2525 查看數據表（PDF） - Allegro MicroSystems

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2525

USB POWER CONTROL SWITCHES

Allegro MicroSystems 

2525 AND 2535

USB

POWER CONTROL

SWITCHES

Electrical Characteristics at TA = 25°C, VIN = 5 V.

Limits

Parameter

Test Conditions

Min Typ Max Units

Operating Voltage Range

Switch Resistance

VIN

VIN = 5 V, IOUT = 500 mA

VIN = 3.3 V, IOUT = 500 mA

2.7

–

5.8

V

– 100 140 mΩ

– 100 140 mΩ

Output Leakage Current

Maximum Load Current

Output disabled, VIN = 5 V, VOUT = 0

– <1.0 10

µA

500 –

–

mA

Short-Circuit Current Limit Output enabled into load, VOUT = 4 V

0.5 0.75 1.25

A

Current-Limit Threshold Ramped load applied to enabled output, VOUT ≤ 4 V

–

0.9

–

A

ENABLE Input Threshold Low-to-high transition

–

2.1 2.4

V

High-to-low transition

0.8 1.9

–

V

ENABLE Input Hysteresis

–

0.2

–

V

ENABLE Input Current

ENABLE Input Cap.

VEN = 0 V to 5.5 V

– ±0.01 ±1.0

µA

–

1.0

–

pF

Output Turn-On Delay

RL = 10 Ω, CL = 1 µF, 50% VENABLE to 10% VOUT

Output Turn-On Rise Time RL = 10 Ω, CL = 1 µF, 10% VOUT to 90% VOUT

Output Turn-Off Delay

RL = 10 Ω, CL = 1 µF, 50% VENABLE to 90% VOUT

Output Turn-Off Fall Time RL = 10 Ω, CL = 1 µF, 90% VOUT to 10% VOUT

Error Flag Output

Resistance

VIN = 5 V, IL = 10 mA

VIN = 3.3 V, IL = 10 mA

Error Flag Off Current

VFLG = 5 V

Supply Current

Switch disabled (see note), OUT = open

–

0.5

–

ms

–

0.6

–

ms

–

10

–

µs

–

25

–

µs

–

8.0

–

Ω

–

10

–

Ω

– 0.01 –

µA

–

0.2 5.0

µA

Switch enabled (see note), OUT = open

– 100 160

µA

UVLO Threshold

Increasing VIN

– 2.35 –

V

Decreasing VIN

–

2.2

–

V

Over-Temperature

Shutdown Threshold

Increasing TJ

Decreasing TJ

– 165 –

°C

– 155 –

°C

Note — Disabled is ≤ 0.8 V and enabled is ≥ 2.4 V (active high) for the A2525EL/EM. Disabled is ≥ 0.8VIN and enabled is ≤ 0.8 V

(active low) for the A2535EL/EM.

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