L6911E Просмотр технического описания (PDF) - STMicroelectronics

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производитель

L6911E

5-Bit programmable step down controller with synchronous rectification

STMicroelectronics 

Electrical characteristics

4

Electrical characteristics

L6911E

Table 5. Electrical characteristic (VCC = 12V; TA = 25°C unless otherwise specified)

Symbol

Parameter

Test condition

Min

VCC supply current

Icc Vcc supply current

UGATE and LGATE open

Power-ON

Turn-On VCC threshold

VOCSET = 4.5V

Turn-Off VCC threshold

VOCSET = 4.5V

3.6

Rising VOCSET threshold

ISS Soft start current

Oscillator

Free running frequency

Total Variation

∆VOSC Ramp amplitude

RT = OPEN

180

6 KΩ < RT to GND < 200 KΩ

-15

RT = OPEN

Reference and DAC

DACOUT voltage accuracy

VID Pull-Up voltage

VID0, VID1,VID2, VID3, VID25mV -1

see Table 6 on page 9;

TA = 0 to 70°C

Error amplifier

GBWP

SR

DC gain

Gain-bandwidth product

Slew-rate

COMP = 10pF

Gate drivers

IUGATE High side source current

VBOOT - VPHASE = 12V,

1

VUGATE - VPHASE = 6V

RUGATE High side sink resistance

VBOOT - VPHASE = 12V,

IUGATE = 300mA

ILGATE Low side source current

VCC = 12V, VLGATE = 6V

0.9

RLGATE Low side sink resistance

Vcc=12V, ILGATE = 300mA

Output driver dead time

PHASE connected to GND

Protections

Over voltage trip (VSEN/DACOUT) VSEN rising

IOCSET OCSET current source

VOCSET = 4.5V

170

Typ

5

1.26

10

200

1.9

3.1

88

15

10

1.3

2

1.1

1.5

120

117

200

Max

4.6

220

15

1

4

3

120

230

Unit

mA

V

V

V

µA

kHz

%

Vp-p

%

V

dB

MHz

V/µS

A

Ω

A

Ω

nS

%

µA

8/34

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