Texas Instruments TPS63700DRC Schematic [ru]
COMPGND
VIN
EN
IN
VREF
FB
OUT
PS_GND
SW
PowerPAD
C4
VIN
VOUT
C2
R2
R3
D1
L1 C5
C6
TPS63700
R1
C1
0.22 mF
22 mF
4.7 mH
0.1 mF
10 mF
2.7 V To 5.5 V
4.7 nF
−5 V
TPS63700
www.ti.com
1
FEATURES
2
• Adjustable Output Voltage Down to – 15 V
• 2.7-V to 5.5-V Input Voltage Range
• Up to 360-mA Output Current
• 1000-mA Typical Switch Current Limit
• Up to 84% Efficiency
• Typical 1.4-MHz Fixed-Frequency PWM
Operation
• Thermal Shutdown
• Typical – 19 V Output Overvoltage Protection
• 1.5- µ A Shutdown Current
• Small 3-mm × 3-mm SON-10 Package (DRC)
APPLICATIONS
• Generic Negative Voltage Supply
• Small-to-Medium Size OLED Displays
• PDAs, Pocket PCs, Smartphones
• Bias Supply
SLVS530B – SEPTEMBER 2005 – REVISED NOVEMBER 2007
DC-DC INVERTER
DESCRIPTION
The TPS63700 is an inverting dc-dc converter
generating a negative output voltage down to – 15 V
with output currents up to 360-mA, depending on
input-voltage to output-voltage ratio. With a total
efficiency up to 84%, the device is ideal for portable
battery-powered equipment. The input voltage range
of 2.7-V to 5.5-V allows the TPS63700 to be directly
powered from a Li-ion battery, from 3-cell NiMH/NiCd,
from a 3.3-V or 5-V supply rail. The TPS63700 comes
in a small 3-mm × 3-mm SON-10 package.
Furthermore, the high switching frequency of typically
1.4 MHz allows the use of small external
components. This, and the small package make a
small power supply solution possible.
The inverter operates with a fixed-frequency PWM
control topology. The device has an internal current
limit, overvoltage protection, and a thermal shutdown
for highest reliability under fault conditions.
1
2 PowerPAD is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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.
Copyright © 2005 – 2007, Texas Instruments Incorporated
www.ti.com
TPS63700
SLVS530B – SEPTEMBER 2005 – REVISED NOVEMBER 2007
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
ORDERING INFORMATION
T
A
SWITCH CURRENT LIMIT PACKAGE TYPE SYMBOL PART NUMBER
(1)
(2)
– 40 ° C to 85 ° C 1000 mA SON-10 NUB TPS63700DRC
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
Web site at www.ti.com.
(2) The DRC package is available taped and reeled. Add an R suffix to the device type (i.e., TPS63700DRCR) to order quantities of 3000
devices per reel. Add a T suffix to the device type (i.e., TPS63700DRCT) to order quantities of 250 devices peer reel.
ABSOLUTE MAXIMUM RATINGS
over operating free-air temperature range unless otherwise noted
Input voltage range at VIN
Input voltage range at IN
Minimum voltage at VOUT
Voltage at EN, FB, COMP, PS
Differential voltage between OUT to V
Operating virtual junction temperature, T
Storage temperature range, T
(1) Stresses beyond those listed under "absolute maximum ratings ” may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating
conditions ” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) All voltage values are with respect to network ground terminal, unless otherwise noted.
(2)
(2)
(2)
(2)
(2)
IN
J
STG
(1)
TPS63700
– 0.3 V to +6.0 V
VIN
– 18 V
– 0.3 V to VIN+ 0.3 V
24 V
– 40 ° C to 150 ° C
– 65 ° C to 150 ° C
PACKAGE
POWER RATING ABOVE TA= 25 ° C POWER RATING POWER RATING
DRC 2053 mW 21 mW/ ° C 1130 mW 821 mW
(1) The thermal resistance junction to ambient of the 10-pin DRC is Θ
maximum junction temperature forces the device into thermal shutdown.
