3940_03 datasheet(4/12 Pages) ALLEGRO

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3940

FULL-BRIDGE POWER

MOSFET CONTROLLER

115 Northeast Cutoff, Box 15036

Worcester, Massachusetts 01615-0036 (508) 853-5000

ELECTRICAL CHARACTERISTICS: unless otherwise noted at TA= -40°C to +135°C, TJ = -40°C to +150°C,

VIN ≤≤≤≤≤ VBB = 7 V to 40 V, Cp = 0.47 µF, Cr = 1 µF, CREG5 = 0.1 µF, CREG13 = 10 µF, CBOOT = 0.1 µF, PWM = 22.5 kHz

square wave.

Limits

Characteristics

Symbol

Conditions

Min

Typ

Max

Units

Power Supply

BB Quiescent Current

RESET = 1, V

BB = VIN = 40 V, VIN ≠ VCP,

–

4.8

7.0

coast, stopped, CP disabled, I

DEAD = 170 µA

RESET = 1, V

BB = VIN = 15 V, VIN ≠ VCP,

–

4.3

7.0

coast, stopped, CP disabled, I

DEAD = 170 µA

RESET = 1, V

BB = VIN = 40 V, VIN ≠ VCP, coast,

–

5.0

7.0

stopped, I

DEAD = 170 µA, ICP = 0 mA

RESET = 1, V

BB = VIN = 15 V, VIN ≠ VCP, coast,

–

4.8

7.0

stopped, I

DEAD = 170 µA, ICP = 0 mA

RESET = 1, V

BB = VIN = 40 V, VIN ≠ VCP, coast,

–

35.4

40.0

stopped, I

DEAD = 170 µA, ICP = 15 mA

RESET = 1, V

BB = VIN = 15 V, VIN ≠ VCP, coast,

–

35.1

40.0

stopped, I

DEAD = 170 µA, ICP = 15 mA

RESET = 0

–

1.0

µA

VREG5 Output Voltage

REG5

No load

4.5

5.0

5.5

VREG5 Line Regulation

REG5

REG5 = 4.0 mA

–

5.0

–

VREG5 Load Regulation

REG5

REG5 = 0 - 4.0 mA, VBB = 40 V

–

5.0

–

VREG5 Short-Circuit Current

REG5M

BB = 40 V, VREG5 = 0

–

VCP Output Voltage Level

BB = 14 - 40 V, ICP = 15 mA

BB+9.5

BB+10.7 VBB+11.8

BB = 7 V, ICP = 15 mA

11.7

13.8

VCP Gate Drive

SR = 1, MODE = 0, ENABLE = PWM

–

VCP Output Voltage Ripple

CP(PP)

CP = 15 mA, VBB = 14 V - 40 V

–

500

–

VCP Pump-Up time

IN = VCP, VBB = 14 V - 40 V

–

2.5

–

IN = VCP, VBB = 7 V

–

3.5

–

VREG13 Quiescent Input Current

REG13

RESET = 1, V

BB = VIN = 40 V, coast, stopped

–

1.4

–

VREG13 Output Voltage

REG13

IN = 15 V, no load

12.6

13.3

14.0

VREG13 Dropout Voltage

REGDV

REG13 = 15 mA, VIN = 11 V - 14 V

–

0.7

–

VREG13 Line Regulation

REG13

IN = 15 V - 40 V, IREG13 = 15 mA

–

2.0

–

VREG13 Load Regulation

REG13

IN = 40 V, IREG13 = 0 - 15 mA

–

2.0

–

VREG13 Short-Circuit Current

REG13M

IN = 40 V, VREG13 = 0 (pulse)

–

Go-to-Sleep Response Time

sleep

RESET = 0 to V

REG5 = 4 V

–

µs

Wake-Up Response Time

wake

RESET = 1 to V

REG13, UV cleared

–

1.4

–

NOTES:

Typical Data is for design information only.

Negative current is defined as coming out of (sourcing) the specified device terminal.

Continued next page …

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