2010.03 Ver. 1.0 Copyright Grenergy OPTO, Inc. www.grenergy-ic.com

4

GR6953

Electrical Characteristics

(VCC = 12V, HV = 12V, Cboot = 0.1uF, CL = 1nF, CT = 1nF, Dboot is a ultra fast diode, and Ta = 25°C, unless otherwise

specified. The VIN, VTH and IIN parameters are referenced to SGND = PGND = 0V)

Parameter

Conditions

Symbol

Min.

Typ.

Max.

Unit

LOW VOLTAGE SUPPLY CHARACTERISTICS

Rising VCC under-voltage lockout

threshold

8.1

9.0

9.9

V

Falling VCC under-voltage lockout

threshold

7.2

8.0

8.8

V

VCC under-voltage lockout

Hysteresis

0.5

1.0

1.5

V

Micropower startup VCC supply

current

—

50

100

µA

Quiescent VCC supply current

—

160

300

µA

VCC operating voltage

Vop

10

12

18

V

OSCILLATOR I/O CHARACTERISTICS

RT = 36k

19.4

20

20.6

kHz

Oscillator frequency (CT=1nF)

RT = 7.2k

94

100

106

kHz

RT pin duty cycle

d

48

50

52

%

CT pin current

—

0.001

1.0

uA

UV-mode CT pin pulldown current

0.25

0.30

0.5

mA

Upper CT ramp voltage threshold

—

8.0

—

V

Lower CT ramp voltage threshold

—

4.0

—

V

CT voltage shutdown threshold

4.0

4.1

4.2

V

—

10

50

mV

High-level RT output voltage, VCC

- VRT

—

100

300

mV

—

10

50

mV

Low-level RT output voltage

—

100

300

mV

UV-mode RT output voltage

—

0

100

mV

mV

—

10

50

mV

mV

SD-Mode RT output voltage, VCC -

VRT

—

100

300

mV