UCL5811

Preliminary

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

3 of 5

www.unisonic.com.tw

QW-R125-060.a



ABSOLUTE MAXIMUM RATING

PARAMETER

SYMBOL

RATINGS

UNIT

28

V

Input Voltage to FB Pin

-0.3 ~ 6

V

Input Voltage to CS Pin

-0.3 ~ 6

V

Input Voltage to CMP Pin

-0.3 ~ 6

V

Maximum Operating Junction Temperature

+125

°C

Storage Temperature

-55 ~ +150

°C

Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.

Absolute maximum ratings are stress ratings only and functional device operation is not implied.



PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP MAX UNIT

Operating Supply Current

Gate open

1

mA

On Threshold Voltage

16

Off Threshold Voltage

9

V

6

V

25

V

FB Pin

FB Voltage When Sink Current

2mA sink current

5

V

FB Voltage When Source Current

4mA source current

-0.1

GND +0.1

V

FB Zero Voltage Detect

0.2

V

FB Voltage When Output OVP

3.6

V

FB Voltage When Trigger SCP

1

V

CS Pin

Cycle by Cycle Current Limited on CS

FB=0V

1

V

Inner CS Voltage Vary with FB Source

Current

TBD

mV/mA

Leading-Edge Blanking Time

300

400

500

ns

COMP Pin

Reference Voltage for OTA Input

0.2

V

COMP Maximal Sink Current

50

uA

COMP Maximal Source Current

10

uA

COMP Maximal Voltage

4.0

V

Oscillator

Maximal Frequency

130

kHz

Minimal Frequency

30

kHz

DRV pin

Rise Time

200

ns

Fall Time

100

ns

Over Temperature Drive Protection

Over Temperature Protection

145

°C

OTP Hysteresis

20

°C