2010.04 Ver. 1.21 Copyright Grenergy OPTO, Inc. www.grenergy-ic.com

4

GR8836

Parameter

Pin

Min.

Typ.

Max.

Unit

SUPPLY VOLTAGE

Startup current

5

8

20

uA

Operating current (with 1nF load on OUT pin), Vcomp = 0V

5

2.0

mA

Operating current (with 1nF load on OUT pin), Vcomp = 2.5V

5

2.5

mA

Operating current (with 1nF load on OUT pin), protection tripped

(OLP, OVP)

5

0.5

mA

UVLO(off)

5

8.0

9.0

10.0

V

UVLO(on)

5

13.3

15.0

17

V

OVP level on VCC pin

5

26.5

28

29.5

V

VOLTAGE FEEDBACK

Short circuit current, Vcomp = 0V

2

1

mA

Open loop voltage, COMP pin open

2

4.5

V

Green-mode threshold voltage

2

1.8

V

CURRENT SENSING

Maximum input voltage, Vcs (off)

4

0.85

0.90

0.95

V

Leading-edge blanking time

4

350

nS

Input impedance

4

1

M

Ω

Delay to Output

4

100

nS

OSCILLATOR

Frequency (RT = 100K

Ω)

3

60

65

70

KHz

Jitter frequency

3

±3

%

Green mode frequency (RT = 100K

Ω)

3

18

22

30

KHz

Temp. stability (-40°C ~ 110°C)

3

3

%

Voltage stability (VCC = 11V ~ 25V)

3

1

%

GATE DRIVER OUTPUT

Output low level, VCC = 15V, Io = 20mA

6

1

V

Output high level, VCC = 15V, Io = 20mA

6

8

V

Rising time, load capacitance = 1000pF

6

250

nS

Falling time, load capacitance = 1000pF

6

70

nS

VGATE-clamp (VCC = 25V )

6

18

V

OLP

OLP trip level, Vcomp (OLP)

-

3.7

V

OLP delay time , Fs = 65KHz

-

60

mS

PWM SECTION

Maximum duty cycle

-

70

75

80

%

Soft start time, Fs = 65KHz

-

3.5

mS