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MAX4959ELB+T
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
MAX4959/MAX4960
High-V
oltage OVP with Batter
y Switchover
10
Maxim Integrated
Chip Information
PROCESS: BiCMOS
CHARGE-CURRENT-
LIMIT RESISTOR
DISCHARGE
RESISTANCE
STORAGE
CAPACITOR
C
s
100pF
R
C
1M
Ω
R
D
1.5k
Ω
HIGH-
VOLTAGE
DC
SOURCE
DEVICE
UNDER
TEST
Figure 2. Human Body ESD Test Model
I
P
100%
90%
36.8%
t
RL
TIME
t
DL
CURRENT WAVEFORM
PEAK-TO-PEAK RINGING
(NOT DRAWN TO SCALE)
I
r
10%
0
0
AMPERES
Figure 3. Human Body Current Waveform
MAX4959/MAX4960
High-V
oltage OVP with Batter
y Switchover
11
Maxim Integrated
T
ypical Operating Cir
cuits
P1
CB
V
REF
GND
R1
R2
R3
N2
V
DD
1-CELL (4.2V) TO
4-CELL (16.8V)
RD1
N1
RU1
C1
D1
C2
RU2
P2
RD2
GA
TE2
GA
TE1
IN
UVLO
OVLO
UVS
OVS
AC ADAPTER
HOLD-UP
POWER SUPPL
Y
LOGIC
DC-DC
CONVERTER
BA
TTERY
CHARGER
V
SUPPL
Y
Figure 4. MAX4959 Typical Operating Circuit 1
MAX4959/MAX4960
High-V
oltage OVP with Batter
y Switchover
12
Maxim Integrated
T
ypical Operating Cir
cuits (continued)
CB
3.3V
GND
R1
R2
R3
N2
V
DD
1-CELL (4.2V) TO
4-CELL (16.8V)
N1
GA
TE2
GA
TE1
IN
UVLO
RD1
OVLO
UVS
OVS
AC ADAPTER
HOLD-UP
POWER SUPPL
Y
LOGIC
DC-DC
CONVERTER
SYSTEM LOAD
EN
V
REF
V
SUPPL
Y
28V
PROTECTED
CHARGER
Figure 5. MAX4959 Typical Operating Circuit 2
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
MAX4959ELB+T
Mfr. #:
Buy MAX4959ELB+T
Manufacturer:
Maxim Integrated
Description:
Current & Power Monitors & Regulators OVP w/Battery Switchover
Lifecycle:
New from this manufacturer.
Delivery:
DHL
FedEx
Ups
TNT
EMS
Payment:
T/T
Paypal
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MoneyGram
Western
Union
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