STLED25JR datasheet(8/30 Pages) STMICROELECTRONICS

8 / 30 page

Electrical characteristics

STLED25

8/30

Doc ID 022323 Rev 3

Electrical characteristics

- 30 °C < TA < 85 °C, VIN = 3.7 V; VOUT = 7.5 V, EN13 = EN45 = VIN, typical values are at

TA = 25 °C, unless otherwise specified.

Table 6.

Electrical characteristics

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

General section

VIN

Operating input voltage

2.3

3.7

5.5

Shutdown mode

EN13 = EN45 = 0

0.5

µA

VUVLO

Undervoltage lockout

threshold

VIN rising

1.9

2.0

VIN falling

1.7

1.8

fSW

Switching frequency

2.25

2.5

2.75

MHz

IOUT

Continuous output current (1)

VIN = 2.5 V, VOUT = 6.2 V

125

IPK

Inductor peak current

550

650

Application efficiency (1)

(VIN = 3.7 V; VOUT = 6.2 V;

see application schematic)

IOUT = 50 mA

IOUT = 75 mA

IOUT = 100 mA

DC-DC

DC-DC converter efficiency

IOUT = 100 mA

VOVP

Overvoltage protection

8.8

9.05

9.3

OVPHYST

Overvoltage protection

hysteresis

250

TSHDN

Thermal shutdown

150

°C

Hysteresis

°C

LEDs current

ID1-D5

Current matching

-5.5

+5.5

VSCP

Short-circuit protection on

LEDs

Measured on the Dx pins

1.28

ILED

Absolute channel accuracy

5 mA < ILED < 25 mA,

VIN = 2.5 V to 5.5 V

-7.5

+7.5

2.5 mA < ILED < 5 mA,

VIN = 2.5 V to 5.5 V

-10

ISET

Voltage reference

RSET = 200 k to 15 k

1.28

Current mirror

ILED / ISET

390

A/A

VCSH

Current source headroom

voltage

135

STLED25JR 数据表(PDF) 8 Page - STMicroelectronics

STLED25JR 数据表(HTML) 8 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

数据表下载

链接网址

STLED25JR 数据表(PDF) 8 Page - STMicroelectronics

STLED25JR 数据表(HTML) 8 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

数据表 下载

链接网址

数据表下载