4.5V to 40V Input Automotive

Flyback/Boost/SEPIC Power-Supply Controllers

2

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ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

Ω, CT =

Stresses beyond those listed under “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 for extended periods may affect device reliability.

IN to SGND.............................................................-0.3V to +45V

IN to PGND.............................................................-0.3V to +45V

OVI, SLOPE, RTCT, SYNC, SS, FB, COMP,

REG5 to SGND .........................................................-0.3V to +6V

SGND to PGND .....................................................-0.3V to +0.3V

OUT Current (< 10μs transient) ..........................................±1.5A

16-Pin TSSOP-EP (derate 21.3mW/°C

above +70°C)..............................................................1702mW

16-Pin TSSOP (derate 9.4mW/°C above +70°C) ..........754mW

Operating Junction Temperature Range ...........-40°C to +125°C

Junction Temperature ......................................................+150°C

Storage Temperature Range .............................-60°C to +150°C

Lead Temperature (soldering, 10s) .................................+300°C

Soldering Temperature (reflow) .......................................+260°C

*

As per JEDEC51 Standard, Multilayer Board.

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

POWER SUPPLY

Input Supply Range

4.5

40.0

V

Operating Supply Current

2

3.1

mA

ON/OFF CONTROL

Input-Voltage Threshold

1.05

1.23

1.40

V

Input-Voltage Hysteresis

75

mV

Input Bias Current

0.5

μA

Shutdown Current

10

20

μA

7.15

7.4

7.60

V

Line Regulation

1

mV/V

UVLO Threshold Voltage

3.15

3.5

3.75

V

UVLO Hysteresis

500

mV

Dropout Voltage

0.25

0.5

V

Output Current Limit

45

mA

Internal Clamp Voltage

10.0

10.4

10.8

V

INTERNAL 5V LDO (REG5)

Output (REG5) Voltage Set Point

4.75

4.95

5.05

V

Line Regulation

2

mV/V

Dropout Voltage

0.25

0.5

V

Output Current Limit

32

mA