SI9160BQ-T1 Vishay, SI9160BQ-T1 Datasheet - Page 6

• Manufacturer Part Number: SI9160BQ-T1
• Description: IC, VOLTAGE MODE PWM CTRL, 6V, TSSOP-16
• Manufacturer: Vishay

Specifications of SI9160BQ-T1

• Input Voltage: 6V
• Output Voltage: 5.2V
• Output Current: 10mA
• Frequency: 2MHz
• Power Dissipation Pd: 925mW
• Supply Voltage Range: 2.7V To 6V
• Digital Ic Case Style: TSSOP
• No. Of Pins: 16
• Mounting Style: SMD/SMT
• Package / Case: TSSOP-16
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Si9160
Vishay Siliconix
PIN DESCRIPTION
Pin 1: V
The positive power supply for all functional blocks except
output driver. A bypass capacitor of 0.1 mF (minimum) is
recommended.
Pin 2: N/C
There is no internal connection to this pin.
Pin 3: D
Used to set the maximum duty cycle.
Pin 4: COMP
This pin is the output of the error amplifier. A compensation
network is connected from this pin to the FB pin to stabilize the
system. This pin drives one input of the internal pulse width
modulation comparator.
Pin 5: FB
The inverting input of the error amplifier. An external resistor
divider is connected to this pin to set the regulated output
voltage. The compensation network is also connected to this
pin.
Pin 6: NI
The non-inverting input of the error amplifier.
operation it is externally connected to V
reference.
Pin 7: V
This pin supplies a 1.5-V reference.
Pin 8: GND (Ground)
Pin 9: ENABLE
A logic high on this pin allows normal operation. A logic low
places the chip in the standby mode. In standby mode, normal
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6
PIN CONFIGURATION AND ORDERING INFORMATION
COMP
D
V
GND
V
N/C
MAX
REF
FB
DD
NI
DD
REF
MAX
1
2
3
4
5
6
7
8
Order Number: Si9160BQ-T1
TSSOP-16
Top View
16
15
14
13
12
11
10
9
V
D
D
P
UVLO
C
R
ENABLE
S
GND
R
S
OSC
OSC
SET
REF
or an external
In normal
Si9160BQ-T1
Si9160BQ-T1—E3
operation is disabled, supply current is reduced, the oscillator
stops, and D
Pin 10: R
A resistor connected from this pin to ground sets the
oscillator’s capacitor (C
See the oscillator section of the description of operation.
Pin 11: C
An external capacitor is connected to this pin to set the
oscillator frequency.
Pin 12: UVLO
This pin will place the chip in the standby mode if the UVLO
voltage drops below 1.2 V.
exceeds 1.2 V, the chip operates normally. There is a built-in
hysteresis of 200 mV.
Pin 13: P
The negative return for the V
Pin 14: D
This CMOS push-pull output pin drives the external n-channel
MOSFET. This pin will be low in the standby mode. A
break-before-make function between D
Pin 15: D
This CMOS push-pull output pin drives the external p-channel
MOSFET. This pin will be high in the standby mode. A
break-before-make function between the D
Pin 16: V
The positive terminal of the power supply which powers the
CMOS output drivers. A bypass capacitor is required.
Part Number
f
OSC
]
R
OSC
OSC
OSC
GND
S
R
S
ORDERING INFORMATION
0.70
S
goes low while D
SET
C
OSC
Temperature Range
OSC
−25 to 85_C
−25 to 85_C
(at V
) charge and discharge current.
S
supply.
DD
R
Once the UVLO
goes high.
= 5.0 V)
S-40700—Rev. H, 19-Apr-04
S
Document Number: 70029
and D
S
and D
Package
R
TSSOP-16
TSSOP-16
SET
is built-in.
R
is built-in.
voltage
SET