Internal Precision Reference . . . 1.25 V ±1%
(25°C)
D
On/Off Switch for CH1/3 Pair and Ch2 (see
Function Table)
D
0 to 100% Dead Time Control
D
Totem Pole Output Stage
D
Smal l Package . . . 16 Pin TSSOP
description
The TPS5100 is a triple PWM control circuit, primarily designed to compose the power supply for LCD display .
Each PWM channel has own error amplifier, PWM comparator, dead-time control and output driver. The
trimmed voltage reference, oscillator, undervoltage lockout and short circuit protection are common for all
channels.
This device includes two boost exclusive circuits (ch1,3) and a buck-boost exclusive circuit (ch2). The operating
frequency is set with external resister and capacitor, and dead time is continuously adjustable form 0% to 100%
duty cycle with resistive divider network. Soft start function can be implemented by adding a capacitor to dead
time divider network. Two dead time control inputs are assigned for ch1,3 pair and ch2 individually and each
dead time control input can be used to control on/off operation. TPS5100 can operate from 2.5 V supply voltage
and ch1,3 pair and ch2 operate with reverse phase switching each other to achieve efficient operation in low
power and battery powered system.
The TPS5100 is characterized for operation from –20°C to 85°C.
FUNCTION TABLE
DTC1/3 >. 0.3 V, DTC2 > 0.3 VON HON LON H
DTC1/3 > 0.3 V, DTC2 <. 0.2 VON HOFF HON H
DTC1/3 < 0.2 V, DTC2 > 0.3 VOFF LON LOFF L
DTC1/3 < 0.2 V, DTC2 < 0.2 VOFF LOFF HOFF L
AVAILABLE OPTIONS
T
A
–20°C to 85°CTPS5100PW
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
OUTPUT
CH-1CH-2CH-3
PACKAGE
TSSOP
(PW)
Copyright 2000, Texas Instruments Incorporated
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
1
TPS5100
TRIPLE-CHANNEL PWM CONTROL CIRCUITS
SLVS169 – JANUARY 2000
functional block diagram
+
_
+
_
+
–
+
+
_
+
_
–
+
+
_
–
+
+
_
–
+
+
_
+
–
+
–
+
–
–
+
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
Input threshold voltage
V
Input bias current
nA
Input threshold voltage (DTC1/3) (see Note 3)
f
500 kH
V
Input threshold voltage (DTC2) (see NOte 3)
f
500 kH
V
TPS5100
TRIPLE-CHANNEL PWM CONTROL CIRCUITS
SLVS169 – JANUARY 2000
electrical characteristics over recommended operating free-air temperature range, VCC = 3.3 V
(unless otherwise noted) (see Note 1)
PARAMETERTEST CONDITIONSMINTYPMAXUNIT
V
REF
V
REF(dev)
R
EGIN
R
EGL
I
OS
NOTES: 1. Typical values of all parameters except for V
undervoltage lockout section
V
TH
V
TL
V
hys
NOTE 1: Typical values of all parameters except for V
protection control section
I
SCP
V
T2
V
T3
V
R
V
T5
NOTE 1: Typical values of all parameters except for V
oscillator section
f
OSC
f
dV
f
dT
I
CT/RT
V
OSCH
V
OSCL
NOTE 1: Typical values of all parameters except for V
dead time control section
I
BDT1/3
I
BDT2
V
T1
V
T0(DTC1/3)
V
T100(DTC1/3)
V
T0(DTC2)
V
T100(DTC2)
NOTES: 1: Typical values of all parameters except for V
Reference voltageI
Reference voltage change with T
Input regulationI
Output regulationI
Short-circuit output currentV
2. The deviation parameter V
recommended free-air temperature range (–20°C to 85°C).
FrequencyCT = 130 pF,RT = 7 kΩ400500600kHz
Frequency change with V
Frequency change with T
Output source current–180–200–220µA
H level output voltage0.9511.05V
L level output voltage0.350.400.45V
PARAMETERTEST CONDITIONSMINTYPMAXUNIT
p
Comparator threshold voltage0.20.250.3V
p
p
3. These specifications are not production tested. They are specified as ensured values on circuit design.
CC
A
A
REF(dev)
REF(dev)
is defined as the difference between the maximum and minimum values obtained over the
REF(dev)
REF(dev)
REF(dev)
REF(dev)
= –1 mA,TA = 25°C1.237 1.250 1.263V
REF
I
= –1 mA,See Note 21525mV
REF
= –1 mA,VCC = 2.5 V to 7 V25mV
REF
= –0.1 mA to –1 mA15mV
REF
= 0–2–10–30mA
REF
and fdT are specified at TA = 25°C.
and fdT are specified at TA = 25°C.
CH-1, 31.101.151.20
CH-20.200.250.30
and fdT are specified at TA = 25°C.
