ISL6257HRZ Intersil, ISL6257HRZ Datasheet - Page 7

• Manufacturer Part Number: ISL6257HRZ
• Description: IC BATTERY CHARGER CTRLR 28-QFN
• Manufacturer: Intersil

Specifications of ISL6257HRZ

• Function: Charge Management
• Battery Type: Lithium-Ion (Li-Ion), Lithium-Polymer (Li-Pol)
• Voltage - Supply: 7 V ~ 25 V
• Operating Temperature: -10°C ~ 100°C
• Mounting Type: Surface Mount
• Package / Case: 28-VFQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Typical Operating Performance
FIGURE 13. ADAPTER INSERTION WITH A CHARGED
FIGURE 15. BATTERY CHARGE VOLTAGE AND CURRENT
13
12
11
10
9
0
ADAPTER REMOVAL
ADAPTER REMOVAL
BATTERY
FIGURE 11. ADAPTER REMOVAL
ISL6257 CHARGE CURVES
50
TIME (MINUTES)
100
7
150
V battery
I battery
SGATE-CSIP
SGATE-CSIP
SGATE-CSIP
2V/div
2V/div
2V/div
SYSTEM BUS
SYSTEM BUS
SYSTEM BUS
VOLTAGE
VOLTAGE
VOLTAGE
10V/div
10V/div
10V/div
BGATE-CSIP
BGATE-CSIP
BGATE-CSIP
2V/div
2V/div
2V/div
DCIN = 20V, 4S2P Li-Battery, T
INDUCTOR
INDUCTOR
INDUCTOR
CURRENT
CURRENT
CURRENT
2A/div
2A/div
2A/div
200
2.5
2.0
1.5
1.0
0.5
0.0
ISL6257
FIGURE 14. ADAPTER INSERTION WITH NO BATTERY AND A
100%
95%
90%
85%
80%
75%
70%
A
FIGURE 16. EFFICIENCY VS LOAD CURRENT
= +25°C, unless otherwise noted. (Continued)
0
ADAPTER INSERTION
ADAPTER INSERTION
FIGURE 12. ADAPTER INSERTION
2A SYSTEM LOAD
Efficiency vs load current
2
Load Current (Amps)
4
6
10Vin-8.4Vout
25Vin-8.4Vout
15Vin-12.6Vout
25Vin-12.6Vout
20Vin-16.8Vout
25Vin-16.8Vout
8
SGATE-CSIP
SGATE-CSIP
SGATE-CSIP
2V/div
2V/div
2V/div
January 17, 2007
SYSTEM BUS
SYSTEM BUS
SYSTEM BUS
VOLTAGE
VOLTAGE
VOLTAGE
10V/div
10V/div
10V/div
INDUCTOR
INDUCTOR
INDUCTOR
CURRENT
CURRENT
CURRENT
2A/div
2A/div
2A/div
BGATE-CSIP
BGATE-CSIP
BGATE-CSIP
2V/div
2V/div
2V/div
10
FN9288.2
12