TPS40200-EP_08 Datasheet, PDF (4/41 Pages) Texas Instruments – WIDE-INPUT-RANGE NONSYNCHRONOUS VOLTAGE-MODE CONTROLLER

TPS40200-EP
SGLS371 – JANUARY 2007
ELECTRICAL CHARACTERISTICS (continued)
–55°C < T_A = T_J < 125°C, V_DD = 12 V, f_OSC = 100 kHz (unless otherwise noted)
PARAMETER
TEST CONDITIONS
I_COMP(snk) Output sink current
V_FB = 1.2 V, COMP = 1 V
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MIN
TYP MAX UNIT
1.0
2.5
mA
THERMAL CHARACTERISTICS
over operating free-air temperature range (unless otherwise noted)
PARAMETER
θ_JC Thermal resistance, junction to case
θ_JA Thermal resistance, junction to ambient
θ_JA Thermal resistance, junction to ambient
TEST CONDITIONS
(1)
(1)_HIGH-K
(1)_LOW-K
TYP UNIT
49 °C/W
97.5 °C/W
176 °C/W
(1) TI uses test boards designed to JESD 51-3 and JESD 51-7 for thermal-impedance measurements. The parameters outlined in these
standards also are used to set up thermal models.
T_A
–55°C to 125°C
OUTPUT
VOLTAGE
Adjustable
ORDERING INFORMATION
PACKAGE
SOIC – D
ORDERABLE PART NUMBER
MEDIUM
TPS40200MDREP
Tape and reel
QUANTITY
2500/reel
DEVICE INFORMATION
Functional Block Diagram
COMP 3
FB 4
SS 2
ISNS 7
E/A and SS
–
Reference
Soft-Start
and
Overcurrent
+
+ ^{700 mV}
Enable E/A
RC 1
UVLO
OSC
PWM
Logic
8 VDD
GDRV voltage
swing limited
to (V_IN – 8 V)
Driver
6 GDRV
5 GND
RC
SS
COMP
FB
D PACKAGE
(TOP VIEW)
1
8
2
7
3
6
4
5
VDD
ISNS
GDRV
GND
4
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