Rainbow Electronics MAX1541 - Manual (Page 7)

MAX1540/MAX1541
Dual Step-Down Controllers with Saturation
Protection, Dynamic Output, and Linear Regulator
_______________________________________________________________________________________ 7
ELECTRICAL CHARACTERISTICS (continued)
(V+ = 15V, V CC = V DD = ON1 = ON2 = 5V, SKIP = GND, T A = 0°C to +85°C, unless otherwise noted. Typical values are at T A = +25 °C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
High
V CC -
0.4V
Open 3.15 3.85
REF 1.65 2.35
Four-Level Input Logic Levels
TON, OVP/UVP,
LSAT, SKIP,
FBLANK
Low 0.5
V
Four-Level Logic Input Current
TON, OVP/UVP, LSAT, SKIP, FBLANK
forced to GND or V
CC
-3 +3 µA
ELECTRICAL CHARACTERISTICS
(V+ = 15V, V CC = V DD = ON1 = ON2 = 5V, SKIP = GND, T A = -40°C to +85°C, unless otherwise noted.) (Note 4)
PARAMETER SYMBOL CONDITIONS MIN MAX UNITS
INPUT SUPPLIES (Note 1)
MAX1540: battery voltage, V+ > V LDOOUT 5.5 28
V IN
MAX1541: battery voltage, V+ > V LDOOUT 2 28
V BIAS V CC, V DD (MAX1541) 4.5 5.5 Input Voltage Range
V LDOIN
MAX1541: LDO input supply,
V
LDOIN > V LDOOUT
4.5 28
V
FB1 and FB2 forced above the regulation
point, LSAT = GND
1.5
Quiescent Supply Current (V CC ) I CC
FB1 and FB2 forced above the regulation
point, ON1 or ON2 = V
CC , V LSAT > 0.5V
1.8
mA
Quiescent Supply Current
(V
DD , MAX1541 Only)
I DD
FB1 and FB2 forced above the regulation
point, ON1 or ON2 = V
CC
5 µA
MAX1540: FB1 and FB2 forced above the
regulation point, ON1 or ON2 = V
CC ,
V
LDOON
= V+ = 28V
150
Quiescent Supply Current (V+) I
V+
MAX1541: ON1 or ON2 = V CC , V LDOON =
V+ = 28V
40
µA
Quiescent Supply Current
(LDOIN, MAX1541 Only)
I LDOIN
FB1 and FB2 forced above the regulation
point, ON1 or ON2 = V
CC ,
V LDOON = V+ = 28V
110 µA
Standby Supply Current (V DD ) ON1 = ON2 = GND, V LDOON = V+ = 28V 5 µA
Standby Supply Current
(V
DD , MAX1541 Only)
ON1 = ON2 = GND, V LDOON = V+ = 28V 5 µA
MAX1540: ON1 = ON2 = GND, LDOON =
V+ = 28V, V
CC = 0 or 5V
105
Standby Supply Current (V+)
MAX1541: ON1 = ON2 = GND, LDOON =
V+ = 28V, V
CC = V DD = 0 or 5V
5
µA
Standby Supply Current
(LDOIN, MAX1541 Only)
ON1 = ON2 = GND, V LDOON = V+ = 28V 100 µA