UPS703

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

4 of 12

www.unisonic.com.tw

QW-R119-015.C

PARAMETER

SYMBOL

RATINGS

UNIT

Supply Voltage

30

V

Input Voltage to Vin Pin

Vin

30

V

Input Voltage to FB Pin

-0.3 ~ 6.2

V

Input Voltage to CS Pin

-0.3 ~ 2.8

V

Junction Temperature

150

°C

Operating Temperature

-40 ~ +125

°C

Storage Temperature

-50 ~ +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.

RECOMMENDED OPERATING CONDITIONS

PARAMETER

SYMBOL

RATINGS

UNIT

Supply Voltage

8.6 ~ 22

V

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

SUPPLY SECTION

Start Up Current

22

45

μA

7

9

mA

Supply Current with Switch

7

9

mA

UNDER-VOLTAGE LOCKOUT SECTION

Start Threshold Voltage

13.5

14.2

15

V

Min. Operating Voltage

7.5

8.2

9

V

Hysteresis

6

V

INTERNAL VOLTAGE REFERENCE

Reference Voltage

6.3

6.5

6.7

V

CONTROL SECTION

0.5

V

4.4

V

Burst-Mode Out FB Voltage

1.7

V

Reduce-Frequency end FB Voltage

1.6

V

Burst-Mode Enter FB Voltage

1.5

V

Normal

61

68

75

kHz

Switch Frequency

Power-Saving

Before enter burst mode

20

40

kHz

68

74

80

%

Duty Cycle

0

%

Frequency Hopping

±1.5

±3

±4.5

kHz

5

%

Frequency Variation VS Temperature

Deviation

T=-40 to 105°C

5

%

Feedback Resistor

16

21

26

kΩ

Soft-Start Time

9.9

11.2

12.6

ms

PROTECTION SECTION

19

V

OVP Threshold

28

V

OLP Threshold

4.7

4.9

5.1

V

Delay Time Of OLP

55

62

70

ms

OTP Threshold

120

135

150

°C

OVP Disable Threshold

3.9

4.1

4.3

V

OLP Enable Threshold

5.1

5.4

5.7

V