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UM1556

User manual

VIPower M0-5 and M0-5Enhanced

high-side drivers

Introduction

The aim of this document is to give the design engineer a comprehensive “tool kit” to better

understand the behavior of VIPower high side switches, allowing easier design and saving

time and money.

Today’s VIPower high side switches represent the 5th generation of smart power drivers (the

so called M0-5). In this latest generation of drivers, all the experience and know-how derived

from previous generations have been implemented in order to improve robustness, increase

functionality and raise package density while maintaining lower prices.

The complexity of a modern High Side Driver (HSD) is still relatively low compared to many

other logic ICs. However, the combination of digital logic functions with analog power

structures supplied by an unstabilized automotive battery system across a wide temperature

range is very challenging for such a device.

The M0-5 components today meet all the above criteria, providing an optimal

price/performance ratio by offering the highest performance and robustness at excellent

prices.

September 2013

Doc ID 023520 Rev 2

1/87

www.st.com

List of tables

List of tables

UM1556

Table 1.

Table 2.

Table 3.

Table 4.

Table 5.

Table 6.

Table 7.

Table 8.

Table 9.

Table 10.

Table 11.

Table 12.

Table 13.

Table 14.

Table 15.

Table 16.

Datasheet values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Reverse battery protection (of monolithic HSDs only) – comparison . . . . . . . . . . . . . . . . . 14

CS pin levels in off-state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Analogue driver-truth table (OFF-state) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Analogue driver-truth table (ON-state) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Paralleling bulbs – overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

VSENSE measurement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Analogue HSD diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Digital HSD diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

External clamping circuitry examples (1/2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

External clamping circuitry examples (2/2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

List of suggested bulb/driver combinations(1/4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

List of suggested bulb/driver combinations(2/4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

List of suggested bulb/driver combinations(3/4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

List of suggested bulb/driver combinations(4/4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

4/87 Doc ID 023520 Rev 2

UM1556

1 General items

General items

1.1 Application schematic (monolithic digital, monolithic and

hybrid analogue HSD)

Figure 1. Monolithic digital HSD - application schematic

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1. If status disable function is not required, ST_DIS pin should be left open or connected to ground through a

resistor (~10 kΩ). Direct connection to ground is not safe (ISO pulses clamped through ST_DIS pin can

damage the device).

2. Pull-up R5 is optional (for open load detection in off-state).

3. No pull-down resistors are necessary on IN and ST_DIS pins due to the internal pull-down structure.

Doc ID 023520 Rev 2

7/87

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