TPS51650 datasheet(6/51 Pages) TI1

Part #	TPS51650

Description	Dual-Channel (3-Phase CPU/2-Phase GPU) SVID, D-CAP Step-Down Controller for IMVP-7 VCORE with Two Integrated Drivers

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Manufacturer	TI1 [Texas Instruments]

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TPS51650, TPS59650

SLUSAV7

– JANUARY 2012

www.ti.com

ELECTRICAL CHARACTERISTICS (continued)

over recommended free-air temperature range, VV5 = VV5DRV = 5.0 V; VV3R3 = 3.3 V; VxGFB = VPGND = VGND, VxVFB = VCORE

(Unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

TIMERS: SLEW RATE, ISLEW, ADDR, ON-TIME AND I/O TIMING

VBOOT > 0 V, SLEWRATE = 12 mV/µs, no faults,

tSTARTUP1

Start-up time

time from VR_ON until the controller responds to

5

ms

SVID commands

SLEWRATE = 12mV/

µs, VR_ON goes ‘HI’,

SLSTRTSTP

xVFB slew soft-start / soft-stop

1.25

1.50

1.75

mV/

µs

VR_ON goes

‘LO = ‘Soft-stop’

VSLEWA

≤ 0.30V (Also disables SVID CLK timer)

10.0

12.0

14.5

VSLEWA = 0.4 V

3

4

5

VSLEWA = 0.6 V

7

8

10

0.75 V

≤ VSLEWA ≤ 0.85 V

10.0

12.0

14.5

SLSET

Slew rate setting

mV/

µs

VSLEWA = 1.0 V

16

VSLEWA = 1.2 V

20

VSLEWA = 1.4 V

23

VSLEWA = 1.6 V

26

Time from xVFB out of +220 mV VDAC boundary

tPGDDGLTO

xPGOOD deglitch time

5

15

µs

to xPGOOD low.

Time from xVFB out of -315 mV VDAC boundary

tPGDDGLTU

xPGOOD deglitch time

50

100

µs

to xPGOOD low.

TPS51650

300

317

340

RCF= 20 kΩ, VBAT= 12 V,

VDAC= 1.1 V (250 kHz)

TPS59650

298

317

340

TPS51650

245

261

284

RCF= 24 kΩ, VBAT= 12 V,

VDAC= 1.1 V (300 kHz)

TPS59650

243

261

284

TPS51650

210

223

242

RCF= 30 kΩ, VBAT= 12 V,

VDAC= 1.1 V (350 kHz)

TPS59650

208

223

242

TPS51650

184

196

216

RCF= 39 kΩ, VBAT= 12 V,

VDAC= 1.1 V (400 kHz)

TPS59650

181

196

216

tTON_CPU

CPU on-time

ns

TPS51650

169

181

201

RCF= 56 kΩ, VBAT= 12 V,

VDAC= 1.1 V (450 kHz)

TPS59650

166

181

201

TPS51650

153

164

184

RCF= 75 kΩ, VBAT= 12 V,

VDAC= 1.1 V (500 kHz)

TPS59650

150

164

184

TPS51650

140

151

171

RCF= 100 kΩ, VBAT= 12 V,

VDAC= 1.1 V (550 kHz)

TPS59650

137

151

171

TPS51650

130

140

160

RCF= 150 kΩ, VBAT= 12 V,

VDAC= 1.1 V (600 kHz)

TPS59650

127

140

160

6

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