UG067 Rev.2.00
Page 14 of 22
Aug 23, 2017
ISL68200DEMO1Z
FIGURE 25. STEP RESPONSE TO LOAD STEP AT PWM MODE,
V
OUT
= 1V, f
SW
= 400kHz, LOAD PROFILE: 0.25A TO
12.75A AT 25A/µs (CH1-V
OUT
, CH2-LOAD, CH3-PHASE)
FIGURE 26. STEP RESPONSE TO LOAD RELEASE AT PWM MODE,
V
OUT
= 1V, f
SW
= 400kHz, LOAD PROFILE: 0.25A TO
12.75A AT 25A/µs (CH1-V
OUT
, CH2-LOAD, CH3-PHASE)
FIGURE 27. OVERCURRENT PROTECTION
(CH1-V
OUT
, CH2-PGOOD, CH3-PHASE)
FIGURE 28. OVERVOLTAGE PROTECTION
(CH1-V
OUT
, CH2-PGOOD, CH3-LGATE)
FIGURE 29. OVER-TEMPERATURE PROTECTION AT 1A LOAD
(CH1-V
OUT
, CH2-LOAD, CH3-PHASE, CH4-NTC)
FIGURE 30. POWER-DOWN AT V
OUT
= 1V, 1A LOAD
(CH1-V
OU
T, CH2-PGOOD, CH3-PHASE, CH4-EN)
Measured Data
The following data was acquired using a ISL68200DEMO1Z board. (Continued)
5µs/DIV
20mV/DIV
10A/DIV
10V/DIV
5µs/DIV
20mV/DIV
10A/DIV
10V/DIV
OC RETRY
OC LATCH
10ms/DIV
50ms/DIV
500mV/DIV
10V/DIV
5V/DIV
500mV/DIV
10V/DIV
5V/DIV
5V/DIV
5V/DIV
100mV/DIV
100µs/DIV
10V/DIV
2V/DIV
5V/DIV
5mV/DIV
20ms/DIV
500mV/DIV
10V/DIV
5V/DIV
5V/DIV
200µs/DIV
