VN5E006ASP-E STMICROELECTRONICS | Alldatasheet
Document overview
- Manufacturer or author: STMICROELECTRONICS Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 38
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
- 2.4 Waveforms
- 2.5 Electrical characteristics curves
- 3 Application information
- 3.1 MCU I/Os protection
- 3.2 Load dump protection
- 3.3 Current sense and diagnostic
- 3.3.1 Short to VCC and off-state open-load detection
- 4 Package and PCB thermal data
- 4.1 PowerSO-10 thermal data
- 5 Package information
- 5.1 ECOPACK ® packages
- 5.2 PowerSO-10 mechanical data
- 5.3 Packing information
- 6 Order codes
- 7 Revision history
Features
- General – Very low standby current – 3.0 V CMOS compatible inputs – Optimized electromagnetic emissions – Very low electromagnetic susceptibility – Compliance with European directive 2002/95/EC – Very low current sense leakage
- Diagnostic functions – Proportional load current sense – High current sense precision for wide currents range – Diagnostic enable pin – Off-state open-load detection – Output short to V CC detection – Overload and short to ground (power limitation) indication – Thermal shutdown indication
- Protection – Inrush current active management by power limitation – Undervoltage shutdown – Overvoltage clamp – Load current limitation – Self limiting of fast thermal transients – Protection against loss of ground and loss of V CC – Overtemperature shutdown with auto restart (thermal shutdown) – Reverse battery protected with self switch of the Power MOSFET – Electrostatic discharge protection
Applications
- All types of resistive, inductive and capacitive loads
Description
The VN5E006ASP-E is a single channel high-side driver manufactured using ST proprietary VIPower ® M0-5 technology and housed in PowerSO-10 package. The device is designed to drive 12 V automotive grounded loads delivering protection, diagnostics. It also implements a 3 V and 5 V CMOS-compatible interface for use with any microcontroller. The device integrates advanced protective functions such as load current limitation, inrush and overload active management by power limitation, overtemperature shut-off with auto- restart and overvoltage active clamp. A dedicated analog current sense pin is associated with every output channel providing enhanced diagnostic functions including fast detection of overload and short-circuit to ground through power limitation indication, over-temperature indication, short- circuit to V CC diagnosis and on-state and off-state open-load detection. The current sensing and diagnostic feedback of the whole device can be disabled by pulling the DE pin low to share the external sense resistor with similar devices. Max transient supply voltage V CC 41 V Operating voltage range V CC 4.5 to 28 V Max on-state resistance (per ch.) R ON 6 mΩ Current limitation (typ) I LIMH 90 A Off-state supply current I S 2 µA(1) 1. Typical value with all loads connected. PowerSO-10 ("1($'5
Table 6. Switching (V
1 Block diagram and pin description
Figure 1. Block diagram Table 1. Pin function SENSE Analog current sense pin, delivers a current proportional to the load current. DE Active high diagnostic enable pin.
Figure 2. Configuration diagram (top view) Table 2. Suggested connections for unused and not connected pins
2 Electrical specifications
Figure 3. Current and voltage conventions
2.1 Absolute maximum ratings
Table 3. Absolute maximum ratings
2.2 Thermal data
Table 3. Absolute maximum ratings (continued) Table 4. Thermal data
2.3 Electrical characteristics
8 V < VCC < 28 V; -40 °C < Tj < 150 °C, unless otherwise specified. Table 5. Power section
- PowerMOS leakage included.
Table 6. Switching (VCC = 13 V; Tj = 25 °C)
Table 7. Logic inputs Table 8. Protections and diagnostic(1)
- To ensure long term reliability under heavy overload or short circuit conditions, protection and related
abnormal conditions, this software must limit the duration and number of activation cycles.
5 V < VCC < 24 V 127
Table 9. Current sense (8 V < VCC < 18 V)
- Parameter guaranteed by design; it is not tested.
- Fault conditions include: power limitation , overtemperature and open load OFF state detection.
Table 10. Open-load detection (8 V < VCC < 18 V, VDE = 5 V) Table 9. Current sense (8 V < VCC < 18 V) (continued)
Table 11. Truth table
- If the V DE is low, the SENSE output is at a high impedance, its potential depends on leakage currents and
Table 12. Electrical transient requirements (part 1)
- The above test levels must be considered referred to V CC = 13.5V except for pulse 5b.
- Valid in case of external load dump clamp: 40V maximum referred to ground. The protection strategy
along the time and to transfer a part of it to the load. Table 13. Electrical transient requirements (part 2)
- The above test levels must be considered referred to V CC = 13.5V except for pulse 5b.
