TLE4309 datasheet(6/12 Pages) INFINEON

номер детали	TLE4309

подробное описание детали	Adjustable Linear Low Dropout LED Driver

PDF	12 Pages

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производитель	INFINEON [Infineon Technologies AG]

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Datasheet

Rev. 1.0, 2007-03-20

TLE4309

Table 5

Electrical Characteristics

I = 13.5 V; VPWM ≥ VPWM,H; -25 °C < Tj < 125 °C;

all voltages with respect to ground; unless otherwise specified

Parameter

Symbol

Limit Values

Unit Test Condition

Min.

Typ.

Max.

Output

Output current

171

178

185

(

Q-VREF)

1) = 6.6 V;

REF = 1.0 Ω

438

456

474

(

Q-VREF)

1) = 6.6 V;

REF = 0.39 Ω

Output current limit

Qmax

–600

–mA

REF = 0 Ω

Dropout voltage

–

0.35

0.7

Q = 300 mA

Reference

Reference Voltage

REF

172

178

184

0.39 <

REF < 1.0 Ω

j = 25 °C

Reference Voltage

REF

171

178

185

0.39 <

REF < 1.0 Ω

Reference Input

Current

REF

-1

0.1

µA

REF = 180 mV

Current Consumption

Current consumption

off mode

q,OFF

–0.1

2µA

PWM/EN = L,

j < 85 °C

Current consumption

–

1222mA

Q =6.6 V; RREF =0.47 Ω

PWM / ENABLE

PWM high level valid

PWM,H

2.6

––V

–

PWM low level valid

PWM,L

––0.7

–

PWM input current

high level

PWM,H

–220

500

µA

PWM = 5.0 V

PWM input current

low level

PWM,L

-1

–1µA

PWM = 0.0 V

Turn on delay time

PWM,ON

1540µs

70% of

Qnom

Turn off delay time

PWM,OFF

1540µs

30% of

Qnom

1) (V

Q - VREF) equals the forward voltage sum of the connected LEDs, see figure 1.

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