MLX83202 Datasheet, PDF (20/35 Pages) Melexis Microelectronic Systems – Automotive NFET pre-drivers

MLX83202/MLX83203
Automotive NFET pre-drivers
8.5 EEPROM programming
 The EEPROM data can be programmed during customer production testing by using a PTC-04, or by
the microcontroller via an SPI interface. The pre-driver is programmed with default settings per table
below.
 The EEPROM features single error correction and double error detection.
 Note: SPI_Address[6] == SPI_Address[7] == SPI_Address[5]
8.5.1 Memory map
SPI
Address[2:0]
ED7
ED6
ED5
ED4
ED3
ED2
ED1
ED0
0
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
1
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
2
DEAD_TIME[2:0]
VDSMON[2:0]
CPMODE Res.
3
VDS_BLANK_TIME[1:0] PWM_SPEED
Res.
CUR_GAIN[2:0].
Res.
4
VREG_OV
_BF_EN
VDS_
BF_EN
VDS_
COMP_EN
VGS_UV_C
OMP_EN
EN_TCP
EN_CP
Res.
Res.
5
SPI_EN
1
Res.
Res.
Res.
Res.
Res.
Res.
Table 10. Memory map EEPROM
Bit name
Driver configuration
DEAD_TIME[2:0]
VDSMON[2:0]
VDS_BLANK_TIME[1:0]
CUR_GAIN[2:0]
CPMODE
IC configuration
SPI_EN
VREG_OV_BF_EN
VDS_BF_EN
VDS_COMP_EN
VGS_UV_COMP_EN
PWM_SPEED
EN_CP
EN_TCP
OUT_RESERVE_RG
Description
Defines the DEAD TIME between the HS FET and LS FET of the same phase
Defines the detection threshold level of the Vds monitoring
Defines the duration of the Vds monitor blanking time after the on-transition of the FET
Defines the gain of the current sense amplifier
1: VBOOST voltage is regulated relative to VSUP.
0: VBOOST voltage is regulated relative to ground
When set, the SPI block is enabled.
When reset, no SPI possible.
(In SPI mode this value can only be programmed from 1 to 0, not from 0 to 1)
VREG Over voltage Bridge Feedback Enable
1: When VREG_OV=1  Bridge driver is SET in tri-state
0: When VREG_OV=1  No effect on Bridge driver.
VDS Bridge Feedback Enable
1: When VDS_ERR=1  Bridge driver is SET in tri-state
0: When VDS_ERR=1  No effect on Bridge driver.
1: VDS comparator enabled
0: VDS comparator disabled
1: VGS_UV comparator enabled
0: VGS_UV comparator disabled
1: PWM = FICOMF
0: PWM = FICOMS
1: enables boost charge pump
0: disables boost charge pump
1: enables trickle charge pump
0: disables trickle charge pump
Undefined
Table 11. EEPROM bits
Default
011
111
10
011
0
1
1
1
1
1
0
1
0
0
3901083203
Rev 2.2
Page 20 of 35
Prelim. Data Sheet
4 Dec 2013