ISL6446IAZ-TK Datasheet, PDF (8/19 Pages) Intersil Corporation – Dual (180° Out-of-Phase) PWM and Linear Controller

ISL6446
Electrical Specifications Operating Conditions Unless Otherwise Noted: V_IN = 12V, or V_CC = 5V ±10%, T_A = -40°C to +85°C. Typical
values are at +25°C. Boldface limits apply over the operating temperature range, -40°C to +85°C (Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
(Note 9)
TYP
MAX
(Note 9)
UNITS
OCSET Current Source
OCSET Current Source
LINEAR CONTROLLER
I_OCSET
I_OCSET
V_OCSET = 4.5V, T_A = +25°C
V_OCSET = 4.5V, T_A = +85°C
110
µA
140
µA
Drive Sink Current
LCFB Feedback Threshold
LCFB Input Leakage Current
Error Amplifier Transconductance
PGOOD
I_LCDR
V_LCFB
I_LCFB
gm
LCDR
T_A = +25°C
T_A = -40°C to +85°C
T_A = 0°C to +70°C
(Note 7)
V_LCFB = 0.6V, I_LCDR = 21mA (Note 7)
50
mA
0.595
V
0.570
0.620
V
0.580
0.610
V
80
nA
2
A/V
Power-Good Lower Threshold
PG_low_x LCFB = VCC, L_DO disabled
PGOOD for Ch1 and Ch2 only
88
93
97
%
Power-Good Higher Threshold
PG_hi_x LCFB = VCC, L_DO disabled
PGOOD for Ch1 and Ch2 only
105
110
115
%
Power-Good Lower Threshold
PG_low₃ L_DO enabled, PGOOD for L_DO;
Ch1 and Ch2 disabled; (Note 7)
72
%
PGOOD Delay
PGOOD Leakage Current
PGOOD Voltage Low
THERMAL
t_PGOOD
I_PGOOD
V_{PG_low}
F_SW = 1.4MHz (Note 7)
V_PULLUP = 5.5V
I_PGOOD = -4mA
46
ms
5
µA
0.5
V
Shutdown Temperature
(Note 8)
150
°C
Shutdown Hysteresis
(Note 8)
20
°C
NOTES:
7. Limits established by characterization.
8. Design guideline only; not production tested.
9. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established by characterization
and are not production tested.
8
FN7944.1
October 15, 2013