- Valid in case of external load dump clamp: 40V maximum referred to ground. The protection strategy
along the time and to transfer a part of it to the load.
- Suppressed load dump (pulse 5b) is withstood wi th a minimum load connected as specified in Table 3.:
Table 14. Electrical transient requirements (part 3) C All functions of the device are performed as designed after exposure to disturbance.
2.4 Waveforms
Figure 11. Normal operation Figure 12. Overload or short to GND
2.5 Electrical characteristics curves
Figure 17. Off-state output current Figure 18. High level input current Figure 19. Input clamp voltage Figure 20. Input high level Figure 21. Input low level Figure 22. Input hysteresis voltage
3 Application information
Figure 32. Application schematic
3.1 MCU I/Os protection
latch-up limit of the microcontroller I/Os.
3.2 Load dump protection
that are greater than the ones shown in the ISO 7637-2: 2004(E) table.
3.3 Current sense and diagnostic
- Current mirror of the load current in normal operation, delivering a current proportional to the load one according to a known ratio KX. The current ISENSE can be easily converted to a voltage VSENSE by means of an external resistor RSENSE. Linearity between IOUT and VSENSE is ensured up to 5V minimum (see parameter VSENSE in Table 9: Current sense (8 V < VCC < 18 V)). The current sense accuracy depends on the output current (refer to current sense electrical characteristics Table 9: Current sense (8 V < V CC < 18 V)).
- Diagnostic flag in fault conditions, delivering a fixed voltage VSENSEH up to a maximum current ISENSEH in case of the following fault conditions (refer to Truth table): – Power limitation activation – Overtemperature – Short to V CC in OFF-state – Open-load in OFF-state with additional external components. A logic level low on DE pin sets at the same time all the current sense pins of the device in a high impedance state, thus disabling the current monitoring and diagnostic detection. This feature allows multiplexing of the microcontroller analog inputs by sharing of sense resistance and ADC line among different devices.
Figure 33. Current sense and diagnostics
3.3.1 Short to V CC and off-state open-load detection
A short circuit between VCC and output is indicated by the relevant current sense pin set to VSENSEH during the device off state. Small or no current is delivered by the current sense during the on state depending on the nature of the short circuit. OFF-state open-load with external circuitry Detection of an open-load in off mode requires an external pull-up resistor R PU connecting the output to a positive supply voltage VPU. It is preferable VPU to be switched off during the module standby mode in order to avoid the overall standby current consumption to increase in normal conditions, i.e. when load is connected. An external pull down resistor R PD connected between output and GND is mandatory to avoid misdetection in case of floating outputs in off-state (see Figure 33: Current sense and diagnostics). RPD must be selected in order to ensure VOUT < VOLmin unless pulled up by the external circuitry: RPD ≤ 22 KΩ is recommended. For proper open load detection in off state, the external pull-up resistor must be selected according to the following formula: For the values of VOLmin, VOLmax, IL(off2)r and IL(off2)f see Table 10: Open-load detection (8 V < VCC < 18 V, VDE = 5 V). VOUT Pull-up_OFF RPD IL(off2)f⋅ VOLmin< 2V== VOUT Pull-up_ON RPD VPU RPU– RPD IL(off2)r⋅⋅ ⋅
Figure 34. Maximum turn-off current versus inductance Note: Values are generated with R L = 0 Ω. must not exceed the temperature specified above for curves A and B.
4 Package and PCB thermal data
4.1 PowerSO-10 thermal data
Figure 35. PowerSO-10 PC board
- Layout condition of R th and Zth measurements (Board finish thickness 1.6 mm +/- 10%; Board double layer;
Figure 36. Rthj-amb vs PCB copper area in open box free air condition (one channel
Table 15. Thermal parameter
5 Package information
5.1 ECOPACK ® packages
In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK® packages, depending on their level of environmental compliance. ECOPACK® specifications, grade definitions and product status are available at: www.st.com. ECOPACK® is an ST trademark.
5.2 PowerSO-10 mechanical data
Figure 39. PowerSO-10 package dimensions
Table 16. PowerSO-10 mechanical data
- Resin protrusions not included (max value: 0.15 mm per side).
5.3 Packing information
Figure 40. PowerSO-10 suggested pad layout and tube shipment (no suffix) Figure 41. PowerSO-10 tape and reel shipment (suffix “TR”)
6 Order codes
Table 17. Device summary
7 Revision history
Table 18. Document revision history 01-Sep-2010 1 Internal release. Updated document with diagnostic enable pin insertion.
19-Sep-2013 7 Updated Disclaimer. Table 18. Document revision history (continued)