Datasheet

LM5041B
SNVS605 –MAY 2009 www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
Unless otherwise stated the following conditions apply: V
IN
= 48V, V
CC
= 10V, RT = 26.7 kΩ, R
SET
= 20 kΩ.
(1)
. Limits in
standard type are for T
J
= 25°C only; limits in boldface type apply over the Operating Junction Temperature (T
J
) range of -
40°C to +125°C. Minimum and Maximum limits are specified through test, design, or statistical correlation. Typical values
represent the most likely parametric norm at T
J
= 25°C, and are provided for reference purposes only.
Symbol Parameter Conditions Min Typ Max Units
Buck Stage Outputs
Output High level - 5 (V
REF
) - V
Output High Saturation I
OUT
= 10 mA, REF = V
OUT
- 0.5 1 V
Output Low Saturation I
OUT
= −10 mA - 0.5 1 V
Rise Time C
L
= 100 pF - 10 - ns
Fall Time C
L
= 100 pF - 10 - ns
Push-Pull Outputs
R
SET
= 20 kΩ Connected to GND,
Overlap Time 60 90 120 ns
50% to 50% Transitions
R
SET
= 20kΩ Connected to REF,
Dead Time 65 95 125 ns
50% to 50% Transitions
I
OUT
= 50 mA
Output High Saturation - 0.25 0.5 V
V
CC
- V
OUT
Output Low Saturation I
OUT
= 100 mA - 0.5 1 V
Rise Time C
L
= 1 nF - 20 ns
Fall Time C
L
= 1 nF - 20 - ns
Thermal Shutdown
T
SD
Thermal Shutdown Temp. - 165 - °C
Thermal Shutdown Hysteresis - 25 - °C
Thermal Resistance
TSSOP Package - 125 - °C/W
Thermal Resistance
θ
JA
Junction to Ambient
WSON Package - 32 - °C/W
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