L99MC6 Datasheet PDF - STMicroelectronics

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L99MC6
STMicroelectronics

Part Number L99MC6
Description Configurable 6-channel device
Page 30 Pages


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L99MC6
Configurable 6-channel device
Features
3 independently self configuring high-/low-side
channels
3 low-side channels
RON = 0.7 Ω (typ) at Tj = 25 °C
Current limit of each output at min. 0.6 A
PWM direct mode
Bulb mode with recovery mode
LED mode with slew rate control
Bridge mode with crosscurrent protection
SPI interface for data communication
Temperature warning
All outputs overtemperature protected
All outputs short-circuit protected
Configurable open-load detection in off mode
VCC supply voltage 3.0 V to 5.25 V
Very low current consumption in standby mode
5 µA (typ)
Internal clamp diodes
HS switches operate down to 3 V crank voltage
Applications
Relay driver
LED driver
Motor driver
Mirror adjustment
PowerSSO-16
Description
The L99MC6 IC is a highly flexible monolithic
medium current output driver that incorporates 3
dedicated low-side outputs (channels 4 to 6) and
3 independently self configuring outputs
(channels 1 to 3) that can be used as either low-
side or high-side drivers in any combination. The
L99MC6 can control inductive loads,
incandescent bulbs or LEDs.
The L99MC6 can be used in a half bridge
configuration with crosscurrent protection.
The channel 2 can be controlled directly via the
IN/PWM pin for PWM applications. The IN/PWM
signal can be applied to any other output.
The integrated 16-bit standard serial peripheral
interface (SPI) controls all outputs and provides
diagnostic information: normal operation, open-
load in off-state, overcurrent, temperature
warning, overtemperature.
Table 1. Device summary
Package
PowerSSO-16
Order codes
Part number (tube)
Part number (tape & reel)
L99MC6-LF
L99MC6TR-LF
November 2009
Doc ID 16523 Rev 1
1/55
www.st.com
1
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Contents
Contents
L99MC6
1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.1 Application diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.2 Block diagram and pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.1 Dual power supply: VS and VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.1.1 Channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.2 Standby mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.3 Inductive loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.4 Diagnostic functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.4.1 Direct input IN/PWM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.4.2 Temperature warning and thermal shutdown . . . . . . . . . . . . . . . . . . . . . 14
2.4.3 Open-load detection in off-state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.4.4 Overload detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.5 Bridge mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.6 LED mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.7 Bulb mode (programmable soft start function to drive loads with higher
inrush current) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4 ESD protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.1 Temperature warning and thermal shutdown . . . . . . . . . . . . . . . . . . . . . . 19
6 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
6.1 Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
6.2 Undervoltage detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
6.3 Channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
7 SPI electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
7.1 DC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
2/55 Doc ID 16523 Rev 1
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L99MC6
Contents
7.2 AC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
7.3 Dynamic characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
7.4 SPI timing parameter definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
8 Functional description of the SPI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
8.1 Signal description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
8.1.1 Serial clock (SCK) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
8.1.2 Serial data input (SDI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
8.1.3 Serial data output (SDO) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
8.1.4 Chip select not (CSN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
8.2 SPI communication flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
8.2.1 General description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
8.2.2 Command byte . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
8.2.3 Global status register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
8.3 Write operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
8.4 Read operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
8.5 Read and Clear Status operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
8.6 Read Device Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
9 SPI control and status register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
9.1 RAM memory map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
9.2 ROM memory map (access with OC0 and OC1 set to ‘1’) . . . . . . . . . . . . 34
9.3 Control and status registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
9.3.1 Channel configuration decoding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
9.3.2 Register description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
9.4 Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
9.4.1
9.4.2
9.4.3
Example 1:Switch on channel 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Example 2: Bridge mode configuration . . . . . . . . . . . . . . . . . . . . . . . . . 38
Example 3: Open-load detection in off-state in bridge configuration . . . 40
10 Maximum demagnetization energy . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
11 Application examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
12 Package and PCB thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
12.1 PowerSSO-16 thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Doc ID 16523 Rev 1
3/55
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Contents
L99MC6
13 Package and packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
13.1 ECOPACK® . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
13.2 PowerSSO-16 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
13.3 Packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Appendix A Acronyms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
4/55
Doc ID 16523 Rev 1
Free Datasheet http://www.datasheet4u.com/



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