1640AL Просмотр технического описания (PDF) - Linear Technology

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Компоненты Описание

производитель

1640AL

Negative Voltage Hot Swap Controller

Linear Technology 

LT1640AL/LT1640AH

TEST CIRCUIT

R

V+

5k

5V

VOV

PWRGD/PWRGD VDD

OV

DRAIN

LT1640AL/LT1640AH

UV

GATE

VUV

VEE

SENSE

Figure 1. Test Circuit

+– 48V

VDRAIN

VSENSE

1640A F01

TIMING DIAGRAMS

2V

OV

0V

GATE

1.223V

1.203V

tPHLOV

tPLHOV

1V

Figure 2. OV to GATE Timing

1V

1640A F02

2V

UV

0V

GATE

1.223V

1.243V

tPHLUV

tPLHUV

1V

Figure 3. UV to GATE Timing

1V

1640A F03

SENSE

GATE

50mV

tPHLSENSE

1V

Figure 4. SENSE to GATE Timing

1.8V

DRAIN

VEE

tPLHPG

1.4V

tPHLPG

1640A F04

PWRGD

VEE

1.8V

DRAIN

0V

1V

tPLHPG

1V

1.4V

tPHLPG

PWRGD

1V

VPWRGD – VDRAIN = 0V

1V

1640A F05

Figure 5. DRAIN to PWRGD/PWRGD Timing

6

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