DRV8702D-Q1 Datasheet, PDF (11/66 Pages) Texas Instruments – Automotive Half-Bridge Gate Driver

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6.6 SPI Timing Requirements
t_(CLK)
t_(CLKH)
t_(CLKL)
t_su(SDI)
t_h(SDI)
t_h(SDO)
t_su(SCS)
t_h(SCS)
t_{(HI_SCS)}
Minimum SPI clock period
Clock high time
Clock low time
SDI input data setup time
SDI input data hold time
SDO output hold time
SCS setup time
SCS hold time
SCS minimum high time before SCS active low
DRV8702D-Q1, DRV8703D-Q1
SLVSDX8 – MARCH 2017
MIN
NOM
MAX UNIT
100
ms
50
ns
50
ns
20
ns
30
ns
40
ns
50
ns
50
ns
400
ns
6.7 Switching Characteristics
Over recommended operating conditions unless otherwise noted
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
POWER SUPPLIES (VM, AVDD, DVDD)
t_(SLEEP)
Sleep time
t_(wu)
Wake-up time
t_on
Turnon time
CHARGE PUMP (VCP, CPH, CPL)
nSLEEP = low to sleep mode
nSLEEP = high to output change
VM > UVLO2 to output transition
100
µs
1
ms
1
ms
f_S(VCP)
Charge-pump switching frequency VM > UVLO2
CONTROL INPUTS (IN1, IN2, nSLEEP, MODE, nSCS, SCLK, SDI)
200
400
700 kHz
t_pd
Propagation delay
IN1, IN2 or PH, EN to GH or GL
FET GATE DRIVERS (GH, GH, SH, SH, GL, GL)
500
ns
t_(DEAD)
Output dead time (DRV8702D-Q1)
Observed t_(DEAD) depends on
IDRIVE setting
240
ns
TDEAD = 2’b00; Observed t_(DEAD)
depends on IDRIVE setting
120
t_(DEAD)
Output dead time (DRV8703D-Q1)
TDEAD = 2’b01; Observed t_(DEAD)
depends on IDRIVE setting
TDEAD = 2’b10; Observed t_(DEAD)
depends on IDRIVE setting
240
ns
480
TDEAD = 2’b11; Observed t_(DEAD)
depends on IDRIVE setting
960
t_(DRIVE)
Gate drive time
CURRENT SHUNT AMPLIFIER AND PWM CURRENT CONTROL (SP, SN, SO, VREF)
2.5
µs
V_SP = V_SN = GND to V_SP = 240 mV,
V_SN = GND, A_V= 10; C_(SO) = 200 pF
t_S
Settling time to ±1%⁽¹⁾
V_SP = V_SN = GND to V_SP = 120 mV,
V_SN = GND, A_V= 20; C_(SO) = 200 pF
V_SP = V_SN = GND to V_SP = 60 mV,
V_SN = GND, A_V= 40; C_(SO) = 200 pF
V_SP = V_SN = GND to V_SP = 30 mV,
V_SN = GND, A_V= 80; C_(SO) = 200 pF
t_off
PWM off-time (DRV8702D-Q1)
TOFF = 00
0.5
1
µs
2
4
25
µs
25
TOFF = 01
t_off
PWM off-time (DRV8703D-Q1)
TOFF = 10
50
µs
100
TOFF = 11
200
t_(BLANK)
PWM blanking time
2
µs
(1) Ensured by design
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