Rev. C 03/16

7

LYT5216-5228

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Absolute Maximum Ratings(1,3)

DRAIN Pin Voltage:

LYT521x............................ -0.3 V to 650 V

LYT522x ........................... -0.3 V to 725 V

DRAIN Pin Peak Current(4) LYT5225 ........................... 1.95 A (3.16 A)

LYT5216 ............................. 3.25 A (4.0 A)

LYT5226 ........................... 2.64 A (4.35 A)

LYT5218 ............................. 5.06 A (6.3 A)

LYT5228 ........................... 4.16 A (6.86 A)

BP, DO, DS, OC, L DS, FB Pin Voltage..........................-0.3 V to 6.5 V

Lead Temperature(2) .............................................................. 260 °C

Storage Temperature ...................................................-65 to 150 °C

Operating Junction Temperature.................................. -40 to 150 °C

Notes:

1. All voltages referenced to Source, T

A = 25 °C.

2. 1/16 in. from case for 5 seconds.

3. The Absolute Maximum Ratings specified may be applied, one at a

time without causing permanent damage to the product. Exposure

to Absolute Maximum Ratings for extended periods of time may

affect product reliability.

4. The higher peak Drain current (in parentheses) is allowed while the

Drain voltage is simultaneously less than 400 V for 725 V integrated

MOSFET version, or less than 325 V for 650 V integrated MOSFET

version.

Parameter

Symbol

Conditions

SOURCE = 0 V

T

J = -40 °C to +125 °C

(Unless Otherwise Specified)

Min

Typ

Max

Units

Control Functions

Maximum

Output Frequency

f

MAX

T

J = 25 °C

Average

115.3

124

132.7

kHz

Peak-to-Peak Jitter

8

%

Minimum

Output Frequency

f

MIN

T

J = 0 °C to 125 °C

Average

40

kHz

Peak-to-Peak Jitter

8

%

Frequency Jitter

Modulation Rate

f

M

See Note A

1.76

kHz

Maximum On-Time

T

ON(MAX)

T

J = 25 °C

5.75

6.25

6.75

ms

Minimum On-Time

T

ON(MIN)

T

J = 25 °C

0.95

1.05

1.15

ms

FEEDBACK Pin Voltage

V

FB

T

J = 25 °C

291

300

309

mV

FEEDBACK Pin Voltage

Triggering Cycle

Skipping

V

FB(SK)

600

mV

FEEDBACK Pin

Overvoltage Threshold

V

FB(OV)

2000

mV

Feedback Pull-Up Current

I

FB

-1.3

-1.0

-0.7

mA

Thermal Resistance

Thermal Resistance: SO-16B Package:

(q

JA)..................................................78 °C/W

(2)

(q

JA) .................................................... 68 °C/W

(3)

(q

JC)

(1)

...............................................43 °C/W

Notes:

1. Measured per JESD 51-1, MIL-STD-883C-1012.1 and SEMI test

method #G43-87.

2. Soldered to 0.36 sq. inch (232 mm2) 2 oz. (610 g/m2) copper clad,

with no external heat sink attached.

3. Soldered to 1 sq. in. (645 mm2), 2 oz, (610 g/m2) copper clad.