IP1844 查看數據表（PDF） - Semelab - > TT Electronics plc
零件编号
产品描述 (功能)
生产厂家
IP1844 Datasheet PDF : 6 Pages
| |||
SEME
LAB
IP1844 SERIES
IP1845 SERIES
APPLICATIONS INFORMATION
4.7k Ω
1k Ω
ERROR AMP
ADJUST
4.7k Ω
Open–Loop Laboratory Test Fixture
2N2222
100k Ω
5k Ω
ISENSE
ADJUST
RT
1 COMP
2 VFB
3 ISENSE
4 R T /C T
VREF 8
VCC 7
O/P 6
0.1
µF
0.1
µF 1k Ω
1kW
GND 5
VREF
VCC
OUTPUT
GROUND
CT
High peak current associated with capacitive loads necessitate careful grounding techniques. Timing and bypass capacitors should
be connected close to pin 5 in a single point ground. The transistor and 5K potentiometer are used to sample the oscillator wave
form and apply an adjustable ramp to pin 3.
TYPICAL PERFORMANCE CHARACTERISTICS
OUTPUT SATURATION CHARACTERISTICS
4
3
VCC = 15V
TA = 25˚C
TA = –55˚C
2
SOURCE SAT (VCC- VOH)
1
S INK SAT (VOL )
0
.01
.02 .03 .04 .05 .07 .1
.2 .3 .4 .5 .7 1.0
OUTPUT CURRENT, SOURCE / SINK (A)
100
80
60
40
20
0
10
ERROR AMPLIFIER OPEN-LOOP
FREQUENCY RESPONSE
0
–45
–90
B
–135
AV
–180
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
UNDER VOLTAGE LOCKOUT
1844 SERIES
20
15
10
0 .5
0
0
5
10
15
20
VCC (V)
UNDER VOLTAGE LOCKOUT
1845 SERIES
20
15
10
0.5
0
0
2.5
5
7 .5
10
VCC (V)
Semelab plc. Telephone (01455) 556565. Telex: 341927. Fax (01455) 552612.
Prelim. 2/95
Share Link: 