IRS2548D

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© 2011 International Rectifier

8

Electrical Characteristics (cont’d)

VCC = VBS = VBIAS=14V +/- 0.25V, CLO = CHO = CPFC = 1000pF, RFMIN = 42.2kOhm,

VENN = VCOMP = VCS = VOC = VBUS = VZX = 0V, TA=25C unless otherwise specified.

Symbol

Definition

Min

Typ

Max

Units Test Conditions

System Control Oscillator Characteristics

fOSCRUN

Half-bridge Oscillator Run Frequency

42.5

44.5

46.5

kHz

MODE = RUN

d

Oscillator duty cycle

---

50

---

tdLO

LO Output Deadtime

---

1.6

---

us

tdHO

HO Output Deadtime

---

1.6

---

VFMIN

FMIN Pin Voltage

1.9

2.0

2.1

V

VCC = 14.0V

VFMINFLT FMIN Pin Fault or UVLO Mode Voltage

---

0

---

MODE = FAULT

or UVLO

System Control Protection Circuitry Characteristics

VCSTH+

CS Pin Over-current Sense Threshold

1.15

1.25

1.35

V

nEVENTS

CS Pin Fault Counter No. of Events

65

MODE = RUN

VENNTH+

SD Pin Rising Non-latched Shutdown

Threshold Voltage

---

2.0

---

VENNTH-

SD Pin Falling Reset Threshold Voltage

---

1.5

---

V

VENNBIAS

EOL Pin Internal Bias Voltage

---

0V

---

V

VFMINFLT FMIN Pin Fault Mode Voltage

---

0

---

V

MODE = FAULT

Gate Driver Output Characteristics (HO, LO and PFC pins)

VOL

Low-Level Output Voltage

---

0

100

IO = 0

VOH

High-Level Output Voltage

---

0

100

mV

VBIAS - VO ,

IO = 0

tr

Turn-On Rise Time

---

120

---

tf

Turn-Off Fall Time

---

50

---

nsec

I0+

Source Current

---

180

---

I0-

Sink Current

---

260

---

mA

Bootstrap FET Characteristics

VB_ON

VB when the bootstrap FET is on

---

13.7

---

V

IB_CAP

VB source current when FET is on

35

55

---

mA

CBS=0.1uF

IB_10V

VB source current when FET is on

8

12

---

VB=10V