Rainbow Electronics MAX1835 - Manual (Page 3)

MAX1832–MAX1835
High-Efficiency Step-Up Converters with
Reverse Battery Protection in SOT23-6
_______________________________________________________________________________________ 3
Note 3: All units are 100% production tested at T
A
=+25°C. Limits over the operating temperature range are guaranteed by design
and not production tested.
Note 4: Supply current into OUT. This current correlates directly to the actual battery-supply current, but is reduced in value accord-
ing to the step-up ratio and efficiency.
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Reverse Battery Current into
OUT
V OUT = 0, V BATT = V SHDN = V LX = -3V 0 10 µA
T A = +25 °C 1.8 5.0
Quiescent Current into BATT
V OUT = +3.5V,
V FB = +1.3V T A = -40 °C to +85°C 6.0
µA
Shutdown Current into BATT V OUT = +3.5V, V BATT = +2V, V SHDN = 0 0.001 1 µA
Reverse Battery Current into
BATT
V OUT = 0, V BATT = V SHDN = V LX = -3V 0.002 10 µA
SHDN Logic Low V BATT = +1.5V to +5.5V 0.3 V
T A = +25 °C 1.185 1.228 1.271
SHDN Threshold Rising edge
T A = -40 °C to +85°C 1.170 1.286
V
SHDN Threshold Hysteresis 0.02 V
SHDN Input Bias Current V OUT = +5.5V, V SHDN = +5.5V, T A = +25 °C 13 100 nA
SHDN Reverse Battery Current V OUT = 0, V BATT = V SHDN = V LX = -3V 52 150 µA
T A = +25 °C 2.830 2.980 3.110
RST Threshold
MAX1833/
MAX1835,
falling edge
T A = -40 °C to +85°C 2.800 3.140
V
RST Voltage Low I RST = 1mA, V OUT = +2.5V 0.2 V
T A = +25 °C 0.1 100
RST Leakage Current V RST = +5.5V
T
A
= -40 °C to +85°C 1
nA
T A = +25 °C 1 100
LX Leakage Current V LX = +5.5V
T A = -40 °C to +85°C 100
nA
LX Reverse Battery Current V OUT = 0, V BATT = V SHDN = V LX = -3V 0.001 10 µA
Maximum Load Current I LOAD V BATT = +2V, V OUT = +3.3V 150 mA
Efficiency V BATT = +2V, V OUT = +3.3V, I LOAD = 40mA 90 %
ELECTRICAL CHARACTERISTICS (continued)
(V SHDN = +1.5V, V OUT = +3.3V, V BATT = +2V, GND = 0, T A = -40°C to +85°C. Typical values are at T A = +25°C, unless otherwise
noted.) (Note 3)