

제품 상세 정보

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)

0.9

Operating temperature range (°C)

-40 to 125

Enable

Active Low

Number of switches

4

Current limit accuracy at 1 A

0.22

Rating

Catalog

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)

0.9

Operating temperature range (°C)

-40 to 125

Enable

Active Low

Number of switches

4

Current limit accuracy at 1 A

0.22

Rating

Catalog

SOIC (D)

16

59.4 mm² 9.9 x 6

135-m -Maximum (5-V Input) High-Side MOSFET Switch
500 mA Continuous Current per Channel
Short-Circuit Protection
Independent Thermal Protection
Overcurrent Logic Output
Operating Range...2.7-V to 5.5-V
Logic-Level Enable Input
2.5-ms Typical Rise Time
Undervoltage Lockout
20-uA-Maximum Standby Supply Current
Bidirectional Switch
16-pin SOIC Package
Ambient Temperature Range, -40°C to 85°C
2-kV Human-Body-Model, 200-V Machine-Model ESD Protection

135-m -Maximum (5-V Input) High-Side MOSFET Switch
500 mA Continuous Current per Channel
Short-Circuit Protection
Independent Thermal Protection
Overcurrent Logic Output
Operating Range...2.7-V to 5.5-V
Logic-Level Enable Input
2.5-ms Typical Rise Time
Undervoltage Lockout
20-uA-Maximum Standby Supply Current
Bidirectional Switch
16-pin SOIC Package
Ambient Temperature Range, -40°C to 85°C
2-kV Human-Body-Model, 200-V Machine-Model ESD Protection

The TPS2044 and TPS2054 quad power-
distribution switches are intended for applications where heavy capacitive loads and short circuits

are likely to be encountered. Both the TPS2044 and the TPS2054 incorporate in a single package four 135-m N-channel MOSFET high-side power switches for power-distribution systems that require multiple power switches. Each switch is controlled by a logic enable that is compatible with 5-V logic and 3-V logic. Gate drive is provided by an internal charge pump that controls the power-switch rise times and fall times to minimize current surges during switching. The charge pump, requiring no external components, 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 TPS2044 and TPS2054 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.

The TPS2044 and TPS2054 are designed to limit at 0.9-A load. These power-distribution switches are available in 16-pin small-outline integrated-circuit (SOIC) packages and operate over an ambient temperature range of -40°C to 85°C.

The D package is available taped and reeled. Add an R suffix to device type (e.g., TPS2044DR)

The TPS2044 and TPS2054 quad power-
distribution switches are intended for applications where heavy capacitive loads and short circuits

are likely to be encountered. Both the TPS2044 and the TPS2054 incorporate in a single package four 135-m N-channel MOSFET high-side power switches for power-distribution systems that require multiple power switches. Each switch is controlled by a logic enable that is compatible with 5-V logic and 3-V logic. Gate drive is provided by an internal charge pump that controls the power-switch rise times and fall times to minimize current surges during switching. The charge pump, requiring no external components, 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 TPS2044 and TPS2054 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.

The TPS2044 and TPS2054 are designed to limit at 0.9-A load. These power-distribution switches are available in 16-pin small-outline integrated-circuit (SOIC) packages and operate over an ambient temperature range of -40°C to 85°C.

The D package is available taped and reeled. Add an R suffix to device type (e.g., TPS2044DR)

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