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99W139A
4-Channel BTL driver
BA5994FM
Description The BA5994FM is a 4-channel BTL driver for an actuator and motor driver of CD/CD-ROM. (Inputs for the driver connect to an operational amplifier and it is compatible with various applications.) Channel 2&3 include a short-brake function.
Dimension (Units:mm)
Features 1) 4-channel BTL driver 2) Wide dynamic range (4V typical at PreVcc=12V, PowVcc=5V, RL=8) 3) Built-in thermal shut down circuit 4) Separating Vcc into Pre and Power (Power divides into Channel1&2 and Channel 3&4) makes for improved power efficiency, by a lower supply voltage drive 5) Mute operated individually with Channel 4 and Channel 1&2&3 6) All channels are mute in standby mode 7) Suitable for low operation voltage DSP by wide dynamic range pre operational amplifier. 8) Built-in short-brake circuit (Channel 2&3)
HSOP-M28
Applications CD, CD-ROM
Absolute Maximum Ratings (Ta=25C)
Parameter Supply voltage Power dissipation Output current Operating temperature range Storage temperature rang Symbol PREVcc, POWVcc Pd IOMAX Topr Tstg Limits 13.5 2.2 1 -35 ~ -55 ~
*1 *2
Unit V W A C C
+85 +150
*1 On less than 3% (percentage occupied by copper foil), 70mm
70mm, t=1.6mm, glass epoxy mounting.
Derating: 17.6mW/C for operation above Ta=25C
*2 The output current must not exceed the maximum ASO.
January, 2000
Recommended Operating Conditions (Ta=25 C)
Parameter Supply voltage Symbol PREVCC POWVCC Min. 4.5 4.5 Typ. Max. 13.2 PREVCC Unit V V
Electrical characteristics
(Unless otherwise noted, Ta=25 C, PreVcc=12V, PowVcc1=5V, PowVcc2=5V, V BIAS=1.65, VRL=8W) Parameter Quiescent current All Channel Standby Current Output offset voltage Maximum output voltage 1 Maximum output voltage 2 Closed loop voltage gain 1 Closed loop voltage gain 2

 Input offset voltage Input bias current High level output voltage Low level output voltage Output sink current Output source current VOFOP VBOP VOHOP VOLOP ISI 6 9 1 0 11 500 6 300 0.3 mV nA V V mA VBIAS=6V VBIAS=6V Output to PreVcc by 50W,VBIAS=6V VOOF VOM1 VOM2 GVC1 GVC2 70 3.6 7.5 10 16 0 4.0 9 12 18 70 14 20 mV V V dB dB CH1, 2 VIN=VBIAS CH3, 4 VIN=VBIAS 1.65V 1.65V * Symbol IQ IQST3 Min. Typ. 20 Max. 30 1 Unit mA mA No load No load (Pre circuit current) Conditions
CH1, 2 VIN=VBIAS 0.5V CH3, 4 VIN=VBIAS 0.5V *
ISO 300 mA Output to GND by 50W,VBIAS=6V This product is not designed for protection against radioactive rays. * PowVcc1=PowVcc2=12V
10k
Application circuit
15
10k
10k
10k
LEVEL SHIFT
Tray motor
LEVEL SHIFT
M
14
focus coil
10k 10k 10k 10k
16
10k
17
10k
10k 10k
Sled motor
LEVEL SHIFT
LEVEL SHIFT
M
12
13
tracking coil
10k Vcc 10k
18
STANDBY Vcc 10k
12V(for ch3,4)
10k
11
0.1mF
0.1mF
H=ENABLE L=STANDBY
STANDBY CH1,2,3
H=ENABLE L=STANDBY
CH4
20
21
22
20k
10k
10k
23
10k
24
25
10k
20k
10k
26
10k
27
Vcc
28
0.1mF
SB1 SB2
1
2
3
4
5
6
7
8
9
DIGITAL SERVO
TRACKING
SLED
FOCUS
BIAS
5V(for ch1,2)
19
10

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