Tripath Technology, Inc. - Technical Information
P I N D E S C R I P T I O N
Pin
Function
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.
2, 3
DCAP2, DCAP1
4, 9
5, 8,
17
V5D, V5A
AGND1, AGND2,
AGND3
Digital 5VDC, Analog 5VDC
Analog Ground
6
7
REF
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.
OVERLOADB
OAOUT1, OAOUT2
INV1, INV2
10, 14
11, 15
12
MUTE
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
16
18
BIASCAP
SLEEP
19
FAULT
A logic high output indicates thermal overload, or an output is shorted to ground,
or another output.
20, 35
22
PGND2, PGND1
DGND
OUTP2 & OUTM2;
OUTP1 & OUTM1
VDD2, VDD2
VDD1, VDD1
NC
Power Grounds (high current)
Digital Ground. Connect to AGND locally (near the TA2024B).
Bridged output pairs
24, 27;
31, 28
25, 26,
29, 30
13, 21,
23, 32,
34
Supply pins for high current H-bridges, nominally 12VDC.
Not connected. Not bonded internally.
33
VDDA
CPUMP
5VGEN
Analog 12VDC
36
Charge pump output (nominally 10V above VDDA)
Regulated 5VDC source used to supply power to the input section (pins 4 and 9).
1
T A 2 0 2 4 B P I N O U T
36-pin Power SOP Package
(Top View)
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
1
2
3
4
5
6
7
8
+5VGEN
DCAP2
DCAP1
V5D
AGND1
REF
OVERLOADB
AGND2
V5A
9
10
11
12
13
14
15
16
17
18
OAOUT1
INV1
MUTE
NC
OAOUT2
INV2
BIASCAP
AGND3
SLEEP
DGND
NC
PGND2
FAULT
4
TA2024B –KL/1.2/01.06
TRIPATH [ TRIPATH TECHNOLOGY INC. ]