RECOMMENDED OPERATING CONDITIONS
Input voltage range, V
Operating free-air temperature range, T
Operating virtual junction temperature range, T
I
A
DISSIPATION RATINGS TABLE
(1)
TA≤ 25 ° C DERATING FACTOR TA= 70 ° C TA= 85 ° C
= 48.7 ° C/W. Exceeding the
JA
MIN NOM MAX UNIT
2.7 5.5 V
– 40 85 ° C
J
– 40 125 ° C
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Product Folder Link(s): TPS63700
www.ti.com
TPS63700
SLVS530B – SEPTEMBER 2005 – REVISED NOVEMBER 2007
ELECTRICAL CHARACTERISTICS
– 40 ° C to 85 ° C, over recommended input voltage range, typical at an ambient temperature of 25 ° C (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
DC-DC STAGE
V
OUT
V
IN
V
REF
I
FB
V
FB
V
OUT
V
OVP
R
DS(ON)
I
LIM
D
MAX
D
MIN
CONTROL STAGE
f
S
V
EN
V
EN
I
EN
I
(Q)
I
SD
UVLO 2.1 2.35 2.7 V
Adjustable output
voltage range
– 15 – 2 V
Input voltage range PIN VIN, IN 2.7 5.5 V
Reference voltage I
Negative feedback input bias
current
Negative feedback
regulation voltage
= 10 µ A 1.2 1.213 1.225 V
REF
V
= 0.1 V
FBN
REF
2 nA
VIN= 2.7 V to 5.5 V – 0.024 0 0.024 V
DC output accuracy PWM mode, device switching, ± 3 %
Output overvoltage
protection
Inverter switch on-resistance m Ω
VIN= 3.6 V 440 600
VIN= 5 V 370 500
– 19 V
Inverter switch current limit 2.7 V < VIN< 5.5 V 860 1000 1140 mA
Maximum duty cycle
inverting converter
Minimum duty cycle
inverting converter
87.5%
12.5%
Oscillator frequency 1250 1380 1500 kHz
High level input voltage 1.4 V
Low level input voltage 0.4 V
Input current EN = VINor GND 0.01 0.1 µ A
Quiescent
current
VIN VIN= 3.6 V, I
IN 640 750 µ A
EN = VIN, no switching
V
OUT
= – 5 V
= 0, 330 400 µ A
OUT
Shutdown supply current EN = GND 0.2 1.5 µ A
Undervoltage lockout
threshold
Thermal shutdown 150 ° C
Thermal shutdown
hysteresis
Junction temperature decreasing 5 ° C
Copyright © 2005 – 2007, Texas Instruments Incorporated Submit Documentation Feedback 3
Product Folder Link(s): TPS63700
www.ti.com
COMP 1
GND 2
VIN 3
EN 4
IN 5 SW6
PS_GND7
OUT8
FB9
VREF10
PowerPAD
TPS63700
SLVS530B – SEPTEMBER 2005 – REVISED NOVEMBER 2007
PIN ASSIGNMENTS
DRC PACKAGE PowerPAD™
(TOP VIEW)
Terminal Functions
TERMINAL
NAME NO.
COMP 1 I/O Compensation pin for control, connect a 4.7nF capacitor between this pin and GND
EN 4 I Enable pin (EN=GND: disabled; EN=VIN: enabled)
FB 9 I Feedback pin for the voltage divider
GND 2 Ground pin
IN 5 I supply voltage for the power switch
OUT 8 I Output voltage sense input
PS_GND 7 I Connect to GND for control logic
SW 6 O Inverter switch output
VIN 3 I supply voltage input for control logic, connect a RC circuit of 10R and 100nF to filter this supply voltage
VREF 10 O Reference voltage output. Connect a 220-nF capacitor to ground. Connect the lower resistor of the negative
I/O DESCRIPTION
output voltage divider to this pin.
