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TPS65311QRVJRQ1 Fiches technique(PDF) 5 Page - Texas Instruments

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No de pièce TPS65311QRVJRQ1
Description  High-Voltage Power-Management IC for Automotive Safety Applications
Download  49 Pages
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

TPS65311QRVJRQ1 Fiches technique(HTML) 5 Page - Texas Instruments

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TPS65311-Q1
www.ti.com
SLVSCA6A – OCTOBER 2013 – REVISED OCTOBER 2013
ELECTRICAL CHARACTERISTICS
VIN = VINPROT 4.8 V to 40 V, VSUPx = 3 V to 5.5 V, EXTSUP = 0 V, TJ(max) = 125°C, unless otherwise noted
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
INPUT VOLTAGE-CURRENT CONSUMPTION
Buck regulator operating range, Voltage on VIN and
VIN
Device operating range
4
50
V
VINPROT pins
Falling VIN
3.5
3.6
3.8
VPOR
Power-on reset threshold
V
Rising VIN
3.9
4.2
4.3
VPOR_hyst
Power-on reset hysteresis on VIN
0.47
0.6
0.73
V
All off, wake active, VIN = 13 V
ILPM0
LPM0 current consumption(1)(2)
44
μA
Total current into VSSENSE, VIN and VINPROT
LPM0 current (commercial vehicle
All off, wake active, VIN = 24.5 V
ILPM0
60
μA
application) consumption(3)(2)
Total current into VSSENSE, VIN and VINPROT
BUCK1 = on, VIN = 13 V, EXTSUP = 0 V, Qg of
ACTIVE total current
IACTIVE1
BUCK1 FETs = 15 nC.
32
mA
consumption(1)(4)
Total current into VSSENSE, VIN and VINPROT
BUCK1/2/3 = on, VIN = 13 V,
ACTIVE total current
IACTIVE123
Qg of BUCK1 FETs = 15 nC.
40
mA
consumption(1)(4)
Total current into VSSENSE, VIN and VINPROT
BUCK1/2/3, LDO, BOOST, high-side switch = on,
VIN = 13 V, Qg of BUCK1 FETs = 15 nC.
IACTIVE1235
ACTIVE current consumption(1)(4)
31
mA
EXTSUP = 5 V from BOOST
Total current into VSSENSE, VIN and VINPROT
BUCK1/2/3, LDO, BOOST, high-side switch = on,
VIN = 13 V, Qg of BUCK1 FETs = 15 nC, EXTSUP =
IACTIVE1235_noEXT ACTIVE current consumption
(1) (4)
53
mA
open
Total current into VSENSE, VIN and VINPROT
BUCK CONTROLLER (BUCK1)
VBUCK1
Adjustable output voltage range
3
11
V
Internal reference voltage in
VSense1_NRM
VSENSE1 pin, load = 0 mA, Internal REF = 0.8 V
–1%
1%
operating mode
Maximum sense voltage VSENSE1 = 0.75 V (low duty
60
75
90
cycle)
VS1-2
VS1-2 for forward OC in CCM
mV
Minimum sense voltage VSENSE 1 = 1 V (negative
–65
–37.5
–23
current limit)
ACS
Current sense voltage gain
∆VCOMP1 / ∆ (VS1 - VS2)
4
8
12
RSTN and ERROR mode transition,
tOCBUCK1_BLK
when over current detected for >
1
ms
tOCBUCK1_BLK
tDEAD_BUCK1
Shoot-through delay, blanking time
25
ns
fSWBUCK1
Switching frequency
fOSC / 10
High-side minimum on time
100
ns
DC
Duty cycle
Maximum duty cycle
98.75%
EXTERNAL NMOS GATE DRIVERS FOR BUCK CONTROLLER
IGpeak
Gate driver peak current
VREG = 5.8 V
0.6
A
IG current for external MOSFET = 200 mA,
RDSON_DRIVER
Source and sink driver
5
10
VREG = 5.8 V, VBOOT1-PH1 = 5.8 V
VDIO1
Bootstrap diode forward voltage
IBOOT1 = –200 mA, VREG-BOOT1
0.8
1.1
V
ERROR AMPLIFIER (OTA) FOR BUCK CONTROLLERS AND BOOST CONVERTER
EMPTY
COMP1/2/3/5 = 0.8 V; source/sink = 5 µA,
gmEA
Forward transconductance
0.9
mmhos
test in feedback loop
AEA
Error amplifier DC gain
60
dB
(1)
TA = 25°C
(2)
Quiescent Current Specification does not include the current flow through the external feedback resistor divider. Quiescent Current is
non-switching current, measured with no load on the output with VBAT = 13V.
(3)
TA = 130°C
(4)
Total current consumption measured on EVM includes switching losses.
Copyright © 2013, Texas Instruments Incorporated
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