STOD13ATPUR datasheet(8/24 Pages) STMICROELECTRONICS

Part #	STOD13ATPUR

Description	250 mA dual DC-DC converter for powering AMOLED displays

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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Electrical characteristics

STOD13A

8/24

Doc ID 022599 Rev 1

4

Electrical characteristics

TJ = 25 °C, VINA = VINP = 3.7 V, IMID,O2 = 30 mA, CIN = 2 x 10 µF, CMID, = 10 µF,

CO2 = 2 x 10 µF, CREF = 1 µF, L1 = L2 = 4.7 µH, VEN = 2 V, VMID = 4.6 V, VO2= -4.9 V unless

otherwise specified.

Table 6.

Electrical characteristics

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

General section

VINA, VINP

Supply input voltage

2.5

3.7

4.5

V

UVLO_H

Undervoltage lockout HIGH

VINA rising

2.22

2.25

V

UVLO_L

Undervoltage lockout LOW

VINA Falling

1.9

2.18

V

I_VI

Input current

No load condition

1.7

2.1

mA

IQ_SH

Shutdown current

VEN=GND; TJ=-40°C to +85°C

1

µA

VEN H

Enable high threshold

VINA=2.5V to 4.5V,

TJ=-40°C to +85°C

1.2

V

VEN L

Enable low threshold

0.4

IEN

Enable input current

VEN=VINA=4.5V;

TJ=-40°C to +85°C

1µA

VFD H

Fast discharge high threshold

VINA=2.5V to 4.5V,

TJ=-40°C to +85°C

1.2

V

VFD L

Fast discharge low threshold

0.4

fs

Switching frequency

PWM mode

1.35

1.5

1.65

MHz

D1MAX

Step-up maximum duty cycle

No load

87

%

D2MAX

Inverting maximum duty cycle

No load

87

%

Total system efficiency

IMID,O2=10 to 30mA,

VMID=4.6V, VO2=-4.9V

78

%

IMID,O2=30 to 150mA, VMID=4.6V,

VO2=-4.9V

85

IMID,O2=150 to 250mA,

VMID=4.6V, VO2=-4.9V

82

VREF

Reference voltage

IREF=10µA

1.208

1.220

1.232

V

IREF

Reference current capability

At 98.5% of no load

reference voltage

100

µA

Step-up converter section

VMID

Positive output voltage

4.6

V

Positive output voltage total

variation

VINA=VINP=2.9V to 4.5V;

IMID=5mA to 250mA, IO2 no load

TJ = -40°C to +85°C

-0.8

0.8

%

ΔV

MID LT

Line transient

VINA,P=3.4V to 2.9V, IMID=100mA;

TR=TF=10µs

-10

mV

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