FAN8004 Fairchild Semiconductor, FAN8004 Datasheet - Page 13

• Manufacturer Part Number: FAN8004
• Description: Motor / Motion / Ignition Controllers & Drivers Motor Driver 4Ch BTL+1Ch DC
• Manufacturer: Fairchild Semiconductor
• Type: Infrared Remote Control Receiverr

Specifications of FAN8004

• Operating Temperature Classification: Commercial
• Package Type: QFPH
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 13.2V
• Operating Supply Voltage: 6.3 V
• Mounting Style: SMD/SMT
• Package / Case: QFP-48
• Operating Temperature: - 30 C to + 85 C
• Lead Free Status / RoHS Status: Compliant

Application Information
1. Reference Input & Mute
Pin 46 (REF) uses the reference input pin or the all mute input pin a reference input block circuit.
• Reference input
• All mute input
2. Separated Channel Mute Function
These pins are used for the individual channel mute operation.
• When the mute pins (pin22, 23 and 24) are high level, the mute circuits are activated so that the output circuit is muted.
• When the voltage of the mute pins (pin22, 23 and 24) are low level, the mute circuit is stopped and output circuits operate
• If the chip temperature rises above 175°C, then the thermal shutdown (TSD) circuit is activated and the
3. Protection Function
• Thermal shutdown (TSD)
• Under voltage lockout (UVLO) and over voltage protection (OVP)
4. Regulator & Reset Function
The regulator and reset circuits are as illustrated in Figure 1.
where R1=R2.
• The external circuit is composed of the transistor, KSB772 and a capacitor, about 33[mF]. The capacitor is used as a ripple
• The regulator output voltage (pin 41) is decided as follows.
• When the voltage of pin 44 (Vreset) is at 5[V], regulator output voltage(pin 41) is 5[V], and if 0[V], the output
In the case of external reference input, the applied voltage range must be between 2[V] and 6.5[V] at V
Using the all mute function pin, the applied voltage condition is as follows.
normally.
are muted.
- Mute 1, 2 (pin 24)-CH1, 2 mute control input pin.
- Mute 3 (pin 23)-CH3 mute control input pin.
- Mute 4 (pin 22)-CH4 mute control input pin.
If the chip temperature rises above 175°C, then the thermal shutdown (TSD) circuit is activated and the output circuit is
mute. The TSD circuit is temperature hysteresis about 25°C.
It is designed to mute operate the internal bias by the function of UVLO and OVP, when the power supply voltage falls
below 3.5[V] or above 20[V].
eliminator and should have good temperature characteristics.
Vout = 2 × 2.5 = 5[V] (where R1=R2)
of pin 41 is 0[V].
All Mute On Voltage
All Mute Off Voltage
Above 2.0[V]
Below 0.5[V]
Mute Function Operation
Normal Operation
CC
=8[V].
output circuits
FAN8004
voltage
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