TECHNICAL INFORMATION
Pin Description
Pin
2, 3
Function
DCAP2, DCAP1
Description
Charge pump switching pins. DCAP1 (pin 3) is a free running 300kHz square
wave between VDDA and DGND (12Vpp nominal). DCAP2 (pin 2) is level shifted
10 volts above DCAP1 (pin 3) with the same amplitude (12Vpp nominal),
frequency, and phase as DCAP1.
Digital 5VDC, Analog 5VDC
Analog Ground
Internal reference voltage; approximately 1.0 VDC.
A logic low output indicates the input signal has overloaded the amplifier.
Input stage output pins.
Single-ended inputs. Inputs are a “virtual” ground of an inverting opamp with
approximately 2.4VDC bias.
When set to logic high, both amplifiers are muted and in idle mode. When low
(grounded), both amplifiers are fully operational. If left floating, the device stays in
the mute mode. This pin should be tied to GND if not used.
Input stage bias voltage (approximately 2.4VDC).
When set to logic high, device goes into low power mode. If not used, this pin
should be grounded
A logic high output indicates thermal overload, or an output is shorted to ground,
or another output.
Power Grounds (high current)
Digital Ground
Bridged outputs
Supply pins for high current H-bridges, nominally 12VDC.
Not connected. Not bonded internally.
Analog 12VDC
Charge pump output (nominally 10V above VDDA)
Regulated 5VDC source used to supply power to the input section (pins 4 and 9).
4, 9
5, 8,
17
6
7
10, 14
11, 15
12
16
18
19
20, 35
22
24, 27;
31, 28
25, 26,
29, 30
13, 21,
23, 32,
34
33
36
1
V5D, V5A
AGND1, AGND2,
AGND3
REF
OVERLOADB
VP1, VP2
IN1, IN2
MUTE
BIASCAP
SLEEP
FAULT
PGND2, PGND1
DGND
OUTP2 & OUTM2;
OUTP1 & OUTM1
VDD2, VDD2
VDD1, VDD1
NC
VDDA
CPUMP
5VGEN
36-pin Power SOP Package
(Top View)
+5VGEN
DCAP2
DCAP1
V5D
AGND1
REF
OVERLOADB
AGND2
V5A
VP1
IN1
MUTE
NC
VP2
IN2
BIASCAP
AGND3
SLEEP
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
CPUMP
PGND1
NC
VDDA
NC
OUTP1
VDD1
VDD1
OUTM1
OUTM2
VDD2
VDD2
OUTP2
NC
DGND
NC
PGND2
FAULT
Page 4
TA2024 Preliminary, Rev. 1.0
TRIPATH [ TRIPATH TECHNOLOGY INC. ]
