LTC4449 datasheet(4/14 Pages) AD

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LTC7067

Rev. 0

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ELECTRICAL CHARACTERISTICS The

denotes the specifications which apply over the specified operating

temperature range, otherwise specifications are at TA = 25°C (Note 2). VCC = VG1VCC = VG2VCC =10V, VG1RTN = VG2RTN = 0V, unless

otherwise noted.

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Gate Driver Output (G2)

VOH(G2)

G2 High Output Voltage

IG2 = −100mA, VOH(G2) = VG2Vcc – VG2

150

VOL(G2)

G2 Low Output Voltage

IG2 = 100mA, VOL(G2) = VG2 – VG2RTN

RG2_UP

G2 Pull-Up Resistance

VG2VCC–G2RTN =10V

1.5

RG2_DOWN

G2 Pull-Down Resistance

VG2VCC–G2RTN =10V

0.8

Switching Time

tPDLH(G1)

G1IN High to G1 High Propagation Delay

tPDHL(G1)

G1IN Low to G1 Low Propagation Delay

tPDLH(G2)

G2IN High to G2 High Propagation Delay

tPDHL(G2)

G2IN Low to G2 Low Propagation Delay

tr(G2)

G2 Output Rise Time

10% – 90%, CLOAD = 3nF

tf(G2)

G2 Output Fall Time

10% – 90%, CLOAD = 3nF

tr(G1)

G1 Output Rise Time

10% – 90%, CLOAD = 3nF

tf(G1)

G1 Output Fall Time

10% – 90%, CLOAD = 3nF

Note 1: Stresses beyond those listed under Absolute Maximum Ratings

may cause permanent damage to the device. Exposure to any Absolute

Maximum Rating condition for extended periods may affect device

reliability and lifetime.

Note 2: The LTC7067R is specified over –40°C to 150°C operating

junction temperature range. High junction temperature degrades operation

lifetimes; operating lifetime is derated for junction temperatures greater

than 125°C. Note that the maximum ambient temperature consistent with

these specifications is determined by specific operating conditions in

conjunction with board layout, the rated package thermal impedance and

other environment factors.

Note 3: TJ is calculated from the ambient temperature TA and power

dissipation PD according to the following formula.

TJ = TA + (PD • 40 °C/W)

Note 4: The total current includes both the current from G1VCC/G2VCC to

G1RTN/G2RTN and the current to SGND. Dynamic supply current is higher

due to the gate charge being delivered at the switching frequency.

Note 5: Rise and fall times are measured using 10% and 90% levels.

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