TLED2043 Datasheet, PDF (3/16 Pages) Texas Instruments – 4-CHANNEL WHITE LED DRIVER

functional block diagram
TLED2043
4-CHANNEL WHITE LED DRIVER
SLDS147C – JUNE 2002 – REVISED NOVEMBER 2002
VIN1
VDD(Internal)
+
D1
_
S1
VOUT1
VIN2
D2
+
_
S2
VOUT2
VIN3
VIN1
+
D3
_
VOUT3
300 KΩ
(TYP)
S3
SW
D4
FB
+
_
IN+
+
IN–
_^AMP1
S4
Current-Control Amplifier
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)^†
Switch input voltage: V_IN1, V_IN2, V_IN3 (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
Switch output current: I_OUT1, I_OUT2, I_OUT3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 mA
Amplifier input voltage, V_I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V_DD
Output FET drain-source voltage, V_DS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
Output FET drain current, I_D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA
Package thermal impedance, θ_JA (see Notes 2 and 3): GQN package . . . . . . . . . . . . . . . . . . . . . . . . . 78°C/W
PW package . . . . . . . . . . . . . . . . . . . . . . . . . . 83°C/W
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C
Storage temperature range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C
† _{Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and}
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. All voltage values are with respect to the network ground terminal.
2. Maximum power dissipation is a function of TJ(max), θ_JA, and TA. The maximum allowable power dissipation at any allowable
ambient temperature is PD = (TJ(max) – TA)/θ_JA. Operating at the absolute maximum TJ of 150°C can affect reliability.
3. The package thermal impedance is calculated in accordance with JESD 51-7.
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