isl9211a Intersil Corporation, isl9211a Datasheet - Page 5

• Manufacturer Part Number: isl9211a
• Description: Charging System Safety Circuit
• Manufacturer: Intersil Corporation

Typical Operating Performance
FIGURE 4. CAPTURED WAVEFORMS WHEN THE INPUT
FIGURE 6. TRANSIENT WAVEFORMS WHEN INPUT STEPS
FIGURE 8. POWER-UP WAVEFORMS WHEN OUTPUT IS
GRADUALLY RISES TO THE INPUT
OVERVOLTAGE THRESHOLD
FROM 0V TO 9V
SHORT-CIRCUITED
FAULT (2V/DIV)
V
Fault(2V/div)
VIN(5V/div)
LOAD CURRENT (2A/DIV)
Load current (2A/div)
IN
(5V/DIV)
FAULT (2V/DIV)
TIME - 40µs/DIV
TIME - 40µs/DIV
OUT (2V/DIV)
TIME - 2s/DIV
V
OUT(2V/div)
Fault(2V/div)
VIN(5V/div)
IN
(5V/DIV)
5
FAULT (5V/DIV)
OUT (2V/DIV)
OUT(2V/div)
V
VIN(2V/div)
Fault(5V/div)
IN
(2V/DIV)
The test conditions for the Typical Operating Performance are: V
R
ILIM
= 24.9kΩ, R
ISL9211A
VB
= 200kΩ, Unless Otherwise Noted. (Continued)
FIGURE 5. TRANSIENT WHEN THE INPUT VOLTAGE STEPS
FIGURE 7. BATTERY OVERVOLTAGE PROTECTION. THE IC
FIGURE 9. ZOOMED-IN VIEW OF FIGURE 8
V
VIN(5V/div)
Load current (2A/div)
IN
FROM 6.5V TO 5.5V
IS LATCHED OFF AFTER 16 COUNTS OF
PROTECTION. VB VOLTAGE VARIES BETWEEN
4.3V TO 4.5V
FAULT (5V/DIV)
(5V/DIV)
OUT (2V/DIV)
V
FAULT (2V/DIV)
Fault(5V/div)
IN
OUT(2V/div)
VIN(2V/div)
(2V/DIV)
Fault(2V/div
TIME - 1ms/DIV
TIME - 4ms/DIV
TIME - 20s/DIV
LOAD CURRENT (2A/DIV)
OUT (1V/DIV)
OUT(1V/div)
FAULT (2V/DIV)
Fault(2V/div)
V
VIN(1V/div)
IN
IN
VB (1V/DIV)
VB(1V/div)
= 5V, T
(1V/DIV)
A
= +25°C,
April 2, 2009
FN6702.0