RT7310

Copyright © 2014 Richtek Technology Corporation. All rights reserved.

is a registered trademark of Richtek Technology Corporation.

DS7310-00

October

2014

www.richtek.com

7

Timing Control Section

Voltage Ramp Slope of the Ramp

Generator Output

228

270

312

mV/

s

Minimum On-Time

2.2

2.7

3.2

s

Maximum On-Time

--

65

--

s

Minimum Switching Period

7

8.5

10

s

Duration of Starter

At no valley detected

--

75

--

s

Current Sense Section

Blanking Time

LEB + Propagation Delay

(Note 5)

240

400

570

ns

Output Diode Short-Circuit

Protection Voltage Threshold at CS

--

1.5

--

V

CS Voltage Threshold for Peak

Current Limitation

0.93

1.03

1.13

V

Propagation Delay Compensation

Factor

--

0.02

--

A/A

Gate Driver Section

GD Voltage Rising Time

--

60

80

ns

GD Voltage Falling Time

--

40

70

ns

GD Output Clamping Voltage

--

13

--

V

Internal GD Pull Low Resistor

--

40

--

k



Over-Temperature Protection Section

Over-Temperature Threshold

(Note 5)

--

150

--

°C

Over-Temperature Threshold

Hysteresis

(Note 5)

--

30

--

°C

Note 1.

Stresses beyond those listed “Absolute Maximum Ratings” may cause permanent damage to the device. These are

stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the

operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions may affect

device reliability.

Note 2.

JEDEC 51-3 thermal measurement standard.

Note 3. Devices are ESD sensitive. Handling precaution recommended.

Note 4. The device is not guaranteed to function outside its operating conditions.

Note 5. Guaranteed by Design.