Datasheet

L6738A Electrical specifications
Doc ID 18134 Rev 2 11/32
3 Electrical specifications
3.1 Absolute maximum ratings
3.2 Electrical characteristics
(V
CC
= 5 V to 12 V; T
j
= 0° to 70 ° C unless otherwise specified).
Table 4. Absolute maximum ratings
Symbol Parameter Value Unit
V
CC,
V
CCDR
to GND -0.3 to 15 V
V
BOOT
, V
UGATE
to GND
to PHASE
to GND, VCCDR = 12 V, t < 200 nsec.
-0.3 to 41
15
45
V
V
PHASE
to GND
to GND, VCCDR = 12 V, t < 200 nsec.
-5 to 26
-8 to 30
V
V
LGATE
to GND -0.3 to VCCDR + 0.3 V
EN
to GND, VCC < 7 V
to GND, VCC > 7 V
-0.3 to VCC + 0.3
-0.3 to 7
V
CSP, CSN to GND
(1)
1. Current sense network needs to be properly bias and loop closed.
-0.3 to VCC - 1.5 V
All other pins to GND -0.3 to 3.6 V
Table 5. Electrical characteristics
Symbol Parameter Test conditions Min. Typ. Max. Unit
Supply current and power-on
I
CC
VCC supply current
EN = HIGH 9 mA
EN = GND 8 mA
I
CCDR
VCCDR supply current
UGATE and LGATE = Open 2.6 mA
EN = GND
UGATE and LGATE = Open
0.3 mA
UVLO
VCC,
UVLO
VCCDR
Turn-ON threshold VCC, VCCDR rising 4.1 V
Hysteresis 0.2 V
Oscillator enable and soft-start
F
SW
Main oscillator accuracy OSC = open 180 200 220 kHz
k
OSC
Oscillator gain Current sink/source from OSC 10 kHz/µA
Tss Soft-start time OSC = open 4.5 5.12 5.7 msec
Tssdelay SS delay OSC = open, before SS 4.5 5.12 5.7 msec