FAN7888 Fairchild Semiconductor, FAN7888 Datasheet - Page 2

• Manufacturer Part Number: FAN7888
• Description: The FAN7888 is a monolithic three half-bridge gate-drive IC designed for high-voltage, high-speed driving MOSFETs and IGBTs operating up to +200V
• Manufacturer: Fairchild Semiconductor

© 2008 Fairchild Semiconductor Corporation
FAN7888 • Rev.1.0.0
Typical Application Circuit
Internal Block Diagram
3-Phase
BLDC Motor
Controller
+15V
VL
WU
WL
HIN1
HIN2
HIN3
LIN1
LIN2
LIN3
UL
VU
UU
CONTROL LOGIC
SHOOT-THOUGH
TRIGGER INPUT
PREVENTION
SCHMITT
10
1
2
3
4
5
7
8
9
6
Figure 1. 3-Phase BLDC Motor Drive Application
HIN1
LIN1
HIN2
LIN2
HIN3
LIN3
LO3
V
V
HO3
S3
B3
Figure 2. Functional Block Diagram
UHIN
ULIN
V
VHIN
V
WHIN
WLIN
VDD_UVLO
VLIN
VDD
DD
DD
U Phase Driver
HO1
HO2
LO1
LO2
GND
V
V
V
V
V
B1
S1
B2
S2
DD
20
19
18
17
16
15
14
13
12
11
2
V Phase Driver
W Phase Driver
CANCELLER
NOISE
R
S
DELAY
UVLO
UVLO
Q1
Q3
Q5
V
Q4
Q6
Q2
V
V
R
S2
S1
S3
Q
Q1
Q4
V
3-Phase Inverter
S1
Up to 200V
Q3
Q6
V
S2
FAN7888 Rev.01
Q5
Q2
GND
HO3
V
V
HO2
LO2
LO3
LO1
V
V
V
V
V
V
HO1
S3
DD
B3
S3
B2
S2
B1
S1
FAN7888 Rev.00
I
I
I
U
W
V
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