Rainbow Electronics MAX16040 User Manual
Page 2
MAX16033–MAX16040
Low-Power Battery Backup
Circuits in Small µDFN Packages
2
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ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
CC
= 2.25V to 5.5V, V
BATT
= 3V, RESET not asserted, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
A
=
+25°C.) (Note 1)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Terminal Voltages (with respect to GND)
V
CC,
BATT, OUT .......................................................-0.3V to +6V
RESET (open drain), PFO (open drain) ....................-0.3V to +6V
RESET (push-pull), PFO (push-pull), BATTON, RESETIN, WDI
MR, CEIN, CEOUT, PFI ............................-0.3V to (V
OUT
+ 0.3V)
Input Current
V
CC
Peak..............................................................................1A
V
CC
Continuous ............................................................250mA
BATT Peak ....................................................................250mA
BATT Continuous ............................................................40mA
GND ................................................................................75mA
Output Current
OUT ..................................Short-Circuit Protected for up to 5s
RESET, BATTON .............................................................20mA
Continuous Power Dissipation (T
A
= +70°C)
8-Pin µDFN (derate 4.8mW/°C above +70°C) ..........380.6mW
10-Pin µDFN (derate 5mW/°C above +70°C) ...........402.8mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Operating Voltage Range
V
CC
, V
BATT
No load (Note 2)
0
5.5
V
V
CC
= 2.8V
13
30
V
CC
= 3.6V
16
35
Supply Current
I
CC
No load, V
CC
> V
TH
V
CC
= 5.5V
22
50
µA
T
A
= +25°C
1
Supply Current in Battery
Backup Mode
V
BATT
= 2.8V,
V
CC
= 0V,
excluding I
OUT
T
A
= -40°C to +85°C
2
µA
T
A
= +25°C
-0.1
+0.02
BATT Standby Current (Note 3)
I
BATT
(V
BATT
+ 0.2V) < V
CC
< 5.5V
T
A
= -40°C to +85°C
-0.3
+0.02
µA
V
CC
= 4.75V, V
CC
> V
TH
, I
OUT
= 150mA
3.1
V
CC
= 3.15V, V
CC
> V
TH
, I
OUT
= 65mA
3.7
V
CC
to OUT On-Resistance
R
ON
V
CC
= 2.5V, V
CC
> V
TH
, I
OUT
= 25mA
4.6
Ω
V
BATT
= 4.50V, V
CC
= 0V, I
OUT
= 20mA
V
BATT
- 0.2
V
BATT
= 3.15V, V
CC
= 0V, I
OUT
= 10mA
V
BATT
- 0.15
Output Voltage in Battery
Backup Mode
V
OUT
V
BATT
= 2.5V, V
CC
= 0V, I
OUT
= 5mA
V
BATT
- 0.15
V
V
CC
rising
0
Battery-Switchover Threshold
V
SW
V
CC
- V
BATT
,
V
CC
< V
TH
V
CC
falling
-40
mV