Philips 40PFT4100/12 - Page 50

IC Data Sheets
EN 50 TPN15.1E LA8.
2015-Oct-30
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8.2 Diagram 10-7-1 System Power, B01, M5723B (IC U701)
Figure 8-2 Internal block diagram and pin configuration
19760_300.eps
Block diagram
Pinning information
FB1
10
8
7
1
2
3
4
EN1
AGND
AGND
LX
PGND
IN1
OUT2
9
6
5
EN2
IN2
Thermal
Pad
FB1
10
8
7
1
2
3
4
EN1
AGND
AGND
LX
PGND
IN1
OUT2
9
6
5
EN2
IN2
Thermal
Pad
FB1
10
8
7
1
2
3
4
EN1
AGND
AGND
LX
PGND
IN1
OUT2
M5723B
9
6
5
EN2
IN2
Thermal
Pad
IN1
+
CONTROL
HDRV
A1
+
100mΩ
80mΩ
LDRV
R
S
Q
Thermal
Shutdown
UVLO
OSC
Compensation
+
EA
VREF
LX
Zero Current Detect
Current Sense
OC
0.6V
FB1
IN2
OUT2
SHUTDOWN
LOGIC
1.25V
Vref
炼
ERROR
AMP
為
OVER CURRENT
PROTECT & DYNAMIC
FEEDBACK
AGND
R1
R2
OVER TEMP.
PROTECT
EN1
PGND
EN2
IN1
+
CONTROL
HDRV
A1
+
100mΩ
80mΩ
LDRV
R
S
Q
Thermal
Shutdown
UVLO
OSC
Compensation
+
EA
VREF
LX
Zero Current Detect
Current Sense
OC
0.6V
FB1
IN2
OUT2
SHUTDOWN
LOGIC
1.25V
Vref
炼
ERROR
AMP
為
OVER CURRENT
PROTECT & DYNAMIC
FEEDBACK
AGND
R1
R2
OVER TEMP.
PROTECT
EN1
PGND
EN2