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Power comparator. TDA8931 Datasheet

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Power comparator. TDA8931 Datasheet
















TDA8931 comparator. Datasheet pdf. Equivalent













Part

TDA8931

Description

Power comparator



Feature


TDA8931 Power comparator 1 × 20 W Rev. 01 — 14 January 2004 Preliminary data sheet 1. General description The TDA8 931 is a switching power stage for high efficiency class-D audio power ampli er systems. It contains a Single-Ende d (SE) power stage, drive logic, protec tion control logic, a full differential input comparator and a HVP charger to charge the SE capacitor. .
Manufacture

NXP

Datasheet
Download TDA8931 Datasheet


NXP TDA8931

TDA8931; With this amplifier a compact 1 × 20 W closed loop self-oscillating digital a mplifier system can be built. The TDA8 931 has a high efficiency so that a he at sink is not required up to 20 W (RMS ). The system operates on an asymmetric al and a symmetrical supply voltage. 2 . Features s s s s s s s High efficien cy Operating voltage asymmetrical from 12 V to 35 V Operating volt.


NXP TDA8931

age symmetrical from ±6 V to ±17.5 V T hermally protected No heat sink require d Charger for single-ended capacitor No pop sound 3. Applications s s s s s F lat panel television sets Flat panel mo nitors Multimedia systems Wireless spea kers Micro systems 4. Quick reference data Table 1: General VP Iq Istb Isleep operating supply voltage quiescent cur rent standby current.


NXP TDA8931

sleep current asymmetrical symmetrical Operating mode; VP = 22 V Standby mode; VP = 22 V Sleep mode; VP = 22 V 12 ±6 22 ±11 20 10 100 35 30 15 200 V mA mA µA ±17.5 V Quick reference data Cond itions Min Typ Max Unit Symbol Paramete r Philips Semiconductors TDA8931 Powe r comparator 1 × 20 W Quick reference data continued Conditions Po = 15 W; Vp = 30 V; RL = 8 Ω Min 8.





Part

TDA8931

Description

Power comparator



Feature


TDA8931 Power comparator 1 × 20 W Rev. 01 — 14 January 2004 Preliminary data sheet 1. General description The TDA8 931 is a switching power stage for high efficiency class-D audio power ampli er systems. It contains a Single-Ende d (SE) power stage, drive logic, protec tion control logic, a full differential input comparator and a HVP charger to charge the SE capacitor. .
Manufacture

NXP

Datasheet
Download TDA8931 Datasheet




 TDA8931
TDA8931
Power comparator 1 × 20 W
Rev. 01 — 14 January 2004
Preliminary data sheet
1. General description
The TDA8931 is a switching power stage for high efficiency class-D audio power amplifier
systems.
It contains a Single-Ended (SE) power stage, drive logic, protection control logic, a full
differential input comparator and a HVP charger to charge the SE capacitor. With this
amplifier a compact 1 × 20 W closed loop self-oscillating digital amplifier system can be
built. The TDA8931 has a high efficiency so that a heat sink is not required up to
20 W (RMS). The system operates on an asymmetrical and a symmetrical supply voltage.
2. Features
s High efficiency
s Operating voltage asymmetrical from 12 V to 35 V
s Operating voltage symmetrical from ±6 V to ±17.5 V
s Thermally protected
s No heat sink required
s Charger for single-ended capacitor
s No pop sound
3. Applications
s Flat panel television sets
s Flat panel monitors
s Multimedia systems
s Wireless speakers
s Micro systems
4. Quick reference data
Table 1: Quick reference data
Symbol Parameter
Conditions
General
VP operating supply
voltage
asymmetrical
symmetrical
Iq
Istb
Isleep
quiescent current
standby current
sleep current
Operating mode; VP = 22 V
Standby mode; VP = 22 V
Sleep mode; VP = 22 V
Min Typ Max Unit
12 22 35 V
±6 ±11 ±17.5 V
- 20 30 mA
- 10 15 mA
- 100 200 µA




 TDA8931
Philips Semiconductors
TDA8931
Power comparator 1 × 20 W
Table 1: Quick reference data …continued
Symbol Parameter
Conditions
η efficiency
Po = 15 W; Vp = 30 V;
RL = 8
SE channel
Po maximum output power RL = 4 ; THD = 10 %
VP = 26 V
VP = 22 V
RL = 8 ; THD = 10 %
VP = 30 V
Min Typ Max Unit
89 91 -
%
21 22 -
15 16 -
15 16 -
W
W
W
5. Ordering information
Table 2: Ordering information
Type
number
Package
Name Description
Version
TDA8931T SO20 plastic small outline package; 20 leads; body width 7.5 mm SOT163-1
9397 750 13847
Preliminary data sheet
Rev. 01 — 14 January 2004
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
2 of 31




 TDA8931
Philips Semiconductors
6. Block diagram
TDA8931
Power comparator 1 × 20 W
VDDA
INP
INN
VSSA
5
4
3
2
TDA8931
comparator
CONTROL
DRIVER
HIGH
DRIVER
LOW
17 BOOT
18 VDDP
16 OUT
15 VSSP
POWERUP 6
ENABLE
CGND
7
9
ODP
OTP
OVP 12
OCP
OVP
UVP
Fig 1. Block diagram
STABILIZER
12V
VSSD
VDDP
CONTROL
VSSP
VDDP
VSSP
HEAT SPREADER
1 10 11 20
VSSD VSSD VSSD VSSD
14 STABI
13 HVP
19 HVPI
8
DIAG
001aab807
9397 750 13847
Preliminary data sheet
Rev. 01 — 14 January 2004
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
3 of 31




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