LM5115A

SNVS467B – DECEMBER 2006 – REVISED MARCH 2013

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These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam

during storage or handling to prevent electrostatic damage to the MOS gates.

ABSOLUTE MAXIMUM RATINGS

(1) (2)

VBIAS to GND

–0.3V to 32V

VCC to GND

–0.3V to 9V

HS to GND

–1V to 76V

VOUT, CS to GND

– 0.3V to 15V

All other inputs to GND

−0.3V to 7.0V

Storage Temperature Range

–55°C to +150°C

Junction Temperature

+150°C

ESD Rating

2 kV

(1)

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

which operation of the device is specified. Operating Ratings do not imply ensured performance limits. For ensured performance limits

and associated test conditions, see the Electrical Characteristics tables.

(2)

If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/Distributors for availability and

specifications.

(3)

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

Ω resistor into each pin.

OPERATING RATINGS

VBIAS supply voltage

5V to 30V

VCC supply voltage

5V to 7.5V

HS voltage

0V to 75V

HB voltage

VCC + HS

Operating Junction Temperature

–40°C to +125°C

TYPICAL OPERATING CONDITIONS

Parameter

Min

Typ

Max

Units

Supply Voltage, VBIAS

4.5

30

V

Supply Voltage, VCC

4.5

7

V

Supply voltage bypass, CVBIAS

0.1

1

µF

Reference bypass capacitor, CVCC

0.1

1

10

µF

HB-HS bootstrap capacitor

0.047

µF

SYNC Current Range (VCC = 4.5V)

50

150

µA

RAMP Saw Tooth Amplitude

1

1.75

V

VOUT regulation voltage (VBIAS min = 3V + VOUT)

0.75

13.5

V

ELECTRICAL CHARACTERISTICS

(1)

Symbol

Parameter

Conditions

Min

Typ

Max

Units

VBIAS SUPPLY

Ibias

VBIAS Supply Current

4

mA

VCC LOW DROPOUT BIAS REGULATOR

VccReg

VCC Regulation

VCC open circuit. Outputs not switching

6.65

7

7.15

V

VCC Current Limit

40

mA

VCC Under-voltage Lockout Voltage

Positive going VCC

4

4.5

V

VCC Under-voltage Hysteresis

0.2

0.25

0.3

V

(1)

Min and Max limits are 100% production tested at 25°C. Limits over the operating temperature range are specified through correlation

using Statistical Quality Control (SQC) methods. Limits are used to calculate TI’s Average Outgoing Quality Level (AOQL).

(2)

Device thermal limitations may limit usable range.

4

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