TCA 3727 Infineon Technologies, TCA 3727 Datasheet - Page 3

• Manufacturer Part Number: TCA 3727
• Manufacturer: Infineon Technologies

Specifications of TCA 3727

• Packages: P-DIP-20
• Ipeak: 2 x 1.0 A
• Inhibit: Y
• Iq (typ): 20.0 µA
• Mounting: THT
• Technology: Bipolar

Figure 2
Table 1
Pin No.
1, 2, 19, 20
(1, 2, 23, 24)
3
5, 6, 15, 16
(5, 6, 7, 8, 17,
18, 19, 20)
4
8 (10)
7, 10
(9, 12)
Data Sheet
1)
1)
1)
1)
Pin Configuration TCA 3727 G (top view)
Pin Definitions and Functions
Function
Digital control inputs IX0, IX1 for the magnitude of the current of the
particular phase. See
Input Phase 1; controls the current through phase winding 1. On
H-potential the phase current flows from Q11 to Q12, on L-potential in
the reverse direction.
Ground; all pins are connected internally.
Oscillator; works at approx. 25 kHz if this pin is wired to ground
across 2.2 nF.
Resistor
Push-pull outputs Q11, Q12 for phase 1 with integrated free-
wheeling diodes.
R
Phase 1
1
OSC
GND
GND
GND
GND
Q12
+
Q11
for sensing the current in phase 1.
10
V
11
R
S
1
1
2
3
4
5
6
7
8
9
10
11
12
Table
3
2.
IEP00898
24
23
21
17
14
13
22
20
19
18
16
15
R
GND
GND
GND
GND
Q21
Q22
Phase 2
Inhibit
+
21
20
2
V
L
Rev. 2.0, 2004-10-01
TCA 3727