SC652

3

Exceeding the above specifications may result in permanent damage to the device or device malfunction. Operation outside of the parameters

specified in the Electrical Characteristics section is not recommended.

NOTES:

(1)

Tested according to JEDEC standard JESD22-A114-B.

(2)

ΔV

F(max)

= 1.0V when V

IN

= 2.9V, higher V

IN

supports higher ΔV

F(max)

(3)

Calculated from package in still air, mounted to 3 x 4.5(in), 4 layer FR4 PCB per JESD51 standards.

Absolute Maximum Ratings

IN, OUT (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +6.0

C1+, C2+ (V) . . . . . . . . . . . . . . . . . . . . . . . -0.3 to (V

OUT

+ 0.3)

Pin Voltage — All Other Pins (V) . . . . . . . . . -0.3 to (V

IN

+ 0.3)

OUT Short Circuit Duration . . . . . . . . . . . . . . . . . Continuous

Unless otherwise noted, T

A

= +25°C for Typ, -40°C to +85°C for Min and Max, T

J(MAX)

= 125°C, V

IN

= 3.7V, C

IN

= C

OUT

= C

1

= C

2

= 2.2μF, (ESR = 0.03Ω),

500μA < I

FS_BL

< 25mA, Duty Cycle of PWM = 100%, All 5 LEDs connected and enabled.

Parameter

Symbol

Conditions

Min

Typ

Max

Units

Shutdown Current

I

Q(OFF)

T

A

= 25°C

0.1

2

μA

Quiescent Current

I

Q

Charge pump in 1x mode, 2.9V < V

IN

< 4.2V, 5 LEDs

enabled

1.5

mA

Charge pump in 1.5x mode, 2.9V < V

IN

< 4.2V, 5 LEDs

enabled

2

Charge pump in 2x mode, 2.9V < V

IN

< 4.2V, 5 LEDs

enabled

2.5

Maximum Total Output Current

I

OUT(MAX)

V

IN

> 3.0V, sum of all active LED currents,

V

OUT(MAX)

= 4.2V

125

mA

I

FS_BL

PWM duty cycle = 100%, 200kΩ ≥ R

ISET

≥ 4kΩ

0.5

25

mA

Current Gain

I

GAIN

Gain from I

ISET

to I

FS_BL

100

A/A

Current Set Voltage

V

IN - ISET

Voltage across R

ISET

1V

I

BL-BL

I

FS_BL

= 12mA, Duty = 100%

-3.5

±0.5

+3.5

%

Backlight Current Accuracy

I

BL_ACC

I

FS_BL

= 12mA, Duty = 100%

±1.5

%

PWM Input Frequency

f

EN/PWM

Guaranteed by design

0.2

50

kHz

EN/PWM Minimum High Time

t

HIGH_MIN

(3)

1μs

Electrical Characteristics

Recommended Operating Conditions

Ambient Temperature Range (°C). . . . . . . . . . -40 ≤ T

A

≤ +85

Input Voltage (V) . . . . . . . . . . . . . . . . . . . . . . . . . . 2.9 to 5.5

Output Voltage (V) . . . . . . . . . . . . . . . . . . . . . . . . 2.5 to 5.25

Voltage Difference between any two LEDs (V) . . . ΔV

F

Thermal Information

Maximum Junction Temperature (°C) . . . . . . . . . . . . . . +150

Storage Temperature Range (°C). . . . . . . . . . . . -65 to +150

Peak IR Reflow Temperature (10s to 30s) (°C) . . . . . . +260