Electrical Characteristics: 0˚C < TA < 70˚C; 0˚C < TJ < 125˚C; 9V < VCC1 < 14V; 9V ≤ VCC2 ≤ 20V;
2.0V DAC Code(VID4 = VID3 =VID2 = VID1 = 0, VID0 = 1), CGATE(H) = CGATE(L) = 3.3nF, COFF = 390pF; Unless otherwise stated.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
ꢀ General Electrical Specifications
VCC1 Monitor Start Threshold
7.9
7.6
8.4
8.1
8.9
8.6
V
V
V
CC1 Monitor Stop Threshold
Hysteresis
CC1 Supply Current
CC2 Supply Current
Start - Stop
0.15
0.30
9.5
0.60
16
V
V
No Load on GATE(H), GATE(L)
No Load on GATE(H), GATE(L)
mA
V
2.5
4.5
mA
Note 1: The IC power dissipation in a typical application with VCC = 12V, switching frequency fSW = 250kHz, 50nc
MOSFETs and RθJA = 115°C/W yields an operating junction temperature rise of approximately 52°C, and a junction tem-
perature of 77°C with an ambient temperature of 25°C.
Note 2: Guaranteed by design, not 100% tested in production.
Block Diagram
C
OFF
V
FB
COMP
1.1V
PWM COMP
-
+
-
EA
-
OFF
TIME
+
DISCHARGE
COMP
-
CURRENT LIMIT
R
+
+
-
86mV
V
OUT
-
Q
+
-
0.25V
FAULT
LATCH
S
V
ID0
ID1
V
UVLO
V
CC1
DAC
V
V
ID2
ID3
V
CC2
GATE(H)
V
ID4
NONOVERLAP
LOGIC
+
-
GATE(L)
+
-
V
CC1
OVP
PWRGD
Gnd
5
CHERRY [ CHERRY SEMICONDUCTOR CORPORATION ]
