AMIS39100AGA

AMIS-39100: Octal High Side Driver with Protection Data Sheet 1.0 General Description The AMIS-39100 is a general purpose IC with eight integrated high side (HS) output drivers. The device is designed to control the power of virtually any type of load in a 12V automotive environment, such as transistor gates, relays, LEDs etc. Each of the output drivers of the AMIS-39100 is able to drive up to 275mA continuously when connected to an inductive load of 300mH. Even higher driver output currents can be obtained as long as the total current of the device is limited. The integrated charge-pump of the AMIS-39100, which uses only one low cost external capacitor, avoids thermal runaways even if the battery voltage is low. The HS drivers withstand short to ground (even when AMIS-39100 has lost its ground connection), short to the battery and has over-current limitation. In case of a potential hazardous situation, the drivers are switched off and the diagnostic state of the HS drivers can be read out via serial peripheral interface (SPI). In case of a short to ground, the output driver is deactivated after a de-bounce time. The AMIS-39100 can be connected to a 3.3V or 5V microcontroller by means of a SPI interface. This SPI interface is used to control each of the output drivers individually (on or off) and to read the status of each individual output driver (read-back of possible error conditions). This allows the detection of error situations for each driver individually. Furthermore, the SPI interface can be used to readback the status of the built-in thermal shutdown protection. The AMIS-39100 has a low-power mode and excellent handling and system ESD characteristics. 2.0 Key Features • • • • • • • • • • • • Eight HS drivers Up to 830mA continuous current per driver pair (resistive load) Charge pump with one external capacitor Serial peripheral interface (SPI) Short circuit protection Diagnostic features Power-down mode Internal thermal shutdown 3.3V and 5V microcontroller compliant Excellent system ESD Automotive compliant SO28 package with low Rthja 3.0 Typical Applications • • • • • • Automotive dashboard Automotive load management Actuator control LED driver applications Relays and solenoids Industrial process control 4.0 Ordering Information Product Name AMIS39100AGA Package PSOP 300-28 (JEDEC MS-013) Temperature Range -40°C…105°C AMI Semiconductor – Jan. 07, M-20557-002 www.amis.com 1 AMIS-39100: Octal High Side Driver with Protection 5.0 Block Diagram VDDN 27 5 Power on Reset OUT1 VB1 Data Sheet 4 OUT1 Thermal shutdown OUT2 6 10 OUT2 VB2 DIN DOUT CLK WR 12 13 2 3 11 OUT4 SPI interface OUT3 9 OUT3 Diagnostic LOGIC Control OUT4 19 VB3 OUT5 Oscillator 18 OUT5 OUT6 17 Chargepump OUT7 20 24 OUT6 VB4 CAPA1 23 OUT7 Bandgap OUT8 25 OUT8 AMIS-39100 26 1 14 16 7 8 15 21 22 28 PC20070110.4 TEST2 PDB TEST1 TEST GND3 GND5 GND1 GND4 GND6 GND2 Figure 1: Block Diagram AMI Semiconductor – Jan. 07, M-20557-002 www.amis.com 2 AMIS-39100: Octal High Side Driver with Protection Data Sheet 6.0 Typical Application Diagram VBAT 5V-reg CVCC CVDDN CVB CAPA CCP VB1..4 10 19 24 VCC VDDN 27 17 5 DIN 12 DOUT 13 4 OUT1 Lload1 Cout1 Rload1 Microcontroller CLK 2 WR 3 PDB 26 AMIS-39100 6 9 11 18 20 23 25 87 OUT8 Lload8 Cout8 Rload8 1 14 16 28 22 21 15 GND TEST1..2 GND1..6 PC20070110.2 Figure 2: Typical Application Diagram 6.1 External Components It is important to properly decouple