Texas Instruments UCC39413PWTR, UCC39413PW, UCC39413N, UCC39413DTR, UCC39413D Datasheet

UCC19411/2/3
UCC29411/2/3
UCC39411/2/3

PRELIMINARY

DESCRIPTION

The UCC39411 family of low input voltage, single inductor boost
converters is optimized to operate from a single or dual alkaline cell, and
steps up to a 3.3V, 5V, or adjustable output at 200mW. The UCC39411
family also provides an auxiliary 7V output, primarily for the gate drive
supply, which can be used for applications requiring an auxiliary output,
such as 5V, by linear regulating. The primary output will start up under full
load at input voltages typically as low as 0.8V with a guaranteed max of
1V, and will operate down to 0.5V once the converter is operating,
maximizing battery utilization.

The UCC39411 family is designed to accommodate demanding
applications such as pagers and cell phones that require high efficiency
over a wide operating range of several milli-watts to a couple of hundred
milli-watts. High efficiency at low output current is achieved by optimizing
switching and conduction losses with a low total quiescent current (50µA).
At higher output current the 0.5Ω switch, and 1.2Ω synchronous rectifier
along with continuous mode conduction provide high power efficiency. The
wide input voltage range of the UCC39411 family can accommodate other
power sources such as NiCd and NimH.

The 39411 family also provides shutdown control. Packages available are
the 8 pin SOIC (D), 8 pin DIP (N or J), and 8 pin TSSOP (PW) to optimize
board space.

Low Power Synchronous Boost Converter

FEATURES

•

1V Input Voltage Operation Start-up
Guaranteed under FULL Load on
Main Output, and Operation Down to

0.5V

•

200mW Output Power at Battery
Voltages as low as 0.8V

•

Secondary 7V Supply from a Single
Inductor

•

Output Fully Disconnected in
Shutdown

•

Adaptive Current Mode Control for
Optimum Efficiency

•

High Efficiency over Wide Operating
Range

• 6µA Shutdown Supply Current

• Output Reset Function with

Programmable Reset Period

SLUS245A - MARCH 1999

1

4

7

6

VOUT

GND

3.3V 200mW

5

C

T

R

RES

3

100µF

RESET CONTROL CIRCUIT

GLITCH SUPRESSION
PROGRAMMABLE TIMING

MODULATOR CONTROL CIRCUIT

SYNCHRONOUS RECTIFICATION CIRCUITRY
ANTI-CROSS CONDUCTION
START-UP
MULTIPLEXING LOGIC
MAX INPUT POWER CONTROL
ADAPTIVE CURRENT CONTROL

START-UP

CIRCUITRY

1.2Ω

CT

RESB

2SD/FB

100µF

VIN

SW

8

VGD

0.5Ω

100µF

1V TO 3.5V

22µH

+

SIMPIFIED BLOCK DIAGRAM AND APPLICATION CIRCUIT (UCC39412)

UDG-98067

Note: Pinout shown is for the TSSOP Package. Consult Package Descriptions for DIP and SOIC configurations.

application

INFO

available

2

UCC19411/2/3
UCC29411/2/3
UCC39411/2/3

DIL-8, SOIC-8 (TOP VIEW)
N or J Package, D Package

ABSOLUTE MAXIMUM RATINGS

VIN Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3V to 10V

SD Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3V to V

IN

VGD Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3V to 14V

SW Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3V to 15V

Currents are positive into, negative out of the specific terminal.
Consult Packaging Section of the Databook for thermal limita

-

tions and considerations of packages.

CT

GND

SW

RESB

1

2

3

4

8

7

6

5

VGD

VOUT

VIN

SD/FB

CONNECTION DIAGRAMS

ELECTRICAL CHARACTERISTICS:

TJ= 0°C to +70°C for the UCC39411/2/3, TJ= –40°C to +85°C for the

UCC29411/2/3, T

J

= –55C to +125°C for the UCC19411/2/3, VIN= 1.25V for UCC39411/2, VIN= 2.5V for the UCC39413, TA=TJ.