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Product Folder Link(s): TPS63700
www.ti.com
Gate
Control
Control Logic
Oscillator
Temperature
Control
+
−
−
+
VIN
GND
PS_GND
EN
COMP
IN
SW
VREF
FB
OUT
IN
VIN
VIN VIN
FUNCTIONAL BLOCK DIAGRAM
TPS63700
SLVS530B – SEPTEMBER 2005 – REVISED NOVEMBER 2007
Copyright © 2005 – 2007, Texas Instruments Incorporated Submit Documentation Feedback 5
Product Folder Link(s): TPS63700
www.ti.com
COMPGND
VIN
EN
IN
VREF
FB
OUT
PS_GND
SW
PowerPAD
C4
VIN
VOUT, −5 V
C2
R2
R3
C3
R4
D1
L1
C5
C6
TPS63700
C1
SL02/SL03
4x4.7 mF
0.22 mF
10 mF
10 pF
100 kW
4.7 nF
10 W
0.1 mF
TPS63700
SLVS530B – SEPTEMBER 2005 – REVISED NOVEMBER 2007
PARAMETER MEASUREMENT INFORMATION
REFERENCE DESCRIPTION
C1, C2, C3, C4, X7R/X5R ceramic
TYPICAL CHARACTERISTICS
List of Components
C5 4 × 4.7 µ F X7R/X5R ceramic
D1 SL03/SL02 Vishay
– 5V: TDK VLF4012 4R7, TDK
L1
SLF6025-4R7, Coilcraft LPS4018-472,
– 12V: Sumida CDRH5D18 10 µ H
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Product Folder Link(s): TPS63700
www.ti.com
0
10
20
30
40
50
60
70
80
90
0
100 200 300 400
Efficiency %
IO − Output Current − mA
VIN = 3.3 V
VIN = 5 V
VIN = 4.2 V
VIN = 3.6 V
V
OUT
= −5 V
0
50
100
150
200
250
300
350
400
2.5 3 3.5 4 4.5 5 5.5
Maximum Output Current − mA
VI − Input Voltage − V
VO = −5 V
VO = −12 V
VO = −15 V
SLVS530B – SEPTEMBER 2005 – REVISED NOVEMBER 2007
Table of Graphs
GRAPH DESCRIPTION
Figure 1 Maximum output current versus input voltage, V
Figure 2 Efficiency versus output current, V
Figure 3 Efficiency versus output current, V
Figure 4 Efficiency versus output current, V
Figure 5 Efficiency versus input voltage, V
Figure 6 Efficiency versus input voltage, V
Figure 7 Output voltage versus output current, V
Figure 8 Output voltage versus output current, V
= – 5 V
OUT
= – 12 V
OUT
= – 15V
OUT
= – 5 V
OUT
= – 12 V
OUT
OUT
OUT
= – 5 V
= – 12 V
= – 5 V, – 12 V, – 15 V
OUT
Figure 9 Output voltage in discontinuous conduction mode, VIN= 3.6 V, V
Figure 10 Output voltage in continuous conduction mode, VIN= 3.6 V, V
Figure 11 Load transient response, VIN= 3.6 V, V
Figure 12 Line transient response, VIN= 3.6 V to 4.2 V, V
Figure 13 Start-up after enable,V
= 3.6 V, V
I
OUT
= – 5 V, 45 to 150 mA
OUT
= – 5 V
= – 5 V
OUT
PERFORMANCE GRAPHS
TPS63700
= – 5 V
OUT
= – 5 V
OUT
MAXIMUM OUTPUT CURRENT vs
vs OUTPUT CURRENT,
INPUT VOLTAGE VOUT – 5V
Figure 1. Figure 2.
EFFICIENCY
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Product Folder Link(s): TPS63700
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0
10
20
30
40
50
60
70
80
90
0 20 40 60 80 100 120 140 160 180 200
Efficiency %
IO − Output Current − mA
VIN = 5 V
V
OUT
= −15 V
VIN = 4.2 V
VIN = 3.3 V
0
10
20
30
40
50
60
70
80
90
0 50
100 150
200 250
VIN = 4.2 V
VIN = 5 V
VIN = 3.6 V
VIN = 3.3 V
IO − Output Current − mA
V
OUT
= −12 V
Efficiency %
0
10
20
30
40
50
60
70
80
90
2.5
3
3.5
4
4.5
5
5.5
Efficiency %
VIN − Input Voltage − V
I
OUT
= 150 mA
I
OUT
= 50 mA
I
OUT
= 20 mA
V
OUT
= −12 V
0
10
20
30
40
50
60
70
80
90
2.5
3
3.5
4
4.5
5
5.5
Efficiency %
VIN − Input Voltage − V
I
OUT
= 200 mA
I
OUT
= 50 mA
I
OUT
= 20 mA
V
OUT
= −5 V
TPS63700
SLVS530B – SEPTEMBER 2005 – REVISED NOVEMBER 2007
PERFORMANCE GRAPHS (continued)
EFFICIENCY EFFICIENCY
OUTPUT CURRENT, OUTPUT CURRENT,
vs vs
VOUT – 12 V VOUT – 15 V
EFFICIENCY EFFICIENCY
INPUT VOLTAGE, INPUT VOLTAGE,
VOUT – 5 V VOUT – 12 V
8 Submit Documentation Feedback Copyright © 2005 – 2007, Texas Instruments Incorporated
Figure 3. Figure 4.
vs vs
Figure 5. Figure 6.
Product Folder Link(s): TPS63700
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