the power supplies of the chip with external capacitors that have good high frequency properties. The VB1, VB2, VB3, and VB4 pins are shorted on the PCB level. Also GND1, GND2, GND3, GND4, GND5, GND6, TEST, TEST1, and TEST2 are shorted on the PCB level. Table 1: External Components Component Function CVB Ccharge_pump C (2) out (2) Min. Value Max. Tol. [%] Units Decoupling capacitor; X7R Charge pump capacitor (1) 100 0.47 1 22 22 65 300 350 47 ± 20 nF nF nF EMC capacitor on connector Decoupling capacitors on OUT 1 to 8; 50V Decoupling capacitors; 50V Load resistance Load inductance at maximum current The capacitor must be placed close to the AMIS-39100 pins on the PCB. Both capacitors are optional and depend on the final application and board layout. Cout ± 20 ± 20 ± 10 nF nF Ω mH CVDD RLoad LLoad Notes: (1) (2) AMI Semiconductor – Jan. 07, M-20557-002 www.amis.com 3 AMIS-39100: Octal High Side Driver with Protection 7.0 Pin Description Data Sheet TEST1 CLK WR OUT1 VB1 OUT2 GND1 GND2 OUT3 VB2 OUT4 DIN DOUT TEST2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15 GND6 VDDN PDB OUT8 VB4 OUT7 GND5 GND4 OUT6 VB3 OUT5 CAPA1 TEST GND3 Figure 3: Pin Description of the AMIS-39100 AMIS-39100 PC20070110.1 Table 2: Pin Out Pin Name 1 TEST1 2 CLK 3 WR 4 OUT1 5 VB1 6 OUT2 7 GND1 8 GND2 9 OUT3 10 VB2 11 OUT4 12 DIN 13 DOUT 14 TEST2 15 GND3 16 TEST 17 CAPA1 18 OUT5 19 VB3 20 OUT6 21 GND4 22 GND5 23 OUT7 24 VB4 25 OUT8 26 PDB 27 VDDN 28 GND6 Description Connect to GND Schmitt trigger SPI CLK input Schmitt trigger SPI write enable input HS driver output Battery supply HS driver output Power ground and thermal dissipation path junction-to-PCB Power ground and thermal dissipation path junction-to-PCB HS driver output Battery supply HS driver output SPI input pin (Schmitt trigger or CMOS inverter) Digital three state output for SPI Connect to GND Power ground and thermal dissipation path junction-to-PCB Connect to GND Charge pump capacitor pin HS driver output Battery supply HS driver output Power ground and thermal dissipation path junction-to-PCB Power ground and thermal dissipation path junction-to-PCB HS driver output Battery supply HS driver output Schmitt trigger power-down input Digital supply Power ground and thermal dissipation path junction-to-PCB AMI Semiconductor – Jan. 07, M-20557-002 4 www.amis.com AMIS-39100: Octal High Side Driver with Protection Data Sheet 8.0 Electrical and Environmental Ratings 8.1 Absolute Maximum Ratings Stress levels above those listed in this paragraph may cause immediate and permanent device failure. It is not recommended that more than one of these conditions be applied simultaneously. Table 3: Absolute Maximum Ratings Symbol Description VDDN Power supply voltage DC battery supply on pins VB1 to VB4 load dump, VB Pulse 5b 400ms Iout_ON Iout_OFF I_OUT_VB Vcapa1 Vdig_in VESD VESD Tj Tmr Notes: (1) (2) (3) Min. GND - 0.3 Max. 6 Unit V GND - 0.3 -3000 -350 -700 0 -0.3 -4 -2 -750 -40 -40 35 350 350 3750 VB+16.5 VDDN+0.3 +4 +2 +750 175 105 V mA mA mA V V kV kV V °C °C Maximum output current OUTx pins The HS driver is switched on (1) Maximum output current OUTx pins The HS driver is switched off Maximum output current VB1, 2, 3, 4 pins DC voltage on pins capa1 Voltage on digital inputs CLK, PDB, WR, DIN (2) Pins that connect the application (pins VB1..4 and Out1..8) (2) All other pins (3) ESD according charged device model Junction temperature (T