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HN58X2464FPSRZ (HITACHI)
64K-BIT SERIAL INTERFACE EEPROM
TOP VIEW
INPUTS
A0 - A2
A0
1
8
V
IN
CC
SCL
WP
A1
2
7
WP
IN
IN
INPUT/OUTPUT
A2
3
6
SCL
IN
IN
SDA
GND
4
5
SDA
I/O
LTC1625CGN-E2 (LINEAR TECH)
SWTCHING REGULATOR
—TOP VIEW—
INPUTS
BOOST
EXTV
1
16
V
CC
IN
EXTV
FCB
SYNC
2
15
TK
I
RUN/SS
RUN/SS
3
14
SW
SW
SYNC
FCB
4
13
TG
TK
V
I
5
12
BOOST
TH
V
V
S.GND
6
11
INTV
CC
OUTPUTS
V
7
10
BG
OSENSE
BG
INTV
V
8
9
P.GND
PROG
TG
+ _
0.6 V
I
+
THB
I
1
_
0.5 V
5
I
TH
_
0.6 V
CL
+
gm=1mZ
V
FB
_
EA
+
1.19 V
+ _
0.6 V
_
3 uA
3
+
RUN/SS
6 V
_
1.28 V
OV
+
6
S.GND
1.19 V
1 uA
8
7
4
V
V
FCB
PROG
OSENSE
HKDV-900
: ADDRESS
: SERIAL CLOCK
: WRITE PROTECT
: SERIAL DATA
: TOPSIDE FLOATING DRIVER SUPPLY
: INTV
SWITCH
CC
CC
: FORCED CONTINUOUS
: ERROR AMPLIFIER COMPENSATION POINT
TH
: RUN CONTROL/SOFT START
: SWITCH NODE
: SYNC
: TOP MOSFET KELVIN SENSE
: MAIN POWER SUPPLY
IN
: OUTPUT VOLTAGE SENSE
OSENSE
: OUTPUT VOLTAGE PROGRAMMING
PROG
: BOTTOM GATE DRIVE
: INTERNAL 5.2 V REGULATOR
CC
: TOP GATE DRIVE
SYNC
+
2
TA
x11
_
_
BA
x11
+
+
REV
OSC
I
2
_
S
TOP
Q
R
+
SLEEP
B
_
SWITCH
LOGIC/
DROPOUT
COUNTER
SHUTDOWN
OVERVOLTAGE
FCNT
1.19 V
REF
5.2 V
LDO REG
+
F
_
1
EXTV
CC
15
TK
12
BOOST
13
TG
14
SW
11
INTV
CC
10
BG
9
P.GND
16
V
IN
+
4.7 V
_
IC
4-3
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Troubleshooting
