U2403B 查看數據表（PDF） - Temic Semiconductors

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U2403B

Charge Timer

Temic Semiconductors 

U2403B

Charge System at Higher Voltage of 30 V

Charge systems with higher voltages than VSmax can be

realized with the additional expander circuitry, as shown

in figure 8. This circuit contains a simple temperature

monitoring function. When the temperature level is

reached, the transistor, T3, is switched on. If T3 is

switched on and there is current flow into Pin 5, normal

charge is terminated.

+

DC-Supply

30 V

–

+ Battery

NTC

R 11

R 10

96 11707

T3

BC212

–

R1

Ich

R2

mounted BC212

on

T1

heatsink T2

LED1

BD135

red

R5

R7

R6

TLHR5400

D1

green

TLHG5400

LED2

8

7

6

D2

R8

5

U2403B

C2

1

2

3

4

LED1 normal charge

LED2 trickle charge

R4

W W W W R1 = 1 k , R2 = 10 k , R3 = f(IC), R4 = f(time), R5 =10 k /0.5 W, R6= 1 k ,

R3

W W W R7 = 10 k , R8 = 47 k , R10 =10 k , R11 = f(temp.), D1 = 1N4148, D2 = BZX85C10,

m C1 = 100 F/6 V, C2 = 10 nF, C4 = 330 pF

C4

R11 = f(temp.) depends on number of cells

Figure 8. U2403B for higher supply voltage up to 30 V with integrated temperature monitoring

No of Cells

2

3

4

5

W R11

13 k

8.2 kW

6.2 kW

4.7 kW

NTC Value

25°C

40°C

50°C

6.8 kW

3.9 kW

2.8 kW

10 (12)

TELEFUNKEN Semiconductors

Rev. A1, 20-Mar-96

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