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TPS40140 Datasheet(PDF) 5 Page - Texas Instruments

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Part No. TPS40140
Description  DUAL OR 2-PHASE, STACKABLE CONTROLLER
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPS40140 Datasheet(HTML) 5 Page - Texas Instruments

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TPS40140
DUAL OR 2-PHASE, STACKABLE CONTROLLER
SLUS660A – SEPTEMBER 2005 – REVISED JULY 2006
ELECTRICAL CHARACTERISTICS (continued)
T
J = –40°C to 85°C, (unless otherwise noted), VVDD = 7 V, VBP5 = 5 V, UVLO_CE1, UCLO_CE2: 10 kΩ, Pullup to BP5,
f
SW = 300 kHz, unless otherwise noted
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
CURRENT SENSE AMPLIFIERS (CS1, CS2)
Differential input voltage
-60
60
mV
Input offset voltage
CS1, CS2, Trimmed
-2.0
0
2.0
mV
Ac
Gain transfer to PWM COMP
5 mV < VCS < 60 mV, VCSRT = 1.5 V
12
13
14
V/V
Input common mode(1)
0
5.8
V
CSA
Input bias current
100
nA
DIFFERENTIAL AMPLIFIER (DIFFO)
Gain
1.0 V < VOUT < 5.8 V
0.997
1
1.003
V/V
Input Common Mode Range(1)
0
5.8
V
Output Source Current(1)
VOUT– VVGSNS = 2 V, VDIFFO > 1.98 V,
2
VDD-VOUT > 2 V
Output Source Current(1)
VOUT– VVGSNS = 2 V, VDIFFO > 2.02 V VDD-VOUT
1
mA
=1 V
Output Sink Current(1)
VOUT– VVGSNS = 2 V,
2
VDIFFO > 2.02 V
Unity gain bandwidth(1)
5
8
MHz
Input Impedance, non inverting(1) VOUT to GND
60
k
Input Impedance, inverting(1)
GSNS to DIFFO
60
GATE DRIVERS
HDRV1, HDRV2 Source On
VBOOT1, VBOOT2 = 5 V, VSW1 = VSW2 = 0 V,
1
2
3
Resistance
Sourcing 100 mA
HDRV1, HDRV2 Sink On
VVREG = 5 V, VSW1 = VSW2 = 0 V,
0.5
1.2
2
Resistance
Sinking 100 mA
LDRV1, LDRV2 Source On
VVREG = 5 V, VSW1 = VSW2 = 0 V,
1
2
3
Resistance
Sourcing 100 mA
LDRV1, LDRV2 Sink On
VVREG = 5V, VSW1 = VSW2 = 0 V,
0.3
0.65
1
Resistance
Sinking 100 mA
tRISE HDRVx rise time(1)
CLOAD= 3.3 nF
25
75
tFALL HDRVx fall time(1)
CLOAD= 3.3nF
25
75
tRISE LDRVx rise time(1)
CLOAD= 3.3nF
25
75
ns
tFALL LDRVx fall time(1)
CLOAD= 3.3nF
20
60
Minimum Controllable On-Time
CLOAD= 3.3nF
50
OUTPUT UNDERVOLTAGE FAULT
VFB relative to VREF
-19%
-16.5%
-14%
Undervoltage delay(1)
3
µs
CURRENT LIMIT
IILIM
Output current
18.8
20
21.2
µA
POWER GOOD
PGOOD transition low threshold
VFB rising relative to VREF
10%
12.5%
15%
PGOOD transition low threshold
VFB falling relative to VREF
-15%
-12.5%
-10%
PGOOD trip hysteresis
2%
5%
PGOOD Delay(1)
10
µs
Low level output voltage, VOL
IPGOOD = 4 mA
0.35
0.4
V
PGOOD Bias Current
VPGOOD= 5.0 V
-2
1
2
µA
(1)
Ensured by design. Not 100% production tested.
Submit Documentation Feedback
DEVICE RATINGS
5


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