STA518 データシートの表示（PDF） - STMicroelectronics
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STA518 Datasheet PDF : 19 Pages
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Electrical specifications
STA518
Table 6.
Symbol
Electrical Characteristcs (continued)
Refer to circuit in Figure 3 (VL = 3.3V; VCC = 30V; RL = 8Ω; fsw = 384KHz;
Tamb = 25°C unless otherwise specified)
Parameter
Test conditions
Min. Typ. Max. Unit
IFAULT
Output Current pins
FAULT -TH-WARN when
FAULT CONDITIONS
Vpin = 3.3V
1
mA
IVCC-hiz
Supply current from Vcc in Tri-
state
VCC = 30V; Tri-state = 0
22
mA
IVCC
Supply current from VCC in
operation
(both channel switching)
VCC = 30V;
Input pulse width = 50% Duty;
Switching Frequency = 384kHz;
No LC filters;
IVCC-q Isc (short circuit current limit) (2) VCC = 30V
3.5
VUV
Undervoltage protection
threshold
tpw_min Output minimum pulse width
No Load
70
1. The Table 7 explains the VLOW, VHIGH variation with Ibias.
2. See relevant Application Note AN1994
50
mA
6
A
7
V
150 ns
Table 7.
VLOW, VHIGH variation with Ibias
VL
VLow min
2.7
0.7
3.3
0.8
5
0.85
VHigh max
1.5
1.7
1.85
Unit
V
V
V
Table 8. Logic Truth Table (see Figure 4)
TRI-STATE
INxA
INxB
Q1
0
x
x
OFF
1
0
0
OFF
1
0
1
OFF
1
1
0
ON
1
1
1
ON
Q2
OFF
OFF
ON
OFF
ON
Q3
OFF
ON
ON
OFF
OFF
Q4
OFF
ON
OFF
ON
OFF
OUTPUT
MODE
Hi-Z
DUMP
NEGATIVE
POSITIVE
Not used
10/19
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