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| U211B Datasheet, PDF (2/30 Pages) ATMEL Corporation – Phase Control IC with Overload Limitation for Tacho Applications | |||
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2. Pin Configuration
Figure 2-1. Pinning DIP18
Isync 1
GND 2
VS 3
Output 4
Retr 5
VRP 6
CP 7
F/V 8
CRV 9
U211B
18 PB/TM
17 Vsync
16 VRef
15 OVL
14 Isense
13 Csoft
12 CTR/OPO
11 OP+
10 OP-
Table 2-1.
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Pin Description
Symbol Function
Isync
GND
Current synchronization
Ground
VS
Output
Supply voltage
Trigger pulse output
Retr
Retrigger programming
VRP
Ramp current adjust
CP
Ramp voltage
F/V
Frequency-to-voltage converter
CRV
Charge pump
OP-
OP inverting input
OP+
OP non-inverting input
CTR/OPO Control input/OP output
Csoft
Isense
OVL
Soft start
Load-current sensing
Overload adjust
VRef
Vsync
PB/TM
Reference voltage
Voltage synchronization
Pulse blocking/tacho monitoring
2 U211B
4752BâINDCOâ09/05
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