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maximum ratings (note 1 and 2)
rating symbol value unit
power supply input voltage vcc 40 v
switch output voltage range vo(switch) −2.0 to + vin v
voltage feedback and compensation input voltage range vfb, vcomp −1.0 to + 7.0 v
power dissipation
case 314a, 314b and 314d (ta = +25°c) pd internally limited w
thermal resistance, junction−to−ambient ja 65 °c/w
thermal resistance, junction−to−case jc 5.0 °c/w
case 936a (d2pak) (ta = +25°c) pd internally limited w
thermal resistance, junction−to−ambient ja 70 °c/w
thermal resistance, junction−to−case jc 5.0 °c/w
operating junction temperature tj +150 °c
operating ambient temperature (note 3)
mc34167
mc33167
ta
0 to + 70
− 40 to + 85
°c
storage temperature range tstg − 65 to +150 °c
maximum ratings are those values beyond which device damage can occur. maximum ratings applied to the device are individual stress limit
values (not normal operating conditions) and are not valid simultaneously. if these limits are exceeded, device functional operation is not implied,
damage may occur and reliability may be affected.
1. maximum package power dissipation limits must be observed to prevent thermal shutdown activation.
2. this device series contains esd protection and exceeds the following tests:
human body model 2000 v per mil−std−883, method 3015.
machine model method 200 v.
3. tlow = 0°c for mc34167 thigh = + 70°c for mc34167
= −40°c for mc33167 = + 85°c for mc33167