TDA2030V STMicroelectronics, TDA2030V Datasheet - Page 9

• Manufacturer Part Number: TDA2030V
• Description: IC AMP AUDIO 18W HIFI PENTAWATT5
• Manufacturer: STMicroelectronics
• Type: Class ABr

Specifications of TDA2030V

• Output Type: 1-Channel (Mono)
• Max Output Power X Channels @ Load: 18W x 1 @ 4 Ohm
• Voltage - Supply: 12 V ~ 36 V, ±6 V ~ 18 V
• Features: Short-Circuit and Thermal Protection
• Mounting Type: Through Hole
• Package / Case: Pentawatt-5 (Vertical, Bent and Staggered Leads)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-3954-5

SHORT CIRCUIT PROTECTION
The TDA2030 has an original circuit which limits the
current of the output transistors. Fig. 18 shows that
the maximum output current is a function of the
collector emitter voltage; hence the output transis-
tors work within their safe operating area (Fig. 2).
This function can therefore be considered as being
THERMAL SHUT-DOWN
The presence of a thermal limiting circuit offers the
following advantages:
1. An overload on the output (even if it is perma-
2. The heatsink can have a smaller factor of safety
nent), or an above limit ambient temperature can
be easily supported since the T
higher than 150 C.
compared with that of a conventional circuit.
There is no possibility of device damage due to
high junction temperature. If for any reason, the
Fi g ure 1 8. Maximum
ou tpu t
voltage [V
each output transistor
c urr en t
CEsat
] across
vs.
j
cannot be
peak power limiting rather than simple current lim-
iting.
It reduces the possibility that the device gets dam-
aged during an accidental short circuit from AC
output to ground.
The maximum allowable power dissipation de-
pends upon the size of the external heatsink (i.e. its
thermal resistance); fig. 22 shows this dissipable
power as a function of ambient temperature for
different thermal resistance.
junction temperature increases up to 150 C, the
thermal shut-down simply reduces the power
dissipation at the current consumption.
Figure 19. Safe operating area and
collector characteristics of the
protected power transistor
TDA2030
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