U211B ATMEL Corporation, U211B Datasheet - Page 11

• Manufacturer Part Number: U211B
• Description: as U209B + Foldback
• Manufacturer: ATMEL Corporation

Electrical Characteristics (continued)
–V
Rev. A4, 03-Aug-01
Frequency-to-voltage converter
Input bias current
Input voltage limitation
Turn-on threshold
Turn-off threshold
Charge amplifier
Discharge current
Charge transfer voltage
Charge transfer gain
Conversion factor
Output operating range
Linearity
Soft start, see figures 10, 12, f/v-converter non-active
Starting current
Final current
f/v-converter active, see figures 11, 13, 14
Starting current
Final current
Discharge current
Automatic retriggering, see figure 21
Repetition rate
Repetition rate
Load limiting, see figures 17, 18, 19
Operating voltage range
Offset current
Input current
Output current
Overload ON
S
= 13.0 V, T
Parameters
amb
= 25 C, reference point Pin 2, unless otherwise specified
See figure 15
I
I
See figure 2, C
Pin 9
I
See figure 2
C
V
V
V
V
Restart pulse
R
R
V
V
V
V
I
I
10
5
5-3
5-3
13
13
13
13
10
14
10
14
= –1 mA
= +1 mA
Test Conditions / Pins
/I
= 1 nF, R
9
= V
= 0.5
= V
= 0.5
= V
= V
= 4.5 V
= 300 mV
= 0
= 15 kW
16,
16
16
2
via 1 kW
V
6
8
Pins 9 and 10
= 100 kW
Pins 10 to 16
= V
5
Pins 9 to 16
= 1 nF,
Pin 15–16
Pin 15–16
Pin 15–16
2
Pin 13
Pin 13
Pin 13
Pin 13
Pin 5
Pin 14
Pin 14
Pin 14
Pin 8
Pin 14
Symbol
–V
–V
V
+V
–V
V
V
I
I
t
t
V
G
I
I
I
I
I
I
I
I
TON
K
TOFF
dis
I
pp
pp
IB
TON
O
O
O
O
O
O
O
O
ch
I
O
i
I
I
I
Min.
7.25
6.50
–1.0
7.05
660
110
7.5
0.5
20
20
50
30
60
2
3
5
Typ.
6.70
100
0-6
0.6
0.5
8.3
5.5

4.5
0.1
7.4
50
45
85
55
20
90
4
3
1
Max.
8.05
6.90
750
150
130
120
140
9.0
1.0
1.0
7.7
55
80
10
12
U211B
2
7
6
mV/Hz
Unit
11 (21)
mV
mV
mV
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
%
V
V
V
t
t
V
V
p
p