
HA13157
33 W × 4-Channel BTL Power IC
ADE-207-242
1st. Edition
Description
The HA13157 is four-channel BTL amplifier IC designed for car audio, featuring high output and low
distortion, and applicable to digital audio equipment. It provides 33 W output per channel, with a 13.7
V power supply and at Max distortion.
Functions
• 4 ch BTL power amplifiers
• Built-in standby circuit
• Built-in muting circuit
• Built-in protection circuit (surge, T.S.D, and ASO)
Features
• Requires few external parts
• Popping noise minimized
• Low output noise
• Built-in high reliability protection circuit
• Pin to pin with HA13150A/HA13151/HA13152/HA13153/HA13155

HA13157
Absolute Maximum Ratings
Item Symbol Rating Unit
Operating supply voltage V
Supply voltage when no signal*
Peak supply voltage*
Output current*
Power dissipation*
2
3
4
1
CC
VCC (DC) 26 V
VCC (PEAK) 50 V
IO (PEAK) 4 A
P
T
Junction temperature Tj 150 °C
Operating temperature Topr –30 to +85 °C
Storage temperature Tstg –55 to +125 °C
Note: 1. Tolerance within 30 seconds.
2. Tolerance in surge pulse waveform.
3. Value per 1 channel.
4. Value when attached on the infinite heat sink plate at Ta = 25 °C.
The derating carve is as shown in the graph below.
18 V
83 W
3

HA13157
Electrical Characteristics (VCC = 13.2 V, f = 1 kHz, RL = 4 Ω, Rg = 600 Ω, Ta =
25°C)
Item Symbol Min Typ Max Unit Test Conditions
Quiescent current I
Output offset voltage ∆V
Gain G
Gain difference between
Q1
∆G
Q
V
V
channels
Rated output power P
Max output power P
O
OMAX
Total harmonic distortion T.H.D. — 0.02 — % Po = 3 W
Output noise voltage WBN — 0.15 — mVrms Rg = 0 Ω,
Ripple rejection SVR — 55 — dB f = 120 Hz
Channel cross talk C.T. — 70 — dB Vout = 0 dBm
Input impedance Rin — 25 — kΩ
Standby current I
Standby control voltage (high) V
Standby control voltage (low) V
Muting control voltage (high) V
Muting control voltage (low) V
Q2
STH
STL
MH
ML
Muting attenuation ATTM — 70 — dB Vout = 0 dBm
— 350 — mA Vin = 0
–250 0 250 mV
30.5 32 33.5 dB
–1.5 0 1.5 dB
— 20 — W VCC = 13.2 V,
THD = 10%, RL = 4 Ω
— 33 — W VCC = 13.7 V, RL = 4 Ω
BW = 20 to 20 kHz
— — 10 µA
3.5 — V
V
CC
0 — 1.5 V
3.5 — V
V
CC
0 — 1.5 V
4