LM25007

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SNVS401C – JANUARY 2006 – REVISED FEBRUARY 2013

Electrical Characteristics

(1)

Specifications with standard type are for TJ = 25°C only; limits in boldface type apply over the full Operating Junction

Temperature (TJ) range. Minimum and Maximum limits are guaranteed through test, design, or statistical correlation. Typical

values represent the most likely parametric norm at TJ = 25°C, and are provided for reference purposes only. Unless

otherwise stated the following conditions apply: VIN = 24V, RON = 200kΩ. .

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Startup Regulator

VCC Reg

VCC Regulator Output

6.6

7

7.4

V

VCC Current Limit

(2)

11

mA

VCC Supply

VCC undervoltage Lockout Voltage

6.3

V

(VCC increasing)

VCC Undervoltage Hysteresis

206

mV

VCC UVLO Delay (filter)

3

µs

Operating Current (ICC)

Non-Switching, FB = 3V

500

675

µA

Shutdown/Standby Current

RON/SD = 0V

70

150

µA

Switch Characteristics

Buck Switch Rds(on)

ITEST = 200mA,

0.74

1.34

Ω

VBST

−VSW = 6.3V(3)

Gate Drive UVLO (VBST – VSW)

Rising

3.4

4.5

5.5

V

Gate Drive UVLO Hysteresis

400

mV

Current Limit

Current Limit Threshold

535

725

900

mA

Current Limit Response Time

Iswitch Overdrive = 0.1A Time to

225

ns

Switch Off

OFF time generator (test 1)

FB=0V, RCL = 100K

17

µs

OFF time generator (test 2)

FB=2.3V, RCL = 100K

2.65

µs

On Time Generator

TON -1

Vin = 10V

2.15

2.77

3.5

µs

Ron = 200K

TON -2

Vin = 40V

450

615

810

ns

Ron = 200K

Remote Shutdown Threshold

Rising

0.45

0.7

1.1

V

Remote Shutdown Hysteresis

40

mV

Minimum Off Time

Minimum Off Timer

FB = 0V

300

ns

Regulation and OV Comparators

FB Reference Threshold

Internal reference

2.445

2.5

2.550

V

Trip point for switch ON

FB Over-Voltage Threshold

Trip point for switch OFF

2.875

V

FB Bias Current

100

nA

Thermal Shutdown

Tsd

Thermal Shutdown Temp.

165

°C

Thermal Shutdown Hysteresis

25

°C

Thermal Resistance

θJA

Junction to Ambient

DGK Package

200

°C/W

NGT Package

40

°C/W

(1)

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

All hot and cold limits are guaranteed 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

loading.

(3)

For devices procured in the WSON-8 package the Rds(on) limits are guaranteed by design characterization data only.

Copyright © 2006–2013, Texas Instruments Incorporated

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