TLED2043 Datasheet, PDF (4/15 Pages) Texas Instruments – 4-CHANNEL WHITE LED DRIVER

TLED2043
4-CHANNEL WHITE LED DRIVER
SLDS147C – JUNE 2002 – REVISED NOVEMBER 2002
recommended operating conditions
VIN1
VIN2
VIN3
VSW
IOUT1
IOUT2
IOUT3
VDS
ID
TA
Switch input voltage
Input voltage for SW pin
Switch output current
FET output drain-source voltage
FET output drain current
Operating free-air temperature
MIN MAX UNIT
2.7 5.5
0 5.5 V
0 5.5
0 5.5 V
3
3 mA
3
5.5 V
50 mA
–40
85 °C
electrical characteristics, T_A = 25°C (unless otherwise noted)
supply voltage switch section
PARAMETER
TEST CONDITIONS
MIN TYP
MAX
VOUT1
VOUT2
VOUT3
VSW
IL
Switch output voltage
High input voltage range for SW OFF
Low input voltage range for SW ON
Low input current for SW
IDD
Input current (see Figure 1)
NOTE 4: VDD = VOUT1
VIN1 = 3.6 V, IOUT = 3 mA
VIN1 = 3.6 V, IOUT = 3 mA
VIN1 = 3.6 V, IOUT = 3 mA
VIN1 = 2.7 V to 5.5 V (see Note 4)
VIN1 = 2.7 V to 5.5 V (see Note 4)
VIN1 = 3.6 V, VSW = 0 V
ON state (VSW = 0 V)
OFF state (VSW = OPEN)
VIN–0.1
VIN–0.1
VIN–0.1
VDD × 0.7
VDD × 0.3
20
100
1
1
amplifier (AMP1) section, V_IN1 = 3.6 V
PARAMETER
TEST CONDITIONS
MIN TYP
MAX
VIO Input offset voltage
VIN1 = 2.7 V to 5.5 V,
VIC = 0.5 × VIN or 100 mV
(see Figure 2)
IIO
IIB
VICR
AVD
B1
VOH
VOL
Input offset current
Input bias current
Common-mode input voltage
Open-loop voltage gain
Unity-gain bandwidth
Output voltage (FB)
Output voltage (FB)
VIN1 = 2.7 V to 5.5 V (see Figure 3)
RL ≥ 100 kΩ (see Figure 4)
RL ≥ 100 kΩ (see Figure 5)
TA = 25°C
TA = Full range
0
70
VDD–1.5
0.3
4
5
8
45
VDD–1.5
630
0.1
UNIT
V
V
µA
mA
µA
UNIT
mV
pA
pA
V
dB
kHz
V
V
constant-current circuit section, AMP + FET
PARAMETER
TEST CONDITIONS
ID(OFF)
ron
VS
Drain off-state current
Drain-source ON resistance
Source voltage
VIN1 = 3.6 V, SW: OFF (VSW = VDD or OPEN), VDS = 5.5 V
VIN1 = 2.7 V, IN+ = 0.1 V, ID = 20 mA (see Figure 6)
VIN1 = 2.7 V to 5.5 V, FB = 200 mV, VD = 0.5 V, RL = 10 Ω
(see Figure 7)
MIN TYP MAX UNIT
25 250 nA
6Ω
194 199 204 mV
4
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