MC33341 Motorola, MC33341 Datasheet - Page 4

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

–4.0
–8.0
–12
280
240
200
160
120
4.0
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
40
80
4
–50
0
0
0
0
0
Figure 5. Closed–Loop Current Sensing Input A
Figure 3. Closed–Loop Voltage Sensing Input
V CC = 6.0 V
V O = 1.0 V
I O = 1.0 mA
Noninverting input path is active
V CC = 6.0 V
V O = 1.0 V
I O = 1.0 mA
T A = 25 C
for load low–side current sensing.
T A = 25 C
Threshold Change versus Temperature
0.2
–25
40
versus Current Threshold Adjust
versus Voltage Threshold Adjust
V Pin 2 , CURRENT THRESHOLD ADJUST (mV)
V Pin 6 , VOLTAGE THRESHOLD ADJUST (V)
0.4
V Pin 5
Figure 1. Voltage Sensing
T A , AMBIENT TEMPERATURE ( C)
80
0
V Pin 5
0.6
120
25
V Pin 6 –V Pin 5
0.8
V Pin 2 –V Pin 1
160
50
1.0
200
75
1.2
V CC = 6.0 V
Gnd
100
240
1.4
280
1.6
125
16
14
12
10
8.0
6.0
4.0
2.0
0
14
12
10
8.0
6.0
4.0
2.0
0
MC33341
–120
–160
–200
–240
–280
–120
–160
–200
–240
–260
–1.0
–2.0
–3.0
–40
–80
–40
–80
1.0
0
–50
0
0
0
0
Figure 6. Closed–Loop Current Sensing Input A
Figure 4. Closed–Loop Current Sense Input B
1 – Source High–Side and Load High–Side
2 – Source Return Low–Side
3 – Load Low–Side
Differential Amplifier is active for
source high–side and load high–side
current sensing. Both vertical axis are
expressed in millivolts down to V CC .
V Pin 5
Threshold Change versus Temperature
–25
40
40
versus Current Threshold Adjust
versus Current Threshold Adjust
V Pin 2 , CURRENT THRESHOLD ADJUST (mV)
V Pin 2 , CURRENT THRESHOLD ADJUST (V)
V Pin 2 –|V Pin 1 |
V Pin 6
Figure 2. Current Sensing
MOTOROLA ANALOG IC DEVICE DATA
T A , AMBIENT TEMPERATURE ( C)
80
80
0
Gnd
120
120
25
V Pin 1 –V Pin 6
160
160
50
Inverting Amplifier is
active for source return
low–side current sensing.
200
200
75
V CC
V CC = 6.0 V
V O = 1.0 V
I O = 1.0 mA
Pin 1 = V CC
V CC = 6.0 V
V O = 1.0 V
I O = 1.0 mA
V CC = 6.0 V
T A = 25 C
T A = 25 C
100
240
240
1
2
3
125
280
280
0
2.0
4.0
6.0
8.0
10
12
14
14
12
10
8.0
6.0
4.0
2.0
0