UCC39411
UCC39412
UCC39413

UCC19411/2/3
UCC29411/2/3

PARAMETER TEST CONDITIONS MIN TYP MAX MIN TYP MAX UNITS

VIN Section

Minimum Start-up Voltage No External VGD Load, T

J

=25°C,

I

OUT

=60mA (Note 1)

0.8 1 .08 1 V

No External VGD Load, I

OUT

=60mA

(Note 1)

0.9 1.1 1.2 1.4 V

Minimum Dropout Voltage No External VGD Load, I

OUT

=10mA

(Note 1)

0.5 0.7 V

Input Voltage Range 1.1 3.2 1.3 3.2 V

Quiescent Supply Current (Note 2) 6 12 8 16

µA

Supply Current at Shutdown SD = GND 6 12 8 16

µA

SW

VOUT

VGD

GND

1

2

3

4

8

7

6

5

SD/FB

VIN

RESB

CT

TSSOP-8 (TOP VIEW)
PW Package

3

UCC19411/2/3
UCC29411/2/3
UCC39411/2/3

ELECTRICAL CHARACTERISTICS:

TJ= 0°C to +70°C for the UCC39411/2/3, TJ= –40°C to +85°C for the

UCC29411/2/3, T

J

= –55C to +125°C for the UCC19411/2/3, VIN= 1.25V for UCC39411/2, VIN= 2.5V for the UCC39413, TA=TJ.

UCC39411
UCC39412
UCC39413

UCC19411/2/3
UCC29411/2/3

PARAMETER TEST CONDITIONS MIN TYP MAX MIN TYP MAX UNITS

Output Section

Quiescent Supply Current (Note 2) 15 28 20 37

µA

Supply Current at Shutdown SD = GND 3 6 5 10

µA

Regulation Voltage (UCC39412) 1V < V

IN

< 3V 3.2 3.3 3.39 3.15 3.3 3.45 V

1V < V

IN

< 3V, 0mA<I

OUT

<60mA

(Note 1)

3.17 3.3 3.43 3.11 3.3 3.5 V

Regulation Voltage (UCC39413) 1V < V

IN

< 5V 4.85 5 5.15 4.78 5 5.23 V

1V < V

IN

< 5V, 0mA<I

OUT

<60mA

(Note 1)

4.8 5 5.2 4.71 5 5.3 V

ADJ Voltage (UCC39411) 1V < V

IN

< 3V 1.212 1.25 1.288 1.194 1.25 1.306 V

VGD Output Section

Quiescent Supply Current (Note 2) 20 40 27 55

µA

Supply Current at Shutdown SD = GND 20 40 27 55

µA

Regulation Voltage
(UCC39411/2)

1V < V

IN

< 3V 6.3 7 7.7 6.3 7 7.7 V

1V < V

IN

< 3V, 0mA<I

OUT

<10mA

(Note 1)

6.3 7 7.7 6.3 7 7.7 V

Regulation Voltage (UCC39413) 1V < V

IN

< 5V 7.7 8.5 9.3 7.7 8.5 9.3 V

1V < V

IN

< 5V, 0mA<I

OUT

<10mA

(Note 1)

7.7 8.5 9.3 7.7 8.5 9.3 V

Inductor Charging Section (L=22

µH)

Peak Discontinuous Current Operating Range, L=22.1µH 180 250 300 180 250 300 mA

Peak Continuous Current 385 550 715 385 550 715 mA

Charge Switch RDS

ON

D Package 0.5 0.75 0.6 0.85 Ω

Current Limit Delay (Note 1) 50 50 ns

Synchronous Rectifier Section

Rectifier RDS

ON

D Package 1.2 1.8 1.4 2.16 Ω

Shutdown Section

Threshold 0.4 0.6 0.8 0.2 0.6 0.9 V

Input Bias Current SD = GND 2 5 15 2 5 15

µA

SD = 1.25V 5 20 20 100 nA

Reset Section

Threshold (UCC39411) 1.08 1.125 1.17 1.07 1.125 1.18 V

Threshold (UCC39412) 2.85 2.97 3.09 2.83 2.97 3.11 V

Threshold (UCC39413) 4.32 4.5 4.68 4.3 4.5 4.7 V

Reset Period C

T

= 0.15µF 113 188 263 94 188 282 ms

V

OUT

to Reset Delay V

OUT

Falling at –1mV/µs (Note 1) 60 60 µs

Sink Current 1 20 1 20 mA

Output Low Voltage I

OUT

= 500µA 0.1 0.1 V

Output Leakage 0.5 0.5

µA

Note 1 : Guaranteed by design and alternate test methods. Not 100% tested in production.
Note 2: For the UCC39411 FB=1.306V, VGD=7.7V, For the UCC39412 V

OUT

=3.5V and VGD=7.7V, For the UCC39413

V

OUT

=5.3V, VGD=9.3V.