SI824X Datasheet, PDF (5/30 Pages) Silicon Laboratories – CLASS D AUDIO DRIVER WITH PRECISION DEAD-TIME GENERATOR

Si824x
2. Electrical Specifications
Table 1. Electrical Characteristics¹
4.5 V < VDDI < 5.5 V, VDDA = VDDB = 12 V or 15 V. TA = –40 to +125 °C. Typical specs at 25 °C
Parameter
DC Specifications
Input-Side Power Supply
Voltage
Driver Supply Voltage
Input Supply Quiescent
Current
Output Supply Quiescent
Current
Input Supply Active Current
Output Supply Active Current
Input Pin Leakage Current
Input Pin Leakage Current
Logic High Input Threshold
Logic Low Input Threshold
Input Hysteresis
Logic High Output Voltage
Logic Low Output Voltage
Output Short-Circuit Pulsed
Sink Current
Output Short-Circuit Pulsed
Source Current
Output Sink Resistance
Output Source Resistance
Symbol
Test Conditions
VDDI
Voltage between VDDA and
VDDA, VDDB GNDA, and VDDB and GNDB
(See “6. Ordering Guide” )
IDDI(Q)
Si8241/44
IDDA(Q),
IDDB(Q)
IDDI
IDDO
IPWM
IDISABLE
VIH
VIL
VI_HYST
VOAH,
VOBH
Current per channel
PWM freq = 500 kHz
PWM freq = 500 kHz
IOA, IOB = –1 mA
VOAL, VOBL
IOA(SCL),
IOB(SCL)
IOA(SCH),
IOB(SCH)
R_ON(SINK)
R_ON(SOURCE)
IOA, IOB = 1 mA
Si8241, Figure 2
Si8244, Figure 2
Si8241, Figure 3
Si8244, Figure 3
Si8241
Si8244
Si8241
Si8244
Min
4.5
6.5
—
—
—
—
–10
–10
2.0
—
400
(VDDA
/VDDB)
— 0.04
—
—
—
—
—
—
—
—
—
Notes:
1. VDDA = VDDB = 12 V for 8 V UVLO and 10 V UVLO devices.
2. The largest RDT resistor that can be used is 220 k.
Typ
—
—
2
—
2.5
3.6
—
—
—
—
450
—
—
0.5
4.0
0.25
2.0
5.0
1.0
15
2.7
Max Units
5.5
V
24
V
3
mA
3.0 mA
— mA
— mA
+10 µA dc
+10 µA dc
—
V
0.8
V
— mV
—
V
0.04 V
—
A
—
A
—
A
—
A
—

—

—

—

Rev. 1.0
5