TPS40101 datasheet(5/35 Pages) TI

номер детали	TPS40101

подробное описание детали	MIDRANGE INPUT SYNCHRONOUS BUCK CONTROLLER WITH ADVANCED SEQUENCING AND OUTPUT MARGINING

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DEVICE INFORMATION

RT

BIAS

GND

SS

GM

PGND

7

8

9

10

11

12

RGE PACKAGE

(BOTTOM VIEW)

24

23

22

21

20

19

MGU

MGD

SYNC

PG

VO

ISNS

1

2

3

4

5

6

18

17

16

15

14

13

TPS40101

SLUS726 – SEPTEMBER 2006

ELECTRICAL CHARACTERISTICS (continued)

-40

°C ≤ T

A = TJ≤ 85°C, VVDD = 12 V, RRT = 182 kΩ, RGM = 232 kΩ, RILIM = 121 kΩ (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

TRACKING AMPLIFIER

VTRKOS = VTRKIN - VO ; VVO≤ 2 V

7

25

40

VTRKOS

Tracking amplifier input offset voltage

mV

VTRKOS = VTRKIN - VO ; 2 V < VVO≤ 6 V

-5

25

40

VTRKCM

Input common mode, active range

0

6

4.5 V

≤ V

VDD ≤ 5.5 V

0

3.6

VTRK

Tracking amplifier voltage range

5 V < VVDD ≤ 18 V(5)

0

6

V

VVDD = 12 V

5.0

6.5

8.0

VHTRKOUT

High-level output voltage, TRKOUT

VVDD = 4.5 V

3.2

3.6

VLTRKOUT

Low-level output voltage, TRKOUT

0

0.5

ISRCTRKOUT

Source current, TRKOUT

0.65

2.00

mA

ISNKTRKOUT

Sink current, TRKOUT

1

2

VTRKDIF

Differential voltage from TRKIN to VO

18

V

GBWPTRK

Tracking amplifier gain bandwidth product(6)

1

MHz

AVOLTRK

Tracking amplifier open loop DC gain(6)

60

dB

PROGRAMMABLE UVLO

VUVLO

Undervoltage lockout threshold

1.285

1.332

1.378

V

IUVLO

Hysteresis current

9.0

10.0

10.8

µA

INTERNALLY FIXED UVLO

VUVLOFON

Fixed UVLO turn-on voltage at VDD pin

-40

°C ≤ T

A < 125°C

3.850

4.150

4.425

V

VUVLOFOFF

Fixed UVLO turn-off voltage at VDD pin

3.750

4.06

4.35

VUVLOHYST

UVLO hysteresis at VDD pin

85

mV

THERMAL SHUTDOWN

TSD

Thermal shutdown temperature(6)

130

165

°C

TSDHYST

Hysteresis(6)

25

(5)

Amplifier can track to the lesser of 6 V or (VDD× 0.95)

(6)

Ensured by design. Not production tested.

5

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