MAX4959ELB+T Maxim Integrated Products, MAX4959ELB+T Datasheet - Page 4

• Manufacturer Part Number: MAX4959ELB+T
• Description: IC CTLR HI VOLTAGE OVP 10-UDFN
• Manufacturer: Maxim Integrated Products
• Type: Overvoltage Protection Controllerr

Specifications of MAX4959ELB+T

• Applications: PC's, PDA's
• Mounting Type: Surface Mount
• Package / Case: 10-µDFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: MAX4959ELB+T; MAX4959ELB+TTR

High-Voltage OVP with Battery Switchover
4
(V
OVLO
(V
_______________________________________________________________________________________
200
160
120
-40
13
11
80
40
-1
OVLO
9
7
5
3
1
0
= 22.2V and V
0
0
SUPPLY CURRENT vs. INPUT VOLTAGE
LOAD BECOMES
PRESENT
= 22.3V, V
LOW-POWER ADAPTER RESPONSE
.05
5
V
IN
0.1
UVLO
10
TIME (s)
UVLO
V
0.15
IN
= 10.1V, pFET = IRF7726)
(V)
15
DRAIN OF P1
V
= 10.1V, R1 = 887kΩ, R2 = 66.5kΩ, R3 = 54.9kΩ, all resistors 1%, OV
GATE1
0.2
20
0.25
25
0.3
(V
1.8
1.6
1.4
1.2
0.8
0.6
0.4
0.2
Typical Operating Characteristics (continued)
25
20
15
10
IN
-5
5
0
LOGIC-INPUT THRESHOLD vs. TEMPERATURE
2
1
0
6
5
4
3
2
1
0
VOLTAGE RANGE vs. INPUT VOLTAGE RANGE
-150
= 19V, V
-50
BATTERY SWITCHOVER WITH ADAPTER-
0
V
GATE1
-30
-100
V
TH-HI
5
GATE2-PULLUP
PLUGGED RESPONSE
-10
V
V
GATE2
TEMPERATURE ( C)
-50
TH-LO
10
10
TIME ( s)
V
IN
0
(V)
30
15
= 4.2V, R
50
50
20
70
PULLUP
CB
100
25
90
150
= 5k )
4.5
3.5
-1
-2
-3
-4
-5
5
4
3
2
1
0
5
4
V
OVERVOLTAGE AND UNDERVOLTAGE TRIP
-50
-50
REF
DD
SUPPLY CURRENT vs. TEMPERATURE
DIFFERENCE vs. TEMPERATURE
= UV
-30
-30
UV TRIP DIFF
OV TRIP DIFF
-10
-10
REF
(R
TEMPERATURE ( C)
TEMPERATURE ( C)
PULLUP
10
= 1.228V.)
10
30
30
= 1k )
50
50
70
70
90
90
110