IRS27951S

IRS27952(4)S

6

www.irf.com

© 2012 International Rectifier

November 8

Electrical Characteristics

VCC=VBS=15V, VS=0V, CVCC=CBS=0.1uF, CLO=CHO=1nF, RT=50.5k

Ω, CT=200pF and TA = 25°C unless

otherwise specified. The output voltage and current (VO and IO) parameters are referenced to COM and are

applicable to the respective HO and LO output leads.

Symbol

Definition

Min

Typ

Max

Units

Test Conditions

Low Voltage Supply Characteristics

V

CCUV+

V

10.1

11

11.9

V

N/A

V

CCUV-

V

(Under Voltage Lock Out)

8.1

9

9.9

V

CCUVHYS

V

---

2

---

I

CCSTART

V

---

50

100

µA

V

-0.1V

I

SLEEP

Sleep mode V

---

150

200

V

Quiescent V

---

2

2.5

mA

V

---

3.1

4.5

RT=50.5k

Ω

V

---

8.7

11

RT=7.32k

Ω

Floating Supply Characteristics

V

BSUV+

7.6

8.5

9.4

V

N/A

V

BSUV-

V

(Under Voltage Lock Out)

7

7.9

8.8

V

BSUVHYS

V

---

0.6

---

I

LKVS

VS Offset supply leakage current

---

---

50

µA

V

I

BSSTART

V

---

50

100

V

Quiescent V

---

50

100

V

---

1

1.5

mA

RT=50.5k

Ω

V

---

5.7

7

RT=7.32k

Ω

Oscillator I/O Characteristics

f

SW

Oscillator frequency

44.3

46.6

48.9

kHz

CT=200pF,

RT=50.5k

Ω

271

285

299

CT=200pF,

RT=7.32k

Ω

V

CT+

Upper CT ramp voltage threshold

---

5.0

---

V

GBD

V

CT-

Lower CT ramp voltage threshold

---

3.0

---

CT/SD pin startup current

---

10

---

µA

V

Voltage reference at RT pin

1.92

2.0

2.08

V

CM

Current mirror ratio

---

1

---

A/A

D

Output duty cycle (LO and HO)

---

50

---

%

High/low output dead time

170

210

250

ns

CT=200pF