MC33341 Motorola, MC33341 Datasheet - Page 16

• Manufacturer Part Number: MC33341
• Description: POWER SUPPLY BATTERY CHARGER REGULATION CONTROL CIRCUIT
• Manufacturer: Motorola

Figure 23 shows the MC33341 configured as a source high–side constant–voltage constant–current regulator. The regulator is
designed for an output voltage of 10 V at 1.0 A. Figure 24 shows the regulator’s output characteristics as the load is varied.
Source return low–side, load high–side, and load low–side configurations will each exhibit a nearly identical load regulation
characteristic. A heatsink is required for the MTP2955 series pass element.
16
12 V to 16 V
Ground
Input
Input
10
Figure 23. 10 V/1.0 A Constant–Voltage Constant–Current Regulator
0.2
3.0 k
8.0
6.0
4.0
2.0
10
0
1.2 V
MTP2955
0
8
1
R
R
R
Differential Amp
Disable Logic
Differential Amp
Inverting Amp
Figure 24. Output Load Regulation
R
0.2
R
R
I O , OUTPUT LOAD CURRENT (A)
V CC
V CC
0.4 V
7
2
MC33341
0 4
V CC
V CC
1.2 V
V sen
I sen
V th
I th
0.2 V
V CC
0.6
V
I
6
3
V CC
Transconductance
V CC
0.01
0.2 V 0.4 V 1.2 V
Amp
0.8
Reference
V CC
V CC
MOTOROLA ANALOG IC DEVICE DATA
5
4
1.0
82.5 k
11.1 k
10
Variable
Resistive
Load
Output
10 V/1.0 A
Output
Ground