l99mc6tr-lf STMicroelectronics, l99mc6tr-lf Datasheet - Page 13

• Manufacturer Part Number: l99mc6tr-lf
• Description: Configurable 6-channel Device
• Manufacturer: STMicroelectronics

L99MC6
2.2
2.3
Figure 5.
2.4
Drain Clamp
Voltage
(V
DRN_CL1-6)
= 35V)
GND
V
Standby mode
The standby mode of the L99MC6 is activated by SPI command (EN bit of CTRL 0 reset to
0, see
status registers are cleared and the control registers are reset to their default values.
In the standby mode the current consumption is 5 µA (typical value). A SPI command is
needed to switch the L99MC6 in normal mode.
Inductive loads
Each switch is built by a power DMOS transistor. For low-side configured outputs an internal
zener clamp from the drain to gate with a breakdown of 31 V minimum provides for fast turn-
off of inductive loads.
For high-side configured outputs, an internal zener clamp with a breakdown of -15 V
maximum provides for fast turn-off of inductive loads
The maximum clamping energy is specified in
Output voltage clamping
Diagnostic functions
All diagnostic functions (overload, open-load, temperature warning and thermal shutdown)
are internally filtered and the condition has to be valid for at least 32 µs (open-load: typ.
400 µs, respectively) before the corresponding status bit in the status registers are set. The
filters are used to improve the noise immunity of the device. Open-load and temperature
warning function are intended for information purpose and do not change the state of the
output drivers. On contrary, the overload and thermal shutdown condition disable the
corresponding driver (overload) or all drivers (thermal shutdown), respectively. Without
setting the overcurrent recovery bit in the input data register to logic high, the microcontroller
has to clear the overcurrent status bit to reactivate the corresponding driver. (All switches
have a corresponding overcurrent recovery bit) If this bit is set, the device automatically
switches-on the outputs again after a short recovery time. With this feature the device can
drive loads with start-up currents higher than the overcurrent limits (that is inrush current of
incandescent lamps, cold resistance of motors and heaters,
S
Output Current
Section 9.3.2: Register
Low Side Configuration
Drain Voltage
Doc ID 16523 Rev 1
description). The inputs and outputs are switched-off. The
Time
Source Clamp
Voltage
(V
SRC_CL1-3)
Chapter
GND
= -19V)
V
S
(Figure
10.
Figure
5).
Output Current
High Side Configuration
7).
Source Voltage
Description
Time
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