CS35L00
ELECTRICAL CHARACTERISTICS - ALL OPERATIONAL MODES
Parameters
Max. Current from LFILT+
LFILT+ Output Impedance
VBATT Limit for HD/FHD Mode
Symbol
I
LFILT+
Z
LFILT+
VB
LIM
V
IN-LDO
Test Conditions
Min
-
-
-
Typ
10
0.7
3.0
0.014•VBATT
0.027•VBATT
0.09
0.18
800
1.0
+/-2
12
6
0.05
380
150
100
1.9
10
Max Units
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
A
VDC
Vrms
Vrms
Vrms
Vrms
ms
V
mV
dB
dB
A
m
C
ms
V
s
Input Level for Entering LDO Operation in
HD/FHD Modes
GAIN_SEL = Low (12 dB)
GAIN_SEL = High (6 dB)
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Input Level for Entering VBATT Operation
GAIN_SEL = Low (12 dB)
V
IN-VBATT
in HD/FHD Modes
GAIN_SEL = High (6 dB)
LDO Entry Time Delay
LDO Level for HD/FHD Modes
Output Offset Voltage
Amplifier Gain
Shutdown Supply Current
MOSFET On Resistance
Thermal Error Threshold
Thermal Error Retry Time
t
LDO
VLDO
V
OFFSET
Inputs AC coupled to GND
A
V
I
A(SD)
GAIN_SEL = Low
GAIN_SEL = High
SD = Low
R
DS(ON)
I
bias
= 0.5 A
T
TE
R
TE
UVLO
GD
Output Levels at 10% THD+N
4
+
33H 8
+
33H
Load
Load
VBATT = 5 VDC
VBATT = 3.7 VDC
VBATT = 5 VDC
VBATT = 3.7 VDC
Under Voltage Lockout Threshold
Total Group Delay
-
-
-
-
89
88
81
80
-
-
-
-
%
%
%
%
Operating Efficiency
Note:
6. No external loads should be connected to the LFILT+ net. Any connection of a load to this point may
result in errant operation or performance degradation in the device.
7. When VBATT is below this threshold (VB
LIM
), operation is automatically restricted to SD mode.
8. When operating in HD or FHD mode and the differential input voltage remains below the input level
threshold (V
IN-LDO
) for a period of time (t
LDO
), the PWM outputs will be powered by the internally
generated LDO supply (VLDO).
9. When operating in HD or FHD mode and the differential input voltage is above this input level
threshold (V
IN-VBATT
), the PWM outputs will powered directly from the VBATT supply.
10. Refer to
for more information on Thermal Error functionality.
DS906A2
9
CIRRUS [ CIRRUS LOGIC ]
