AP2552/AP2553/AP2552A/AP2553A

Document number: DS35404 Rev. 5 - 2

6 of 16

www.diodes.com

December 2012

© Diodes Incorporated

AP2552/ AP2553/ AP2552A/ AP2553A

Symbol

Parameter

Test Conditions (Note 6)

Min

Typ

Max

Unit

Reverse Voltage Protection

Reverse-Voltage Comparator Trip Point

95

135

190

mV

IROCP

Reverse Current Limit

0.72

A

Time from Reverse-Voltage Condition to

MOSFET Turn Off

(AP2552A/AP2553A)

3

4.75

7

ms

Fault Flag

FAULT Output Low Voltage

180

mV

FAULT Off Current

1

µA

FAULT Blanking and Latch Off Time

(Over-Current)

Assertion or deassertion due to overcurrent

5

7.5

10

ms

FAULT Blanking Time

(Reverse-Voltage)

Assertion or deassertion due to

reverse-voltage

2

3.75

6

ms

Thermal Shutdown

Thermal Shutdown Threshold

160

°C

Thermal Shutdown Threshold under

Current Limit

140

°C

Thermal Shutdown Hysteresis

20

°C

Note:

6. Pulse-testing techniques maintain junction temperature close to ambient temperature; thermal effects must be taken into account separately.

Typical Performance Characteristics

90%

10%

50%

50%

10%

90%

90%

10%

50%

50%

10%

90%

Figure 1. Voltage Waveforms: AP2552/52A (left), AP2553/53A (right)

Figure 2. Response Time to Short Circuit Waveform