FAN5626LX【PDF 5/13 页】IC LED DVR 6CH INTERFACE 10-UMLP

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Electrical Specifications

V IN = 2.7 V to 5.5 V, R SET = 19.10 k ? , T A = -40°C to +85°C, V f = 2.5 V to [3.5 V or V IN – 0.1 V], whichever is smaller. Typical

values are at T A = 25°C, V IN = 3.6 V, and V f = 3.2 V.

Symbol

Parameter

Condition

Min.

Typ.

Max.

Unit

Power Supplies

I SD

I IN

I IH

Shutdown Supply Current

Operating Supply Current

Control Pin Input Current

V IN = 3.6 V, CTRL = 0

FAN5622: V IN = 3.6 V, I LED = 0 mA

FAN5624: V IN = 3.6 V, I LED = 0 mA

FAN5626: V IN = 3.6 V, I LED = 0 mA

CTRL = 1.8 V

0.3

0.4

0.6

0.8

1.0

0.8

1.0

1.2

250

μA

V UVLO

Under-Voltage Lockout

Threshold

V IN Rising

V IN Falling

2.10

2.50

2.30

2.70

2.50

Regulation

I FS_LEDx (MAX)

I LED

Full-Scale LED Output Current

Absolute Current Accuracy

I LEDx = 30 mA; x = 1 to 6

V IN =2.85 V – 4.5 V; V CATH =0.15 to

(1.2 V or V IN =2.55 V, Whichever is

Smaller); Full-Scale Current 5-

-10

+10

30 mA, T A = 25°C

I LED MATCH

V ISET

I RATIO

? I OUT_LOAD

? I OUT_LINE

V DROPOUT

TSD

LED Current Matching (4)

I SET Drive Voltage

Current Mirror Ratio from ISET

I OUT Load Regulation

I OUT Line Regulation

Dropout Voltage

Thermal Shutdown

I LEDx = 15 mA; V_LEDx=0.4 V ,

T A = 25°C

9.53 k ? ≤ R SET ≤ 56.2 k ?

V IN = 3.6 V, I LEDx = 15 mA,

LED V F = 2.7 to 3.5 V,

V IN = 2.7 to 4.8 V, I LEDx = 15 mA,

V CATH = 0.5 V

V IN =3.6 V; I LED = 15 mA, -10%

I LED Drop

V IN =3.6 V; I LED = 30 mA, -10%

I LED Drop

Rising Temperature at Junction

Hysteresis

-3

-4

1.20

240

150

°C

Logic Input (CTRL)

V IH

V IL

HIGH-Level Input Voltage

LOW-Level Input Voltage

1.2

0.4

T LO

T HI

T ON

T SD

CTRL LOW Time for Dimming

Time Delay between Steps

CTRL HIGH to Turn-On Delay

CTRL LOW, Shutdown Pulse

Width

V IN = 3.6 V; See Figure 17

V IN = 3.6 V; from Falling Edge of

CTRL

0.5

250

300

μs

Note:

4. For the two, four, and six LED current sinks of FAN5622, FAN5624, and FAN5626 respectively; the following are

determined: the maximum sink current of the two, four, and six LED outputs (MAX); the minimum sink current of the two,

four, and six outputs (MIN); and the average sink current (AVG). For all of the LED outputs, two matching numbers are

calculated: (MAX-AVG)/ AVG and (AVG-MIN)/AVG. The largest number of the two (worst case) is considered the

matching figure for the part. The matching figure for a given part is considered to be the highest matching figure of all LED

outputs. The typical specification provided is the most likely norm of the matching figure for all parts.

? 2010 Fairchild Semiconductor Corporation

FAN5622 / FAN5624 / FAN5626 ? Rev. 1.0.3

www.fairchildsemi.com

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