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SA58637

NXP
Part Number SA58637
Manufacturer NXP
Description 2 x 2.2W BTL audio amplifier
Published Feb 4, 2016
Detailed Description SA58637 2 × 2.2 W BTL audio amplifier Rev. 01 — 25 February 2008 Product data sheet 1. General description The SA58637 ...
Datasheet PDF File SA58637 PDF File

SA58637
SA58637

Overview
SA58637 2 × 2.
2 W BTL audio amplifier Rev.
01 — 25 February 2008 Product data sheet 1.
General description The SA58637 is a two-channel audio amplifier in an HVQFN20 package.
It provides power output of 2.
2 W per channel with an 8 Ω load at 9 V supply.
The internal circuit is comprised of two Bridge-Tied Load (BTL) amplifiers with a complementary PNP-NPN output stage and standby/mute logic.
The SA58637 is housed in a 20-pin HVQFN package, which has an exposed die attach paddle enabling reduced thermal resistance and increased power dissipation.
2.
Features I Low junction-to-ambient thermal resistance using exposed die attach paddle I Gain can be fixed with external resistors from 6 dB to 30 dB I Standby mode controlled by CMOS-compatible levels I Low standby current < 10 µA I No switch-on/switch-off plops I High power supply ripple rejection: 50 dB minimum I ElectroStatic Discharge (ESD) protection I Output short circuit to ground protection I Thermal shutdown protection 3.
Applications I Professional and amateur mobile radio I Portable consumer products: toys and games I Personal computer remote speakers NXP Semiconductors SA58637 2 × 2.
2 W BTL audio amplifier 4.
Quick reference data Table 1.
Quick reference data VCC = 6 V; Tamb = 25 °C; RL = 8 Ω; VMODE = 0 V; measured in test circuit Figure 3; unless otherwise specified.
Symbol Parameter Conditions Min Typ Max Unit VCC supply voltage Iq quiescent current Istb standby current Po output power operating RL = ∞ Ω VMODE = VCC THD+N = 10 % THD+N = 0.
5 % 2.
2 9 18 [1] - 15 22 - - 10 1.
2 1.
5 - 0.
9 1.
1 - V mA µA W W THD+N = 10 %; VCC = 9 V; application demo board - 2.
2 - W THD+N total harmonic distortion-plus-noise Po = 0.
5 W - 0.
15 0.
3 % PSRR power supply rejection 1 kHz [2] 50 - - dB ratio 100 Hz to 20 kHz [3] 40 - - dB [1] With a load connected at the outputs the quiescent current will increase, the maximum of this increase being equal to the DC output offset voltage divided by RL.
[2] Pow...


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