COILTRONICSDR125-221-R,or datasheet(3/16 Pages) TI1

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SM74301

www.ti.com

SNVS719A – JULY 2011

Absolute Maximum Ratings

(1) (2)

VIN to GND

-0.3V to 100V

BST to GND

-0.3V to 114V

SW to GND (Steady State)

-1V

ESD Rating (3)

Human Body Model

2kV

BST to VCC

100V

BST to SW

14V

VCC to GND

14V

All Other Inputs to GND

-0.3 to 7V

Lead Temperature (Soldering 4 sec)

260°C

Storage Temperature Range

-55°C to +150°C

(1)

Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Ratings are conditions under which

operation of the device is intended to be functional. For specifications and test conditions, see the Electrical Characteristics.

(2)

If Military/Aerospace specified devices are required, please contact the TI Sales Office/Distributors for availability and specifications.

(3)

The human body model is a 100pF capacitor discharged through a 1.5k

Ω resistor into each pin. The ESD rating for pin 2, pin 7, and pin

8 is 1 kV.

Operating Ratings

(1) (2)

VIN

6V to 95V

Operating Junction Temperature

−40°C to + 125°C

(1)

Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Ratings are conditions under which

operation of the device is intended to be functional. For specifications and test conditions, see the Electrical Characteristics.

(2)

For detailed information on soldering plastic VSSOP and WSON packages, refer to the Packaging website available from TI.

Electrical Characteristics

Specifications with standard typeface are for TJ = 25°C, and those with boldface type apply over full Operating Junction

Temperature range. VIN = 48V, unless otherwise stated

(1).

Symbol

Parameter

Conditions

Min

Typ

Max

Units

VCC Supply

Vcc Reg

Vcc Regulator Output

Vin = 48V

6.6

7.4

Vin – Vcc

6V < Vin < 8.5V

100

Vcc Bypass Threshold

Vin Increasing

8.5

Vcc Bypass Hysteresis

300

Vcc Output Impedance

Vin =6V

100

Ω

Vin = 10V

8.8

Ω

Vin = 48V

0.8

Ω

Vcc Current Limit(2)

Vin = 48V

9.2

Vcc UVLO

Vcc Increasing

5.3

Vcc UVLO hysteresis

190

Vcc UVLO filter delay

µs

Iin Operating current

FB = 3V, Vin = 48V

550

750

µA

Iin Shutdown Current

RT/SD = 0V

110

176

µA

(1)

All electrical characteristics having room temperature limits are tested during production with TA = TJ = 25°C. All hot and cold limits are

specified by correlating the electrical characteristics to process and temperature variations and applying statistical process control.

(2)

The VCC output is intended as a self bias for the internal gate drive power and control circuits. Device thermal limitations limit external

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