List of figures

L9524C

4/27

List of figures

Figure 1.

Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Figure 2.

Pin connection (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Figure 3.

Shunt sense versus transistor sense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Figure 4.

Control input signal in transistor mode (modes 3 to 6) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Figure 5.

Permanent switch on of glow plugs at first falling edge in transistor mode (modes 3 to 6) 14

Figure 6.

Control input signal in mode 2 for permanent switch on . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Figure 7.

Serial diagnostic interface protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Figure 8.

Timing diagram of advanced run-off control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Figure 9.

Output timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Figure 10.

Mode 1: relay mode, go/no-go diagnostic interface protocol . . . . . . . . . . . . . . . . . . . . . . . 22

Figure 11.

Mode 2: relay mode, serial diagnostic interface protocol . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Figure 12.

Mode 3: transistor mode, shunt sense, no power regulation . . . . . . . . . . . . . . . . . . . . . . . 23

Figure 13.

Mode 4: transistor mode, shunt sense, power regulation . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Figure 14.

Mode 5: transistor mode, transistor sense, no power regulation . . . . . . . . . . . . . . . . . . . . 24

Figure 15.

Mode 6: transistor mode, transistor sense, power regulation . . . . . . . . . . . . . . . . . . . . . . . 24

Figure 16.

SO24 mechanical data and package dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25