Datasheet

2.3xR(DRV593)
14.5xR(DRV594)
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2.3xR(DRV593)
14.5xR(DRV594)
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+
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+
Gate
Drive
Gate
Drive
AVDD
OC
Detect
Start-Up
Protection
Logic
Thermal VDDok
Ramp
Generator
Biases
and
References
TTL
Input
Buffer
IN−
IN+
SHUTDOWN
R
R
AGND
AVDD
PVDD
H/C
PGND
PVDD
PWM
PGND
FAULT0
FAULT1
INT/EXT
FREQ
COSC
ROSC
AREF
DRV593
DRV594
www.ti.com SLOS401C –OCTOBER 2002–REVISED JULY 2010
FUNCTIONAL BLOCK DIAGRAM
TYPICAL CHARACTERISTICS
Table of Graphs
FIGURE
Efficiency vs Load resistance 2, 3
vs Supply voltage 4
r
DS(on)
Drain-source on-state resistance vs Free-air temperature 5
vs Free-air temperature 6
I
q
Supply current vs Supply voltage 7
PSRR Power supply rejection ratio vs Frequency 8, 9
Closed loop response 12, 13
vs Output voltage 14
I
O
Maximum output current
vs Ambient temperature 15
V
IO
Input offset voltage Common-mode input voltage 16, 17
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