TC170 Ver la hoja de datos (PDF) - Microchip Technology
Número de pieza
componentes Descripción
Fabricante
TC170 Datasheet PDF : 16 Pages
| |||
TC170
Functional Block Diagram
VREF
2
VIN 15
5.1-Volt
Reference
RO 9
CO 8
Oscillator
Undervoltage
Lockout
10
Sync
(–) Current 3
Sense Input
(+) Current 4
Sense Input
7
Comp
(+) Error 5
Amp Input
(–) Error 6
Amp Input
x 3.15 Current
–
Amplifier
–
+
+
0.75V
PWM
Comparator
+
–
VDD
100µA
+
Limit Buffer
Amplifier
–
Q4
R
Q
S
S
PWM Latch
Error
Amplifier
350mV
Lock-up
Amplifier
–
+
Positive
Feedback
Q1 Q2
Q3
3.5kΩ
DQ
C
Q
TC170
13 VDD
Output
11 A (
)
14 Output
B( )
12
Ground
1 Current Limit/
Soft-Start Adjust
Shutdown
Comparator
350
mV
6kΩ
16
Shutdown
NOTE: Outputs low in OFF state.
DS21395B-page 2
© 2002 Microchip Technology Inc.
Share Link: 