ISL78227 Datasheet, PDF (15/43 Pages) Intersil Corporation – 2-Phase Boost Controller with Integrated Drivers

ISL78227
Electrical Specifications Refer to Figure 3 on page 7 and Typical Application Schematics (page 8). Operating conditions unless
otherwise noted: V_IN = 12V, V_PVCC = 5.2V and V_VCC = 5.2V, T_A = -40°C to +125°C (Note 7). Typicals are at T_A = +25°C. Boldface limits apply across
the operating temperature range, -40°C to +125°C. (Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
MAX
(Note 6) TYP (Note 6) UNIT
Duty Cycle Conversion (FB accuracy)
0% duty cycle input, measure at the FB pin
0
V
25% duty cycle input, frequency = 400kHz, 0.600 0.625 0.650 V
measure at the FB pin
50% duty cycle input, frequency = 400kHz, 1.218 1.253 1.288 V
measure at the FB pin
60% duty cycle input, measure at the FB pin 1.45
1.49
1.53 V
TRACK PIN - ANALOG INPUT
Input Leakage Current
V_TRACK = 1.6V, leakage current into this pin -1.0
-0.6
-0.3 µA
to ground
TRACK Input Reference Voltage Range
0
1.6
V
TRACK Input Reference Voltage Accuracy
TRACK SS_DONE Detection Threshold
Measure at the FB pin, V_TRACK = 1.5V
Measure at the FB pin, V_TRACK = 0.5V
-4.0
-6.0
0.29
-0.5
1.8
0.30
4.0
%
6.0
%
0.31 V
OVER-TEMPERATURE PROTECTION
Over-Temperature Trip Point
160
°C
Over-Temperature Recovery Threshold
145
°C
NOTES:
6. Compliance to datasheet limits are assured by one or more methods: production test, characterization and/or design.
7. The IC is tested in conditions with minimum power dissipations in the IC meaning T_A ≈ T_J.
Submit Document Feedback ₁₅
FN8808.2
February 24, 2016