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4
FN6399.0
March 21, 2007
Typical Operating Performance
The test conditions for the Typical Operating Performance are: V
IN
= 5V, T
A
= +25°C,
R
ILIM
= 25.5k
Ω
, R
VB
= 200k
Ω
, Unless Otherwise Noted.
FIGURE 2. CAPTURED WAVEFORMS FOR POWER-UP. THE
OUTPUT IS LOADED WITH A 10
Ω
RESISTOR
FIGURE 3. CAPTURED WAVEFORMS WHEN THE INPUT
VOLTAGE STEPS FROM 6.5V TO 10.5V
FIGURE 4. CAPTURED WAVEFORMS WHEN THE INPUT
GRADUALLY RISES TO THE INPUT
OVERVOLTAGE THRESHOLD
FIGURE 5. TRANSIENT WHEN THE INPUT VOLTAGE STEPS
FROM 7.5V TO 6.5V
FIGURE 6. TRANSIENT WAVEFORMS WHEN INPUT STEPS
FROM 0V TO 9V
FIGURE 7. BATTERY OVERVOLTAGE PROTECTION. THE IC
IS LATCHED OFF AFTER 16 COUNTS OF
PROTECTION. VB VOLTAGE VARIES BETWEEN
4.3V TO 4.5V
VIN (1V/div)
(1V/DIV)
OUT (1V/div)
OUT (1V/DIV)
Load Current
(200mA/div)
Time: 5ms/div
TIME: 5ms/DIV
VIN (2V/div)
(2V/DIV)
OUT (2V/div)
OUT (2V/DIV)
WRN (5V/div)
Time: 2
μ
s/div
VIN (2V/div)
(2V/DIV)
Time: 200ms/div
TIME: 200ms/DIV
OUT (2V/DIV)
WRN (5V/div)
VIN (2V/div)
(2V/DIV)
Time: 5ms/div
TIME: 5ms/DIV
OUT (2V/div)
OUT (2V/DIV)
WRN (5V/div)
WRN (5V/DIV)
VIN (2V/div)
(2V/DIV)
OUT (2V/div)
OUT (2V/DIV)
Time: 500
μ
s/div
WRN (5V/div)
WRN (5V/DIV)
ILIM (1V/div)
(2V/DIV)
VIN (1V/div)
Time: 20s/div
TIME: 20s/DIV
OUT (1V/div)
OUT (1V/DIV)
WRN (5V/div)
WRN (5V/DIV)
VB (1V/div)
(1V/DIV)
ISL9212B