LED1642GWTTR datasheet(9/42 Pages) STMICROELECTRONICS

Part #	LED1642GWTTR

Description	16 channel LED driver with error detection current gain control

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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DocID024395 Rev 6

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LED1642GW

Electrical characteristics

42

∆I

OL1

Output current precision

channel-to-channel

(all outputs ON)(1)(2)

VOUT = 0.1 V; (IOUT = 3 mA)

REXT = 11 kΩ

CFG-0…CFG-5= “000000”

CFG-6 = “0”

--

±4

%

∆I

OL2

VOUT = 0.5 V; (IOUT = 20 mA)

REXT = 11 kΩ

CFG-0…CFG-5 = “011010”

CFG-6 = “1”

--

±3

∆I

OL3

VOUT = 0.8 V; (IOUT = 36 mA)

REXT = 11 kΩ

CFG-0…CFG-5 = “111111”

CFG-6 = “1”

--

±3

∆I

OL2a

Output current precision

device-to-device

(all outputs ON)(1)

VOUT = 0.5 V; (IOUT = 20 mA)

REXT=1 1 kΩ

CFG-0…CFG-5 = “011010”

CFG-6 = “1”

--

±6

%

%/dVOUT

Output current vs. output

voltage regulation (3)

VOUT from 1 V to 3 V; (IOUT =

36 mA) REXT = 11 kΩ

CFG-0…CFG-5 = “111111”

CFG-6 = “1”

-±0.1

-

%/V

%/dVDD

Output current vs. supply

voltage regulation(4)

VDD from 3 V to 5.5 V

VOUT = 0.8 V; (IOUT = 36 mA)

REXT = 11 kΩ

CFG-0…CFG-5 = “111111”

CFG-6 = “1”

-±1

-

Rup

Pull-up resistor for PWCLK

400

500

600

K

Ω

Rdw

Pull-down resistor for LE pin

400

500

600

REXT

External current setup

resistance

100

IDD(OFF1)

Supply current (OFF)

REXT = 11 kΩ

OUT 0 to 15 = OFF

CFG = default

--

6

mA

IDD(ON1)

Supply current (ON)

REXT = 11 kΩ; IOUT = 20 mA

OUT 0 to 15 = ON

CFG-0…CFG-5 = “011010”

CFG-6 = “1”

-8

IDD(ON2)

REXT = 11 kΩ; IOUT = 36 mA

OUT 0 to 15 = ON

CFG-0…CFG-5 = “111111”

CFG-6 = “1”

-10

Table 4. Electrical characteristics (continued)

Symbol

Parameter

Conditions

Min.

Typ.

Max.

Unit

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