l99dz80ep STMicroelectronics, l99dz80ep Datasheet - Page 8

• Manufacturer Part Number: l99dz80ep
• Description: Door Actuator Driver
• Manufacturer: STMicroelectronics

Block diagram and pin description
8/68
Table 2.
26, 31, 32
46, 51, 52
23, 36, 37
48, 49, 50
2, 3, 45,
17, 18,
11, 12,
19, 20,
27, 28,
57, 58
59, 60
21, 22
29, 30
24, 25
Pin
17
56
55
40
34
35
41
38
33
Pin definitions and functions
Symbol
OUT11
SGND
GND
GND
OUT1
OUT2
OUT3
OUT4
OUT5
OUT6
CSN
CLK
VS
VS
DIR
DO
CM
DI
1
2
1
2
Ground: reference potential. GND1 and GND2 are internally connected.
GND1 supplies OUT1-3, GND2 supplies OUT4-6
Important: For the capability of driving the full current at the outputs, all
pins of GND must be externally connected!
Signal Ground: this pin is shared with GND2 pin
Power supply voltage for power stage outputs (external reverse protection
required): for this input a ceramic capacitor as close as possible to GND
is recommended. VS1 supplies OUT1-3, OUT7-11 and the internal VS
supply, VS2 supplies OUT4-6
Important: For the capability of driving the full current at the outputs all
pins of VS must be externally connected!
High-side-driver output 11: the output is built by a high-side switch and is
intended for resistive loads, hence the internal reverse diode from GND to
the output is missing. For ESD reason a diode to GND is present but the
energy which can be dissipated is limited. The High-side driver is a power
DMOS transistor with an internal parasitic reverse diode from the output
to VS (bulk-drain-diode). The output is overcurrent and open load
protected.
Important: For the capability of driving the full current at the outputs all
pins of OUT11 must be externally connected!
Half-bridge outputs 1,2,3,4,5,6: the output is built by a high side and a low
side switch, which are internally connected. The output stage of both
switches is a power DMOS transistor. Each driver has an internal
parasitic reverse diode (bulk-drain-diode: high side driver from output to
VS, low side driver from GND to output). This output is over current and
open load protected.
Serial data output: the diagnosis data is available via the SPI and this
3-state-output. The output remains in 3-state, if the chip is not selected by
the input CSN (CSN = high).
Current monitor output: depending on the selected multiplexer bits of the
Control Register this output sources an image of the instant current
through the corresponding high side driver with a fixed ratio.
Chip-Select-Not input: this input is low active and requires CMOS logic
levels. The serial data transfer between the device and the micro
controller is enabled by pulling the input CSN to low level.
Serial data input: the input requires CMOS logic levels and receives serial
data from the microcontroller. The data is a 24 bit control word and the
most significant bit (MSB, bit 23) is transferred first.
Serial clock input: this input controls the internal shift register of the SPI
and requires CMOS logic levels.
Direction Input: this input controls the H-Bridge Drivers
Doc ID 18260 Rev 4
Function
L99DZ80EP