VCC = 2.5 V,
CT = 130 pF,
CT = 130 pF,RT = 7 kΩ5%10%
and fdT are specified at TA = 25°C.
V
V
Duty = 0%
Duty = 100%
Duty = 0%
Duty = 100%
and fdT are specified at TA = 25°C.
= 0.35 V to 1.05 V200
DTC1/3
= 0.35 V to 1.05 V±2±20
DTC2
OSC
OSC
TA = 25°C,
RT = 7 kΩ
=
=
0.30.40.5
z
0.911.1
0.30.40.5
z
0.911.1
1%2%
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
3
TPS5100
IIBInput bias current
nA
VIRInput voltage range
V
Output voltage swing
V
V
V
VT4Input bias voltage
mV
VOHHigh-level output voltage
V
VOLLow-level output voltage
V
TRIPLE-CHANNEL PWM CONTROL CIRCUITS
SLVS169 – JANUARY 2000
electrical characteristics over recommended operating free-air temperature range, VCC = 3.3 V
(unless otherwise noted) (see Note 1) (continued)
error amplifier section
PARAMETERTEST CONDITIONSMINTYPMAXUNIT
V
IO
A
VD
B
1
V
OM+
V
OM–
I
OM+
I
OM–
NOTE 1: Typical values of all parameters except for V
output section
t
r
t
f
NOTE 1: Typical values of all parameters except for V
total device
I
CC
I
CCA
NOTE 1: Typical values of all parameters except for V
Input offset voltageCH1, 3,Av = 115mV
p
p
Open-loop voltage amplificationRFB = 200 kΩ60dB
Unity-gain bandwidth1MHz
p
Output sink currentVID = 0.1 V, VO = 0.2 V0.21mA
Output source currentVID = 0.1 V, VO = 1.2 V–60–100µA
p
REF(dev)
PARAMETERTEST CONDITIONSMINTYPMAXUNIT
p
p
Rise timeCL = 1000 pF130ns
Fall timeIO = 1000 pF50ns
REF(dev)
PARAMETERTEST CONDITIONSMINTYPMAXUNIT
Supply currentOutput OFF state2.54mA
Average supply currentF
REF(dev)
CH1, 3,VI = –.95 V to 1.55 V±10±20
CH2,VI = 0.4 V to 1 V±10±20
CH1, 3,0.951.55
CH20.41
= 0.1
ID
CH2,AV = 1, TA = 25°C678700722
CH2,AV = 1665700735
and fdT are specified at TA = 25°C.
and fdT are specified at TA = 25°C.
= 500 kHz, Duty = 50%, No load3.55mA
OSC
and fdT are specified at TA = 25°C.
IO = 60 µA1.2
IO = 0.2 mA0.2
IO = 20 mA (CH2)2.93.05
IO = –40 mA (CH1, 3)1.92.22.6
IO = 20 mA (CH1, 3)0.20.4
IO = 40 mA (CH2)0.20.30.6
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS5100
TRIPLE-CHANNEL PWM CONTROL CIRCUITS
SLVS169 – JANUARY 2000
TYPICAL CHARACTERISTICS
REFERENCE VOLTAGE
vs
FREE-AIR TEMPERATURE
1.27
VCC = 3.3 V
IO = –1 mA
1.26
1.25
1.24
– Reference Voltage – V
ref
V
1.23
1.22
–500100150
TA – Free-Air Temperature – °C
50
Figure 1
SUPPLY CURRENT
vs
FREE-AIR TEMPERATURE
5
VCC = 3.3 V
INPUT THRESHOLD VOLTAGE (UVLO)
vs
FREE-AIR TEMPERATURE
2.5
VCC = 3.3 V
2.4
2.3
2.2
2.1
– Input Threshold Voltage (UVLO) – V
IT
V
2
–500100150
TA – Free-Air Temperature – °C
50
Figure 2
SOURCE CURRENT
vs
FREE-AIR TEMPERATURE
–1.8
VCC = 3.3 V
4
I
CC
3
I
CCA
2
– Supply Current – mA
CC
I
1
0
–500100150
TA – Free-Air Temperature – °C
50
Figure 3
–2
Aµ
–2.2
S
I – Source Current –
–2.4
–2.6
–500100150
TA – Free-Air Temperature – °C
50
Figure 4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
5
TPS5100
TRIPLE-CHANNEL PWM CONTROL CIRCUITS
SLVS169 – JANUARY 2000
TYPICAL CHARACTERISTICS
OSCILLATOR FREQUENCY
vs
TIMING CAPACITOR
10k
VCC = 3.3 V
RT = 6.8 kΩ
TA = 25°C
1k
100
– Oscillator Frequency – kHz
OSC
f
10
1010010000
CT – Timing Capacitor – pF
1000
Figure 5
–190
VCC = 3.3 V
505
500
495
490
– Oscillator Frequency – kHz
485
OSC
f
480
–500100150
SOURCE CURRENT
vs
FREE-AIR TEMPERATURE
OSCILLATOR FREQUENCY
vs
FREE-AIR TEMPERATURE
VCC = 3.3 V
RT = 6.8 kΩ
CT = 130 pF
50
