FAN8741 Fairchild Semiconductor, FAN8741 Datasheet - Page 8

• Manufacturer Part Number: FAN8741
• Manufacturer: Fairchild Semiconductor

FAN8741/FAN8742 Rev. 1.0.1
1. 56-TSSOP-EP, Case 1: Single layer PCB with 1 signal plane only, PCB size is 76mm
2. 56-TSSOP-EP, Case 2: Multi layer PCB with 1 signal, 1 power and 1 ground planes, PCB size is 76mm
3. 56-TSSOP-EP, Case 3: PCB condition is same to case 2 except via holes, which penetrate PCB all layers. Down pad of IC is sol-
4. 56-SSOP-HS, Case 1: Single layer PCB with 1 signal plane only, PCB size is 76mm
5. 56-SSOP-HS, Case 2: Multi layer PCB with 1 signal, 1 power and 1 ground planes, PCB size is 76mm
6. Power dissipation is reduced by -12.8mW/ C for using above Ta=25 C in 56-TSSOP-EP, case 1.
7. Power dissipation is reduced by -25.6mW/ C for using above Ta=25 C in 56-TSSOP-EP, case 2.
8. Power dissipation is reduced by -32.8mW/ C for using above Ta=25 C in 56-TSSOP-EP, case 3.
9. Power dissipation is reduced by -24.8mW/ C for using above Ta=25 C in 56-SSOP-HS, case 1.
10. Power dissipation is reduced by -37.6mW/ C for using above Ta=25 C in 56-SSOP-HS, case 2.
11. Do not exceed P
Power Dissipation Curve
Recommended Operating Conditions (Ta = 25 C)
Supply Voltage (Spindle Signal block)
Supply Voltage (Digital block)
Supply Voltage (Spindle driver)
Supply Voltage (Sled driver)
Supply Voltage (BTL driver)
Supply Voltage (BTL signal block)
Output current(Spindle)
Output current(Focus, Tracking, Loading)
Output current(Sled)
plane sizes for power and ground is 74mm
dered on the PCB.
plane sizes for power and ground is 74mm
5
4
3
2
1
Power dissipation, [W]
D
and SOA (Safe Operating Area).
Parameter
25
SOA
50
56-SSOP-HS,case2
56-TSSOP-EP,case3
62mm
62mm
56-TSSOP-EP,case2
75
0.035mm. Down pad of IC is soldered on the PCB.
0.035mm.
56-SSOP-HS,case1
8
56-TSSOP-EP,case1
100
Min.
4.5
4.5
4.5
4.5
4.5
4.5
-
-
-
125
Typ.
114mm
Ambient temperature, [
1.0
0.5
0.5
12
12
12
12
114mm
5
5
1.6mm.
1.6mm.
150
SV
Max.
13.2
13.2
13.2
5.5
5.5
1.5
0.8
0.8
CC2
114mm
114mm
o
175
C]
www.fairchildsemi.com
1.6mm, Cu
1.6mm, Cu
Unit
V
V
V
V
V
V
A
A
A