Texas Instruments TPS92311A19230VEVM Evaluation Module TPS92311A19230VEVM TPS92311A19230VEVM Datenbogen

SNVS811B – MAY 2012 – REVISED MAY 2013

V

CC

= 18V unless otherwise indicated. Typicals and limits appearing in plain type apply for T

A

= T

J

= +25°C. Limits appearing

in boldface type apply over the full Operating Temperature Range. Data sheet minimum and maximum specification limits
are specified by design, test or statistical analysis.

V

CC-UVLO

VCC Turn on

23.4 / 23

25.6

27.8 / 29

V

threshold

VCCTurn off

11.1 / 10.4

13

14.7 / 15.7

V

threshold

Hysteresis

12.6

I

STARTUP

Startup Current

V

CC

= V

CC-UVLO

–3.0V

12.5

µA

I

VCC

Operating supply

Not switching

1.2

mA

current

65kHz switching

2

mA

I

ZCD

ZCD bais current

V

ZCD

= 5V

0.1

1

uA

V

ZCD-OVP

ZCD over-voltage

4.3

V

threshold

T

OVP

Over voltage de-

3

cycle

bounce time

V

ZCD-ARM

ZCD Arming

V

ZCD

= Increasing

1.24

V

threshold

V

ZCD-TRIG

ZCD Trigger

V

ZCD

= Decreasing

0.6

V

threshold

V

ZCD-HYS

ZCD Hysteresis

V

ZCD-ARM

-V

ZCD-TRIG

0.64

V

I

COMP-

Internal reference

V

COMP

= 2.0V, V

ISNS

= 0V, Measure at

27

µA

SOURCE

current for primary

COMP pin

side current
regulation

gm

ISNS

ISNS error amp

Δ

V

ISNS

to

Δ

I

COMP

@ V

COMP

= 2.0V

100

µmho

trans-conductance

V

COMP

COMP operating

2.0

3.5

V

range

V

DLY

DLY pin internal

1.23

V

reference voltage

I

DLY-MAX

DLY source current V

DLY

= 0V

µA

V

ISNS-OCP

Over Current

Non isolation mode

0.56

0.61

0.68

V

Detection
Threshold

V

ISNS-OCP

Over Current

Isolation mode

3.2

3.4

3.6

V

Detection
Threshold

I

ISNS

Current Sense

V

ISNS

= 5V

-1

1

µA

Bias Current

T

OCP

Over current

R

SNS

= 1K, Measure ISNS pin pulse width

210

ns

Detection

with V

SW

= 6V

Propagation Delay

V

BVDS

SW to ISNS

600

660

V

breakdown voltage

(1)

Typical numbers are at 25°C and represent the most likely norm.

4

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