CS51313
Electrical Characteristics: 0˚C < T
A
< 70˚C; 0˚C < T
J
< 125˚C; 9V < V
CC
< 14V;
2.0V DAC Code (V
ID4
= V
ID3
=V
ID2
= V
ID1
= 0, V
ID0
= 1), C
GATE(H)
= C
GATE(L)
= 3.3nF, C
OFF
= 390pF; Unless otherwise stated.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
s
General Electrical Specifications
V
CC
Monitor Start Threshold
V
CC
Monitor Stop Threshold
Hysteresis
V
CC
Supply Current
Start - Stop
No Load on GATE(H), GATE(L)
7.9
7.6
0.15
8.4
8.1
0.30
12
8.9
8.6
0.60
20
V
V
V
mA
Note 1: All pins are rated 2kV except for the V
REF
pin (Pin 5) which is typically rated at 800V.
Note 2: The IC power dissipation in a typical application with V
CC
= 12V, switching frequency f
SW
= 250kHz, 50nc
MOSFETs and R
θJA
= 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 3: Guaranteed by design, not 100% tested in production.
Block Diagram
V
FB
1.10V
-
+
-
+
EA
COMP
PWM COMP
+
-
OFF
TIME
C
OFF
V
OUT
V
REF
V
ID0
V
ID1
V
ID2
V
ID3
V
ID4
+
-
0.25V
BANDGAP
REFERENCE
DAC
+
-
+
-
V
CC
OVP
PWRGD
5
+
-
CURRENT LIMIT
+
86mV
-
-
+
DISCHARGE
COMP
R
Q
FAULT
LATCH
S
UVLO
V
CC
GATE(H)
NONOVERLAP
LOGIC
GATE(L)
Gnd