TPS23754-1 datasheet(6/45 Pages) TI1

Part #	TPS23754-1

Description	High-Power/High-Efficiency PoE Interface and DC-DC Controller

Download	45 Pages

Scroll/Zoom	100%

Manufacturer	TI1 [Texas Instruments]

Direct Link	http://www.ti.com

Logo

6 / 45 page

TPS23754, TPS23754-1, TPS23756

SLVS885H – OCTOBER 2008 – REVISED OCTOBER 2015

www.ti.com

6.5 Electrical Characteristics

Unless otherwise noted: CS = COM = APD = CTL = RTN = ARTN, GATE and GAT2 float, RFRS= 68.1 kΩ, RBLNK= 249 kΩ, DT

= VB, PPD = VSS, T2P open, CVB = CVC = 0.1 μF, RDEN = 24.9 kΩ, RCLS open, 0 V ≤ (VDD, VDD1) ≤ 57 V, 0 V ≤ VC ≤ 18 V,

–40°C

≤ TJ ≤ 125°C. Typical specifications are at 25°C.

CONTROLLER SECTION ONLY

[VSS = RTN and VDD = VDD1] or [VSS = RTN = VDD], all voltages referred to [ARTN, COM]

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VC

VC rising ‘754

14.3

15

15.7

VCUV

VC rising ‘756

8.7

9

9.3

UVLO

V

Hysteresis ‘754 (1)

6.2

6.5

6.8

VCUVH

Hysteresis ‘756 (1)

3.3

3.5

3.7

Operating current

VC = 12 V, CTL = VB, RDT = 68.1 kΩ

0.7

0.92

1.2

mA

TPS23756, VDD1 = 10.2 V, VC(0) = 0 V

50

85

175

TPS23756, VDD1 = 35 V, VC(0) = 0 V

27

45

92

Bootstrap start-up time,

tST

ms

CVC = 22 μF

TPS23754, VDD1 = 19.2 V, VC(0) = 0 V

49

81

166

TPS23754, VDD1 = 35 V, VC(0) = 0 V

44

75

158

TPS23754, VDD1 = 19.2 V, VC = 13.9 V

1.7

3.4

5.5

Start-up current source is IVC

TPS23756, VDD1 = 10.2 V, VC = 8.6 V

0.44

1.06

1.8

mA

TPS23754, TPS23756, VDD1 = 48 V, VC = 0 V

2.7

4.8

6.8

VB

Voltage

6.5 V

≤ VC ≤ 18 V, 0 ≤ IVB ≤ 5 mA

4.8

5.1

5.25

V

FRS

CTL = VB, measure GATE

Switching frequency

kHz

RFRS = 68.1 kΩ

227

253

278

DMAX

Duty cycle

CTL= VB, measure GATE

76%

78%

80%

VSYNC

Synchronization

Input threshold

2

2.2

2.4

V

CTL

VZDC

0% duty cycle threshold

VCTL ↓ until GATE stops

1.3

1.5

1.7

V

Input resistance

70

100

145

k

Ω

CS

VCSMAX

Maximum threshold voltage

VCTL = VB, VCS rising until GATE duty cycle drops

0.5

0.55

0.6

V

Internal slope compensation

VSLOPE

Peak voltage at maximum duty cycle, referenced to CS

120

155

185

mV

voltage

Peak slope compensation

ISL_EX

VCTL = VB, ICS at maximum duty cycle

30

42

54

μA

current

Bias current (sourcing)

DC component of ICS

1

2.5

4.3

μA

GATE

Source current

VCTL = VB, VC = 12 V, GATE high, pulsed measurement

0.37

0.6

0.95

A

Sink current

VCTL = VB, VC = 12 V, GATE low, pulsed measurement

0.7

1

1.4

A

GAT2

VCTL = VB, VC = 12 V, GAT2 high, RDT = 24.9 kΩ, pulsed

Source current

0.37

0.6

0.95

A

measurement

VCTL = VB, VC = 12 V, GAT2 low, RDT = 24.9 kΩ, pulsed

Sink current

0.7

1

1.4

A

measurement

(1)

The hysteresis tolerance tracks the rising threshold for a given device.

6

Submit Documentation Feedback

Product Folder Links: TPS23754 TPS23754-1 TPS23756

Similar Part No. - TPS23754-1

Manufacturer	Part #	Datasheet	Description
Texas Instruments	TPS23754-1	1Mb / 41P	[Old version datasheet] High Power/High Efficiency PoE Interface and DC/DC Controller
Texas Instruments	TPS23754-1	1Mb / 41P	[Old version datasheet] High Power/High Efficiency PoE Interface and DC/DC Controller

More results

Similar Description - TPS23754-1

Manufacturer	Part #	Datasheet	Description
Texas Instruments	TPS23754	1Mb / 41P	[Old version datasheet] High Power/High Efficiency PoE Interface and DC/DC Controller
	TPS23754	1Mb / 41P	[Old version datasheet] High Power/High Efficiency PoE Interface and DC/DC Controller
	TPS23757	1Mb / 37P	[Old version datasheet] High Efficiency PoE Interface and DC/DC Controller
	TPS23785B	1Mb / 47P	[Old version datasheet] High-Power, High-Efficiency PoE PD and DC-to-DC Controller
	TPS23751	1Mb / 47P	[Old version datasheet] IEEE 802.3at PoE Interface with Wide Range High Efficiency DC-DC Controller
	TPS23751	336Kb / 7P	[Old version datasheet] IEEE 802.3at PoE Interface with Wide Range High Efficiency DC/DC Controller
ON Semiconductor	NCP1081	239Kb / 17P	Integrated High Power PoE-PD Interface & DC-DC Converter Controller September, 2008 ??Rev. 4
ON Semiconductor	NCP1083	263Kb / 18P	Integrated High Power PoE-PD Interface & DC-DC Converter Controller May, 2013 ??Rev. 3
Silicon Standard Corp.	SS6650	496Kb / 6P	High-Efficiency, Inverting DC/DC Controller
Lowpower Semiconductor ...	LP6240	311Kb / 6P	High Efficiency Boost DC/DC Controller

More results

TPS23754-1 Datasheet(PDF) 6 Page - Texas Instruments

TPS23754-1 Datasheet(HTML) 6 Page - Texas Instruments

Similar Part No. - TPS23754-1

Similar Description - TPS23754-1

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45

Datasheet Download

Link URL