TA – Free-Air Temperature – °C
Figure 6
–195
Aµ
ICT/I
RT
–200
S
I – Source Current –
–205
–210
–500100150
TA – Free-Air Temperature – °C
50
Figure 7
6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS5100
TRIPLE-CHANNEL PWM CONTROL CIRCUITS
SLVS169 – JANUARY 2000
7
TPS5100
TRIPLE-CHANNEL PWM CONTROL CIRCUITS
SLVS169 – JANUARY 2000
TYPICAL CHARACTERISTICS
MAXIMUM PEAK OUTPUT VOLTAGE
vs
OUTPUT SOURCE CURRENT
3
VCC = 3.3 V
TA = 25°C
2
1
– Maximum Peak Output Voltage – V
OM
V
0
–500100150
IOM – Output Source Current – µA
50
Figure 12
OUTPUT VOLTAGE
vs
OUTPUT CURRENT
200
VCC = 3.3 V
TA = 25°C
OUTPUT VOLTAGE
vs
SUPPLY VOLTAGE
8
IO = 60 µA
TA = 25°C
6
4
– Output Voltage – V
O
V
2
0
0268
VCC – Supply Voltage – V
4
Figure 13
REFERENCE VOLTAGE
vs
SUPPLY VOLTAGE
1.4
TA = 25°C
1.2
150
100
– Output Voltage – mV
O
V
50
0
00.51.52
IO – Output Current – mA
1
Figure 14
8
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
1
0.8
0.6
0.4
– PWM Reference Voltage – V
ref
V
0.2
0
Fall
Rise
0.51.5
12 30
VCC – Supply Voltage – V
Figure 15
2.5
TPS5100
TRIPLE-CHANNEL PWM CONTROL CIRCUITS
SLVS169 – JANUARY 2000
TYPICAL CHARACTERISTICS
80
60
40
20
0
Open-Loop Gain – dB
–20
–40
0.01
0.110
OPEN-LOOP GAIN
vs
FREQUENCY
VCC = 3.3 V
TA = 25°C
Rf = 390 kΩ
11001000
f – Frequency – kHz
Figure 16
10k
0
–45
–90
–135
Phase Shift – degrees
–180
–225
0.01
0.110
PHASE SHIFT
vs
FREQUENCY
VCC = 3.3 V
Inv-Amp
Rf = 390 kΩ
TA = 25°C
11001000
f – Frequency – kHz
Figure 17
10k
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
9
TPS5100
TRIPLE-CHANNEL PWM CONTROL CIRCUITS
SLVS169 – JANUARY 2000
MECHANICAL DATA
PW (R-PDSO-G**) PLASTIC SMALL-OUTLINE PACKAGE
14 PIN SHOWN
0,65
14
1
1,20 MAX
0,30
0,19
8
6,60
4,50
4,30
6,20
7
A
0,15
0,05
M
0,10
Seating Plane
0,10
0,15 NOM
Gage Plane
0,25
0°–8°
0,75
0,50
PINS **
DIM
A MAX
A MIN
NOTES: A. All linear dimensions are in millimeters.
B. This drawing is subject to change without notice.
C. Body dimensions do not include mold flash or protrusion not to exceed 0,15.
D. Falls within JEDEC MO-153
8
3,10
2,90
14
5,10
4,90
16
5,10
20
6,60
6,404,90
24
7,90
7,70
28
9,80
9,60
4040064/E 08/96
10
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
PACKAGE OPTION ADDENDUM
www.ti.com
31-Mar-2008
PACKAGING INFORMATION
Orderable DeviceStatus
(1)
Package
Type
Package
Drawing
Pins Package
Qty
Eco Plan
TPS5100IPWACTIVETSSOPPW1690Green (RoHS &
no Sb/Br)
TPS5100IPWRACTIVETSSOPPW162000 Green (RoHS &
no Sb/Br)
TPS5100IPWRG4ACTIVETSSOPPW162000 Green (RoHS &
no Sb/Br)
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in
a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check
http://www.ti.com/productcontent for the latest availability information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements
for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered
at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and
package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS
compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame
retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)
(2)
Lead/Ball Finish MSL Peak Temp
CU NIPDAULevel-1-260C-UNLIM
CU NIPDAULevel-1-260C-UNLIM
CU NIPDAULevel-1-260C-UNLIM
(3)
(3)
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder
temperature.
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