TL2843B-Q1 Datasheet, PDF (3/16 Pages) Texas Instruments – HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLER

TL2843B-Q1
www.ti.com
SLVSAE2A – JULY 2010 – REVISED FEBRUARY 2012
ABSOLUTE MAXIMUM RATINGS^{(1) (2)}
over operating free-air temperature range (unless otherwise noted)
MIN
MAX UNIT
V_CC
Supply voltage
Low impedance source
I_CC < 30 mA
30
Self
V
limiting
V_I
I_CC
I_O
I_O(sink)
θ_JA
Analog input voltage range
Supply current
Output current
Error amplifier output sink current
Package thermal impedance^{(3) (4)}
Output energy
VFB and I_SENSE
D package
Capacitive load
–0.3
6.3 V
30 mA
±1 A
10 mA
97 °C/W
5 μJ
T_J
Virtual junction temperature
T_stg
Storage temperature range
150 °C
–65
150 °C
(1) 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.
(2) All voltages are with respect to the device GND terminal.
(3) Maximum power dissipation is a function of T_J(max), θ_JA, and T_A. The maximum allowable power dissipation at any allowable ambient
temperature is P_D = (T_J(max) – T_A)/θ_JA. Operating at the absolute maximum T_J of 150°C can impact reliability.
(4) The package thermal impedance is calculated in accordance with JESD 51-7.
RECOMMENDED OPERATING CONDITIONS
MIN
V_CC
Supply voltage
V_CC
VC ⁽¹⁾
V_I
Input voltage
V_O
Output voltage
R_T/C_T
VFB and I_SENSE
OUTPUT
POWER GROUND⁽¹⁾
0
0
0
–0.1
I_CC
Supply current, externally limited
I_O
Average output current
I_O(ref)
Reference output current
f_osc
Oscillator frequency
T_A
Operating free-air temperature
–40
(1) The recommended voltages for VC and POWER GROUND apply only to the 14-pin D package.
NOM
100
MAX
30
30
5.5
5.5
30
1
25
200
–20
500
125
UNIT
V
V
V
mA
mA
mA
kHz
°C
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