viper31sp STMicroelectronics, viper31sp Datasheet - Page 7

• Manufacturer Part Number: viper31sp
• Description: Battery Charger Primary I.c.
• Manufacturer: STMicroelectronics

Figure 4: Error Amplifier Phase and Gain
Figure 5: Reference Voltage Measurement
(dB)
100
-50
50
0
1
10
12V
4.7uF
16V
100
3.3nF
8.2k
6
8
2
GAIN
Cload = 100pF
VIPer31
VDD
OSC
VCC
Frequency (Hz)
3
VOLTAGE CONTROL
1k
2.6V
FB
10
GND
-
+
PHASE
COMP
10k
9
Vreg
CREF
DSENSE
4
100k
CURRENT
CONTROL
CSENSE
1
7
1M
SOURCE
SC12070
DRAIN
SC12060
11
5
10M
VIPer31SP
200
150
100
50
0
-50
-100
-150
( )
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