LTC4241IGN datasheet(2/16 Pages) LINER

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LTC4241

sn4241 4241f

ORDER PART

NUMBER

TJMAX = 150°C, θJA = 135°C/W

LTC4241CGN

LTC4241IGN

ABSOLUTE

AXI U

RATI GS

PACKAGE/ORDER I FOR ATIO

(Note 1)

The q denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. V12VIN = 12V, VVEEIN = –12V, V3VIN = 3.3V, V5VIN = 5V,

VAUXIN = 3.3V. (Note 2)

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

IDD

V12VIN Supply Current

ON = V12VIN

2.5

VAUXIN Supply Current

AUXON = VAUXIN

0.5

1.5

VLKO

Undervoltage Lockout,

12VIN

6.5

10.8

Low-to-High Transition

3VIN

2.25

2.50

2.75

5VIN

3.65

3.90

4.15

AUXIN

2.35

2.60

2.85

VLKH

Undervoltage Lockout Hysteresis

3VIN, 5VIN

AUXIN

120

VSENSE5(TH)

Current Limit Sense Voltage

V5VOUT = 0V

5.5

14.5

Threshold (V5VIN – V5VSENSE)V5VOUT > 4V

VSENSE3(TH)

Current Limit Sense Voltage

V3VOUT = 0V

5.5

14.5

Threshold (V3VIN – V3VSENSE)V3VOUT > 2V

tCB

Circuit Breaker Trip Filter Time

(V5VIN – V5VSENSE) = Step 0 to 100mV

µs

(VAUXIN – VAUXSENSE) = Step 0 to 100mV

µs

IGATE

GATE Pin Output Current

ON High, FAULT High, VGATE = GND

–20

–60

–100

µA

ON Low, FAULT High, VGATE = 5V

200

µA

ON High, FAULT Low, VGATE = 5V

Consult LTC Marketing for parts specified with wider operating temperature ranges.

GN PACKAGE

20-LEAD NARROW PLASTIC SSOP

TOP VIEW

12VOUT

VEEOUT

5VOUT

5VIN

5VSENSE

GATE

3VSENSE

3VIN

AUXON

AUXIN

12VIN

VEEIN

3VOUT

TIMER

FAULT

PWRGD

GND

AUXGATE

AUXSENSE

Supply Voltages

12VIN ................................................................... 14V

VEEIN .................................................................. –14V

AUXIN ................................................................... 7V

Input Voltage

ON ......................................................... –0.3V to 14V

AUXON .................................................. –0.3V to 14V

Output Voltages

(FAULT, PWRGD) .................................. –0.3V to 14V

Analog Voltages

TIMER, 3VIN, 3VSENSE, GATE,

5VSENSE, 5VIN ............................. –0.3V to (12VIN + 0.3V)

3VOUT, 5VOUT ........................................ –0.3V to 14V

AUXSENSE .......................... –0.3V to (AUXIN + 0.3V)

VEEOUT ................................................ –14V to + 0.3V

12VOUT .................................................. –0.3V to 14V

AUXGATE ......................... Internally Limited (Note 3)

Operating Temperature Range

LTC4241CGN ........................................... 0

°C to 70°C

LTC4241IGN ........................................–40

°C to 85°C

Storage Temperature Range ..................–65

°C to 150°C

Lead Temperature (Soldering,10sec).................... 300

°C

DC ELECTRICAL CHARACTERISTICS

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