LM5027A

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SNVS642B – APRIL 2010 – REVISED MARCH 2013

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)

VIN to GND

-0.3V to 105V

VCC to GND

-0.3V to 16V

UVLO to GND

-0.3 to 8V

All other inputs to GND

-0.3 to 7V

COMP Input Current

10 mA

2kV

Storage Temperature Range

-55°C to 150°C

Junction Temperature

150°C

(1)

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

(2)

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.

(3)

It is not recommended that external power sources be connected to these pins.

(4)

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

Ω resistor into each pin.

Operating Ratings

(1)

VIN

13 to 90V

VCC

8 to 15V

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.

Electrical Characteristics

+125°C. Unless otherwise specified, the following conditions apply: VIN = 48V, VCC = 10V, RT= 38.4K , No Load on OUTA,

OUTB and OUTSR unless otherwise stated.

Symbol

Parameter

Conditions

Min

Typ

Max

Units

VIN SUPPLY

Ibias

VIN Operating Current

COMP and VCC Open, UVLO and OTP = 3V

6.8

mA

VIN Shutdown Current

UVLO = 0V, Vin = 100 V

310

650

µA

VCC REGULATOR

VCC Regulation

No Load (SS<4V)

9.1

9.5

9.9

V

VCC Current Limit

VCC=9.5V

55

65

mA

VCC Regulator load regulation

IVCCREG 0 to 15 mA

75

mV

VCC Under-voltage Lockout

Positive going VCC

VccReg

VccReg –

V

Voltage

–180mV

100mV

VccReg

VCC Regulation

No Load

7.3

7.5

7.7

V

VCC Under-voltage Lockout

Negative going Vcc

5.7

6.0

6.3

V

Voltage

VCC Supply Current (Icc)

Supply current into VCC form an external

6

mA

source, CGATE = OPEN, VCC 10V

REFERENCE SUPPLY

Reference Voltage

IREF = 0mA

4.85

5.0

5.15

V

Reference Voltage Regulation

IREF= 0 to 10mA

10

20

mV

Reference Current Limit

10

17.5

mA

REF Under-voltage Threshold

UVLO >0.4V, VCC >9.5V

3.8

V

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