LED1642GW datasheet(12/42 Pages) STMICROELECTRONICS

12 / 42 page

Switching characteristics

LED1642GW

12/42

DocID024395 Rev 6

Switching characteristics

VDD = 3.3 V, Tj = 25 °C, unless otherwise specified.

Table 5. Switching characteristics(1)

Symbol

Parameter

Conditions

Min.

Typ.

Max.

Unit

fclk

Clock frequency

Cascade operation

MHz

fpwclk

PWclock frequency

tr(SDO)

SDO rise time

REXT= 11 kΩ; IOUT = 20 mA

VOUT = 0.8 V

VIH = VDD; VIL = GND

RL = 3.3 K

Ω; CL = 10 pF

CFG-0…CFG-5 = “011010”

CFG-6 = “1”

-5

tf(SDO)

SDO fall time

tPLHLE

LE - OUTn(2)

Propagation delay

time

(“L to “H”)

REXT = 11 kΩ; IOUT = 20 mA

VOUT = 0.8 V

VIH = VDD; VIL = GND

RL = 50 Ω; CL = 10 pF

CFG-0…CFG-5 = “011010”

CFG-6 = “1”

-200

tPLH

CLK - SDO

CFG-13 = ‘0’

815

tPHLLE

LE - OUTn(2)

Propagation delay

time

(“H” to “L”)

-100

tPHL

CLK - SDO

CFG-13 = ‘0’

815

tw(CLK)

CLK

Pulse width

tW(PWCLK)

PWCLK

tw(L)

tgr-d

Gradual delay ch-to-ch

tsu(L)

Setup time for LE

th(L)

Hold time for LE

tsu(D)

Setup time for SDI

th(D)

Hold time for SDI

tclkr(3)

Maximum CLK rise time

µs

tclkf(3)

Maximum CLK fall time

Iout-ov

Output current turn-on overshoot

VOUT = 0.6 to 3 V

CL = 10 pF; IOUT = 3 to 36 mA

tn-err

Normal error detection

minimum output ON time

µs

LED1642GW 数据表(PDF) 12 Page - STMicroelectronics

LED1642GW 数据表(HTML) 12 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 31 32 33 34 35 36 37 38 39 40 41 42

数据表下载