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TPS40140 Datasheet(PDF) 4 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) 4 Page - Texas Instruments

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2.5
ELECTRICAL CHARACTERISTICS
TPS40140
DUAL OR 2-PHASE, STACKABLE CONTROLLER
SLUS660A – SEPTEMBER 2005 – REVISED JULY 2006
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
VDD INPUT SUPPLY
Operating Voltage Range
4.5
12
15
V
Shutdown Current
UVLO_CE1 = UVLO_CE2 =GND
1
10
µA
BP5 INPUT SUPPLY
Operating Voltage Range
4.5
5.0
5.5
V
BP5 Operating Current
2
3
5
mA
Rising BP5 Turn-On
4.0
4.25
4.45
V
BP5 Turn-Off Hysteresis
100
220
400
mV
Standby Mode Current(1)
UVLO_CEx =1.7V
2.8
mA
VREG
7 V < VDD <15 V
4.5
5.1
5.5
V
Output current
0
100
mA
OSCILLATOR, RT
Phase Frequency Accuracy
RRT= 110 kΩ
300
kHz
Phase Frequency Set Range
150
1000
kHz
RT(1)
25 k
Ω≤ R
RT≤ 500 kΩ
0.7
V
UNDERVOLTAGE LOCKOUT (UVLO_CE1, UVLO_CE2)
Enable threshold, standby mode
Internal 5VREG regulator enabled
0.5
1.0
1.5
V
UVLO threshold
PWM Switching enabled
1.9
2
2.1
V
UVLO hysteresis
At the UVLO_CEx pin
40
mV
UVLO_CE1, UVLO_CE2 bias
1
µA
current(1)
PWM
2-phase, 4-phase, 8-phase or 16-phase
87.5%
Maximum duty cycle per
D
channel(1)
3-phase, 6-phase, or 12-phase
83.3%
VSHARE
IVSHR = 0
1.785
1.8
1.815
V
(1)
-30
µA<i
VSHR < 50µA
1.785
1.8
1.815
V
ERROR AMPLIFIER CH1, ERROR AMPLIFIER CH2
Input Common Mode Range(1)
0
0.7
2.0
V
Input Bias Current(1)
VFB = 0.7 V
10
nA
FBx Voltage(1)
0.6965
0.700
0.7035
V
Output Source Current
VCOMP = 1.1 V, VFB = 0.6 V
1
2
mA
Output Sink Current
VCOMP = 1.1V, VFB = BP5
1
2
mA
BW(1)
8
12
MHz
Open Loop Gain(1)
60
90
dB
VOLTAGE TRACKING (TRK1, TRK2)
After EN, before PWM and during hiccup mode
5
6.0
7.3
µA
SS source current
After first PWM pulse
10
12.5
15
µA
Fault Enable Threshold(1)
1.4
V
Internal Clamp Voltage(1)
2.4
V
SS sink resistance(1)
Pull-down resistance
1
k
(1)
Ensured by design. Not 100% production tested.
DEVICE RATINGS
4
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