LTC2926IGN datasheet(4/28 Pages) LINER

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LTC2926

2926fa

The

● denotes the speciﬁcations which apply over the full operating

temperature range, otherwise speciﬁcations are at TA = 25°C. VCC = 3.3V unless otherwise speciﬁed.

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: All currents into the device pins are positive; all currents out of

the device pins are negative. All voltages are referenced to ground unless

otherwise speciﬁed.

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VRAMPBUF(OH)

RAMPBUF Pin Output High Voltage

(VCC – VRAMPBUF)

IRAMPBUF = –3mA

●

Tracking Channels

IERROR(%)

IFBn to ITRACKn Current Mismatch

(IFBn – ITRACKn)/ITRACKn • 100%

ITRACKn = –10µA

ITRACKn = –1mA

●

±3

VTRACK

TRACK Pins Voltage

ITRACKn = –10µA

ITRACKn = –1mA

●

0.776

0.800

0.824

VFB(REF)

FB Pins Internal Reference Voltage

VTRACKn = VCC, IFBn = 0mA

●

0.784

0.800

0.816

IFB(LEAK)

FB Pins Leakage Current

VFBn = 0.8V, VCC = 5.5V

●

±10

VFB(CLAMP)

FB Pins Clamp Voltage

–1mA < IFBn < –1µA

●

1.7

2.0

2.4

Master Ramp and Supply

ΔVMGATE

MGATE Pin External N-Channel Gate

Drive (VMGATE – VCC)

IMGATE = –1µA

●

5.0

5.5

6.0

IMGATE(UP)

MGATE Pin Pull-Up Current

Fault Latch Clear, VON High, VMGATE = 3.3V

●

–7

–10

–13

µA

IMGATE(DN)

MGATE Pin Pull-Down Current

Fault Latch Clear, VON Low, VMGATE = 3.3V

●

710

µA

IMGATE(FAULT)

MGATE Pin Fault Pull-Down Current

Fault Latch Set, VON High, VMGATE = 5.5V,

VCC = 5.5V

●

520

Slave Supplies

ΔVSGATE

SGATE Pins External N-Channel Gate

Drive (VSGATEn – VCC)

ISGATEn = –1µA, VFBn = 0.75V

●

5.0

5.5

6.0

ISGATE(UP)

SGATE Pins Pull-Up Current

Fault Latch Clear, VFBn = VFB(REF) – 10mV,

VSGATEn = 3.3V

●

–6

–10

–13

µA

ISGATE(DN)

SGATE Pins Pull-Down Current

Fault Latch Clear, VFBn = VFB(REF) + 10mV,

VSGATEn = 3.3V

●

610

µA

ISGATE(UPFST)

SGATE Pins Fast Pull-Up Current

Fault Latch Clear, VFBn = 0V, VSGATEn = 3.3V

●

–21

–30

–39

µA

ISGATE(DNFST)

SGATE Pins Fast Pull-Down Current

Fault Latch Clear, VFBn = 1V, VSGATEn = 3.3V

●

µA

ISGATE(FAULT)

SGATE Pins Fault Pull-Down Current

Fault Latch Set, VON High, VSGATEn = 5.5V,

VCC = 5.5V

●

520

Remote Sense Switches

ΔVRSGATE

RSGATE Pin External N-Channel Gate

Drive (VRSGATE – VCC)

IRSGATE = –1µA

●

5.0

5.5

6.0

IRSGATE(UP)

RSGATE Pin Pull-Up Current

Fault Latch Clear, Switches On, VRSGATE = 0V ●

–7

–10

–13

µA

IRSGATE(DN)

RSGATE Pin Pull-Down Current

Fault Latch Clear, Switches Off,

VRSGATE = 3.3V

●

710

µA

IRSGATE(FAULT)

RSGATE Pin Fault Pull-Down Current

Fault Latch Set, Switches Off,

VRSGATE = 5.5V, VCC = 5.5V

●

520

VRSGATE(TH)

RSGATE Pin Threshold Voltage

Ramping Completed on Pin Low, RSGATE

Falling

●

1.10

1.23

1.36

RSW(ON)

Remote Sense Switch On-Resistance

Switches On, VDn = VCC + 0.3V, ISn = –10mA

●

210

Note 3: The MGATE, SGATE1, SGATE2, RSGATE and STATUS/PGI pins are

internally limited to a minimum of 11.5V. Driving these pins to voltages

beyond the clamp level may damage the part.

ELECTRICAL CHARACTERISTICS

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