VN06-E STMICROELECTRONICS | Alldatasheet
Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 17
Technical content
Datasheet sections
- 1 Block diagram and pin description
- 2 Electrical specifications
- 2.1 Absolute maximum ratings
- 2.2 Thermal data
- 2.3 Electrical characteristics
- 3 Application information
- 3.1 Functional description
- 3.2 Protecting the device agaist load dump - te st pulse
- 3.3 Protecting the device against reverse battery
- 4 Package and packing information
- 4.1 ECOPACK® packages
- 4.2 PENTAWATT mechanical data
- 5 Revision history
Features
■ Maximum continuous output current(a) : 9A @ Tc= 85°C ■ 5V logic level compatible input ■ Thermal shutdown ■ Under voltage protection ■ Open drain diagnostic output ■ Inductive load fast demagnetization ■ Very low standby power dissipation
Description
The VN06 is a monolithic device made using STMicroelectronics Vertical Intelligent Power technology, intended for driving resistive or inductive loads with one side grounded. Built-in thermal shutdown protects the chip from over temperature and short circuit. The open Drain diagnostic output indicates: open load in off state and in on state, output shorted to V CC and overtemperature. Fast demagnetization of inductive loads is archieved by negative (-18V) load voltage at turn-off. Type V DSS RDS(on) In (1) 1. In= nominal current according to ISO definition for high side automotive switch. VCC VN06 60 V 0.18 Ω 1.9 A 26 V a. The maximum continuous output current is the current at Tc = 85 °C for a battery voltage of 13V which does not activate self protection. PENTAWATT Table 1. Device summary
1 Block diagram and pin description
Figure 1. Block diagram Figure 2. Configuration diagram (top view)
2 Electrical specifications
Figure 3. Current and voltage conventions
2.1 Absolute maximum ratings
program and other relevant quality document. Table 2. Absolute maximum ratings
2.2 Thermal data
2.3 Electrical characteristics
Values specified in this section are for VCC= 13V; -40°C<Tj<125°C, unless otherwise stated. Table 3. Thermal data Table 4. Power
- The nominal current is the current at Tc = 85°C for battery voltage of 13V which produces a voltage drop of 0.5V.
Table 5. Switching (V CC=13V)
Table 6. Logic inputs
- The VIH is internally clamped at 6V about. It is possible to connect this pin to an higher voltage via an external resistor
calculated to not exceed 10 mA at the input pin. Table 7. Protections and diagnostics
- I OL(off) = (VCC -VOL)/ROL.
- t 1(on): minimum open load duration which acctivates the status output
- t 1(off): minimum load recovery time which desactivates the status output
- t 2(off): minimum on time after thermal shut down which desactivates status output
- t povl tpol: ISO definition (see figure)
Figure 6. Switching time waveforms Table 8. Truth table
3 Application information
Figure 9. Typical application circuit with a schottky diode for reverse supply protection Figure 10. Typical application circuit with separate signal ground
3.1 Functional description
The device has a diagnostic output which indicates open load conditions in off state as well as in on state, output shorted to VCC and overtemperature. The truth table shows input, diagnostic and output voltage level in normal operation and in fault conditions. The output signals are processed by internal logic. The open load diagnostic output has a 5 ms filtering. The filter gives a continuous signal for the fault condition after an initial delay of about 5 ms. This means that a disconnection during normal operation, with a duration of less than 5 ms does not affect the status output. Equally, any re-connection of less than 5 ms during a disconnection duration does not affect the status output. No delay occur for the status to go low in case of overtemperature conditions. From the falling edge of the input signal the status output initially low in fault condition (over temperature or open load) will go back with a delay (tpovl)in case of overtemperature condition and a delay (tpol) in case of open load. These feature fully comply with International Standard Office (I.S.O.) requirement for automotive High Side Driver. To protect the device against short circuit and over current conditions, the thermal protection turns the integrated Power MOS off at a minimum junction temperature of 140 oC. When the temperature returns to 125 oC the switch is automatically turned on again. In short circuit the protection reacts with virtually no delay, the sensor being located in the region of the die where the heat is generated. Driving inductive loads, an internal function of the device ensures the fast demagnetization with a typical voltage (Vdemag) of -18V. This function allows to greatly reduce the power dissipation according to the formula: Pdem = 0.5 ² Lload ² (Iload)2 ² [(VCC+Vdemag)/Vdemag] ² f where f = switching frequency and Vdemag = demagnetization voltage Based on this formula it is possible to know the value of inductance and/or current to avoid a thermal shutdown. The maximum inductance which causes the chip temperature to reach the shutdown temperature in a specific thermal environment, is infact a function of the load current for a fixed VCC, Vdemag and f.
3.2 Protecting the device agaist load dump - test pulse 5
The device is able to withstand the test pulse No. 5 at level II (Vs = 46.5V) according to the ISO T/R 7637/1 without any external component. This means that all functions of the device are performed as designed after exposure to disturbance at level II. The VN03 is able to withstand the test pulse No.5 at level III adding an external resistor of 150 ohm between pin 1 and ground plus a filter capacitor of 1000 µF between pin 3 and ground (if R LOAD ≤ 20 Ω).
3.3 Protecting the device against reverse battery
The simplest way to protect the device against a continuous reverse battery voltage (-26V) is to insert a schottky diode between pin 1 (GND) and ground, as shown in the typical application circuit (Figure 9.). The consequences of the voltage drop across this diode are as follows:
- If the input is pulled to power GND, a negative voltage of -VF is seen by the device. (VIL, VIH thresholds and VSTAT are increased by VF with respect to power GND).
- The undervoltage shutdown level is increased by VF. If there is no need for the control unit to handle external analog signals referred to the power GND, the best approach is to connect the reference potential of the control unit to node [1] (see Figure 10.), which becomes the common signal GND for the whole control board avoiding shift of Vih, Vil and Vstat. This solution allows the use of a standard diode.
4 Package and packing information
4.1 ECOPACK ® packages
ECOPACK is an ST trademark. ECOPACK specifications are available at www.st.com.
4.2 PENTAWATT mechanical data
Figure 11. PENTAWATT package dimensions
Table 9. PENTAWATT mechanical data
5 Revision history
Table 10. Document revision history 06-Nov-2008 2 Document converted in corporate template. Added Section 4.1: ECOPACK® packages.